Table 1.

Descriptive characteristics of the study population

Groups		Age					pH Value
	N	Min.	Mean	Max.	SD	SE	4.5	5.0	5.0–6.0	6.5+
A − N−	19	22	41	62	10.42	2.46	6	4	4	5
A – N*	13	49	61	83	10.11	2.80	2	0	1	10
A − N+	1	53	53	53	NA	NA	0	0	1	0
A + N−	28	21	34	59	7.83	1.48	0	22	5	1
A + N*	5	26	44	74	19.73	8.82	0	2	1	2
A + N+	11	21	31	41	6.49	1.96	0	5	6	0
Total	77						8	33	18	18

* Amsel test: A− means bacterial vaginosis (BV)-negative; A+ means BV-positive

* Nugent score: N− means BV-negative; N* means intermediate; N+ means BV-positive

* Abbreviations: SD Standard deviation, SE Standard error