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Table 2 Association of sociodemographic factors, clinical parameters and sexual behaviour with syphilis infection among 1223 drug addicts

From: Prevalence and risk factors of syphilis infection among drug addicts

 

Syphilis infection (positive for TPHA)

 

OR*

95%CI

p-value

Gender

   

Male

1

[reference group]

<0.00

Female

4.56

[2.37–8.78]

 

Age groups

   

below 21 y

1

[reference group]

 

21–30 y

0.59

[0.19–1.85]

0.363

31–40 y

0.59

[0.18–1.94]

0.383

over 40 y

1.94

[0.56–6.71]

0.295

Illicit drug abuse

   

no or <2 y

1

[reference group]

 

2 to 4 y

0.89

[0.23–3.53]

0.872

5–7 y

1.88

[0.52–6.79]

0.334

>7 y

0.96

[0.32–2.92]

0.945

Migration background

   

native German

1

[reference group]

 

Migrants

1.51

[0.63–3.62]

0.36

Stable partnership

   

> 5 years

1

[reference group]

 

1 to 5 years

1.17

[0.46–2.97]

0.94

<1 year

1.04

[0.35–3.16]

0.74

Number of sexual partners in the last 5 years

   

0–1

1

[reference group]

 

2–5

1.71

[0.57–5.17]

0.34

6–20

0.69

[0.13–3.67]

0.67

> 20

5.85

[2.07–16.5]

0.00

Sex for drugs/money

   

never

1

[reference group]

 

frequent

8.81

[3.66–21.19]

0.00

Sex on the first day of meeting a partner

   

never

1

[reference group]

 

seldom

1.31

[0.44–3.9]

0.63

frequent

4.98

[2.22–11.19]

0.00

  1. OR denotes Odds ratio; CI denotes confidence interval; *adjusted for sex and age (where appropriate)