Mean costs and hospital length of stay, across BMI categories.
| N | BMI categories | ||||
| Underweight | Normal | Overweight | Obese | Super-obese | |
| 52 | 320 | 192 | 165 | 39 | |
| Total hospital admission costs, | |||||
| Mean ($AUD) | 7605 | 7359 | 7442 | 7530 | 8487 |
| SD | 3589 | 3039 | 2543 | 2680 | 3564 |
| Cost subgroups | |||||
| Theatre, mean ($AUD) | 2531 | 2306 | 2466 | 2556 | 2814 |
| SD | 1788 | 724 | 836 | 795 | 1103 |
| Length of hospital stay | |||||
| Mean (days) | 3.8 | 4.0 | 4.0 | 3.9 | 4.4 |
| Min-max (days) | 1–11 | 1–15 | 1–20 | 1–14 | 3–9 |
BMI, body mass index.