The predictors to recurrent acute cholecystitis as analysed by Firth logistic regression
| Parameter | P value | OR (95% CI) |
| Age ≥75 | 0.416 | 0.51 (0.10 to 2.75) |
| Male | 0.478 | 0.58 (0.11 to 2.59) |
| Age-adjusted Charlson Comorbidity Index ≥5 | 0.788 | 0.82 (0.20 to 3.89) |
| Grade three acute cholecystitis | 0.806 | 0.79 (0.07 to 4.60) |
| Underwent PT-GBD | 0.027* | 5.63 (1.20 to 53.90) |
*Indicates significance.
GBD, gallbladder drainage; PT, percutaneous cholecystostomy.