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Number of patients per category in modelled and observed cases and χ2 test results.
| Parameter | Underweight | Normal-weight | Overweight | Obese |
|---|---|---|---|---|
| Expected patients from model distribution, n (%) | 7 (0.7) | 375 (34.8) | 532 (49.3) | 164 (15.2) |
| Observed patients, n (%) | 4 (0.4) | 318 (29.5) | 546 (50.6) | 211 (19.6) |
| Difference in observed vs. modeled, % | -0.3 | -5.3 | +1.3 | +4.4 |
| χ2 test statistic (P-value) | 10.46 (0.015) |
