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Table 2 Bivariate and multivariate analysis of unplanned sex among men who have sex with men in Bangkok, Thailand, 2009

From: Sex frequency and sex planning among men who have sex with men in Bangkok, Thailand: implications for pre- and post-exposure prophylaxis against HIV infection

       

Bivariate

  

Multivariate

 

Demographics

Total

%

Unplan-ned sex

%

OR

95% CI

p

OR

95% CI

p

Total

818

100

284

34.7

      

Age group (years)

          

18-21

70

8.6

32

45.7

2.41

1.40-4.14

0.002

1.71

0.89-3.28

0.11

22-29

470

57.5

180

38.3

1.78

1.28-2.46

0.001

1.67

1.12-2.48

0.01

≥30

278

34.0

72

25.9

1

  

1

  

Employment

          

Yes

621

75.9

203

32.7

1

     

No

197

24.1

81

41.1

1.44

1.03-1.99

0.04

 

-†

 

Education

          

Less than high school

56

6.8

31

55.4

3.13

1.77-5.52

<0.001

2.97

1.51-5.83

0.002

High school or equivalent

350

42.8

136

38.9

1.60

1.18-2.17

0.002

1.36

0.93-1.98

0.11

University and above

412

50.4

117

28.4

1

     

Current living situation

          

Live with parents/relatives

334

40.8

107

32.0

1

     

Live with partner

103

12.6

39

37.9

1.29

0.82-2.05

0.33

   

Live alone/friend/other

381

46.6

138

36.2

1.20

0.88-1.64

0.27

   

Use of alcohol

(past 4 m)

          

Yes

657

80.3

239

36.4

1.47

1.01-2.15

0.06

   

No

161

19.7

45

28.0

1

     

Binge drinking

(past 4 m)*(n = 657)

          

Yes

76

11.6

36

47.4

1.68

1.03-2.71

0.046

1.67

0.99-2.81

0.054

No

581

88.4

203

34.9

1

  

1

  

Use of any drugs

(past 4 m)

          

Yes

73

8.9

28

38.4

1.19

0.72-1.95

0.58

   

No

745

91.1

256

34.4

1

     

Inhaled nitrates (poppers) (past 4 m)

          

Yes

34

4.2

8

23.5

1

     

No

784

95.8

276

35.2

1.77

0.79-3.95

0.22

   

Used club drugs ‡ (past 4 m)

          

Yes

58

7.1

24

41.4

1.36

0.79-2.34

0.34

   

No

760

92.9

260

34.2

1

     

Used erectile dysfunction drugs (ever)

          

Yes

43

5.3

12

27.9

1

     

No

775

94.7

272

35.1

1.40

0.71-2.76

0.42

   

Sexual self-identification (baseline)

          

Homosexual

648

79.2

213

32.9

1

  

1

  

Heterosexual/bisexual/transgender

170

20.8

71

41.8

1.46

1.04-2.07

0.04

1.58

1.04-2.38

0.03

Age at first anal sex (n = 807)

          

≤ 15

114

14.1

51

44.7

1.63

1.09-2.43

0.02

 

-†

 

> 15

693

85.9

230

33.2

1

     

Had steady male partner (past 4 m)

          

Yes

561

68.6

196

34.9

1.03

0.76-1.41

0.91

   

No

257

31.4

88

34.2

1

     

Had casual male partner (past 4 m)

          

Yes

565

69.1

191

33.8

0.88

0.65-1.20

0.46

   

No

253

30.9

93

36.8

1

     

Usual anal sex position with male (those who had anal sex) (n = 807)

          

Insertive

306

37.9

87

28.4

1

  

1

  

Receptive/both

501

62.1

194

38.7

1.59

1.17-2.16

0.004

1.67

1.16-2.40

0.006

Condom use with steady/casual male partners (past 4 m) (n = 768)

          

Always

433

56.4

140

32.3

1

     

Not always

335

43.6

127

37.9

1.28

0.95-1.72

0.12

   

Frequency of sex

          

Every day/several times per week

155

18.9

45

29.0

1

     

Once a week/several times per month

271

33.1

84

31.0

1.10

0.71-1.69

0.75

 

-†

 

Once a month or less

392

47.9

155

39.5

1.60

1.07-2.39

0.03

   

Group sex (ever)

          

Yes

137

16.7

34

24.8

1

  

1

  

No

681

83.3

250

36.7

1.76

1.16-2.67

0.01

1.84

1.17-2.91

0.009

Sex with foreigner

(past 4 m)

          

Yes

115

14.1

35

30.4

1

     

No

703

85.9

249

35.4

1.25

0.82-1.92

0.35

   

Coerced into sex (ever)

          

Yes

114

17.6

60

41.7

1.43

0.99-2.07

0.07

   

No

674

82.4

224

33.2

1

     

Paid male partner for sex (past 4 m)

          

Yes

96

11.7

33

34.4

1

     

No

722

88.3

251

34.8

1.02

0.65-1.59

1.00

   

Condom use with male partner you paid

(past 4 m) (n = 96)

          

Always

68

70.8

22

32.4

1

     

Not always

28

29.2

11

39.3

1.35

0.54-3.37

0.68

   

Got paid for sex by male partner (past 4 m)

          

Yes

96

11.7

36

37.5

1.15

0.74-1.78

0.62

   

No

722

88.3

248

34.3

1

     

Condom use with male partner who paid you (past 4 m) (n = 96)

          

Always

76

79.2

27

35.5

1

     

Not always

20

20.8

9

45.5

1.48

0.55-4.03

0.60

   

Suicidal ideation § (ever)

          

Yes

212

25.9

84

39.6

1.33

0.96-1.84

0.10

   

No

606

74.1

200

33.0

1

     

HIV testing (ever)

          

Yes

425

52.0

140

32.9

1

     

No

393

48.0

144

36.9

1.18

0.88-1.57

0.30

   

Worried about getting HIV infection

          

Never to regularly

583

71.3

205

35.2

1.07

0.78-1.47

0.73

   

Often to always

235

28.7

79

33.6

1

     

Worried about getting STI

          

Never to regularly

605

74.0

211

34.9

1.03

0.74-1.43

0.94

   

Often to always

213

26.0

73

34.3

1

     

Increase sexual risk behaviour after hearing about effective treatment for HIV infection

          

Not at all to moderate

641

78.4

214

33.4

1

     

Much to a great deal

177

21.6

70

39.5

1.30

0.93-1.84

0.15

   
  1. *Got drunk 2-3 times per week or more in the past four months among those who used alcohol
  2. †Dropped out of the multivariate model
  3. ‡Club drugs = marijuana, ecstasy, methamphetamine, ketamine, cocaine, and gamma hydroxy butyrate (GHB)
  4. §Ever had seriously thought about or attempted suicide
  5. M: month: STI: sexually transmitted infection