Characteristics of women

Adjusted HR (CI to 95%)

Marital status

Married

Unmarried

Widower

1

3.46 [0.80 - 14.91]

2.26 [0.87 - 5.88]

Matrimonial regime of women married

Monogamy

Polygamous

1

0.56 [0.37 - 0.85]

Size of the siblings

0.85 [0.78 - 0.93]

Size of the family

1.03 [1.01 - 1.06]

Existence of frequent diseases during childhood

No

Yes

1

1.72 [1.13 - 2.64]

Use of the inta-uterine device (IUD)

No

Yes

1

0.39 [0.24 - 0.63]

Parity (Number of children per woman)

Zero to one

Two to four

Five and more

1

0.43 [0.16 - 1.16]

0.35 [0.13 - 0.92]