Outcome | Low,  ≤ 18.5 kg/m2 | Medium–low, 18.6–21.0 kg/m2 | Medium–high, 21.1–23.7 kg/m2 | High,  ≥ 23.8 kg/m2 | P value |
---|---|---|---|---|---|
In-hospital mortality | 146 (14.8%) | 77 (7.8%) | 68 (6.9%) | 59 (6.0%) |  < 0.001 |
Length of stay | 23.8 (22.0) | 21.0 (19.5) | 17.9 (17.0) | 17.5 (16.0) |  < 0.001 |