Factors studied

Girls already sexually active

OR aj

[95% CI]

p-value

Yes

No

The engagement

616

154

21.3 [14.1 - 32.2]

0.0000

Mother already deceased

33

3

2.89 [1.20 - 6.98]

0.0180

Difficulty paying for education

297

132

1.27 [0.97 - 1.66]

0.0861

Education paid for by an older brother/sister

55

11

1.27 [1.39 - 5.20]

0.0034

Self-paid studies

37

2

5.58 [1.95 - 15.48]

0.0013

Wants to have a lot of clothes

363

143

1.66 [1.27 - 2.17]

0.0002

Reside outside of parents: Big brother/sister, aunt/uncle

99

11

5.22 [2.76 - 9.88]

0.0000

Having friends who also indulge in sex life

561

297

0.71 [0.46 - 1.08]

0.1110

Menarche at ≥ 14

385

132

2.19 [1.67 - 2.87]

0.0000

Socio-economic level of parents < average

176

33

3.35 [2.15 - 4.99]

0.0000

Number of meals≤ 2 per day

418

209

1.05 [0.80 - 1.38]

0.7408

Instability of parents’ occupation

231

131

0.83 [0.63 - 1.09]

0.1774

Belonging to no religious or Kimbanguist, New Apostolic, Muslim

77

11

3.90 [2.04 - 7.45]

0.0000

Belonging to a large family of ≥8 size

297

132

1.27 [0.97 - 1.66]

0.0861

Influence of the school environment

484

198

1.96 [1.47 - 2.59]

0.0000