Table 2.

Population size estimates of female sex workers and 95% CI.

Site	RDSa sample size	Number of FSWsb who attended the program within the last 6 months (M)	SE for Mc	Percentd reporting visit (P; 95% CI)	SE for P	Population size estimate	SE for the population size estimatee	95% CI	Percent of FSWs among all women aged 15 to 49 years
1	220	57	7.4	20.3 (11.6-29.1)	4.5	281	70.1	133-407	0.8
2	196	100	10.0	25.0 (15.3-34.7)	4.9	400	87.2	225-566	4.8
3	153	111	10.5	46.1 (35.1-57.1)	5.7	241	37.2	166-311	2.8
4	202	372	19.2	68.7 (60.8-76.5)	4	541	42.0	455-619	3.5
5	197	84	9.2	20.6 (5.4-35.8)	7.8	408	160.4	93-722	3.9
6	200	28	5.3	14.3 (5.6-22.4)	4.2	194	67.0	62-325	2.6
7	165	34	5.8	11.0 (7.2-14.8)	1.9	310	75.4	162-458	1.2
8	198	46	6.8	16.7 (7.4-26.1)	4.8	275	88.7	101-449	3.0
9	208	165	12.8	20.5 (12.4-28.7)	4.2	805	175.1	456-1142	2.6

^aRDS: respondent-driven sampling.

^bFSWs: female sex workers.

^cCalculated using the normal approximation to Poisson distribution.

^dRDS-II adjusted percentages.

^eCalculated using the delta method.