Table 3.

Comparison of absolute and relative frequency distribution of the Amsel criteria before and after treatment

Criterion	A				Intra-group comparison before and after treatment (P values)*	B				Intra-group comparison before and after treatment (P values)*
	Before treatment		After treatment			Before treatment		After treatment
	N	%	N	%		N	%	N	%
Presence of vaginal discharge	35	100	8	22.9	P = 0.001	35	100	10	28.6	P < 0.001
Positive whiff test	35	100	13	37.1	P < 0.001	35	100	12	34.3	P < 0.001
Presence of clue cells	20	57.1	6	17.1	P = 0.001	22	62.9	13	37.1	P = 0.004
Vaginal pH > 4.5	35	100	10	28.6	P < 0.001	35	100	11	31.4	P < 0.001
Group (n)	35		35			35		35
Comparison of the two groups after treatment P > 0.05**

A sucrose gel, B metronidazole gel, N % number and percentage of patients within each endpoint for each treatment group, Group (n) the number of patients in each group

*Derived from the McNemar test

**Derived from the chi-square test