Table 2.

Behavioural characteristics of FSWs from 2013 to 2018 in Chongqing

Variables		2013	2014	2015	2016	2017	2018	Overall	P value	P for trend
		% (n)	% (n)	% (n)	% (n)	% (n)	% (n)	% (n)
HIV knowledge (≥6)	Yes	86.1 (2405)	83.6 (2338)	91.7 (2562)	84.0 (2350)	87.6 (2457)	89.1 (2500)	87.0 (14 612)	<0.001	<0.001
	No	13.9 (388)	16.4 (458)	8.3 (231)	16.0 (449)	12.4 (348)	10.9 (305)	13.0 (2179)
Condom use in the last commercial sex	Yes	79.7 (2167)	77.4 (2134)	93.8 (2604)	83.4 (2335)	87.0 (2439)	84.5 (2371)	84.3 (14 050)	<0.001	<0.001
	No	20.3 (552)	22.6 (625)	6.2 (171)	16.6 (464)	13.0 (366)	15.5 (434)	15.7 (2612)
CCU in the past month	Yes	41.7 (1130)	51.2 (1406)	69.7 (1925)	60.1 (1682)	47.7 (1337)	51.4 (1441)	53.7 (8921)	<0.001	<0.001
	No	58.3 (1578)	48.8 (1341)	30.3 (835)	39.9 (1117)	52.3 (1468)	48.6 (1364)	46.3 (7703)
Drug use	Yes	2.9 (81)	4.2 (116)	2.7 (74)	4.6 (129)	2.2 (63)	3.1 (88)	3.3 (551)	<0.001	0.322
	No	97.1 (2705)	95.8 (2631)	97.3 (2718)	95.4 (2670)	97.8 (2742)	96.9 (2717)	96.7 (16 183)
Injecting drug use	Yes	1.3 (35)	1.2 (32)	0.6 (18)	1.5 (43)	0.7 (19)	0.4 (11)	0.9 (158)	<0.001	0.002
	No	98.8 (2754)	98.9 (2760)	99.4 (2774)	98.5 (2756)	99.3 (2786)	99.6 (2794)	99.1 (16 624)
STI diagnosis in the past year	Yes	3.8 (106)	3.6 (100)	1.5 (43)	1.8 (50)	1.1 (31)	1.3 (37)	2.2 (367)	<0.001	<0.001
	No	96.2 (2671)	96.4 (2679)	98.5 (2747)	98.2 (2749)	98.9 (2774)	98.7 (2768)	97.8 (16 388)
HIV-related services	Yes	80.0 (2235)	86.0 (2405)	94.4 (2637)	93.4 (2615)	92.7 (2600)	88.1 (2470)	89.1 (14 962)	<0.001	<0.001
	No	20.0 (558)	14.0 (391)	5.6 (156)	6.6 (184)	7.3 (205)	11.9 (335)	10.9 (1829)

CCU, consistent condom use; FSWs, female sex workers; STIs, sexually transmitted infections.