Table 3a.
Geometric mean respiratory disturbance index (95% CI) by quartile of cystatin-C for age >75 years
| Quartile of cystatin-Ca | Geometric mean RDI (95% CI) |
||
|---|---|---|---|
| Unadjusted model | Model adjusted for race | Model adjusted for race and BMI | |
| Q1 (n = 33) | 5.3 (3.4-7.9) | 5.3 (3.4-7.9) | 6.0 (4.0-8.8) |
| Q2 (n = 54) | 7.2 (5.3-9.8) | 7.3 (5.3-9.9) | 7.6 (5.6-10.2) |
| Q3 (n = 69) | 7.9 (6.0-10.4) | 7.8 (5.9-10.2) | 7.2 (5.5-9.4) |
| Q4 (n = 85) | 6.7 (5.2-8.5) | 6.8 (5.2-8.6) | 6.7 (5.2-8.4) |
| P for trend | 0.518 | 0.499 | 0.953 |
a
Quartile cut points of cystatin-C (mg/L): <1.01, 1.01-1.14, 1.15-1.33, ≥1.34.