Table 2.
Characteristics of subjects by event-related distress levela
| Category | Overall (n = 181) | No stressor (n = 80) | Low event-related distress (n = 65) | High event-related distress (n = 36) | P |
| Age (years; n = 181) | 52.6 ± 14.2 | 57.3 ± 13.9 | 49.2 ± 13.6 | 48.2 ± 16.0 | <0.001bc |
| Male (%; n = 181) | 61.9 | 71.3 | 55.4 | 52.8 | 0.07 |
| White (%; n = 181) | 65.8 | 67.5 | 64.6 | 63.9 | 0.9 |
| Married (%; n = 179) | 59.2 | 62.8 | 55.4 | 58.3 | 0.7 |
| 12th grade/high school graduation or more (%; n = 179) | 91.6 | 85.9 | 95.4 | 97.2 | 0.07 |
| Employed full-time/part-time; student (%; n = 177) | 32.2 | 24.4 | 39.7 | 36.1 | 0.1 |
| Currently smoking (%; n = 181) | 13.8 | 15.0 | 9.2 | 19.4 | 0.3 |
| Kidney disease | 0.4 | ||||
| CKD Stages 4 and 5, not dialysis dependent (%; n = 91) | 50.3 | 50.0 | 55.4 | 41.7 | |
| CKD Stage 5, dialysis dependent (%; n = 90) | 49.7 | 50.0 | 44.6 | 58.3 | |
| eGFR (mL/min/1.73 m2; n = 85) | 18.7 ± 8.0 | 20.4 ± 8.4 | 17.3 ± 7.3 | 16.9 ± 8.1 | 0.2 |
| Medical comorbidities | |||||
| Diabetes mellitus (%; n = 181) | 37.6 | 46.3 | 35.4 | 22.2 | 0.04c |
| Cardiovascular disease (%; n = 179) | 31.3 | 39.2 | 26.6 | 22.2 | 0.1 |
| Short Form-36 score (n = 136) | |||||
| Physical Component Summary | 40.7 ± 6.6 | 41.1 ± 6.7 | 40.8 ± 6.0 | 39.6 ± 7.6 | 0.6 |
| Mental Component Summary | 44.3 ± 7.5 | 44.3 ± 7.6 | 45.8 ± 6.4 | 41.5 ± 8.8 | 0.06 |
a
Continuous variables expressed as mean ± SD. Continuous variables were tested with ANOVA; categorical variables were tested with chi-square or Fisher’s exact tests, where appropriate. eGFR, estimated glomerular filtration rate.
b
No stressor versus low event-related distress P < 0.05 in pairwise comparison.
c
No stressor versus high event-related distress P < 0.05 in pairwise comparison.