Multivariate analysis of factors associated with IC versus no IC
| IC | No IC | N | P value | OR | 95% CI | |
| Total N | 82 | 94 | 176 | |||
| Age (years), median (IQR) | 54 (50–57) | 55 (53–58) | 176 | 0.83 | 1.00 | 0.97 to 1.02 |
| Sex (male) | 48 (72%) | 33 (37%) | 81 | 0.62 | 0.83 | 0.39 to 1.74 |
| Nausea, vomiting | 41 (61%) | 41 (46%) | 82 | 0.03 | 2.30 | 1.09 to 4.86 |
| Chemo<6 weeksxANC | 33 (49%) | 57 (63%) | 90 | 0.05 | 1.14 | 1.00 to 1.30 |
| Hematologic malignancy | 32 (48%) | 48 (53%) | 80 | 0.65 | 1.24 | 0.49 to 3.15 |
| Steroids | 8 (12%) | 17 (19%) | 25 | 0.13 | 0.44 | 0.15 to 1.27 |
| Platelets (1000/μL), median (IQR) | 171 (144–198) | 130 (108–152) | 173 | 0.01 | 1.01 | 1.00 to 1.01 |
| Stem cell transplant | 16 (24%) | 18 (20%) | 34 | 0.49 | 1.46 | 0.49 to 4.32 |
Chemo<6 weeks indicates chemotherapy received less than 6 weeks to presentation.
Area under the curve=0.75.
ANC, absolute neutrophil count; IC, interval cholecystectomy; PCT, percutaneous cholecystostomy tube.