person id
age at enrollment
years of school completed
family income for year preceding enrollment (1000s 1973 $)
how long employed since school (months)
index of general health at enrollment (imputed by ghi00p if missing)
assigned insurance plan, by coinsurance rate
free care
consurance 25%
consurance 50%
consurance 95%
individual deductible plan
participant's sex
log of family income (2-year average, predicted for missing)
family income (1000s of 1973$) in two years before enrolment, adjusted for famil
whether family income (etinc) is in the lowest 20% for the data
index of general health at exit
cigatte smoking status at enrollment
weight (in kg) at enrolment
diastolic blood pressure at enrolment
diastolic blood pressure at exit
participant’s evaluation of his or her current health
how often participant experienced pain in the year before enrollment
how much participant worried about his or her health in the year before enrollme
outpatient expenses, year 2
whether any outpatient expenses, year 2
log of outpatient expenses, year 2 (if not 0)