Prevalence of HIV and Syphilis Infection among Men Who Have Sex with Men in China: A Meta-Analysis

Table 2

Basic information of the 84 included studies.

First author, published year	Sample size	Sampling methods	Location	Economy status	Prevalence (%)
					HIV	Syphilis
Liang, 2011 [35]	511	Multiple methods	Foshan	Developed	7.0	8.0
Sun, 2009 [50]	401	Multiple methods	Dalian	Developed	4.2	17.5
Yang, 2012 [72]	264	VCT	Fuyang	Developing	5.7
Chen, 2012 [15]	400	Snow ball	Guilin	Developing	3.5	4.0
Wen, 2010 [64]	452	Snow ball	Guangzhou	Developed	4.9	6.0
Huang, 2011 [32]	395	Snow ball	Hefei	Developing	3.0	13.4
Wang, 2009 [54]	1348	Multiple Methods	Heilongjiang	Developing	2.3	14.8
Wang, 2010 [61]	200	Snow ball	Lanzhou	Developing	7.0	12.5
Wang, 2012 [58]	400	RDS	Mianyang	Developing	11.0	23.5
Lu, 2011 [40]	354	RDS	Nanchang	Developing	4.2	7.9
Chen, 2010 [3]	469	Snow ball	Nanning	Developing	1.7	10.7
Bao, 2009 [11]	6101	RDS	14 cities	Classified^a	6.3	14.0
Chen, 2012 [16]	300	Snow ball	Yangzhou	Developed	7.3	22.0
Li, 2009 [34]	1773	Multiple methods	Chongqing	Developing	10.6	8.4
Guo, 2009 [27]	204	Venues-based	Tianjin	Developed	5.9	18.7
Liu, 2012 [90]	507	Snow ball	Changsha	Developed	4.3	25.1
Qu, 2011 [91]	805	Snow ball	2 cities	Developed	3.7	14.1
Chen, 2011 [12]	831	VCT	Kunming	Developing	11.4	13.6
Zhou, 2011 [83]	1166	Snow ball	Chongqing	Developing	14.8	8.7
Han, 2012 [92]	272	Venues-based	Taiyuan	Developing	8.5	13.6
Tang, 2011 [93]	408	Venues-based	Guilin	Developing	2.5	4.9
Xu, 2011 [69]	436	Venues-based	Liaoning	Dropped out^b	3.0	5.0
Bai et al., 2011 [94]	280	Snow ball	Suzhou	Developed	7.1	15.0
Zhou, 2011 [95]	491	RDS	Chongqing	Developing	14.9	5.1
Fan, 2012 [47]	500	RDS	Beijing	Developed	8.0	22.0
Liao et al., 2011 [96]	2996	Multiple methods	Shandong	Developed	2.5	5.5
Feng et al., 2009 [97]	2044	Venues-based	Chongqing	Developing	11.5	8.9
He, 2009 [29]	423	RDS	Guangzhou	Developed	1.3	14.8
Eric, 2011 [98]	288	Snow ball	Yuxi	Developing	10.8
Zheng, 2012 [81]	157	Multiple methods	Beijing	Developed	2.5	7.0
Wei, 2011 [63]	220	Snow ball	Taizhou	Developing	13.4	14.5
Zhong et al., 2011 [99]	379	RDS	Guangzhou	Developed	5.2	17.5
Zhang, 2012 [74]	503	RDS	Chongqing	Developing	15.7	6.6
Xiao, 2009 [66]	1692	Multiple methods	Chongqing	Developing	10.8	8.6
Xiao, 2010 [67]	4983	Multiple methods	20 cities	Dropped out^b	2.9	9.8
Zhang et al., 2011 [100]	302	Snow ball	Beijing	Developed	9.9	19.2
Zhang et al., 2012 [101]	3314	Snow ball	Chongqing	Developing	14.2	9.4
Zhang, 2013 [75]	463	Snow ball	Harbin	Developing	9.5	14.3
Guo et al., 2009 [102]	433	Venues-based	2 cities	Developed	5.8	27.7
Ruan et al., 2009 [103]	541	Multiple methods	Beijing	Developed	4.8	19.8
Zou et al., 2010 [104]	429	Internet	2 cities	Classified^a	4.8	11.4
Wang, 2011 [105]	2020	Surveillance	4 cities	Developing	2.3
Gao, 2012 [106]	962	Multiple methods	Beijing	Developed	6.3	17.7
Zhou et al., 2010 [107]	550	Multiple methods	Beijing	Developed	4.5
Zhou, 2012 [108]	294	VCT	Shanghai	Developed	6.1	9.5
Ouyang, 2009 [44]	617	RDS	Chongqing	Developing	16.8	10.9
Meng, 2010 [42]	287	Multiple methods	Changde	Developing	3.5	12.9
Tang, 2012 [52]	303	Multiple methods	Dazhou	Developing	3.6	1.7
Sun, 2012 [49]	2006	Multiple methods	Dalian	Developed	5.2	16.6
Dai, 2011 [109]	1315	VCT	Guangzhou	Developed	5.4	6.8
Mou, 2012 [110]	1526	Venues-based	Guangzhou	Developed	5.7
Wen, 2010 [64]	452	Snow ball	Guangzhou	Developed	4.9	6.0
Wang, 2011 [111]	300	RDS	Kunshan	Developed	5.3	25.0
Sun, 2010 [112]	1350	RDS	2 cities	Developing	5.2	7.3
Zhu, 2011 [88]	259	Surveillance	Wuxi	Developed	13.9	25.1
Zhang, 2009 [76]	231	RDS	Urumqi	Developing	2.2	10.8
Chen, 2011 [113]	889	Snow ball	Lanzhou	Developing	6.0	13.6
Hong et al., 2009 [114]	593	Venues-based	Changzhou	Developed	13.7	31.2
Liu, 2012 [37]	661	Snow ball	Nanjing	Developed	3.9	11.5
He, 2012 [115]	235	Multiple methods	Geermu	Developing	4.3	0.9
Gong, 2010 [24]	252	Snow ball	Quanzhou	Developing	2.6	2.2
Zhang, 2012 [77]	300	RDS	Shenzhen	Developed	7.0	12.0
Pan, 2012 [45]	675	Multiple methods	Shenzhen	Developed	8.0	41.2
Shi, 2010 [116]	906	Venues-based	Shenzhen	Developed	4.2	14.5
Cai, 2012 [117]	5232	VCT	Shenzhen	Developed	6.5	21.0
Wang, 2010 [55]	900	RDS	Shenyang	Developed	9.3	11.0
Wang, 2011 [118]	450	Venues-based	Shijiazhuan	Developing	2.2	7.6
Wang, 2010 [61]	150	Snow ball	Shijiazhuan	Developing	6.7	11.3
Bai et al., 2011 [119]	280	Multiple methods	Suzhou	Developed	7.3	22.0
Zhang et al., 2011 [73]	717	Multiple methods	Suzhou	Developed	8.1	14.6
Xu et al., 2012 [70]	211	Multiple methods	Taizhou	Developing	10.0	11.8
Wang et al., 2011 [57]	201	Snow ball	Urumqi	Developing	6.5	7.0
Liu et al., 2010 [38]	456	RDS	Wuhan	Developed	6.6	21.9
Zhang et al., 2011 [80]	404	Snow ball	Xining	Developing	7.2	8.4
Wang et al., 2010 [62]	750	Multiple methods	Yangzhou	Developed	9.3	22.8
Chen et al., 2012 [14]	218	Snow ball	Chongqing	Developing	16.5	15.1
Yang et al., 2011 [71]	305	Multiple methods	Dali	Developing	3.0	2.0
Luo et al., 2012 [41]	1237	Snow ball	13 cities	Developing	8.2	3.9
Xu, 2010 [68]	1864	Multiple methods	4 cities	Classified^a	6.7
Ding et al., 2010 [19]	743	Snow ball	Chongqing	Developing	16.6	8.5
Ding et al., 2010 [20]	202	Snow ball	Chongqing	Developing	12.9	5.0
Li, 2009 [34]	1691	Multiple methods	Chongqing	Developing	10.9	8.6
Feng, 2010 [22]	946	Snow ball	Chongqing	Developing	15.8
Guo et al., 2012 [25]	109	Surveillance	Zunyi	Developing	10.1	1.0

Study sites were classified into different economy status when subgroup analysis was conducted; ^bStudy was dropped out then subgroup analysis was conducted.