. 2021 May 19;190(11):2374–2383. doi: 10.1093/aje/kwab147

Table 1.

Sample Characteristics (%) for the Total Sample and Stratified by Endtime Community State Type Groupings (n = 572), Longitudinal Study of Vaginal Flora, Alabama, 1999–2002

Characteristic	Total(n = 572)	CST I/II/V ^a (n = 97)	CST III ^b (n = 186)	CST IV-A ^c (n = 112)	CST IV-B ^d (n = 150)
Mean change in PSS^e^,^f	−0.16^g	−0.64^g	−0.64^g	1.63^g	−0.36^g
≥5-unit increase in PSS^h	23.43^g	18.48^g	20.71^g	33.04^g	21.05^g
Baseline PSS^e^,^f	16.8	16.5	17.1	16.0	17.0
Educational level^h
More than high school	61.81	66.11	63.96	60.22	58.55
High school or less	38.19	33.89	36.04	39.78	41.45
Monthly household income, $ⁱ
<500	22.14	21.32	19.62	29.39	23.33
500–3,000	27.53	21.52	34.66	24.46	24.18
>3,000	50.33	57.16	45.72	46.15	52.49
Race^h
Black	76.13^g	72.41^g	84.20^g	82.17^g	73.66^g
White	23.87^g	27.59^g	15.80^g	17.83^g	26.34^g
Mean age^f	29.76	29.52	29.17	30.31	29.96
Marital statusⁱ
Not married	80.05	78.54	81.85	77.66	79.91
Married	19.95	21.46	18.15	22.34	20.09
Condom useⁱ
Never	66.77^g	51.31^g	72.47^g	86.59^g	68.06^g
Rarely	3.13^g	4.52^g	2.46^g	2.10^g	3.61^g
Sometimes	2.27^g	3.02^g	3.11^g	0.00^g	1.94^g
Often	7.38^g	2.75^g	6.75^g	6.24^g	8.58^g
Always	20.45^g	38.39^g	15.22^g	5.07^g	17.81^g
No. of sexual partnersⁱ
0	26.05	21.83	31.55	29.07	19.90
1	68.07	74.01	62.20	66.65	71.33
2 or more	5.87	4.15	6.25	4.27	8.77
Sexual partner concurrenceⁱ
None	56.09	58.87	59.51	58.46	45.11
Unlikely	37.84	37.06	33.55	36.17	46.97
Likely	2.65	3.08	3.17	2.63	2.24
Definite	3.4	1.00	3.77	2.73	5.68

Abbreviation: BV, bacterial vaginosis; BVAB1, bacterial vaginosis–associated bacterium 1; CST, community state type; PSS, Perceived Stress Scale.

^a Lactobacillus crispatus–, L. gasseri–, L. jensenni–dominated.

^b L. iners–dominated.

^c Molecular-BV, BVAB1–dominated.

^d Molecular-BV, Atopobium vaginae–dominated.

^e Values are expressed as mean.

^f Tested using 1-way analysis of variance.

^g Statistically significant (P < 0.05). Analyses use inverse probability weights to correct for original case-control selection.

^h Tested using χ² test.

ⁱ Tested using Kruskal-Wallis test.