Sociological Environmental Causes are Insufficient to Explain Autism Changepoints of Incidence
This study confirms the 1988 changepoint detected by EPA and adds 1981 and 1996 as additional changepoints. AD birthyear changepoints, particularly 1981 and 1996, cannot be explained by predicted birthyear changepoints based on altered thimerosal content in vaccines nor on revised editions of the DSM. Based on changepoint anaylses, environmental factors introduced universally to children in the US according to the schedule in the table below should be investigated. A prime environmental suspect is the introduction of human DNA contaminants in vaccines introduced to the US in 1979-1983, 1989 and 1995.