Variables | Category | Case(n = 89) | Control(n = 267) | Total(n = 356) |
---|---|---|---|---|
n (%) | n (%) | n (%) | ||
Sex of neonate | Male | 56 (62.92) | 162(60.67) | 218 (61.24) |
Female | 33(37.08) | 105 (39.33) | 138 (38.76) | |
Birth type | Singleton | 86 (96.63) | 258 (96.63) | 344 (96.63) |
Twin | 3 (3.37) | 9 (3.37) | 12 (3.37) | |
Gestational age at birth (in weeks) |  < 37 | 21 (23.60) | 38 (14.23) | 59 (16.57) |
37- 42 | 62 (69.66) | 218 (81.65) | 280 (78.65) | |
 >  = 42 | 6 (6.74) | 11 (4.12) | 17 (4.78) | |
Birth weight (in grams) |  < 2500 | 15 (16.85) | 27 (10.11) | 42 (11.80) |
2500–4000 | 65 (73.03) | 226 (84.64) | 291 (81.74) | |
 > 4000 | 9 (10.11) | 14 (5.24) | 23 (6.46) |