Table 3. Filling out percentage of identification, pregnancy and birth monitoring data reported in the studies included in the systematic review. ^a .

Authors		Ratis and Batista 17	Carvalho et al. 21	Vieira et al. 23	Goulart et al. 24	Alves et al. 25	Linhares et al. 26
Research year		1998	1998	2001	2005	2006	2008
Document		CHC	CHC	CHC	CHR	CHR	CHR
N		1194	662	2215	797	355	107
Age		<5 years	<12 months	≤12 months	<9 months	<16 months	<12 months
Identification
	Name	–	–	99.8	55.6	93.8	93.5
	Birth date	–	–	99.3	90.1	99.7	100
	Birthplace	–	–	76.6	–	–	98.1
	Mother's name	–	–	–	90.7	98.9	99.1
	Address	–	–	–	38.9	–	73.8
	Telephone	–	–	–	22.1	–	47.7
	Neighborhood	–	–	–	33.4	–	67.3
	Zip code	–	–	–	14.6	–	21.5
	City	–	–	–	34.3	–	64.5
	Ethnicity/Color	–	–	–	50.1	–	66.4
	N° CLB	–	–	–	60.9	–	33.6
	N° BC	–	–	–	2.0	–	8.4
Gestation
	Prenatal	–	–	–	59.6	58.0	–
	N° prenatal visit	–	–	–	68.5	69.9	–
	Serology	–	–	–	50.0	–	–
	Type of delivery	–	–	93.3	84.9	89.3	–
	Birth
	Gestational age	–	–	–	75.8	72.4	–
	Apgar5′	–	–	28.4	76.7	53.5	–
	Weight	86.8	89.4	97.2	91.1	96.9	–
	Length	–	–	91.8	89.6	91.2	–
	Head circumference	–	–	88.9	84.9	85.6	–

^aThe studies by Santos et al. 20 and Sardinha and Pereira 22 showed no filling out results of identification, pregnancy monitoring, and birth.

CLB, Certificate of Live Birth; BC, Birth Certificate.