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Table 2 Univariate association between circumcision, other risk factors, and STI presence

From: A comparison of the prevalence of sexually transmitted infections among circumcised and uncircumcised adult males in Rustenburg, South Africa: a cross-sectional study

Factor

Levels

STI Presence

Crude RR (95% CI)

P-value

Present (n = 93)

Absent (n = 246)

Circumcision

No

75 (33.6%)

148 (66.4%)

1 (reference)

 

Medically circumcised

14 (17.7%)

65 (82.3%)

0.527 (0.317–0.877)

0.014

Traditionally circumcised

4 (10.8%)

33 (89.2%)

0.321 (0.125–0.826)

0.018

Employment

Unemployed

35 (21.1%)

131 (78.9%)

1 (reference)

 

Self employed

8 (34.8%)

15 (65.2%)

1.650 (0.877–3.105)

0.121

Student

5 (19.2%)

21 (80.8%)

0.912 (0.393–2.115)

0.830

Employed

44 (36.1%)

78 (63.9%)

1.711 (1.173–2.495)

0.005

Other

1 (50.0%)

1 (50.0%)

2.371 (0.575–9.780)

0.232

Does your partner live with you?

No

66 (25.5%)

193 (74.5%)

1 (reference)

 

Yes

20 (36.4%)

35 (63.6%)

1.824 (0.451–7.376)

0.399

Not applicable/no partner

7 (28.0%)

18 (72.0%)

1.099 (0.567–2.131)

0.780

During the last month, on average, how often have you had a drink Containing alcohol?

none

23 (25%)

69 (75%)

1(reference)

 

1–3 times

39 (27.5%)

103 (72.5%)

1.099 (0.705–1.712)

0.678

Weekly

27 (28.4%)

68 (71.6%)

1.137 (0.706–1.831)

0.598

Daily

4 (40%)

6 (60%)

1.6 (0.692–3.697)

0.271

During the last month, how often were you drunk/drinking alcohol before sex?

never

128 (27.7%)

49 (72.3%)

1 (reference)

 

sometimes

91 (28.3%)

36 (71.7%)

1.024 (0.711–1.475)

0.899

frequently

18 (18.2%)

4 (81.8%)

0.657 (0.262–1.644)

0.369

always

9 (30.8%)

4 (69.2%)

1.111 (0.475–2.599)

0.807

Frequency of use of condom with female partner(s)

Never

18 (38.3%)

29 (61.7%)

1 (reference)

 

Sometimes

43 (32.6%)

89 (67.4%)

0.851 (0.549–1.318)

0.469

Frequently

16 (22.2%)

56 (77.8%)

0.580 (0.330–1.020)

0.059

Always

13 (15.3%)

72 (84.7%)

0.399 (0.215–0.741)

0.004

Enrolment Age in years: median (IQR)

26 (23–30)

25 (22–28)

1.021 (0.993–1.050)

0.144

Age group

20–23

39 (25.5%)

114 (74.5%)

1 (reference)

 

24–29

27 (24.8%)

82 (75.2%)

0.972 (0.635–1.486)

0.895

30–34

16 (40%)

24 (60%)

1.569 (0.984–2.501)

0.058

35–39

7 (26.9%)

19 (73.1%)

1.056 (0.530–2.103)

0.876

> = 40

4 (36.4%)

7 (63.6%)

1.427 (0.624–3.263)

0.400

Age of sexual debut, in years: median (IQR)

17 (16–18)

17 (15–18)

0.983 (0.933–1.035)

0.514

Years of schooling: median (IQR)

12 (11–13)

12 (11–14)

1.069 (0.974–1.173)

0.157