Table 5. Univariable and multivariable models of hazard ratios for CKD.
| Univariable | Multivariable | |||||
|---|---|---|---|---|---|---|
| Risk Factor | HR | 95% CI | P value | HR | 95% CI | P value |
| Age at surgery (per 10 yr) | 1.44 | 1.23-1.70 | <0.001 | 1.23 | 1.02-1.48 | 0.03 |
| Male Sex | 1.86 | 1.27-2.74 | 0.0014 | 1.40 | 0.93-2.10 | 0.11 |
| Hypertension | 0.47 | 0.33-0.66 | <0.001 | 0.70 | 0.47-1.04 | 0.08 |
| Diabetes | 0.28 | 0.20-0.39 | <0.001 | 0.34 | 0.24-0.49 | <0.001 |
| Arthritis | 0.98 | 0.68-1.40 | 0.91 | 1.05 | 0.67-1.65 | 0.83 |
| Sleep apnea | 0.72 | 0.52-1.02 | 0.06 | 1.10 | 0.75-1.61 | 0.63 |
| Type of bariatric surgery | ||||||
| Control (referent) | 1.00 | na | na | 1.00 | na | na |
| RYGB | 0.71 | 0.48-1.05 | 0.09 | 0.70 | 0.44-1.12 | 0.14 |
| Malabsorptive | 1.91 | 1.14-3.20 | 0.01 | 1.96 | 1.06-3.64 | 0.03 |
| Restrictive | 0.61 | 0.15-2.49 | 0.49 | 0.73 | 0.18-3.04 | 0.67 |
Abbreviations: HR: hazard ratio; CI” confidence interval; na: not applicable; RYGB Roux-en-Y gastric bypass