Table 4.

Adequacy of antenatal care by group and criteria

Criterion of adequacy	Group				p
	Case group		Control group
	(<2500 g)		(≥2500 g)
	Adequate		Adequate
	N = 511	%	N = 538	%
1. Number of visits1	351	68.7	433	80.5	< 0.001
2. Modified Kessner Index2	299	64.4	330	61.3	0.210
3. Antenatal care3	272	94.4	281	98.6	0.007

Source: Records of pregnant women in Primary Health Care Units and Clinics Hospital.

¹Adequacy based on PPBH [12]; ²No information Case group 31 (6.1%); Control group 16 (2.9%);

³No Information Case group 223 (43.6%); Control group 253 (47.0%).