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Table 2 Multivariable logistic regression model to evaluate factors associated with postoperative complications

From: Postoperative complications after gastrointestinal pediatric surgical procedures: outcomes and socio-demographic risk factors

Variable All procedures Appendectomy
OR 95% CI OR 95% CI
Procedure     
  Small bowel resection Ref   
  Appendectomy 0.17 0.10–0.29 Ref
  Cholecystectomy 0.31 0.17–0.54   
  Colonic resection 0.82 0.41–1.65   
  Pyloromyotomy 0.02 0.01–0.05   
  Combination of two procedures 0.8 0.36–1.76 4.75 2.40–9.38
  Combination of three procedures 4.22 0.42–42.95 25.71 2.73–242.38
Age group     
  >12 years Ref Ref
  < 1 month 3.71 1.57–8.77 17.03 7.70–37.68
  1–24 months 2.11 1.32–3.35 1.77 0.99–3.17
  2–12 years 0.92 0.82–1.05 0.88 0.77–1.00
Sex     
  Male Ref Ref
  Female 0.67 0.60–0.76 0.7 0.62–0.80
Race     
  Caucasian Ref Ref
  African American 1.38 1.13–1.69 1.36 1.08–1.73
  Hispanic 0.97 0.84–1.12 0.98 0.84–1.14
  Asian and Pacific Islander 1.08 0.76–1.52 1.09 0.76–1.57
  Native American 1.71 1.08–2.71 1.43 0.82–2.50
  Other 1.3 1.03–1.65 1.42 1.11–1.83
Insurance Status     
  Medicare Ref Ref
  Medicaid 0.51 0.23–1.13 0.58 0.23–1.47
  Private Insurance 0.55 0.25–1.20 0.62 0.24–1.57
  Self-pay 0.58 0.25–1.31 0.65 0.25–1.72
  No Charge 0.89 0.27–2.95 1 0.25–1.72
  Other 0.69 0.30–1.60 0.79 0.30–2.13
Median Income for ZIP code     
  First Quartile Ref Ref
  Second Quartile 1.09 0.94–1.26 1.16 0.99–1.37
  Third Quartile 1.08 0.93–1.27 1.09 0.92–1.29
  Fourth Quartile 0.91 0.76–1.10 0.93 0.76–1.13
Geographic Region of Hospital     
  Northeast Ref Ref
  Midwest 1.22 1.00–1.49 1.16 0.93–1.44
  South 1.18 0.99–1.41 1.21 1.00–1.47
  West 1.01 0.84–1.21 1 0.82–1.21
Hospital Location and Teaching Status     
  Rural Ref Ref
  Urban Non-teaching 0.94 0.74–1.18 0.96 0.75–1.24
  Urban Teaching 0.74 0.60–0.92 0.74 0.58–0.94
Hospital Size     
  Small (1 to 99 beds) Ref Ref
  Medium (100 to 399 beds) 0.89 0.73–1.07 0.93 0.76–1.14
  Large (≥ 400 beds) 0.9 0.77–1.06 0.9 0.76–1.08
Admission Modality     
  Non-elective Ref Ref
  Elective 1.51 1.24–1.84 1.3 1.00–1.69
Admission Day     
  Weekday Ref Ref
  Weekend 0.97 0.85–1.10 0.94 0.82–1.08
Admission Month     
  Month 1.00 0.99–1.02 1.00 0.98–1.02
Intestinal Perforation     
  No Ref Ref
  Yes 4.12 3.57–4.75 4.27 3.69–4.94
  1. CI Confidence Interval, OR Odds Ratio, Ref Reference Group