Table 1 Univariate logistic regression

Age group

  15–19

1

1

1

  20–24

6, 43 (247; 16, 70)

5.72 (2.97; 11.00)

4.16 (2.53; 6.85)

  25–29

11, 68 (4.59; 29, 72)

9.73 (5.13; 18.46)

6.32 (3.88; 10.28)

  30–34

15, 44 (6, 06; 39, 30)

13.45 (7.10; 25. 47)

10.50 (6.49; 16.99)

  35–39

23, 64 (9.39; 59, 49)

17.38 (9.18; 32.90)

14.03 (8.71; 22.59)

  40–44

27, 66 (10.91; 70, 15)

19.19 (10.06; 36.61)

16.53 (10.21; 26.76)

  45–49

44, 39 (17.53; 112, 41)

22.03 (11.53; 42.09)

15.71 (9.66; 25.55)

Region of residence

  Adamaoua

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1

  Centre

1.53 (0.94; 2.48)

0.57 (0.38; 0.84)

  Douala

0.48 (0.26; 0.88)

0.49 (0.33; 0.72)

  East

2.08 (1.29; 3.36)

0.69 (0.46; 1.03)

  Far-North

1.51 (0.94; 2.42)

1.20 (0.89; 1.63)

  Littoral

1.37 (0.83; 2.26)

0.61 (0.40; 0.94)

  North

0.39 (0.20; 0.75)

0.87 (0.63; 1.21)

  North-West

0.76 (0.43; 1.34)

0.34 (0.22; 0.51)

  West

1.53 (0.96; 2.45)

0.69 (0.48; 0.99)

  South

0.96 (0.55; 1.68)

0.64 (0.42; 0.96)

  South-West

0.78 (0.44; 1.39)

0.53 (0.35; 0.80)

  Yaoundé

0.78 (0.45; 1.36)

0.52 (0.35; 0.76)

Type of residence

  Urban

1

1

1

  Rural

1.55 (1.20; 2.00)

1.67 (1.36; 2.06)

1.44 (1.23; 1.70)

Level of education

  No education

2.56 (1.82; 3.60)

1.76 (1.33; 2.33)

1.58 (1.27; 1.97)

  Primary

2.22 (1.61; 3.10)

1.82 (1.43; 2,31)

1.45 (1.19; 1.75)

  Don't know

(ommited)

(ommited)

0.94 (0.59; 1.49)

  Secondary /higher

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1

Marital status

  Never married

1

1

1

  Married

14.44 (6.77; 30.77)

13.38 (7.11; 25.19)

16.75 (10.31; 27.23)

  Living together

6.64 (2.77; 15.87)

10.02 (5.14; 19.54)

7.96 (4.70; 13.49)

  others

15.15(6.72; 34.15)

12.91 (6.49; 25.70)

12.59 (7.35; 21.58)

Wealth index quintile

  Very poor

1.66 (1.16; 2.37)

1.30 (0.99; 1.72)

  Poor

1.82 (1.28; 2.58)

1.40 (1.06; 1.84)

  Average

2.28 (1.61; 3.24)

1.87 (1.43; 2.43)

  Rich

2.29 (1.62; 3.25)

2.22 (1.70; 2.91)

  Very rich

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