Table 4.

Other secondary outcomes by preoperative diagnosis

Outcome	Initial Laparotomy (N = 146) mean (SD)	Initial Drainage (N = 162) mean (SD)	Frequentist Mean Difference (95% CI)
Duration of mechanical ventilation, days
NEC	31.0 (22.6)	31.7 (22.5)	−1.27 (−14.10, 11.6)
IP	34.1 (26.6)	42.2 (28.0)	−7.85 (−15.84, 0.13)
Duration of parenteral nutrition, days
NEC	53.5 (31.3)	65.3 (42.0)	−11.57 (−27.15, 4.01)
IP	56.3 (35.2)	63.6 (33.7)	−7.63 (−17.46, 2.20)
Final bowel length, cm
NEC	62.7 (25.0)	64.0 (44.2)	4.00 (−18.84, 26.83)
IP	83.1 (20.9)	74.7 (22.4)	9.05 (−13.29, 31.38)
Time to full feeds, days
NEC	29.6 (18.9)	32.3 (21.3)	−3.13 (−24.62, 18.36)
IP	52.4 (50.4)	56.3 (27.1)	−2.39 (−14.42, 9.63)
Length of hospital stay, days
NEC	80.2 (77.8)	99.3 (87.7)	−18.43 (−48.41, 11.55)
IP	109.6 (67.0)	121.3 (64.7)	−11.95 (−31.96, 8.06)

^*Denominators in each cell reflect the number of infants with complete data for each outcome reported.