Table 1.

Description of maternal characteristics and type of insurance scheme according to the absence of postnatal visit.

Variables	n	Absence of postnatal visit %	pa
Family income (quintiles)			< 0.001b
1st (poorest)	691	35.2
2nd	697	30.3
3rd	682	24.1
4th	727	16.9
5th (better-off)	700	9
Maternal skin colour			< 0.001
Black/mixed	1272	30.2
White	2151	18.5
Maternal schooling (y)			< 0.001b
0-4	533	38.5
5-8	1399	30
≥ 9	1534	11.6
Marital status			< 0.001
Single mother	559	30.8
With partner	2938	21.5
Maternal age (y)			< 0.001b
< 20	656	29.7
20-34	2374	21.6
≥ 35	465	20.7
Parity			< 0.001b
0	1372	17.7
1	925	21.2
≥ 2	1199	30.4
Smoking during pregnancy			< 0.001b
Never smoked	2620	19.1
Smoked < 10 cigarettes per day	605	32.4
Smoked ≥ 10 cigarettes per day	272	39.3
Adequacy of antenatal care (Kessner Index)			< 0.001b
Adequate	1533	12.7
Intermediate	1065	28
Inadequate	854	33.4
No prenatal care	45	57.8
Type of delivery			< 0.001
Vaginal	1969	28.9
C-section	1528	15.4
Professional who assisted the delivery			< 0.001
Doctor	3099	21.4
Student	318	31.1
Midwife/nurse	18	44.4
Nobody/other	46	58.7
Type of insurance scheme			< 0.001
Public	2813	27.6
Private	679	4
Total	3497	23	-

^a x² test; ^b x² test for trend