Table 1.
Pre-operative risk factors in cholecystitis patients predicting GC
| GC (n = 351) n1/n2 (%) | No GC (n = 4892) n1/n2 (%) | Unadjusted OR (95% CI) | Adjusted OR (95% CI) | |
|---|---|---|---|---|
| Age (>45 versus ≤ 45 years) | 291/351 (83%) | 2946/4892 (60%) | 3.2 (2.4–4.3) | 4.8 (2.2–10.6) |
| HR (> 90 versus ≤ 90 / min) | 138/328 (33%) | 384/3067 (15%) | 2.8 (1.9–4.1) | 2.0 (1.1–3.6) |
| Gender (male versus female) | 178/351 (51%) | 1220/4892 (25%) | 3.1 (2.5–3.9) | 1.4 (0.8–2.5) |
| WBC (> 13000 versus < 13000) | 138/328 (42%) | 384/3067 (13%) | 5.1 (4.0–6.5) | 2.8 (1.6–5.0) |
| GBWT (Yes versus no) | 159/215 (74%) | 781/1649 (47%) | 3.2 (2.3–4.3) | 2.2 (1.2–4.1) |
GC: gangrenous cholecystitis; OR: odds ratio; CI, confidence interval; HR: heart rate; WBC: white blood cell count; GBWT: gallbladder wall thickening.
Data were complete for age and gender but partially missing for other variables. For each variable, n1 shows the number with the condition (e.g. age > 45) and n2 shows the total number with data.
Odds ratios and 95% confidence intervals are obtained using logistic regression models. In the adjusted models, each variable was adjusted for other variables shown in the table. A total of 478 patients had data for all variables, from whom data were used to construct the adjusted model.