Table 2.
Analysis between confounders and renal stone prevalence.
| Characteristic | Model 1 OR(95% CI) | Model 2 OR(95% CI) | Model 3 OR(95% CI) |
|---|---|---|---|
| HCV(–) | 1 | 1 | 1 |
| HCV(+) | 1.96(1.31, 2.92) | 1.96(1.31, 2.93) | 1.70(1.13, 2.56) |
| Subgroups | |||
| Race | |||
| Mexican American | 2.24(0.65, 7.73) | 2.07(0.58, 7.40) | 1.75(0.47, 6.54) |
| Other hispanic | 2.36(0.68, 8.21) | 1.90(0.52, 6.94) | 1.92(0.51, 7.28) |
| Non-hispanic white | 1.60(0.88, 2.91) | 1.50(0.82, 2.76) | 1.49(0.81, 2.75) |
| Non-hispanic black | 1.90(0.85, 4.22) | 1.49(0.65, 3.40) | 1.41(0.61, 3.25) |
| Others | 10.83(2.54, 46.13) | 5.40(1.08, 26.94) | 8.17(1.62, 41.22) |
| BMI (kg/m 2 ) | |||
| <25 | 2.60(1.16, 5.83) | 1.95(0.84, 4.49) | 2.10(0.91, 4.86) |
| 25–30 | 2.53(1.31, 4.88) | 1.99(1.01, 3.93) | 2.45(1.24, 4.83) |
| >30 | 1.38(0.73, 2.62) | 1.39(0.72, 2.67) | 1.24(0.64, 2.40) |
Model 1, no covariates were adjusted.
Model 2, Model 1+age, race were adjusted.
Model 3, Model 2+diabetes, blood pressure, education, marital status, BMI, serum calcium, PIR, ever receive blood transfusion, total water, physical activity, alcohol use, serum creatinine were adjusted. The subgroup analysis was stratified by race and BMI, not adjusted for the stratification variable itself.