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Table 2 Changes in HIV prevalence stratified by demographic/risk characteristics among men who have sex with men in Guangxi, 2008 to 2012

From: HIV and syphilis prevalence trends among men who have sex with men in Guangxi, China: yearly cross-sectional surveys, 2008–2012

  2008 2009 2010 2011* 2012   
Variable % (n/N) % (n/N) % (n/N) % (n/N) % (n/N) p ptrend
Age
  ≤25 1.6(8/492) 1.4(7/517) 2.2(10/461) 4.3(16/376) 2.7(15/575) 0.04 0.03
  >25 1.8(12/654) 1.2(10/834) 3.8(30/796) 2.0(19/938) 4.5(32/726) <0.001 0.001
Current marital status
  Never married 1.5(12/813) 1.5(14/954) 2.5(22/879) 3.6(24/686) 3.9(39/1013) 0.001 <0.001
  Other 2.4(8/333) 0.8(3/397) 4.8(18/377) 1.8(11/627) 2.8(8/288) 0.004 0.58
Registered Guangxi resident
  Yes 1.5(14/957) 1.2(14/1181) 2.9(32/1095) 2.8(33/1183) 3.7(41/1142) <0.001 <0.001
  No, i.e., a migrant 3.2(6/189) 1.8(3/170) 5.1(8/161) 1.6(2/129) 3.8(6/159) 0.37 0.75
Education
  Junior high school or lower 1.4(4/278) 1.3(5/398) 4.2(14/339) 2.4(5/211) 3.9(10/260) 0.05 0.03
  Senior high school 1.4(6/422) 0.8(4/499) 4.0(19/485) 2.4(14/586) 3.1(15/489) 0.01 0.02
  College or higher 2.2(10/446) 1.8(8/454) 1.6(7/433) 3.1(16/517) 4.1(22/552) 0.09 0.02
Had sex with male in the past 6 months
  Yes 1.9(17/876) 1.4(16/1109) 2.8(25/906) 2.8(30/1094) 3.7(32/873) 0.02 0.002
  No 0.8(2/248) 0.4(1/234) 4.4(15/341) 2.3(5/220) 3.6(15/426) 0.01 0.02
Used condom in the last male-male sex**
  Yes 2.4(12/504) 1.5(11/731) 2.9(19/660) 2.5(22/874) 3.5(23/667) 0.19 0.08
  No 1.4(5/364) 1.3(5/375) 2.7(6/227) 3.8(8/214) 4.5(9/201) 0.06 0.004
Used condom with male in the past 6 months**
  Yes 2.2(16/734) 1.6(16/1011) 3.0(24/808) 2.8(29/1045) 3.6(29/820) 0.07 0.02
  No 0.7(1/136) 0(0/96) 1.2(1/81) 2.1(1/47) 6.4(3/47) 0.04 0.01
Had sex with female in the past 6 months
  Yes 2.0(5/250) 0.7(2/302) 1.1(3/263) 1.9(7/372) 2.7(5/190) 0.43 0.34
  No 1.6(14/885) 1.4(15/1046) 3.7(36/983) 3.0(28/942) 3.8(42/1110) 0.001 <0.001
Received peer education in the past year
  Yes 1.6(8/516) 1.2(10/823) 3.3(27/836) 1.8(14/804) 3.8(26/694) 0.002 0.006
  No 1.9(12/629) 1.3(7/528) 3.1(13/419) 4.0(20/506) 3.5(21/607) 0.04 0.008
Tested for HIV in the past year
  Yes 2.0(7/353) 1.3(9/716) 2.8(22/788) 2.0(16/826) 3.6(25/707) 0.04 0.03
  No 1.6(13/793) 1.3(8/635) 3.9(18/468) 4.0(19/485) 3.7(22/594) 0.003 0.001
Current syphilis infection
  Yes 6.8(4/59) 3.3(3/90) 8.3(8/99) 14.1(11/81) 14.2(15/109) 0.06 0.008
  No 1.5(16/1087) 1.1(14/1261) 2.8(32/1158) 2.0(24/1233) 2.7(32/1192) 0.009 0.009
  1. *The sample in 2011 is slightly different.
  2. **Only among men reporting sex with a male in the past 6 months.
  3. Note: The p values in bold were statistically significant trends which were highlighted to make them convenient to be identified.