Skip to main content
. Author manuscript; available in PMC: 2022 Oct 1.
Published in final edited form as: Ann Surg. 2021 Oct 1;274(4):e370–e380. doi: 10.1097/SLA.0000000000005099

Table 5.

Other secondary outcomes by preoperative diagnosis

Initial Laparotomy (N = 146) n/N (%) Initial Drainage (N = 162) n/N (%) Frequentist Adjusted Relative Risk (95% CI) Frequentist Adjusted Risk Difference (95% CI)
Subsequent laparotomy *
 NEC 12/41 (29.3%) 30/53 (56.6%) 0.53 (0.31, 0.89) −26% (−40, −11)
 IP 23/104 (22.1%) 51/109 (46.8%) 0.44 (0.29, 0.66) −26% (−36, −15)
Any intraoperative complication
 NEC 8/41 (19.5%) 7/53 (13.2%) 1.44 (0.58, 3.57) 6% (−8, 19)
 IP 21/104 (20.2%) 14/109 (12.8%) 1.63 (1.06, 2.50) 8% (1, 14)
Wound dehiscence
 NEC 6/42 (14.3%) 3/53 (5.7%) 2.52 (0.84, 7.55) 8% (0, 17)
 IP 5/104 (4.8%) 5/109 (4.6%) 1.05 (0.38, 2.88) 0% (−4, 5)
Intra-abdominal abscess
 NEC 2/42 (4.8%) 1/53 (1.9%) 1.78 (0.82, 3.86) Not Estimable
 IP 3/104 (2.9%) 3/109 (2.8%) 1.16 (0.42, 3.20) Not Estimable
Intestinal stricture
 NEC 4/42 (9.5%) 3/53 (5.7%) 1.68 (0.35, 8.05) Not Estimable
 IP 3/103 (2.9%) 6/109 (5.5%) 0.50 (0.10, 2.44) Not Estimable
Sepsis
 NEC 7/42 (16.7%) 7/53 (13.2%) 1.29 (0.62, 2.69) 4% (−6, 14)
 IP 16/104 (15.4%) 27/107 (25.2%) 0.60 (0.27, 1.32) −10% (−23, 4)
PN-associated cholestasis
 NEC 11/42 (26.2%) 19/53 (35.9%) 0.75 (0.41, 1.36) −9% (−28, 10)
 IP 25/104 (24.0%) 27/109 (24.8%) 0.99 (0.69, 1.42) 0% (−9, 8)
Severe IVH
 NEC 1/39 (2.6%) 3/51 (5.9%) 0.43 (0.04, 4.45) Not Estimable
 IP 17/101 (16.8%) 22/106 (20.8%) 0.81 (0.44, 1.49) Not Estimable
*

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