Table 2 Logistic Regression model examining factors associated with prevalent STI at enrollment visit among all AFRICOS participants

 HIV-uninfected

Ref

 HIV-uninfected

1.20

0.85–1.69

 Kayunga, Uganda

15.24

8.15–28.49

16.26

 South Rift Valley, Kenya

2.68

1.40–5.16

3.03

 Kisumu West, Kenya

–

–

 Mbeya, Tanzania

3.81

1.94–7.47

3.70

 Abuja & Lagos Nigeria

4.50

2.21–9.14

5.84

 18–29

2.78

1.68–4.58

2.29

 30–39

2.43

1.50–3.93

2.06

 40–49

1.96

1.19–3.21

1.76

 50+

Ref

–

 Male

Ref

–

 Female

2.80

2.08–3.77

2.64

 Primary or below

1.51

1.16–1.95

1.41

 Secondary or above

Ref

–

 No regular partner

1.60

1.17–2.18

 Used a condom

 Did not use a condom

1.33

0.98–1.80

 No casual partner

1.74

0.98–3.08

 Used a condom

Ref

 Did not use a condom

2.98

1.37–6.48

 No sexual partners

1.27

0.95–1.69

 One sexual partner

Ref

 Two or more sexual partners

1.17

0.81–1.68

 > 16 years at first sex

Ref

 ≤ 16 years at first sex

1.30

1.01–1.66

 No

Ref

 Yes

1.05

0.77–1.42

 No

Ref

 Yes

0.23

0.06–0.93

 No

Ref

–

 Yes

1.88

1.42–2.47

1.78