Table 2.
Cognitive results of the sample, stratified by kidney disease status
| Variable; score range (when applicable) | Full Sample (N=263) | Kidney Disease absent (N=172) | Kidney Disease present (N=91) | P-value | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | Mean | SD | Median | N | Mean | SD | Median | N | Mean | SD | Median | ||
| Modified Mini Mental Status Exam (3MSE); 0–100 | 256 | 84.6 | 9.0 | 84.6 | 165 | 85.1 | 8.8 | 86 | 91 | 83.75 | 9.32 | 85 | 0.30 |
| Montreal Cognitive Assessment (MoCA); 0–30 | 261 | 19.9 | 3.9 | 19.9 | 171 | 20.2 | 3.9 | 21 | 90 | 19.27 | 3.73 | 19 | 0.05 |
| Rey Auditory Verbal Learning Test (RAVLT) Sum; 0–75 | 263 | 38.0 | 9.0 | 38.0 | 172 | 38.0 | 9.5 | 37 | 91 | 37.96 | 8.06 | 37 | 0.93 |
| RAVLT delayed recall; 0–15 | 259 | 5.4 | 3.2 | 5.4 | 170 | 5.4 | 3.2 | 5 | 89 | 5.43 | 3.02 | 6 | 0.64 |
| Stroop Time (seconds) to Complete 2 | 262 | 25.89 | 6.86 | 25.89 | 98 | 26.86 | 6.9 | 25 | 164 | 25.32 | 6.8 | 24 | 0.04 |
| Stroop Time (seconds) to Complete 3 | 256 | 57.4 | 18.4 | 57.4 | 167 | 55.5 | 17.1 | 53 | 89 | 60.94 | 20.39 | 58 | 0.01 |
| Stroop Errors 2 | 262 | 25.89 | 6.86 | 25.89 | 98 | 26.86 | 6.9 | 25 | 164 | 25.32 | 6.8 | 24 | 0.04 |
| Stroop Errors 3 | 258 | 3.4 | 6.3 | 3.4 | 169 | 3.0 | 5.9 | 1 | 89 | 4.09 | 7.04 | 1 | 0.06 |
| Stroop Interference (seconds; Trial 3-Trial 2) | 256 | 31.6 | 16.1 | 31.6 | 95 | 34.6 | 17.7 | 33.0 | 161 | 29.8 | 14.8 | 27.0 | 0.06 |
| Digit Symbol Copy (DSC); 0–133 | 262 | 48.1 | 15.9 | 48.1 | 171 | 50.2 | 15.6 | 48 | 91 | 44.22 | 15.91 | 45 | 0.004 |
| Verbal fluency for Animals | 262 | 15.7 | 4.6 | 15.7 | 171 | 15.9 | 4.6 | 16 | 91 | 15.31 | 4.55 | 15 | 0.36 |
| Center for Epidemiologic Studies-Depression Scale (CESD) | 262 | 8.0 | 5.3 | 8.0 | 171 | 7.6 | 5.2 | 7 | 91 | 8.56 | 5.62 | 8 | 0.21 |
| Brief Symptom Inventory-Anxiety score | 262 | 4.9 | 4.5 | 4.9 | 171 | 4.7 | 4.6 | 4 | 91 | 5.35 | 4.47 | 5 | 0.17 |