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Table 1 Changes in demographics and behaviors 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 (N = 1146) 2009 (N = 1351) 2010 (N = 1257) 2011* (N = 1314) 2012 (N = 1301)   
Variable % (n) % (n) % (n) % (n) % (n) p ptrend
Age
  ≤25 42.9(492) 38.3(517) 36.7(461) 28.6(376) 44.2(575) <0.001 0.15
  >25 57.1(654) 61.7(834) 63.3(796) 71.4(938) 55.8(726)   
Current marital status
  Never married 70.9(813) 70.6(954) 70.0(879) 52.2(686) 77.9(1013) <0.001 0.82
  Married 21.8(250) 24.3(328) 25.2(316) 38.6(507) 18.4(240)   
  Live with a partner 3.5(40) 1.3(17) 1.8(23) 3.7(48) 0.8(10)   
  Divorced/widowed 3.8(43) 3.8(52) 3.0(38) 5.5(72) 2.9(38)   
Registered Guangxi resident
  Yes 83.5(957) 87.4(1181) 87.2(1095) 90.2(1183) 87.8(1142) <0.001 <0.001
  No, i.e., a migrant 16.5(189) 12.6(170) 12.8(161) 9.8(129) 12.2(159)   
Education
  Junior high school or lower 24.3(278) 29.5(398) 27.0(339) 16.1(211) 20.0(260) <0.001 <0.001
  Senior high school 36.8(422) 36.9(499) 38.6(485) 44.6(586) 37.6(489)   
  College or higher 38.9(446) 33.6(454) 34.4(433) 39.3(517) 42.4(552)   
Had sex with male in the past 6 months
  Yes 77.9(876) 82.6(1109) 72.7(906) 83.3(1094) 67.2(873) <0.001 <0.001
  No 22.1(248) 17.4(234) 27.3(341) 16.7(220) 32.8(426)   
Used condom in the last male-male sex
  Yes 58.1(504) 66.1(731) 74.4(660) 80.3(874) 76.8(667) <0.001 <0.001
  No 41.9(364) 33.9(375) 25.6(227) 19.7(214) 23.2(201)   
Used condom with male in the past 6 months
  Yes 84.4(734) 91.3(1011) 90.9(808) 95.7(1045) 94.6(820) <0.001 <0.001
  No 15.6(136) 8.7(96) 9.1(81) 4.3(47) 5.4(47)   
Had sex with female in the past 6 months
  Yes 22.0(250) 22.4(302) 21.1(263) 28.3(372) 14.6(190) <0.001 0.01
  No 78.0(885) 77.6(1046) 78.9(983) 71.7(942) 85.4(1110)   
Used condom in the last sex with female**
  Yes 39.3(96) 46.0(138) 39.6(95) 80.1(298) 46.3(88) <0.001 <0.001
  No 60.7(148) 54.0(162) 60.4(145) 19.9(74) 53.7(102)   
Used condom with female in the past 6 months**
  Yes 56.4(137) 66.3(199) 68.1(171) 89.8(333) 64.0(121) <0.001 <0.001
  No 43.6(106) 33.7(101) 31.9(80) 10.2(38) 36.0(68)   
Ever used illegal drugs
  Yes 1.7(19) 1.0(13) 1.0(12) 0.1(1) 0.2(3) <0.001 <0.001
  No 98.3(1127) 99.0(1335) 99.0(1245) 99.9(1312) 99.8(1298)   
Received peer education in the past year
  Yes 45.1(516) 60.9(823) 66.6(836) 61.4(804) 53.3(694) <0.001 0.001
  No 54.9(629) 39.1(528) 33.4(419) 38.6(506) 46.7(607)   
Tested for HIV in the past year
  Yes 30.8(353) 53.0(716) 62.7(788) 63.0(826) 54.3(707) <0.001 <0.001
  No 69.2(793) 47.0(635) 37.3(468) 37.0(485) 45.7(594)   
HIV antibody positive***
  Yes 1.7(20) 1.3(17) 3.2(40) 2.7(35) 3.7(47) <0.001 <0.001
  No 98.3(1126) 98.7(1334) 96.8(1205) 97.3(1264) 96.3(1233)   
Current syphilis infection****
  Yes 5.1(59) 6.7(90) 7.9(99) 6.2(81) 8.4(109) 0.01 0.01
  No 94.9(1087) 93.3(1261) 92.1(1158) 93.8(1233) 91.6(1192)   
  1. *The sample in 2011 is slightly different.
  2. **Only among men reporting sex with a female in the past 6 months.
  3. ***95% confidence intervals for HIV point prevalence: 2008 (1.0, 3.0), 2009 (1.0, 2.0), 2010 (2.0, 4.0), 2011 (2.0, 4.0), 2012 (3.0, 5.0).
  4. ****95% confidence intervals for syphilis point prevalence: 2008 (4.0, 6.0), 2009 (5.0, 8.0), 2010 (6.0, 9.0), 2011 (5.0, 7.0), 2012 (7.0, 10.0).
  5. Note: The p values in bold were statistically significant trends which were highlighted to make them convenient to be identified.