Circumcision in the United States.

The circumcision status of boys aged 12 through 17 years (born from 1949 to 1958) from a sample cohort of the National Health Examination Survey (NHES) cycle III, conducted from 1966-70, was analyzed. Over three-fourths of the cohort had been circumcised, reflecting circumcision practices in the 1950s. Prevalence of circumcision was more common in Whites, in families with higher income, and higher educated heads of household. Circumcision prevalence was the lowest in the South and highest in the Midwest. More recent national data are not available.