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Table 2 Logistic analysis of commercial sex in the last year (N = 385)

From: Social network correlates of HIV risk-related behaviors among male migrants in China

Characteristic (reference)

Commercial sex in the last year odds ratio (95% confidence interval)

Model 1

Model 2

Model 3

Age

0.97 (0.93–1.00)†

0.96 (0.92–1.01)†

0.95 (0.91–1.00)*

≤ High school (> high school)

3.17 (1.63–6.18)**

3.95 (1.83–8.56)***

4.19 (1.84–9.53)**

≥ 5000 yuan (< 5000 yuan)

1.50 (0.76–2.95)

1.78 (0.80–3.97)

1.65 (0.72–3.82)

Self-employed or else (employed)

0.83 (0.45–1.51)

1.19 (0.59–2.39)

1.25 (0.60–2.60)

Unmarried or else (married)

0.74 (0.32–1.67)

0.76 (0.29–1.99)

0.86 (0.31–2.50)

No steady sex partner (yes)

3.54 (1.46–8.56)**

5.45 (1.91–15.59)**

5.08 (1.71–15.06)**

≥ Yingchou twice per month (< twice per month)

1.45 (0.79–2.65)

1.54 (0.75–3.17)

1.76 (0.78–3.58)

Perceived vulnerability to HIV/STIs

0.95 (0.85–1.07)

0.90 (0.78–1.03)

0.90 (0.77–1.04)

Perceived severity of being infected with HIV/STIs

0.83 (0.64–1.07)

1.00 (0.75–1.34)

1.04 (0.78–1.39)

Perceived necessity & effectiveness of condom use in commercial sex

1.13 (0.93–1.36)

1.05 (0.86–1.28)

1.08 (0.87–1.34)

Perceived social motivations of commercial sex

1.60 (1.45–1.78)***

1.54 (1.36–1.76)***

1.62 (1.40–1.87)***

Size of yingchou network >5 (≤ 5)

 

0.55 (0.27–1.12)†

0.50 (0.24–1.08)†

Density of core yingchou network

 

1.46 (0.52–4.11)

1.19 (0.40–3.54)

Alters having commercial sex ≥1 (0)

 

5.67 (2.75–11.67)***

 

Weighted commercial sex norm of core yingchou network

  

1.03 (1.02–1.04)***

Model G2 (−2 Loglikelihood)

308.96

232.97

208.40

Degrees of freedom

11

14

14

Changed Chi square

 

75.99***

100.56***

  1. †p < .10, *p < .05, **p < .01, ***p < 001