Table 1.

Participant Characteristics at Study Enrollment by Intervention Group

	Intervention		Control		Total
	n=733		n=617		n=1,350
	n	%	n	%	n	%
Age Group
Teen (age 18–19)	555	75.7	487	78.9	1042	77.2
Young adult (age 20–25)	178	24.3	130	21.1	308	22.8
Race/ethnicity
White	364	49.7	304	49.3	668	49.5
Latina	181	24.7	184	29.8	365	24.7
Black	107	14.6	96	15.6	203	15.0
Other	81	11.1	33	5.4	114	8.4
Educational attainment (n=1341)
High school or less	520	71.4	450	73.4	970	72.3
Some college	104	14.3	85	13.9	189	14.1
College degree	104	14.3	78	12.7	182	13.6
Health insurance type
Private	226	30.8	185	30.0	411	30.4
Medicaid/State	198	27.0	163	26.4	361	26.7
None	276	37.7	238	38.6	514	38.1
Don’t know	33	4.5	31	5.0	65	4.7
Nulliparous (n=1348)	547	74.7	423	68.7	970	72.0
Condom use at last sex (n=1345)	219	30.0	203	33.1	422	31.4
Any unprotected sex (past 3 months; n=1344)	463	63.7	406	65.8	869	64.7
New partner (past 3 months; n=1346)	171	23.4	129	21.0	300	22.3
Multiple partners	160	21.8	123	19.9	283	21.0
Perception of STI Risk (n=1345)
Very Likely	7	1.0	9	1.5	16	1.2
Likely	34	4.7	27	4.4	61	4.5
Unlikely	256	35.1	197	32.0	453	33.7
Very unlikely	433	59.3	382	62.1	815	60.6
History of CT/GC
Yes	106	14.5	98	15.9	204	15.1
No	604	82.4	494	80.1	1098	81.3
Unknown	23	3.1	25	4.1	48	3.6
History of any STI
Yes	174	23.7	144	23.3	318	23.6
No	522	71.2	432	70.0	954	70.7
Unknown	37	5.1	41	6.7	78	5.8
History of PID
Yes	24	3.3	16	2.6	40	3.0
No	696	95.0	581	94.2	1277	94.6
Don’t know	13	1.8	20	3.2	33	2.4
Practice setting
Family Planning	452	61.7	342	55.4	794	58.8
Abortion	281	38.3	275	44.6	556	41.2
IUD use initiated within first 6 mo	104	14.2	90	14.6	194	14.4

GC/CT: N gonorrhoeae or C trachomatis, PID: pelvic inflammatory disease. No significant differences were identified by study arm.