TABLE 1—

Percentages of Adequate Prenatal Care Use and Low Birthweight: Ribeirão Preto, Brazil, 1978–1979 and 1994

	1978–1979, No. (%)	1994, No. (%)
Adequacy of prenatal care use*
Inadequate	1712 (25.4)	309 (10.9)
Adequate	2657 (39.4)	1820 (64.0)
No prenatal care	490 (7.3)	75 (2.6)
Missing information on gestational age	1022 (15.1)	393 (13.8)
Missing information on prenatal care	869 (12.9)	249 (8.8)
Birthweight, g*
< 2500	483 (7.2)	303 (10.7)
≥ 2500	6235 (92.3)	2536 (89.1)
Not known	32 (0.5)	7 (0.2)
Total	6750 (100.0)	2846 (100.0)

*P < .001.