www.biomedcentral.com

Table 4
Distribution of select variables for the gap between first vaginal intercourse and the first sexual intercourse in exchange for money for female sex workers (FSWs).
			Gap between first vaginal intercourse and first sexual intercourse in exchange for money (years)*

Variable	Variable categories	Total (6646)	None (N = 922) (% of total) [% of N]	>0–2 (N = 481) (% of total) [% of N]	>2–5 (N = 1062) (% of total) [% of N]	>5–10 (N = 2102) (% of total) [% of N]	>10–15 (N = 1393) (% of total) [% of N]	>15 (N = 686) (% of total) [% of N]

Age at starting sex work (years)†	12–15	580	481 (82.9) [52.2]	98 (16.9) [20.4]	1 (0.2) [0.1]	0	0	0
	16–19	1391	414 (29.8) [44.9]	348 (25.0) [72.3]	589 (42.3) [55.5]	40 (2.9) [1.9]	0	0
	20–24	2017	26 (1.3) [2.8]	34 (1.7) [7.1]	452 (22.4) [42.6]	1432 (71.0) [68.1]	73 (3.6) [5.2]	0
	25–29	1763	0	1 (0.1) [0.2]	19 (1.1) [1.8]	613 (34.8) [29.2]	1087 (61.7) [78.0]	43 (2.4) [6.3]
	30–34	692	1 (0.1) [0.1]	0	1 (0.1) [0.1]	17 (2.5) [0.8]	228 (32.9) [16.4]	445 (64.3) [64.9]
	> = 35	203	0	0	0	0	5 (2.5) [0.4]	198 (97.5) [28.9]

Type of FSW†	Street-based	5010	364 (7.3) [39.5]	316 (6.3) [65.7]	846 (16.9) [79.7]	1731 (34.6) [82.4]	1179 (23.5) [84.6]	574 (11.5) [83.7]
	Home-based	1497	508 (33.9) [55.1]	149 (10.0) [31.0]	197 (13.2) [18.5]	337 (22.5) [16.0]	199 (13.3) [14.3]	107 (7.1) [15.6]
	Brothel-based	139	50 (36.0) [5.4]	16 (11.5) [3.3]	19 (13.7) [1.8]	34 (24.5) [1.6]	15 (10.8) [1.1]	5 (3.6) [0.7]

Marital status†‡	Never married	1116	816 (73.1) [88.5]	189 (16.9) [39.3]	82 (7.3) [7.7]	24 (2.2) [1.1]	4 (0.4) [0.3]	1 (0.1) [0.1]
	Currently married	2697	58 (2.2) [6.3]	170 (6.3) [35.3]	550 (20.4) [51.8]	1083 (40.2) [51.5]	578 (21.4) [41.5]	258 (9.6) [37.6]
	Others	2833	48 (1.7) [5.2]	122 (4.3) [25.4]	430 (15.2) [40.5]	995 (35.1) [47.3]	811 (258.6) [58.2]	427 (15.1) [62.2]

Caste†§	Forward	333	33 (9.9) [3.6]	25 (7.5) [5.2]	59 (17.7) [5.6]	104 (31.2) [4.9]	69 (20.7) [5.0]	43 (12.9) [6.3]
	Backward	2805	586 (20.9) [63.6]	242 (8.6) [50.3]	439 (15.7) [41.3]	812 (28.9) [38.6]	510 (18.2) [36.6]	216 (7.7) [31.5]
	Scheduled	2350	209 (8.9) [22.7]	131 (5.6) [27.2]	388 (16.5) [36.5]	799 (34.0) [38.0]	566 (24.1) [40.6]	257 (10.9) [37.5]
	Scheduled tribe	698	37 (5.3) [4.0]	61 (8.7) [12.7]	120 (17.2) [11.3]	237 (34.0) [11.3]	134 (19.2) [9.6]	109 (15.6) [15.9]
	Not applicable	458	55 (12.0) [6.0]	22 (4.8) [4.6]	56 (12.2) [5.3]	150 (32.8) [7.1]	114 (24.9) [8.2]	61 (13.3) [8.9]

Education level†	Illiterate	4965	576 (11.6) [62.5]	322 (6.5) [66.9]	765 (15.4) [72.0]	1589 (32.0) [75.6]	1101 (22.2) [79.0]	612 (12.3) [89.2]
	Primary education (classes I to V)	1206	242 (20.1) [26.2]	104 (8.6) [21.6]	204 (16.9) [19.2]	382 (31.7) [18.2]	215 (17.8) [15.4]	59 (4.9) [8.6]
	More than primary education	475	104 (21.9) [11.3]	55 (11.6) [11.4]	93 (19.6) [8.8]	131 (27.6) [6.2]	77 (16.2) [5.5]	15 (3.2) [2.2]

Rural-urban area from where FSW was sampled†¶	Rural	1446	348 (24.1) [37.7]	142 (9.8) [29.5]	224 (15.5) [21.1]	362 (25.0) [17.2]	228 (15.8) [16.4]	142 (9.8) [20.7]
	Urban small	748	131 (17.5) [14.2]	57 (7.6) [11.9]	143 (19.1) [13.5]	215 (28.7) [10.2]	142 (19.0) [10.2]	60 (8.0) [8.7]
	Urban medium	2838	299 (10.5) [32.4]	181 (6.4) [37.6]	460 (16.2) [43.3]	952 (33.5) [45.3]	665 (23.4) [47.7]	281 (9.9) [41.0]
	Urban large	1614	144 (8.9) [15.6]	101 (6.3) [21.0]	235 (14.6) [22.1]	573 (35.5) [27.3]	358 (22.2) [25.7]	203 (12.6) [29.6]

*None denotes that the age at first vaginal intercourse and at starting sex work was same. †p < 0.001, Chi-square test; data not available for 2 FSWs. ‡Others include separated/divorced/widowed. §Not applicable for those belonging to religion other than Hindu. ¶Urban small were towns with population <50000; urban medium were towns/cities with population 50001 – 200000; urban large were cities with population more than 200000; this classification was done based on Census of India data for each sub-site.
Dandona et al. BMC International Health and Human Rights 2006 6:5 doi:10.1186/1472-698X-6-5

Table 4