Table 1: Baseline participant characteristics and risk-factor status ( ).

CharacteristicMSD

Age in years30.75.9
Years of education completed11.61.5
Estimated gestational age at study entry20.57.9

%

Race
 Black57.3%
 White42.7%
Unemployed90.9%
Not currently married87.5%
On probation or parole33.0%

Self-reported substances used in the 30 days prior to treatment entry

MSD

Cocaine13.412.2
Heroin14.913.6
Other opioids0.83.2
Alcohol2.35.6

Risk MarkersMSD

Lifetime number of treatments for drug abuse3.13.1

%

Lifetime history of serious depression [yes]53.4
Lifetime history of prostitution charges [yes]24.7
Currently living in a private residence [yes]70.5
Recent heroin injection history [yes]30.3
Significant other currently uses drugs [yes]23.1

Note. Six questions on the ASI were used to measure the 6 risk markers listed at the bottom of the table. In addition to these 6 markers, the 3 baseline characteristics of age, race, and estimated gestational age at study entry were examined as possible risk markers.