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Table 5 Predictors of multiple sex partner behavior in female undergraduate students (n = 863)

From: Multiple sex partner behavior in female undergraduate students in China: A multi-campus survey

Demographic Variables

    

Explanatory variables

Empty Model

Model 1 Demos

OR (95% CI)

Model 2 Demos + influ

OR (95% CI)

Model 3 All factors

OR (95% CI)

Home locationa

    

   Eastern coastal regions

 

1.00

1.00

1.00

   Central areas

 

0.70(0.42–1.40)

0.68(0.41–1.13)

0.77(0.45–1.31)

   Western areas

 

0.62(0.31–1.22)

0.58(0.29–1.16)

0.54(0.26–1.12)

Parents' economic status

    

   Poor

 

1.00

1.00

1.00

   Average

 

1.44(0.92–2.24)

1.36(0.86–2.14)

1.08(0.66–1.77)

   Rich

 

2.27(1.36–3.79)f

1.92(1.13–3.26)e

1.44(0.81–2.57)

Family, peer, and work influences

    

Only one child(yes)b

  

1.07(0.76–1.51)

1.11(0.76–1.60)

Parents divorced(yes)b

  

1.65(0.99–2.73)

1.36(0.80–2.33)

Middle-school close classmates and friends disapproving of premarital sex (yes)b

  

0.87(0.62–1.21)

0.94(0.66–1.32)

Middle-school close friends falling in love (yes)b

  

1.27(0.91–1.78)

1.20(0.84–1.72)

Current close friends living with boyfriend (yes) b

  

1.98(1.38–2.83)f

1.58(1.07–2.32)e

Work at place of entertainment (yes)b

  

2.21(1.45–3.38)f

2.04(1.30–3.20)f

Current student factors

    

Majora

    

   Literature and history

   

1.00

   Science and technology

   

0.76(0.42–1.36)

   Medical science

   

1.52(0.70–3.30)

   Art

   

1.99(0.72–5.49)

Year in school (continuous)

   

1.04(0.85–1.28)

Academic performancea

    

   Excellent

   

1.00

   Medium

   

1.42(0.94–2.15)

   Poor

   

2.91(1.59–5.33)f

Feelings anxious in college(yes)b

   

1.16(1.00–1.36)

Score in sex-related knowledge (continuous)

   

1.02(1.00–1.04)

Approve/accept premarital sex (yes)

   

2.46(0.96–6.33)

Approve/accept multiple sex partners (yes)b

   

2.59(1.73–3.88)f

Between university variance(SE c )

0.264(0.157)

0.227(0.144)

0.118(0.095)

0.257(0.162)

Explained variance d (%)

 

14.02

55.30

2.65

  1. a The first category was used as reference group. bDichotomous variables with 0 (condition absent) as reference group. cStandard error. d Explained 'between school' variance using the variance in the empty model as reference. e p < 0.05 f p < 0.01