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Table 1 Predictors of genital ulcer symptoms among men in the general population

From: Risk factors, healthcare-seeking and sexual behaviour among patients with genital ulcers in Zambia

 

Univariate

Multivariate

    

p-value

Model I

Model II

Model III

Age in years

n

%

OR (CI)

<0.001

OR (CI)

OR (CI)

OR (CI)

15–19

673

2.5

0.9 (0.43, 1.72)

 

1.1 (0.44–2.58)

1.6 (0.59, 4.33)

1.5 (0.61–3.56)

20–24

923

4.2

1.5 (0.82–2.57)

 

1.7 (0.85–3.23)

1.5 (0.74–3.20)

1.9 (0.99–3.67)

25–29

969

6.6

2.3 (1.40–3.93)

 

2.5 (1.43–4.32)

2.5 (1.39–4.51)

2.7 (1.53–4.69)

30–39

1662

3.8

1.3 (0.80–2.19)

 

1.3 (0.80–2.21)

1.3 (0.75–2.19)

1.4 (0.83–2.99)

40–49

862

2.9

Ref

 

Ref

Ref

Ref

Residence

   

0.330

   

Urban

2149

4.6

1.3 (0.86–1.82)

    

Rural

2940

3.7

Ref

    

Marital

   

0.038

   

Never married

1636

3.7

Ref

 

Ref

Ref

Ref

Married / Cohabiting

3777

3.9

1.1 (0.72–1.59)

 

1.2 (0.65–2.14)

0.8 (0.27–2.31)

0.8 (0.49–1.49)

Widowed /Separated / Divorced

276

8.5

2.4 (1.47–4.07)

 

2.6 (1.35–5.02)

2.2 (1.04–4.84)

2.2 (1.13–4.20)

Wealth index

   

0.176

   

Poorest / Poorer

1705

3.6

Ref

 

Ref

Ref

 

Middle

1048

3.4

0.9 (0.60–1.50)

 

0.9 (0.58–1.45)

0.9 (0.56–1.45)

 

Richer / Richest

2338

4.7

1.3 (0.901.94)

 

1.3 (0.85–1.89)

1.2 (0.78–1.79)

 

Education

   

0.304

   

No education

246

4.6

Ref

    

Primary

2331

4.4

0.9 (0.49–1.82)

    

Secondary/ Tertiary

2512

3.8

0.8 (0.41–1.60)

    

Recent sexual activity

       

Active last 4 weeks

3135

4.7

1.6 (1.07–2.29)

0.010

 

1.5 (0.944–2.36)

1.7 (1.07–2.61)

Not active last 4 weeks

1948

3.1

Ref

  

Ref

Ref

Used condom last sex

   

0.043

   

No

3375

4.1

Ref

  

Ref

 

Yes

1066

5.5

1.4 (0.92–2.01)

  

0.9 (0.60–1.36)

 

Relationship with last partner

   

0.015

   

Spouse/Live-in partner

3107

4.0

Ref

  

Ref

 

Casual acquaintance /Girl friend

1301

5.5

1.4 (1.01–1.95)

  

0.9 (0.38–2.26)

 

Age at first sex (in years)

   

0.065

   

<16

1923

4.9

1.3 (0.95–1.77)

  

1.0 (0.63–1.55)

 

16–19

2094

3.8

1.1 (0.81–1.52)

  

0.8 (0.48–1.27)

 

>19

1072

3.3

Ref

  

Ref

 

Life-time sex partners

   

<0.001

   

1

771

1.0

Ref

  

Ref

Ref

2–4

2223

3.2

3.2 (1.34–7.73)

  

3.5 (1.22–9.87)

3.0 (1.27–7.08)

5–10

1452

6.2

6.3 (2.68–14.94)

  

6.4 (2.32–17.94)

5.7 (2.39–13.33)

11 and above

636

6.8

7.0 (2.85–17.52)

  

7.2 (2.40–21.40)

6.1 (2.42–15.28)

Circumcised (men only)

   

0.966

   

No

4212

4.0

0.83 (0.56–1.22)

    

Yes

876

4.8

Ref

    
  1. Model 1 Underlying variables with p  < 0.2 in the univariate analyses.
  2. Model 2 Underlying + proximate determinants with p  < 0.2 in the univariate analyses.
  3. Model 3 variables with p  < 0.1 in model II.