Table 1. Study population.

Year of survey		2008	2013
Newborn under registration		n = 3706	n = 3128
Sex–male		1895 (51%) 49.5%-52.7%	1566 (50.1%) 48.3%-51.9%
Age at registration in days		8.1 (±5.2)	8.7 (±6.5)
Mother		n = 3706	n = 3128
Age in years		28.5 (±5.9)	27.8 (±5.5)
Education in years		11.5 (±3.2)	12.6 (±3.1)
Number of pregnancies		5.1 (±2.8)	4.6 (±2.6)
Number of children born alive		4.7 (±2.2)	4.0 (±2.0)
Living inside camp		no data	1038 (33.4%) 31.8%-34.9%
Working mothers		no data	287 (9.2%) 8.2%-10.4%
Consanguineous marriage		no data	960 (30.7%) 29.1%-32.4%
Risk classification preceding pregnancy	normal	no data	2014 (64.4%) 62.7%-66.0%
	alert	no data	657 (21.1%) 19.7%-22.5%
	high	no data	449 (14.4%) 13.2%-15.7%
Preceding child			n = 3162
Gestational age in weeks		no data	39.3 (±1.7)
Birth weight in grams		no data	3262.9 (±528.0)
Preterm birth (< 37 weeks)		no data	157 (5.0%) 4.2%-5.7%
Low birth weight (< 2500 gram) and preterm		no data	86 (2.7%) 2.2%-3.3%
Low birth weight and full term		no data	90 (2.8%) 2.2%-3.4%

Data are presented as mean (±SD) or n (%) with 95% confidence intervals.