Table 1.

Demographic and behavioral characteristics of study population

	Mean ±SD
Age	20.5 ±2.9
Lifetime number of sexual partners	8.6 ±9.7
Age at first intercourse	16.1 ±1.8
Age of first menstruation	12.6 ±1.1
Race and Ethnicity	Number (%)
African American	8 (14.5%)
Asian	8 (14.5%)
White	16 (29.1%)
Other/mixed race	4 (7.3%)
Any plus Latina	19 (34.6%)
Behavioral Characteristics	Number (%)
Current tobacco smoker	14 (24.6%)
Current alcohol drinker	19 (33.3%)
Current oral contraceptive user	23 (40.3%)

Abbreviation: SD, standard deviation.