demographic and economic characteristics of women (n = 1266)

Low birth weight

OR [95%]

p

Yes

no

Age of mothers

≤20 years

63 (20.4%)

246 (79.6%)

1.7 [1.27 to 2.50]

0.001

≥21 years old

120 (12.5%)

837 (87.5%)

Civil status

unmarried

25 (25.3%)

74 (74.7%)

2.16 [1.33 to 3.50]

0.001

Married

158 (13.5%)

1009 (86.5%)

Level of education

Low level

62 (22.1%)

218 (77.9%)

2.03 [1.44 to 2.85]

0.000

Superior

121 (12.3%)

865 (87.7%)

tribal origin

not Luba

65 (24.9%

196 (75.1%)

2.49 [1.77 to 3.50]

0.000

Luba

118 (11.7%)

887 (88.3%)

Activity performed during pregnancy

heavy work

148 (14.8%)

854 (85.2%)

1.13 [0.76 to 1.68]

0.534

light work

35 (13.3%)

229 (86.7%)

Number of people in the household

Less than 6 people

97 (15.5%)

527 (84.5%)

1.19 [0.86 to 1.62]

0.277

More than 6 people

86 (13.4%)

556 (86.6%)