Table 3.
Association between BMI category and incident kidney stones in multivariate-adjusted analyses
| BMI | aHRa (95% CI) | P Value |
|---|---|---|
| <0.001 | ||
| <18.5 kg/m2 (underweight) | 0.79 (0.47 to 1.32) | |
| 18.5–24.9 kg/m2 (normal weight) | Reference | |
| 25–29.9 kg/m2 (overweight) | 1.30 (1.17 to 1.44) | |
| 30–34.9 kg/m2 (moderately obese) | 1.62 (1.43 to 1.83) | |
| ≥35 kg/m2 (severely obese) | 1.81 (1.57 to 2.10) |
This model does not include physical activity or calibrated dietary energy intake.
a
Adjusted for age (continuous); race (category); history of diabetes; use of calcium supplement; hormone replacement therapy (category); income (dichotomized); region (category); and quintile intake of water, sodium, animal protein, and dietary calcium.