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Table 3 Changes in syphilis prevalence with different demographic characteristics among men who have sex with men in Guangxi, 2008-2012

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 3.3(16/492) 5.2(27/517) 4.8(22/461) 5.1(19/376) 4.9(28/575) 0.60 0.33
  >25 6.6(43/654) 7.6(63/834) 9.7(77/796) 6.6(62/938) 11.2(81/726) 0.002 0.02
Current marital status
  Never married 5.2(42/813) 6.8(65/954) 6.9(61/879) 5.7(39/686) 6.7(68/1013) 0.48 0.44
  Other 5.1(17/333) 6.3(25/397) 10.1(38/377) 6.7(42/627) 14.2(41/288) <0.001 0.001
Registered Guangxi resident
  Yes 4.9(47/957) 6.9(81/1181) 7.0(77/1095) 5.9(70/1183) 8.2(94/1142) 0.03 0.02
  No 6.3(12/189) 5.3(9/170) 13.7(22/161) 8.5(11/129) 9.4(15/159) 0.06 0.15
Education
  Junior high school or lower 4.0(11/278) 7.3(29/398) 8.0(27/339) 8.5(18/211) 10.0(26/260) 0.10 0.01
  Senior high school 4.7(20/422) 6.2(31/499) 8.9(43/485) 6.3(37/586) 9.2(45/489) 0.04 0.02
  College or higher 6.3(28/446) 6.6(30/454) 6.7(29/433) 5.0(26/517) 6.9(38/552) 0.75 0.94
Had sex with male in the past 6 months
  Yes 5.6(49/876) 6.7(74/1109) 8.4(76/906) 6.3(69/1094) 8.1(71/873) 0.09 0.10
  No 4.0(10/248) 6.0(14/234) 6.7(23/341) 5.5(12/220) 8.9(38/426) 0.14 0.02
Used condom in the last male-male sex
  Yes 6.5(33/504) 7.3(53/731) 9.1(60/660) 6.2(54/874) 8.4(56/667) 0.19 0.56
  No 4.4(16/364) 5.6(21/375) 7.0(16/227) 7.0(15/214) 7.0(14/201) 0.57 0.12
Used condom with male in the past 6 months
  Yes 5.9(43/734) 7.2(73/1011) 9.2(74/808) 6.2(65/1045) 8.2(67/820) 0.06 0.29
  No 4.4(6/136) 0(0/96) 2.5(2/81) 6.4(3/47) 8.5(4/47) 0.08 0.15
Had sex with female in the past 6 months
  Yes 2.4(6/250) 3.0(9/302) 6.8(18/263) 6.7(25/372) 11.6(22/190) <0.001 <0.001
  No 6.0(53/885) 7.6(80/1046) 8.2(81/983) 5.9(56/942) 7.8(87/1110) 0.15 0.46
Received peer education in the past year
  Yes 7.4(38/516) 7.3(60/823) 8.0(67/836) 6.1(49/804) 8.1(56/694) 0.60 0.99
  No 3.3(21/629) 5.7(30/528) 7.6(32/419) 6.3(32/506) 8.7(53/607) 0.002 <0.001
Tested for HIV in the past year
  Yes 7.4(26/353) 7.5(54/716) 8.0(63/788) 6.7(55/826) 8.6(61/707) 0.68 0.67
  No 4.2(33/793) 5.7(36/635) 7.7(36/468) 5.4(26/485) 8.1(48/594) 0.02 0.006
  1. *The sample in 2011 is slightly different.
  2. Note: The p values in bold were statistically significant trends which were highlighted to make them convenient to be identified.