Table 1.

Baseline Characteristics of Participants by Method Chosen at Baseline for Participants Who Submitted Two or More Slides Over the Study Period

	IUD (n=76)	CHC (n=58)	P
Age, Mean (SD)	26.7 (5.4)	24.4 (4.8)	0.01¥
Race	N (%)	N (%)
White	42 (55.3)	31 (54.4)	0.33^
African American	31 (40.8)	20 (35.1)
Other	3 (4.0)	6 (10.5)
Hispanic	1 (1.3)	2 (3.5)	0.58^
Education
Less than High School	2 (2.6)	5 (8.6)	0.19^
High School/Some college	53 (69.7)	34 (58.6)
College/Grad School	21 (27.6)	19 (32.8)
Marital Status
Single	36 (47.4)	35 (60.3)	0.33^
Married/living with partner	36 (47.4)	21 (36.7)
Separated/divorced	4 (5.3)	2 (3.5)
Insurance			0.48^
None	28 (36.8)	27 (46.6)
Private	40 (52.6)	27 (46.6)
Medicaid/Medicare	8 (10.5)	4 (6.9)
Low SES*	38 (50.0)	33 (56.9)	0.49
Current smoker	19 (25.03)	10 (17.2)	0.28
Use tampons	54 (71.14)	48 (83.8)	0.12
Use condoms always or mostly at baseline	28 (36.8)	34 (58.6)	0.05
Ever douched	29 (38.9)	18 (31.6)	0.40
Douched in the past 6 months	13 (17.1)	8 (13.8)	0.60
Lifetime # of male sexual partners, Mean (SD)	7.5 (8.4)	7.1 (8.3)	0.78¥
History of BV	57 (75.0)	47 (81.0)	0.41
History of any STI§	25 (32.9)	21 (36.2)	0.69
Baseline Nugent score
0–3 (negative)	61 (80.3)	55 (89.7)	0.19
4–6 (intermediate)	14 (18.4)	6 (10.3)

IUD – intrauterine device; CHC – combined hormonal contraception; SES – socioeconomic status; BV – bacterial vaginosis; SD – standard deviation; STI – sexually transmitted infection

Percentage may not equal 100 due to missing data

All p-values calculated using chi-square unless otherwise specified

^¥Value calculated using t-test

^{^}Value calculated using Fisher exact test

^*Receipt of public assistance or report of difficulty paying for basic necessities such as food, housing, transportation and medical care.

^§ Any self-reported history of STI including gonorrhea, chlamydia, Trichomonas vaginalis, syphilis, and genital herpes simplex infection