Table 4.
Length of Stay, In-hospital Mortality and Failure to Rescue Following Minor and Major Hepatobiliary Resections, According to Hospital Volume Categories
| Hospital Volume Categories | ||||||
|---|---|---|---|---|---|---|
| Very Low (1–10) | Low (11–20) | Medium (21–40) | High (41–100) | Very High (> 100) | ||
| Minor Liver Surgery | ||||||
| Length of Stay (Days) | Median (IQR) | 14 (10–21) | 13 (10–20) | 12 (9–18) | 13 (9–21) | 12 (9–19) |
| In-hospital Mortality | n/N | 247/5526 | 82/2473 | 60/2002 | 93/2156 | 57/1684 |
| Obs Rate % | 4.5 | 3.3 | 3.0 | 4.3 | 3.4 | |
| Adj Rate % (95% CI) | 4.5 (4.0–5.1) | 3.3 (2.6–4.1) | 3.3 (2.5–4.2) | 4.0 (3.2–4.8) | 3.3 (2.5–4.2) | |
| Incidence of Complicationsa | n/N | 1137/5526 | 479/2473 | 391/2002 | 507/2156 | 408/1684 |
| Obs Rate % | 20.58 | 19.37 | 19.53 | 23.52 | 24.23 | |
| Failure to Rescuea | n/N | 208/1137 | 73/479 | 57/391 | 87/507 | 53/408 |
| Obs Rate % | 18.29 | 15.24 | 14.58 | 17.16 | 12.99 | |
| Adj Rate % (95% CI) | 17.9 (15.6–20.5) | 15.33 (12.0–19.3) | 14.0 (10.6–18.1) | 17.1 (13.7–21.1) | 13.54 (10.1–17.7) | |
| Major Liver Surgery | ||||||
| Length of Stay (Days) | Median (IQR) | 17 (12–28) | 17 (12–29) | 16 (12–28) | 17 (12–28) | 18 (12–30) |
| In-hospital Mortality | n/N | 488/4208 | 269/2480 | 274/2646 | 406/4399 | 349/3540 |
| Obs Rate % | 11.6 | 10.9 | 10.4 | 9.2 | 9.9 | |
| Adj Rate % (95% CI) | 11.4 (10.4–12.5) | 10.1 (9.0–11.3) | 9.19 (8.1–10.4) | 8.0 (7.3–8.9) | 7.4 (6.6–8.2) | |
| Incidence of Complicationsa | n/N | 1487/4208 | 893/2480 | 881/2646 | 1514/4399 | 1405/3540 |
| Obs Rate % | 35.34 | 36.01 | 33.30 | 34.42 | 39.69 | |
| Failure to Rescuea | n/N | 451/1487 | 259/893 | 268/881 | 394/1514 | 341/1405 |
| Obs Rate % | 30.33 | 29.00 | 30.42 | 26.02 | 24.27 | |
| Adj Rate % (95% CI) | 29.38 (26.7–32.2) | 27.13 (23.9–30.7) | 28.05 (24.8–31.6) | 24.0 (21.7–26.5) | 21.38 (19.2–23.8) | |
Data are in n/N. Observed Rate (Obs Rate) in % and Adjusted Rate (Adj Rate) in % (95% CI). Covariates used for risk adjustment are displayed in Appendix Table 2
aNumber of Treatment Cases with at Least one Complication (including Peritonitis, Sepsis, Liver Failure, Acute Myocardial Infarction, Stroke, Pulmonary Embolism, Hemodialysis [> 72 h], Prolonged Mechanical Ventilation [> 48 h], Blood Transfusions [≥6], Percutaneous Abdominal Drainage)