Table 1. Comparison of demographic, anthropometric and biochemical indicators, among the elderly with and without kidney stones .
| Variable |
Nephrolithiasis +
n=202 |
Nephrolithiasis −
n=1188 |
P value |
| Age (Mean ± SD) | 67.95 ± 6.18 | 69.20 ± 7.44 | 0.010 |
| Gender | 0.007 | ||
| Male (%) | 131 (16.8) | 648 (83.2) | |
| Female (%) | 71 (11.6) | 540 (88.4) | |
| Smoking | 0.877 | ||
| + (%) | 38 (14.2) | 229 (85.8) | |
| –(%) | 164 (14.6) | 959 (85.4) | |
| Diabetes | 0.788 | ||
| + (%) | 61 (14.2) | 370 (85.8) | |
| –(%) | 141 (14.7) | 818 (85.3) | |
| MeS | 0.163 | ||
| + (%) | 159 (15.3) | 880 (84.7) | |
| - (%) | 43 (12.3) | 308 (87.7) | |
| Ca (mg/dL) (Mean ± SD) | 9.26 ± 0.43 | 9.25 ± 0.47 | 0.857 |
| Uric Acid (mg/dL) Mean ± SD) | 4.98 ± 1.04 | 4.83 ± 0.93 | 0.041 |
| PTH (pg/mL) (Mean ± SD) | 5.36 ± 0.70 | 5.41 ± 0.77 | 0.264 |
| Vitamin D (ng/mL) (Mean ± SD) | 33.99 ± 30.34 | 34.43 ± 33.14 | 0.860 |
| BMI (kg/m2) (Mean ± SD) | 28.00 ± 4.38 | 27.05 ± 4.53 | 0.006 |
| Physical activity score (Mean ± SD) | 111.10 ± 61.89 | 106.77 ± 61.33 | 0.354 |
| Urine pH (Mean ± SD) | 5.36 ± 0.70 | 5.41 ± 0.77 | 0.332 |
Abbreviations: PTH, parathyroid hormone; MeS, metabolic syndrome