The association between #circumcision and #ASD was first discovered and reported in
Prenatal and perinatal analgesic exposure and autism: an ecological link
Bauer & Kriebel, 2013. Env. Health
"For studies including boys born after 1995, there was a strong correlation between country-level (n = 9) autism/ASD prevalence in males and a country’s circumcision rate (r = 0.98). A very similar pattern was seen among U.S. states and when comparing the 3 main racial/ethnic groups in the U.S. "