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Table 1 Results and summary of study characteristics (N = 272)

From: A spatiotemporal meta-analysis of HIV/syphilis epidemic among men who have sex with men living in mainland China

Study Characteristics n %
Language
 Chinese 172 63.2
 English 100 36.8
Region
 East 83 25.2
 Southcentral 74 22.4
 North 58 17.6
 Southwest 49 14.8
 Northeast 43 13.0
 Northwest 23 7.0
Published year
 2001–2007 16 5.9
 2008–2010 39 14.3
 2011–2012 55 20.2
 2013–2016 162 59.6
Study period
 2001–2007 42 15.4
 2008–2010 146 53.7
 2011–2012 108 39.7
 2013–2015 45 16.5
Sample size
 1−100 9 3.3
 101–500 126 46.3
 501–1000 71 26.1
 1001- 66 24.3
HIV infection description 228 83.8
Syphilis infection description 176 64.7
Condomless sex with male partner in past 1 month 82 30.1
Condomless sex with female in past 3 months 48 17.6
Unprotected sex with casual male partners in past 3 months 64 23.5