TABLE 2.

Characteristics of study subjects’

	Alcohol screen positive (n = 23)	Alcohol screen negative (n = 28)
Mean age (SD)	35 (5.3)	35 (5.4)
Marital status
Married	83%	86%
Single	17%	14%
Ethnic background
European American	90%	90%
African American	4%	4%
Hispanic/Latina	2%	2%
Other, including unknown	4%	4%
Health habits
Current cigarette smoking	13%	7.1%
Regular exercise	70%	75%
Usual hours of sleep	6.9 (1 .6)	7.1 (.6)
Stress level (0 [none] to 3 [great])	2 (moderate)	2 (moderate)

Differences between the two groups were not statistically significant.