Table 3 Length of stay, survival, and mortality according to BMI classification and disease severity
Disease severity | Variables | Â | BMI classification | Total | p-value | ||
|---|---|---|---|---|---|---|---|
Underweight (N = 99) | Normal (N = 403) | Overweight (N = 220) | Obesity (N = 422) | ||||
Low | ICU LOS (d)a | 5 (2–14) | 12 (5–26) | 6.5 (3–14.5) | 8 (3–15) | 8 (3–18) | 0.001 |
Hospital LOS (d)a | 9.5 (2.3–44.5) | 28 (14–63.5) | 25.5 (10–48) | 22 (9–42) | 23 (10–48) | 0.002 | |
Mortality 30th day (n, %) | 38 (61.3) | 93 (43.5) | 66 (53.2) | 97 (48.5) | 294 (49.0) | 0.06 | |
High | ICU LOS (d)a | 4 (1–12) | 5 (2–14) | 5 (3–18) | 8 (3–18) | 7 (2.5–17) | 0.61 |
Hospital LOS (d)a | 5 (2–18.5) | 10 (2–27) | 16 (3–37) | 18.5 (6–40.8) | 15 (4–35) | 0.002 | |
Mortality 30th day (n, %) | 32 (86.5) | 163 (86.2) | 70 (72.9) | 142 (64.3) | 407 (74.9) | <  0.001 | |
Total | ICU LOS (d)a | 5 (2–14) | 9 (3–20) | 6 (3–15) | 8 (3–16) | 8 (3–17.5) | 0.03 |
Hospital LOS (d)a | 8 (2–30) | 20 (7–46) | 23 (6.5–45.5) | 21 (8–41) | 20 (6–43) | 0.006 | |
Mortality 30th day (n, %) | 70 (70.7) | 256 (63.5) | 136 (61.8) | 239 (56.8) | 701 (61.3) | 0.04 | |