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Table 2 Factors associated with unprotected anal intercourse among MSM in Guangzhou, 2008–2013, by Logistic regression model a

From: Consistently High Unprotected Anal Intercourse (UAI) and factors correlated with UAI among men who have sex with men: implication of a serial cross-sectional study in Guangzhou, China

Factor

UAI b% (n)

COR (95% CI) c

AOR (95% CI) d

Age (years)

   

  <20

73.7 (56)

2.75 (1.55-4.88)f

2.22 (1.07-4.61)e

  20-29

59.0 (916)

1.42 (1.07-1.87)e

1.30 (0.87-1.93)

  30-39

57.8 (432)

1.35 (1.00-1.81)

1.17 (0.81-1.67)

  ≥40

50.4 (115)

1.00

1.00

Ethnicity

   

  Han

58.5 (1461)

1

-

  Others

54.7 (58)

0.86 (0.58-1.27)

 

Hukou (registered permanent residence)

   

  Guangzhou

56.7 (472)

1

-

  Other city in Guangdong province

58.4 (354)

1.07 (0.87-1.33)

 

  Outside Guangdong province

59.5 (693)

1.13 (0.94-1.35)

 

Education level

   

  Junior high school or lower

63.4 (204)

1.35 (1.06-1.73)e

1.41 (1.04-1.90)e

  Senior high school

61.2 (415)

1.23 (1.03-1.48)e

1.23 (0.99-1.51)

  College or higher

56.1 (900)

1.00

1.00

Marital status

   

  Single

54.7 (903)

1.00

1.00

  Cohabiting with male partner

72.0 (296)

2.13 (1.68-2.70)f

2.15 (1.66-2.79)f

  Married

56.8 (259)

1.08 (0.88-1.34)

1.28 (0.96-1.71)

  Divorced or widowed

70.9 (61)

2.02 (1.26-3.25)f

2.80 (1.54-5.07)f

Monthly income (CNY)

   

  0

60.4 (198)

1

-

  ≤2000

62.5 (282)

1.10 (0.82-1.47)

 

  2001-3000

57.3 (322)

0.88 (0.67-1.16)

 

  3001-4000

57.3 (263)

0.88 (0.66-1.16)

 

  >4000

56.5 (454)

0.85 (0.66-1.11)

 

Self-perceived sexual orientation

   

  Homosexual

59.5 (1012)

1

-

  Bisexual

57.0 (470)

0.90 (0.76-1.08)

 

  Uncertain

53.0 (97)

0.77 (0.57-1.04)

 

Venues for meeting partners

   

  Bar, disco, tea house or club

60.6 (94)

1

-

  Bath house, sauna or massage

61.0 (47)

1.02 (.058-1.780

 

  Park, public toilet

55.4 (96)

0.81 (0.52-1.27)

 

  Internet

58.5 (1155)

0.92 (0.66-1.28)

 

  Other

56.3 (129)

0.84 (0.55-1.27)

 

Age of first sex with male (years)

   

  <19

63.8 (298)

1.00

1.00

  19-24

58.7 (756)

0.80 (0.65-1.00)

0.93 (0.73-1.20)

  ≥25

55.0 (465)

0.69 (0.55-0.87)f

0.78 (0.58-1.05)

HIV test in the past 12 months

   

  Yes

55.3 (679)

1.00

1.00

  no

61.1 (834)

1.28 (1.08-1.48)f

1.36 (1.12-1.65)f

UVIb

   

  Yes

61.9 (208)

1.16 (0.94-1.50)

 

  No

57.8 (1311)

1

-

Coverage of HIV intervention

   

  Yes

57.0 (1186)

1.00

1.00

  no

63.8 (333)

1.33 (1.09-1.62)f

1.21 (0.94-1.56)

Number of male partners in the past 6 months

  

  1

59.3 (463)

1.00

1.00

  2

63.3 (394)

1.18 (0.96-1.47)

1.27 (1.02-1.59)e

  3

67.4 (302)

1.42 (1.11-1.81)f

1.49 (1.16-1.92)f

  4-9

71.6 (272)

1.73 (1.33-2.25)f

1.77 (1.35-2.33)f

  ≥10

73.5 (86)

1.91 (1.23-2.94)f

1.85 (1.18-2.91)f

  1. aOnly factors significant in univariate analysis were included in the multivariate logistic regression model.
  2. bUnprotected anal intercourse.
  3. cUnivariate logistic regression analysis; dMultivariate logistic regression analysis.
  4. e P < 0.05; f P < 0.01.
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BMC Infectious Diseases

ISSN: 1471-2334

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