nPAPI
instruments are available for the following cohorts/survey
years:
§Older
Men, all surveys (1966-1990)
§Young
Men, all surveys (1966-1981)
§Mature
Women, 1967-1992
§Young
Women, 1968-1993
§NLSY79,
1979-1992 plus 1978 household screener
§NLSY79
child, 1986-1998, plus portions of 2000 administration