medicine expense in $
=1 if individual has supplemental health insurance through employer
Age
=1 if female
=1 if black or hispanic
household income in thousand $
number of illnesses
SSI/Income ratio
=1 if low income
Firm size
=1 if firm is in multiple locations
Years of education
Private insurance
Hiapanic
Married
V-good health
Good health
Fair health
Poor health
Poor
Middle income
Metropolitan stat area
Priority list cond
Black
log(drugexp)
Age-squared
log(income)
vg or good health
fair or poor health