Sustained high prevalence of sexually transmitted infections among female sex workers in Cambodia: high turnover seriously challenges the 100% condom use programme

Table 2 STI prevalence among FSWs, by duration of sex work

STI prevalence	Worked as FSW ≥ 12 months		Worked as FSW> 12 months		Chi square P Value	Total
	n/N*	% (95% CI)**	n/N	% (95% CI)**		n/N	% (95% CI)**
Syphilis, (RPR/TPPA)	19/674	1.3 (0.7–2.3)	15/404	3.8 (1.9–7.3)	0.011	34/1078	2.3 (1.3–3.9)
Chlamydia	109/668	17.9 (13.9–22.9)	42/395	9.0 (5.5–14.3)	0.003	151/1063	14.4 (11.0–18.6)
Gonorrhoea	82/666	16.5 (11.4–23.4)	40/395	7.7 (4.3–12.9)	0.01	122/1061	13.0 (9.2–18.0)
Any STI***	172/666	30.0 (23.8–37.1)	77/395	15.8 (11.4–21.5)	<0.001	249/1061	24.4 (19.8–29.7)

*N = number of specimens tested; number varied because among FSWs for whom duration of sex work was known, 15 FSWs did not submit swabs and 2 swabs were not tested for gonorrhoea
**CI = confidence interval
**Any STI = number of women with at least one of the bacterial STIs

ISSN: 1471-2334