Modelling the impact and cost-effectiveness of the HIV intervention programme amongst commercial sex workers in Ahmedabad, Gujarat, India

Table 2 Prevalence of different sexually transmitted infections and HIV among CSWs in two cross-sectional surveys in 1999 and 2003 [6]

STI	1999 N = 314	Prevalence (%) (95%CI)	2003 N = 385	Prevalence (%) (95%CI)
Trichomonas†	128	40.8 (35.3–46.4)	106	27.5 (23.1–32.3)
Gonorrhoea‡	60	19.1 (14.9–23.9)	23	6.0 (3.8–8.8)
Chlamydia*	53	16.9 (12.9–21.5)	37	9.6 (6.9–13.0)
Syphilis RPR	76	24.2 (19.6–29.3)	67	17.4 (13.5–21.6)
Syphilis TPHA	130	41.4 (35.0–47.1)	155	40.3 (35.3–45.4)
	N = 314		N = 401
HIV**	37	11.7 (8.4–15.9)	53	13.2 (10.1–16.9)

CSWs: commercial sex workers † Wet Mount Microscopy and culture were used on vaginal swab sample ‡ Gram stain, culture in modified Thayer Martin (MTM)/modified New York culture (MNYC) media and antibiotic susceptibility test (and in 1999, PAGE2 as well) were used on endocervical swab sample. * PACE-2 test (and in 1999, Enzyme Immunoassay as well) were used on endocervical sample ** Double Enzyme-Linked ImmunoSorbent Assay (ELISA) test was used on serum sample. RPR: Rapid plasma regain. TPHA: Treponema Pallidum Haemagglutination test.

ISSN: 1471-2458