❓ WA parliamentary question regarding the statistical occurrences of autism from 1990-2002, and measles, mumps, and rubella cases with vaccination status in the last five years. The answer provides data on autism diagnoses and MMR cases, acknowledging data limitations and potential inaccuracies.
AnsweredQoN 1063Legislative Council
QuestionView source ↗
(1) What were the statistical occurrences of autism in the WA population for each year from 1990 to 2002?
(2) How many children contracted -
(a) measles;
(b) mumps; and
(c) rubella,
in each of the last five years?
(3) Of the children who contracted -
(a) measles;
(b) mumps; and
(c) rubella,
in each of the last five years how many had received vaccinations for these diseases?
(2) How many children contracted -
(a) measles;
(b) mumps; and
(c) rubella,
in each of the last five years?
(3) Of the children who contracted -
(a) measles;
(b) mumps; and
(c) rubella,
in each of the last five years how many had received vaccinations for these diseases?
AnswerView source ↗
Answered
4 September 2003
Responded by
Parliamentary Secretary representing the Minister for Health
Response time
23 days
(b) mumps; and (c) rubella, in each of the last five years?
(c) rubella, in each of the last five years?
in each of the last five years?
(b) mumps; and (c) rubella, in each of the last five years how many had received vaccinations for these diseases?
(c) rubella, in each of the last five years how many had received vaccinations for these diseases?
in each of the last five years how many had received vaccinations for these diseases?
It is not clear why there has been such an increase in diagnoses of autism in the last 15 years. Multiple reasons have been suggested in the scientific literature. With regards to international experience for example, the prevalence of autism in Minnesota, USA was reviewed in a recent publication. The authors note that the prevalence among children aged 6 to 11 years increased from 3 per 10,000 in 1991-1992 to 52 per 10,000 in 2001-2002 (a 17 fold increase). Data on the incidence of Autism in Western Australia prior to 1999 are not necessarily accurate, but some information has been derived from local researchers. Since 1999, all new reported cases of autism have been included on the Western Australian Autism Spectrum Disorder Register. Clinicians are not required by law to notify the Register or Department of Health or any other institution of a new case, but it is believed that the Register is ascertaining at least 90% of new cases. Western Australian clinicians have cooperated impressively in this notification system. No other state in Australia has reached consensus in diagnostic standards nor consensus in case ascertainment. Local researchers have estimated the number of new cases of autism diagnosed per year of birth as follows: Year of birth New cases of autism 1990 50 1991 50 1992 61 1993 76 1994 71 1995 74 Alternatively, estimates may be expressed in terms of the number of new cases of autism diagnosed in WA by year of diagnosis. An analysis for the period 1990-1995 inclusive, conducted by a Paediatrician analysing multiple data sources, provided the following estimates: Year of Diagnosis New cases of autism 1990 5 1991 10 1992 15 1993 22 1994 33 1995 50 The incidence of new diagnosis for 1996, 1997 and 1998 has not been identified. However, since 1999, the Western Australian Autism Spectrum Disorder Register contains the following data: Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
With regards to international experience for example, the prevalence of autism in Minnesota, USA was reviewed in a recent publication. The authors note that the prevalence among children aged 6 to 11 years increased from 3 per 10,000 in 1991-1992 to 52 per 10,000 in 2001-2002 (a 17 fold increase). Data on the incidence of Autism in Western Australia prior to 1999 are not necessarily accurate, but some information has been derived from local researchers. Since 1999, all new reported cases of autism have been included on the Western Australian Autism Spectrum Disorder Register. Clinicians are not required by law to notify the Register or Department of Health or any other institution of a new case, but it is believed that the Register is ascertaining at least 90% of new cases. Western Australian clinicians have cooperated impressively in this notification system. No other state in Australia has reached consensus in diagnostic standards nor consensus in case ascertainment. Local researchers have estimated the number of new cases of autism diagnosed per year of birth as follows: Year of birth New cases of autism 1990 50 1991 50 1992 61 1993 76 1994 71 1995 74 Alternatively, estimates may be expressed in terms of the number of new cases of autism diagnosed in WA by year of diagnosis. An analysis for the period 1990-1995 inclusive, conducted by a Paediatrician analysing multiple data sources, provided the following estimates: Year of Diagnosis New cases of autism 1990 5 1991 10 1992 15 1993 22 1994 33 1995 50 The incidence of new diagnosis for 1996, 1997 and 1998 has not been identified. However, since 1999, the Western Australian Autism Spectrum Disorder Register contains the following data: Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
Data on the incidence of Autism in Western Australia prior to 1999 are not necessarily accurate, but some information has been derived from local researchers. Since 1999, all new reported cases of autism have been included on the Western Australian Autism Spectrum Disorder Register. Clinicians are not required by law to notify the Register or Department of Health or any other institution of a new case, but it is believed that the Register is ascertaining at least 90% of new cases. Western Australian clinicians have cooperated impressively in this notification system. No other state in Australia has reached consensus in diagnostic standards nor consensus in case ascertainment. Local researchers have estimated the number of new cases of autism diagnosed per year of birth as follows: Year of birth New cases of autism 1990 50 1991 50 1992 61 1993 76 1994 71 1995 74 Alternatively, estimates may be expressed in terms of the number of new cases of autism diagnosed in WA by year of diagnosis. An analysis for the period 1990-1995 inclusive, conducted by a Paediatrician analysing multiple data sources, provided the following estimates: Year of Diagnosis New cases of autism 1990 5 1991 10 1992 15 1993 22 1994 33 1995 50 The incidence of new diagnosis for 1996, 1997 and 1998 has not been identified. However, since 1999, the Western Australian Autism Spectrum Disorder Register contains the following data: Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
Local researchers have estimated the number of new cases of autism diagnosed per year of birth as follows: Year of birth New cases of autism 1990 50 1991 50 1992 61 1993 76 1994 71 1995 74 Alternatively, estimates may be expressed in terms of the number of new cases of autism diagnosed in WA by year of diagnosis. An analysis for the period 1990-1995 inclusive, conducted by a Paediatrician analysing multiple data sources, provided the following estimates: Year of Diagnosis New cases of autism 1990 5 1991 10 1992 15 1993 22 1994 33 1995 50 The incidence of new diagnosis for 1996, 1997 and 1998 has not been identified. However, since 1999, the Western Australian Autism Spectrum Disorder Register contains the following data: Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
Year of birth New cases of autism 1990 50 1991 50 1992 61 1993 76 1994 71 1995 74 Alternatively, estimates may be expressed in terms of the number of new cases of autism diagnosed in WA by year of diagnosis. An analysis for the period 1990-1995 inclusive, conducted by a Paediatrician analysing multiple data sources, provided the following estimates: Year of Diagnosis New cases of autism 1990 5 1991 10 1992 15 1993 22 1994 33 1995 50 The incidence of new diagnosis for 1996, 1997 and 1998 has not been identified. However, since 1999, the Western Australian Autism Spectrum Disorder Register contains the following data: Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
Alternatively, estimates may be expressed in terms of the number of new cases of autism diagnosed in WA by year of diagnosis. An analysis for the period 1990-1995 inclusive, conducted by a Paediatrician analysing multiple data sources, provided the following estimates: Year of Diagnosis New cases of autism 1990 5 1991 10 1992 15 1993 22 1994 33 1995 50 The incidence of new diagnosis for 1996, 1997 and 1998 has not been identified. However, since 1999, the Western Australian Autism Spectrum Disorder Register contains the following data: Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
Year of Diagnosis New cases of autism 1990 5 1991 10 1992 15 1993 22 1994 33 1995 50 The incidence of new diagnosis for 1996, 1997 and 1998 has not been identified. However, since 1999, the Western Australian Autism Spectrum Disorder Register contains the following data: Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
The incidence of new diagnosis for 1996, 1997 and 1998 has not been identified. However, since 1999, the Western Australian Autism Spectrum Disorder Register contains the following data: Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
(2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
(c) rubella, in each of the last five years?
in each of the last five years?
(b) mumps; and (c) rubella, in each of the last five years how many had received vaccinations for these diseases?
(c) rubella, in each of the last five years how many had received vaccinations for these diseases?
in each of the last five years how many had received vaccinations for these diseases?
It is not clear why there has been such an increase in diagnoses of autism in the last 15 years. Multiple reasons have been suggested in the scientific literature. With regards to international experience for example, the prevalence of autism in Minnesota, USA was reviewed in a recent publication. The authors note that the prevalence among children aged 6 to 11 years increased from 3 per 10,000 in 1991-1992 to 52 per 10,000 in 2001-2002 (a 17 fold increase). Data on the incidence of Autism in Western Australia prior to 1999 are not necessarily accurate, but some information has been derived from local researchers. Since 1999, all new reported cases of autism have been included on the Western Australian Autism Spectrum Disorder Register. Clinicians are not required by law to notify the Register or Department of Health or any other institution of a new case, but it is believed that the Register is ascertaining at least 90% of new cases. Western Australian clinicians have cooperated impressively in this notification system. No other state in Australia has reached consensus in diagnostic standards nor consensus in case ascertainment. Local researchers have estimated the number of new cases of autism diagnosed per year of birth as follows: Year of birth New cases of autism 1990 50 1991 50 1992 61 1993 76 1994 71 1995 74 Alternatively, estimates may be expressed in terms of the number of new cases of autism diagnosed in WA by year of diagnosis. An analysis for the period 1990-1995 inclusive, conducted by a Paediatrician analysing multiple data sources, provided the following estimates: Year of Diagnosis New cases of autism 1990 5 1991 10 1992 15 1993 22 1994 33 1995 50 The incidence of new diagnosis for 1996, 1997 and 1998 has not been identified. However, since 1999, the Western Australian Autism Spectrum Disorder Register contains the following data: Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
With regards to international experience for example, the prevalence of autism in Minnesota, USA was reviewed in a recent publication. The authors note that the prevalence among children aged 6 to 11 years increased from 3 per 10,000 in 1991-1992 to 52 per 10,000 in 2001-2002 (a 17 fold increase). Data on the incidence of Autism in Western Australia prior to 1999 are not necessarily accurate, but some information has been derived from local researchers. Since 1999, all new reported cases of autism have been included on the Western Australian Autism Spectrum Disorder Register. Clinicians are not required by law to notify the Register or Department of Health or any other institution of a new case, but it is believed that the Register is ascertaining at least 90% of new cases. Western Australian clinicians have cooperated impressively in this notification system. No other state in Australia has reached consensus in diagnostic standards nor consensus in case ascertainment. Local researchers have estimated the number of new cases of autism diagnosed per year of birth as follows: Year of birth New cases of autism 1990 50 1991 50 1992 61 1993 76 1994 71 1995 74 Alternatively, estimates may be expressed in terms of the number of new cases of autism diagnosed in WA by year of diagnosis. An analysis for the period 1990-1995 inclusive, conducted by a Paediatrician analysing multiple data sources, provided the following estimates: Year of Diagnosis New cases of autism 1990 5 1991 10 1992 15 1993 22 1994 33 1995 50 The incidence of new diagnosis for 1996, 1997 and 1998 has not been identified. However, since 1999, the Western Australian Autism Spectrum Disorder Register contains the following data: Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
Data on the incidence of Autism in Western Australia prior to 1999 are not necessarily accurate, but some information has been derived from local researchers. Since 1999, all new reported cases of autism have been included on the Western Australian Autism Spectrum Disorder Register. Clinicians are not required by law to notify the Register or Department of Health or any other institution of a new case, but it is believed that the Register is ascertaining at least 90% of new cases. Western Australian clinicians have cooperated impressively in this notification system. No other state in Australia has reached consensus in diagnostic standards nor consensus in case ascertainment. Local researchers have estimated the number of new cases of autism diagnosed per year of birth as follows: Year of birth New cases of autism 1990 50 1991 50 1992 61 1993 76 1994 71 1995 74 Alternatively, estimates may be expressed in terms of the number of new cases of autism diagnosed in WA by year of diagnosis. An analysis for the period 1990-1995 inclusive, conducted by a Paediatrician analysing multiple data sources, provided the following estimates: Year of Diagnosis New cases of autism 1990 5 1991 10 1992 15 1993 22 1994 33 1995 50 The incidence of new diagnosis for 1996, 1997 and 1998 has not been identified. However, since 1999, the Western Australian Autism Spectrum Disorder Register contains the following data: Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
Local researchers have estimated the number of new cases of autism diagnosed per year of birth as follows: Year of birth New cases of autism 1990 50 1991 50 1992 61 1993 76 1994 71 1995 74 Alternatively, estimates may be expressed in terms of the number of new cases of autism diagnosed in WA by year of diagnosis. An analysis for the period 1990-1995 inclusive, conducted by a Paediatrician analysing multiple data sources, provided the following estimates: Year of Diagnosis New cases of autism 1990 5 1991 10 1992 15 1993 22 1994 33 1995 50 The incidence of new diagnosis for 1996, 1997 and 1998 has not been identified. However, since 1999, the Western Australian Autism Spectrum Disorder Register contains the following data: Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
Year of birth New cases of autism 1990 50 1991 50 1992 61 1993 76 1994 71 1995 74 Alternatively, estimates may be expressed in terms of the number of new cases of autism diagnosed in WA by year of diagnosis. An analysis for the period 1990-1995 inclusive, conducted by a Paediatrician analysing multiple data sources, provided the following estimates: Year of Diagnosis New cases of autism 1990 5 1991 10 1992 15 1993 22 1994 33 1995 50 The incidence of new diagnosis for 1996, 1997 and 1998 has not been identified. However, since 1999, the Western Australian Autism Spectrum Disorder Register contains the following data: Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
Alternatively, estimates may be expressed in terms of the number of new cases of autism diagnosed in WA by year of diagnosis. An analysis for the period 1990-1995 inclusive, conducted by a Paediatrician analysing multiple data sources, provided the following estimates: Year of Diagnosis New cases of autism 1990 5 1991 10 1992 15 1993 22 1994 33 1995 50 The incidence of new diagnosis for 1996, 1997 and 1998 has not been identified. However, since 1999, the Western Australian Autism Spectrum Disorder Register contains the following data: Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
Year of Diagnosis New cases of autism 1990 5 1991 10 1992 15 1993 22 1994 33 1995 50 The incidence of new diagnosis for 1996, 1997 and 1998 has not been identified. However, since 1999, the Western Australian Autism Spectrum Disorder Register contains the following data: Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
The incidence of new diagnosis for 1996, 1997 and 1998 has not been identified. However, since 1999, the Western Australian Autism Spectrum Disorder Register contains the following data: Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
Year of Diagnosis New cases of autism 1999 159 2000 173 2001 204 2002 Currently compiling The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
The prevalence of the disorder (expressed per unit of population at a point of time) has not been calculated. Therefore, it is not possible to comment accurately on the exact increase in prevalence of the disorder. However, it is clear that there has been an increase in new diagnosis in the last 15 years. (2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
(2) and (3) The number of persons notified to the Department with a diagnosis of measles, mumps, or rubella from 1998 to 2002, including their vaccination status, are listed in the following tables: MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
MEASLES 1998 1999 2000 2001 2002 Vaccinated 21 6 0 2 1 Unvaccinated 11 6 0 4 0 Unknown 18 7 11 3 3 MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
MUMPS 1998 1999 2000 2001 2002 Vaccinated 0 0 0 8 7 Unvaccinated 0 0 0 2 2 Unknown 37 39 39 18 6 RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
RUBELLA 1998 1999 2000 2001 2002 Vaccinated 0 0 0 1 0 Unvaccinated 0 0 0 1 2 Unknown 67 21 6 1 1 The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
The above data cannot be used to infer that measles, mumps or rubella are more common in vaccinated than unvaccinated persons for a number of reasons.
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