Appendix B. Comparison of characteristics between included (colectomy after 48 hours) and excluded (colectomy within 48 hours) total colectomy patients.

Colectomy After 48 Hrs / Colectomy Within 48 Hrs / p-value
n / % / n / %
Total / 240 / 100.0% / 314 / 100.00%
Colitis Category
Pure UC / 227 / 94.58% / 295 / 93.95% / 0.75
Other Idiopathic Colitis / 13 / 5.42% / 19 / 6.05%
Demographics
Male / 111 / 46.25% / 167 / 53.18% / 0.11
Medicaid Insurance / 31 / 12.92% / 23 / 7.32% / 0.03
Age 0-4 years / 18 / 7.50% / 10 / 3.18% / 0.11
Age 5 -10 years / 55 / 22.92% / 68 / 21.66%
Age 11-14 years / 79 / 32.92% / 118 / 37.58%
Age 15- 17 years / 88 / 36.67% / 118 / 37.58%
Comorbidities
Malnutrition / 29 / 12.08% / 9 / 2.87% / <0.001
Anemia / 118 / 49.17% / 32 / 10.19% / <0.001
Primary sclerosing cholangitis / 2 / 0.83% / 7 / 2.23% / 0.20
Diabetes Mellitus / 0 / 0.00% / 1 / 0.32% / 0.38
Anxiety disorder / 12 / 5.00% / 15 / 4.78% / 0.90
Depression / 6 / 2.50% / 0 / 0.00% / 0.01
Asthma / 14 / 5.83% / 20 / 6.37% / 0.79
Obesity / 2 / 0.83% / 5 / 1.59% / 0.43
Lower GI hemorrhage / 14 / 5.83% / 2 / 0.64% / <0.001
Arthropathy / 3 / 1.25% / 5 / 1.59% / 0.74
Sepsis/SIRS / 12 / 5.00% / 7 / 2.23% / 0.08
Volume Depletion / 41 / 17.08% / 8 / 2.55% / <0.001
Electrolyte Imbalance / 49 / 20.42% / 14 / 4.46% / <0.001
Clostridium difficile Colitis / 27 / 11.25% / 3 / 0.96% / <0.001
Toxic Megacolon / 0 / 0.00% / 0 / 0.00% / -
Fulminant Colitis / 9 / 3.75% / 2 / 0.64% / 0.01
Intestinal Perforation / 11 / 4.58% / 3 / 0.96% / 0.01