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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
| 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 |
