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Table 1 Characteristics of the study participants (n = 533)

From: Prevalence of HIV and syphilis co-infection and associated factors among non-commercial men who have sex with men attending a sexually transmitted disease clinic in Shenzhen, China

Variable

Category

Number

Percent (%)

Age (year)

 

<25

93

17.4

≥25

440

82.6

Ethnicity

 

Han

499

93.6

Other minorities

34

6.4

Marital status

 

Married

129

24.2

Unmarried

404

75.8

Educational level

 

≤Junior middle school

160

30.0

>Junior middle school

373

70.0

Socioeconomic Disconnection

 

Yes

52

9.8

No

481

90.2

Monthly income (RMB)

 

≤3000

211

39.6

3001-5000

183

34.3

>5000

139

26.1

Length of stay in Shenzhen (year)

 

>2

183

34.3

1-2

73

13.7

<1

277

52.0

Having vaginal sexual intercourse

 

Yes

354

66.4

No

179

33.6

Age at first anal sexual intercourse (year)

 

≥18

439

82.4

<18

94

17.6

Having a fixed homosexual partner

 

Yes

368

69.0

No

165

31.0

Number of anal sexual partners in the past 6 months

 

≤2

217

40.7

3-5

150

28.1

>5

166

31.2

Roles in anal sexual intercoursea

 

Insertive

212

41.1

Receptive

123

23.8

Both

181

35.1

Always using condom in anal sexual intercourse in the past 6 monthsa

 

Yes

214

42.5

No

289

57.5

HIV-related knowledge

 

<6

378

70.9

≥6

155

29.1

  1. aData may not add up to 533 because of missing data