Table 1.

Characteristics of Women in the Baseline, 6-month and 12-month Surveys

	All the women in baseline survey (N=467)	6-Month Survey		12-Month Survey
		Women excluded from the analyses (N=152)	Women eligible for the analyses (N=316)	Women excluded from the analyses (N=86)	Women eligible for the analyses (N=217)
Recruitment study site (%)FS	16.3	18.4	16.1	24.4	24.4
YF	17.6	19.1	14.6	33.7	22.1
PX	33.6	30.9	33.5	41.9	53.5
QH	32.6	31.6	35.8	N.A.	N.A.
Recruitment establishment type (%)
Roadside restaurant/brothel	5.8	9.2**	8.2**	5.8*	2.3*
Massage or beauty parlor	38.1	39.5**	34.2**	37.2*	41.5*
Boarding house	30.8	25.7**	41.5**	40.7*	39.2*
Hotel	17.1	14.5**	11.4**	12.8*	17.1*
Nightclub	8.1	11.2**	4.8**	3.5	N.A.
Mean age (S.D)	29.1 (8.2)	28.4 (8.6)**	30.8 (8.7)**	30.3 (8.7)	31.8 (8.2)
Ethnic Han (%)	66.6	64.5	69.0	64.0	68.2
Education above primary school (%)	65.7	65.8	66.5	67.4	71.0
Never married (%)	44.3	50.7**	37.0**	37.2	32.7
Ever given birth (%)	51.2	47.4**	60.4**	58.1	63.6
Ever had an abortion (%)	56.8	48.7	57.3	60.5	58.5
Median years as a sex worker (range)#	2.0 (0–26.0)	1.0 (0–19.0) **	2.0 (0–16.0) **	2.0 (0–15.0)	2.0 (0–19.0)
Median number of sex partners in last 30 days (range) $	4.0 (1–376)	2 (0–75) **	7 (1–500) **	3 (0–61) **	6 (1–101) **
Median number of sexual encounters (range) $	8.0 (1–395)	8 (1–91)**	15 (1–500) **	9 (1–76) **	12 (1–122) **
Reported 100% protected sex in last 30 days (%)	35.6	38.2	41.5	41.9	47.9

^#Among the women who had sex activities for money.

^$Among the women who had sex activities in the last 30 days.

^**Eligible women vs. ineligible women, p<0.01;

^*Eligible women vs. ineligible women, p<0.05