Table 3.
The association of nephrolithiasis with MetS and its components
| Characteristics | No of participants | Nephrolithiasis | Non-nephrolithiasis | OR | 95% CI | P-value |
|---|---|---|---|---|---|---|
| Total, n (%) | 3,793 (100) | 639 (16.8) | 3,154 (83.2) | <0.001 | ||
| Non-MetS | 2,826 (74.5) | 416 (14.7) | 2,410 (85.3) | 1.000 (reference) | 1.000 (reference) | |
| MetS | 967 (25.5) | 223 (23.1) | 744 (76.9) | 1.736 | 1.447–2.084 | |
| No of metS components | <0.001 | |||||
| 0 | 931 (24.5) | 98 (10.5) | 833 (89.5) | 1.000 (reference) | 1.000 (reference) | |
| 1 | 1,081 (28.5) | 164 (15.2) | 917 (84.8) | 1.520 | 1.164–1.986 | |
| 2 | 814 (21.5) | 154 (18.9) | 660 (81.1) | 1.989 | 1.509–2.606 | |
| 3 | 551 (14.5) | 116 (21.1) | 435 (78.9) | 2.267 | 1.691–3.038 | |
| 4 | 316 (8.3) | 81 (25.6) | 235 (74.4) | 2.930 | 2.111–4.067 | |
| 5 | 100 (2.6) | 26 (26) | 74 (74) | 2.986 | 1.823–4.892 | |
| Gender | <0.001 | |||||
| Female | 1,675 (44.2) | 205 (12.2) | 1,470 (87.8) | 1.000 (reference) | 1.000 (reference) | |
| Male | 2,118 (55.8) | 434 (20.5) | 1,684 (79.5) | 1.848 | 1.543–2.213 | |
| Waist circumference (cm) | <0.001 | |||||
| Normal | 2,797 (73.7) | 424 (15.2) | 2,373 (84.8) | 1.000 (reference) | 1.000 (reference) | |
| Larger | 996 (26.3) | 215 (21.6) | 781 (78.4) | 1.541 | 1.283–1.850 | |
| Blood pressure (mmHg) | <0.001 | |||||
| Normal | 1,928 (50.8) | 246 (12.8) | 1,682 (87.2) | 1.000 (reference) | 1.000 (reference) | |
| Higher | 1,865 (49.2) | 393 (21.1) | 1,472 (78.9) | 1.825 | 1.534–2.172 | |
| HDL cholesterol (mg/dL) | 0.024 | |||||
| Normal | 2,405 (63.4) | 380 (15.8) | 2,025 (84.2) | 1.000 (reference) | 1.000 (reference) | |
| Lower | 1,388 (36.6) | 259 (18.7) | 1,129 (81.3) | 1.222 | 1.027–1.455 | |
| Triglycerides (mg/dL) | 0.002 | |||||
| Normal | 2,985 (78.7) | 473 (15.8) | 2,512 (84.2) | 1.000 (reference) | 1.000 (reference) | |
| Higher | 808 (21.3) | 166 (20.5) | 642 (79.5) | 1.373 | 1.128–1.672 | |
| Fasting glucose (mg/dL) | <0.001 | |||||
| Normal | 2,724 (71.8) | 398 (14.6) | 2,326 (85.4) | 1.000 (reference) | 1.000 (reference) | |
| Higher | 1,069 (28.2) | 241 (22.5) | 828 (77.5) | 1.701 | 1.423–2.034 |
Abbreviations: OR, odds ratio; CI, confidence interval; MetS, metabolic syndrome; HDL, high-density lipoprotein.