Adverse pregnancy outcomes during the COVID-19 lockdown. A descriptive study

Table 3 Logistic regression analysis of differences in birth outcomes between babies born before and during the COVID-19 lockdown (During vs. Before)

Dependent variable	OR^a	95% confidence interval		p-value
Gestational age (reference: full term)
Extremely preterm (< 28 weeks)	0.88	0.66	1.18	0.397
Very preterm (28 to 32 weeks)	0.95	0.78	1.17	0.633
Moderate-to-late preterm (32 to 37 weeks)	0.98	0.90	1.07	0.673
Birth weight (reference: normal birth weight)
Low birth weight	1.08	0.99	1.16	0.073
Very low birth weight	0.84	0.68	1.04	0.111
Extremely low birth weight	0.39	0.30	0.50	0.000
Small for gestational age	1.07	0.98	1.17	0.121
Stillbirth (yes vs. no)	1.07	0.83	1.38	0.591
Neonatal death (yes vs. no)	0.87	0.70	1.09	0.227
Perinatal death (yes vs. no)	0.96	0.80	1.14	0.624

^a Adjusted for independent variables: mother’s age, income, education, occupation, nationality, health sector, and multiplicity. Gestational age and birth weight were analyzed using separate multinomial logistic regression; one model for each outcome. The outcomes (small for gestational age, stillbirth, neonatal death, and perinatal death) were analyzed using separate binary logistic regression; one model for each outcome

ISSN: 1471-2393