Table 4 Multivariate analysis of migrant workers who had sexual behavior with casual extramarital partner within the past year by gender

Age, y

 18–34

153

1058

0.73

1

217

822

0.07

1

 35–65

72

970

0.94(0.64–1.37)

281

1115

0.81(0.64–1.02)

Marital status

 Married

141

1820

0.04

1

364

1632

<0.01

1

 Unmarried

84

208

0.57(0.33–0.99)

134

305

0.51(0.36–0.74)

Education

 Primary school or below

49

543

0.01

1

160

659

0.11

1

 Junior high school

121

1051

2.13(1.29–3.53)

271

978

0.91(0.65–1.27)

 High school or above

54

435

1.37(0.91–2.05)

67

300

0.79(0.62–0.99)

Occupation

 Manufacture

67

863

<0.01

1

273

937

0.05

1

 Construction

7

73

1.10(0.46–2.63)

110

500

1.40(1.05–1.87)

 Accommodation/catering

10

160

1.49(0.74–3.00)

28

97

1.16(0.74–1.82)

 Domestic service

21

384

1.89(1.09–3.28)

20

109

1.66(1.01–2.75)

 Wholesale/retail

18

348

1.48(0.85–2.59)

33

180

1.53(1.02–2.29)

 Entertainment

102

200

0.27(0.17–0.41)

34

114

1.31(0.85–2.01)

Monthly income (RMB:yuan)

  < 2500

113

1405

0.38

1

211

792

0.97

1

  ≥ 2500

112

623

0.86(0.61–1.21)

287

1145

1.00(0.82–1.24)

Housing

 Dormitory

40

317

0.03

1

177

662

0.30

1

 Renting with friends

82

1229

1.67(1.06–2.65)

150

703

1.26(0.94–1.68)

 Renting with family

60

165

0.84(0.50–1.42)

58

197

1.04(0.73–1.48)

 Renting alone

35

207

1.26(0.73–2.19)

94

284

0.91(0.67–1.25)

 Self-buying

8

110

1.02(0.43–2.40)

19

91

1.27(0.73–2.22)

Children (yes/no)

 Yes, but not in Shanghai

72

821

0.38

1

200

855

0.93

1

 Yes, in Shanghai

58

900

1.10(0.75–1.62)

158

707

1.10(0.75–1.62)

 No children

95

307

0.73(0.43–1.24)

140

375

0.93(0.64–1.36)