Table 2 Factors in a multivariate analysis that were associated with sexual intercourse in past 12 months among in-school adolescents in Zambia

Age

<15

1

15

1.06 (1.03–1.10)

16+

1.74 (1.70–1.79)

Sex

Male

1

Female

0.66 (0.64–0.67)

Number of close friends

0

1

1

1.28 (1.24–1.32)

2 +

0.98 (0.95–1.01)

Parental supervision

Never

1

Rarely or sometimes

1.26 (1.23–1.29)

Most of the times or always

0.92 (0.90–0.95)

Days drank alcohol past 30 days

0

1

1 or 2

1.12 (1.08–1.15)

3+

1.09 (1.06–1.14)

Number of time ever used marijuana

0

1

1 or 2

1.70 (1.65–1.75)

3+

1.25 (1.20–1.29)

Number of times ever been drunk

0

1

1 or 2

1.14 (1.11–1.18)

3+

1.13 (1.09–1.18)