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. 2015 Apr;45(4):1062-9.
doi: 10.1007/s10803-014-2262-z.

Differences in autism spectrum disorders incidence by sub-populations in Israel 1992-2009: a total population study

Raanan Raz  1 , Marc G Weisskopf, Michael Davidovitch, Ofir Pinto, Hagai Levine
Affiliations

Differences in autism spectrum disorders incidence by sub-populations in Israel 1992-2009: a total population study

Raanan Raz et al. J Autism Dev Disord. 2015 Apr.

Abstract

We analyzed data from the Israeli National Insurance Institute (NII). Autism Spectrum Disorder (ASD) incidence was calculated for all children born in Israel 1992-2009, and by population groups. Overall, 9,109 ASD cases among 2,431,649 children were identified. ASD cumulative incidence by age 8 years increased 10-fold during 2000-2011, from 0.49% to 0.49%, while other child disabilities in NII increased only 1.65-fold. There was a consistent increase in ASD incidence with advancing birth cohorts born 1992-2004, stabilizing among those born 2005-2009. ASD rates among Israeli Arabs were substantially lower, and increased about 10 years later than the general population. The findings suggest a role for ASD awareness, accessing of the government benefit, or the way the concept of ASD is perceived.

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Figures

Figure 1
Figure 1
Cumulative incidence of ASD and non-ASD child disability benefits at NII at age 8 in the total population born in Israel 1992-2003 by birth year, as a percentage of 1992 cumulative incidence. ASD = Autism spectrum disorders; NII = National Insurance Institute of Israel.
Figure 2
Figure 2
Male:Female ratio of autism spectrum disorders cases at age 8, total population born in Israel, 1992-2003.
Figure 3
Figure 3
Cumulative incidence of Autism spectrum disorders in the total population born in Israel, 1992-2009. Different lines represent different birth cohorts, and are ordered from darkest to brightest. The birth cohort is noted at the end of each line, where the data for that year ends. The age of the children (cohort age) is indicated on the x-axis.
Figure 4
Figure 4
Cumulative incidence of autism spectrum disorders in the total population born in Israel 1992-2009, by birth cohort and population group. X axes represent cohort age (in years), Y axes represent cumulative incidence. Different lines represent different birth cohorts, and are ordered from darkest to brightest. The birth cohort is noted at the end of each line, where the data for that year ends. Y axes are kept in the same scale, for correct comparison of cumulative incidence levels. (A) General Population: Total population excluding Israeli Arabs and ultraorthodox Jews. (B) Israeli Arabs. (C) Ultraorthodox Jews.
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