. Author manuscript; available in PMC: 2011 Mar 1.

Published in final edited form as: Am J Obstet Gynecol. 2009 Dec 22;202(3):263.e1–263.e5. doi: 10.1016/j.ajog.2009.10.859

Table 2.

Frequency of outcomes and univariate analyses

Outcome	Frequency – n (%)		p-value	Odds Ratio	95% Confidence Interval (CI)
Outcome	BMI < 25 (n = 96)	BMI ≥ 25 (n = 87)	p-value	Odds Ratio	95% Confidence Interval (CI)
PRIMARY
Composite	18 (18.8)	25 (28.7)	0.12	1.75	0.83-3.72
SECONDARY
RDS	12 (12.5)	10 (11.5)	1.00	0.91	0.33-2.45
BPD	6 (6.3)	11 (12.6)	0.20	2.17	0.69-7.47
CLD	3 (3.1)	6 (6.9)	0.31	2.30	0.47-14.58
IVH^*	4 (4.5)	9 (10.7)	0.15	2.55	0.67-11.74
PVL^*	0	0	-	-	-
NEC	4 (4.2)	2 (2.3)	0.69	0.54	0.05-3.90
ROP	3 (3.1)	9 (10.3)	0.07	3.58	0.85-21.11
Sepsis	1 (1.0)	2 (2.3)	0.61	2.24	0.11-133.2
Stillbirth or Neonatal death	1 (1.0)	0 (0.0)	1.00	-	-

RDS = respiratory distress syndrome; BPD = bronchopulmonary dysplasia; CLD = chronic lung disease; IVH = intraventricular hemorrhage; PVL = periventricular leukomalacia; NEC = necrotizing enterocolitis; ROP = retinopathy of prematurity.

Results are based on 89 patients with BMI < 25 and 84 patients with BMI ≥ 25.