Table 1.
Baseline characteristics of the stone former and control cohorts
| Baseline Characteristics | Stone Formers, n=1072 | Controls, n=942 | P Value |
|---|---|---|---|
| Age, yr | 41 (±14) | 42 (±14) | 0.08 |
| Men | 570 (53) | 496 (53) | 0.82 |
| Body mass index, kg/m2 | 29.2 (±6.8) | 28.1 (±7) | <0.001 |
| Thiazide use | 6 (0.6) | 3 (0.3) | 0.41 |
| Serum creatinine, mg/dl | 1.02 (±0.3) | 0.98 (±0.3) | <0.01 |
| CKD | 112 (10) | 12 (1) | <0.001 |
| Diabetes mellitus | 55 (5) | 40 (4) | 0.35 |
| Dyslipidemia | 96 (9) | 95 (10) | 0.39 |
| Gout | 1 (0.1) | 4 (0.4) | 0.13 |
| Coronary artery disease | 2 (0.2) | 4 (0.4) | 0.33 |
| Tobacco use | 46 (4) | 36 (4) | 0.59 |
| Alcohol abuse | 13 (1.2) | 15 (1.6) | 0.47 |
Values are presented as n (%) or mean (±SD).