Total cohort (N = 578) Cases of VS-LRTI (N = 36)
Sex
Female
267 (46.2%)
18 (50.0%)
Mode of delivery
Vaginal
445 (77.0%)
29 (80.6%)
Caesarean
133 (23.0%)
7 (19.4%)
Parity
Monoparity
227 (39.3%)
4 (11.1%)
Multiparity
351 (60.7%)
32 (88.9%)
Gestational age at delivery (weeks of amenorrhea)
Mean (SD†)
38.7 (2.5)
39.1 (1.2)
Term
521 (90.1%)
36 (100.0%)
Moderate-to-late preterm
43 (7.4%)
0 (0.0%)
Very preterm
9 (1.6%)
0 (0.0%)
Extremely preterm
5 (0.9%)
0 (0.0%)
Infant birth weight (g)
Mean (SD†)
3179 (633)
3301 (337)
Low birth weight (< 2500 g)
65 (11.3%)
0 (0.0%)
Type of pregnancy
Singleton
543 (93.9%)
36 (100.0%)
Multiple
35 (6.1%)
0 (0.0%)
Date of birth in relation to the peak of the epidemic
Birth before the peak
277 (47.9%)
31 (86.1%)
Birth after the peak
301 (52.1%)
5 (13.9%)