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Table 4 Multivariable logistic regression analysis of factors associated with regular-tobacco smoking behaviour in the past year among adolescent female sex workers (N = 310)

From: Sexual and reproductive health correlates of polysubstance use among female adolescents who sell sex in the southwest of China

Factors

Regular-tobacco smoking

n/N (%)

Crude OR

(95% CI)

p-value

Adjusted ORa

(95% CI)

p-value

Duration in sex work

 ≤ half year

74/191(39)

1.0

   

 > half year

62/119(52)

1.71(1.07–2.75)

0.021

  

Average monthly income from sex work

 ≤ 360 EUR (low level)

29/95 (31)

1.0

   

 > 360 EUR (Middle level to high level)

107/213(50)

3.81(2.02–7.19)

< 0.001

  

Age at sex debut

 18–19 years

25/82(31)

1.0

   

 12–15 years

87/175(50)

2.25(1.28–3.97)

0.040

  

 16–17 years

24/53(46)

    

Had any intimate male partner with illicit drug use

 No

99/251(39)

1.0

   

 Yes

37/59(63)

2.58(1.42–4.69)

0.001

  

Had sex without a condom while drunk (PM)

 No

78/213(37)

1.0

 

1.0

 

 Yes

58/97(60)

2.57(1.55–4.27)

< 0.001

1.81(1.04–3.15)

0.035

Experienced sexual and gender-based violence (PY)

 No

69/192(36)

1.0

   

 Yes

67/118(57)

6.05(2.42–15.11)

< 0.001

  

Inconsistent condom use with any male partners (PM)

 No

30/86(35)

1.0

   

 Yes

106/224(47)

1.68(1.00–2.82)

0.049

  

Utilization of health service for any STIs treatment!!

 Safe medical care

73/193(38)

1.0

   

 Unsafe medical care

61/105(58)

2.28(1.39–3.74)

< 0.001

  

Prior abortion

 No

66/174 (38)

1.0

   

 Yes

70/136(51)

1.73(1.09–2.75)

0.017

  

Any self-reported symptom of STIs (PY)

 No

24/105(23)

1.0

 

1.0

 

 Yes

112/205(55)

4.06(2.32–7.11)

< 0.001

2.79(1.55–5.01)

0.001

Illicit drug use

 No

113/283(40)

1.0

 

1.0

 

 Yes

23/27(85)

8.65(2.80–26.72)

< 0.001

6.84(2.00–23.36)

0.002

Alcohol use

 Abstainer occasional drinking

1/53(2)

1.0

 

1.0

 

 Regular drinking

135/257(53)

57.54(6.62–500.48)

< 0.001

40.35(5.43–299.76)

< 0.001

  1. In the final logistic regression model: Pseudo R2 = 0.23; P < 0.001; Akaike information criterion =339.33
  2. CI confidence interval, OR odds ratio in the bivariate logistic regression model
  3. aAdjusted odds ratio in the final logistic regression model
  4. !!Twelve responses were missing in the question of STI treatment