Birthweight, gestational age, and early school trajectory

BMC Public Health

Table 3 Association of birthweight and gestational age with school entry, grade repetition, and dropout

Independent variable	School entry		Repetition		Dropout
Independent variable	HR	95% CI	HR	95% CI	HR	95% CI
Birthweight (ref. BW ≥ 2500)
≤ 1999	0.69	0.56–0.85	1.17	0.22–2.12	0.94	0.52–1.35
2000–2499	0.92	0.85–0.99	1.39	0.89–1.88	1.43	0.44–2.42
Gestational age (ref. GA ≥ 37)
≤ 31	1.01	0.90–1.11	0.82	0.43–1.56	0.97	0.35–1.57
32–36	1.05	1.00-1.09	1.00	0.75–1.35	0.94	0.55–1.35

HR: Hazard rate; CI: Confidence interval; BW: Birthweight; GA: Gestational age; all models were adjusted for sex, birth rank, mother’s education, mother’s age at childbirth, household socioeconomic status, and place of residence.

ISSN: 1471-2458