=1 if black
=1 if alcohol problems
=1 if drug history
=1 if release supervised
=1 if married when incarc.
=1 if felony sentence
=1 if in N.C. pris. work prg.
=1 if property crime
=1 if crime against person
# prior convictions
years of schooling
# rules violations in prison
in months
time served, rounded to months
length follow period, months
max(time until return, follow)
=1 if duration right censored
log(durat)
1 minus cens