Table 1.
Participant Characteristics for All and Stratified by Frailty Status. Data Are Presented as Median (IQR), Mean ± SD or n (%)
| All |
Frailty |
|||
|---|---|---|---|---|
| n = 581 | Yes (n = 50) | No (n = 531) | p | |
| Age (years) | 74 (67–83) | 78 (72–83) | 74 (67–81) | .004 |
| Weight (kg) | 81.0 ± 13.3 | 82.0 ± 16.6 | 80.8 ± 13.0 | .557 |
| Height (m) | 1.70 ± 0.07 | 1.71 ± 0.06 | 1.72 ± 0.07 | .157 |
| Body mass index (kg/m2) | 27.4 ± 4.0 | 28.1 ± 5.3 | 27.2 ± 3.9 | .158 |
| Alcohol (>3 units/d) | 107 (18%) | 9 (18%) | 98 (18%) | .927 |
| Smoker | 41 (7%) | 5 (10%) | 36 (7%) | .395 |
| Socioeconomic statusa | .319 | |||
| Low | 261 (45%) | 27 (54%) | 234 (44%) | |
| Medium | 103 (18%) | 9 (18%) | 94 (18%) | |
| High | 217 (37%) | 14 (28%) | 203 (38%) | |
| Medication/supplements | ||||
| Antioxidantsb and thiazides | 161 (28%) | 14 (28%) | 147 (28%) | .962 |
| Xanthine oxidase inhibitors | 49 (8%) | 8 (16%) | 41 (8%) | .044 |
| Total antioxidant capacity (mM) | 5.292 ± 0.984 | 5.549 ± 0.929 | 5.268 ± 0.987 | .054 |
Note. aSocioeconomic status grouped into low (most disadvantaged), medium, and high (most advantaged). bAntioxidants included vitamins A, C, and E and multivitamins.