Table 3.
Independent associations between quartiles of serum Cystatin C levels (reference: ≤0.786 mg/dl) and DSST z-scores.a
| Quartile 1 ≤ 0.786 mg/dl (n = 1,214) | Quartile 2 0.786–0.903 mg/dl (n = 1,204) | Quartile 3 0.903–1.07 mg/dl (n = 1,220) | Quartile 4 > 1.07 mg/dl (n = 1,194) | |
|---|---|---|---|---|
| Digit symbol substitution test | Reference | 0.005(−0.056, 0.066) | −0.059 (−0.200, −0.074) | −0.108 (−0.319, −0.184) |
Bolded values mean statistical significance (95% confidence interval excluding zero).
a
Age, sex, race/ethnicity, and education were adjusted in the model.