In rare cases, autism is strongly associated with agents that cause birth defects. Other proposed causes, such as childhood vaccines, are controversial. The vaccine hypothesis has been extensively investigated and shown to be false, lacking any scientific evidence. Andrew Wakefield published a small study in 1998 in the United Kingdom suggesting a causal link between autism and the trivalent MMR vaccine. After data included in the report was shown to be deliberately falsified, the paper was retracted, and Wakefield was struck off the medical register in the United URL ASD diagnoses continue to be over four times more common among boys (1 in 34) than among girls (1 in 154), and they are reported in all racial, ethnic and socioeconomic groups. Studies have been conducted in several continents (Asia, Europe and North America) that report a prevalence rate of approximately 1 to 2 URL A 2011 study reported a 2.6 percent prevalence of autism in South Korea. United States CDC's most recent estimate is that 1 out of every 59 children, or 16.8 per 1,000, have some form of ASD as of 2014. Centers for Disease Control and Prevention The number of diagnosed cases of autism grew dramatically in the U.S. in the 1990s and early 2000s. For the 2006 surveillance year, identified ASD cases were an estimated 9.0 per 1000 children aged 8 years (95\% confidence interval [CI] = 8.6–9.3). These numbers measure what is sometimes called "administrative prevalence", that is, the number of known cases per unit of population, as opposed to the true number of cases. This prevalence estimate rose 57\% (95\% CI 27\%–95\%) from 2002 to 2006. Eric Fombonne made some studies in the years 1992 and 1997. He found a prevalence of 16 per 10,000 for the global pervasive developmental disorder (PDD). The INSERM found a prevalence of 27 per 10,000 for the ASD and a prevalence of 9 per 10,000 for the early infantile autism in 2003.Expertise collective. Troubles mentaux. Dépistage et prévention chez l'enfant et chez l'adolescent. Inserm, 2003, 8 Those figures are considered as underrated as the WHO gives figures between 30 and 60 per 10,000. Plan autisme 2008–2010 The French Minister of Health gives a prevalence of 4.9 per 10,000 on its website but it counts only early infantile autism.Jean-François Chossy, La situation des autistes en France, besoins et perspectives, rapport remis au Premier ministre, La Documentation française : Paris, Septembre 2003.
In rare cases, autism is strongly associated with agents that cause birth defects. Other proposed causes, such as childhood vaccines, are controversial. The vaccine hypothesis has been extensively investigated and shown to be false, lacking any scientific evidence. Andrew Wakefield published a small study in 1998 in the United Kingdom suggesting a causal link between autism and the trivalent MMR vaccine. After data included in the report was shown to be deliberately falsified, the paper was retracted, and Wakefield was struck off the medical register in the United Kingdom. ASD diagnoses continue to be over four times more common among boys (1 in 34) than among girls (1 in 154), and they are reported in all racial, ethnic and socioeconomic groups. Studies have been conducted in several continents (Asia, Europe and North America) that report a prevalence rate of approximately 1 to 2 percent. A 2011 study reported a 2.6 percent prevalence of autism in South Korea. United States CDC's most recent estimate is that 1 out of every 59 children, or 16.8 per 1,000, have some form of ASD as of 2014. The number of diagnosed cases of autism grew dramatically in the U.S. in the 1990s and early 2000s. For the 2006 surveillance year, identified ASD cases were an estimated 9.0 per 1000 children aged 8 years (95\% confidence interval [CI] = 8.6–9.3). These numbers measure what is sometimes called "administrative prevalence", that is, the number of known cases per unit of population, as opposed to the true number of cases. This prevalence estimate rose 57\% (95\% CI 27\%–95\%) from 2002 to 2006. Eric Fombonne made some studies in the years 1992 and 1997. He found a prevalence of 16 per 10,000 for the global pervasive developmental disorder (PDD). The INSERM found a prevalence of 27 per 10,000 for the ASD and a prevalence of 9 per 10,000 for the early infantile autism in 2003.Expertise collective. Troubles mentaux. Dépistage et prévention chez l'enfant et chez l'adolescent. Inserm, 2003, 8 Those figures are considered as underrated as the WHO gives figures between 30 and 60 per 10,000. The French Minister of Health gives a prevalence of 4.9 per 10,000 on its website but it counts only early infantile autism.Jean-François Chossy, La situation des autistes en France, besoins et perspectives, rapport remis au Premier ministre, La Documentation française : Paris, Septembre 2003.
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Plan autisme 2008–2010