Skip to main content

Table 4 Multivariate analysis on the association between risk characteristics and grade, divided by gender

From: Sexual behavior and awareness of Chinese university students in transition with implied risk of sexually transmitted diseases and HIV infection: A cross-sectional study

Risk characteristics

Male

Female

 

Grade I

Grade II

Grade III

Grade IV

Pvalue*

Grade I

Grade II

Grade III

Grade IV

Pvalue*

 

Odds ratios (95% CI)†

 

Odds ratios (95% CI)†

 

Having first sex before university (referred to never or having first sex at university)

2.08 (1.43–3.02)

1.79 (1.23–2.59)

1.89 (1.31–2.75)

1

< 0.001

7.73 (2.80–21.33)

4.52 (1.63–12.58)

4.82 (1.73–13.44)

1

< 0.001

Ever had sex with a casual and/or commercial sex partner in previous year‡ (referred to having had only regular partner)

1.89 (1.03–3.47)

1.76 (1.01–3.10)

1.33 (0.78–2.29)

1

0.02

2.37 (0.40–14.04)

2.20 (0.42–11.68)

1.89 (0.36–9.92)

1

0.33

Having had ≥2 sexual partners in previous year‡ (referred to having had only one partner)

2.08 (1.16–3.72)

1.86 (1.08–3.20)

1.60 (0.96–2.68)

1

0.01

0.56 (0.22–1.42)

0.77 (0.36–1.68)

0.72 (0.34–1.50)

1

0.26

Never or rarely used condom in previous year‡ (referred to sometimes/often/always used)

1.87 (1.20–2.90)

1.39 (0.93–2.08)

1.14 (0.78–1.66)

1

0.003

1.98 (1.04–3.78)

1.43 (0.82–2.51)

1.12 (0.66–1.89)

1

0.03

Became aware of sex before high school (referred to becoming aware of sex in high school/at university)

1.66 (1.45–1.91)

1.27 (1.11–1.46)

0.98 (0.86–1.13)

1

< 0.001

2.11 (1.82–2.45)

1.37 (1.18–1.59)

1.19 (1.03–1.39)

1

< 0.001

Being exposed to pornographic media ≤16 year-old¶ (referred to never or being exposed ≥ 17 year-old)

1.66 (1.43–1.93)

1.12 (0.96–1.30)

1.02 (0.88–1.19)

1

< 0.001

3.24 (2.33–4.51)

2.09 (1.49–2.92)

1.69 (1.20–2.38)

1

< 0.001

Being exposed to pornographic website ≤16 year-old (referred to never or being exposed ≥ 17 year-old)

6.09 (3.94–9.41)

3.29 (2.12–5.13)

1.44 (0.90–2.30)

1

< 0.001

3.66 (1.07–12.58)

2.16 (0.61–7.58)

0.59 (0.13–2.66)

1

< 0.01

Disapproved high school students' sex (referred to approved or did not know)

0.93 (0.80–1.08)

0.91 (0.78–1.06)

0.84 (0.72–0.98)

1

0.09

0.86 (0.69–1.06)

1.06 (0.86–1.32)

0.96 (0.78–1.20)

1

0.27

  1. * P value is calculated using linear contrast statistics.
  2. † Odds ratio with 95% confidence interval in parentheses is adjusted for university, faculty, residential area, and family's economic status.
  3. ‡ Among students sexually active in the previous year.
  4. ¶ Including pornographic novel, magazine, and/or video.