Table 3.

Infant Characteristics, Overall and According to Presence or Absence of Congenital Anomaly (ies)

Characteristics	Overall [No.]	Congenital anomaly (ies) present [No. (%)]	No Congenital anomaly (ies) present [No. (%)]	P value*
Gender
Female	467	29 (6.2)	438 (93.8)
Male	502	29 (5.8)	473 (94.2)	0.79
Missing	26	2	24
Gestational age (completed weeks)
<37	95	8 (8.4)	87 (91.6)
≥ 37	873	50 (5.7)	823 (94.3)	0.26
Missing	27	2	25
Birth weight (grams)
<2500	135	13 (9.6)	122 (90.4)
≥ 2500	833	45 (5.4)	788 (94.6)	0.08
Missing	27	2	25

^*P value using Fisher exact test. (Missing values not included in calculation of P value.)