Table 2.

ID groups according to demographic and socioeconomic variables, maternal behavior, and health

	Genetic	Idiopathic	Neonatal sequelae	Other diseases	Nonbiological causes	p value
Total number	31	19	20	14	67	0.28
Maternal age
<19 years	12.9%	42.1%	25.0%	37.5%	24.0%
20–30 years	45.2%	42.1%	50.0%	43.7%	51.3%
30–35 years	25.8%	5.3%	10.0%	6.3%	13.3%
≥36 years	16.1%	10.5%	15.0%	12.5%	11.3%
Alcohol intake during pregnancy	3.2%	5.3%	5.0%	0.0%	0.0%	0.42
Tobacco smoking during pregnancy	25.8%	31.6%	45.0%	43.8%	40.0%	0.55
Maternal gestational diabetes	3.2%	5.3%	10.0%	6.3%	3.1%	0.76
Maternal depression in the first 4 years	22.6%	42.1%	45.0%	50.0%	24.6%	0.10
Maternal schooling						0.02
0–4 years	17.2%	21.1%	20.0%	56.3%	38.5%
5–8 years	62.1%	68.4%	60.0%	12.5%	43.1%
9–11 years	17.2%	10.5%	10.0%	31.3%	16.9%
≥12 years	3.5%	0.0%	10.0%	0.0%	1.5%
Paternal schooling						0.20
0–4 years	17.9%	43.8%	17.7%	20.0%	29.3%
5–8 years	60.7%	43.8%	41.2%	46.7%	50.0%
9–11 years	14.3%	12.5%	41.2%	20.0%	19.0%
≥12 years	7.1%	0.0%	0.0%	13.3%	1.7%
Socioeconomic level						0.07
A	6.7%	0.0%	0.0%	0.0%	0.0%
B	13.3%	5.6%	0.0%	21.4%	9.7%
C	50.0%	50.0%	70.0%	42.9%	37.1%
D	26.7%	44.4%	30.0%	21.4%	41.9%
E	3.3%	0.0%	0.0%	14.3%	11.3%