Characteristics of healthy younger and older adult controls
| . | Healthy younger . | Frail/prefrail older . | P . |
|---|---|---|---|
| Mean ± SD | n = 25 | n = 25 | |
| Age, y | 35 ± 5 | 78.0 ± 8.4 | <.001 |
| % Male | 43.48 | 27.27 | |
| BMI, kg/m2 | 25.82 ± 6.07 | 26.46 ± 5.77 | .671 |
| Hemoglobin, g/dL | 14.46 ± 1.42 | 13.04 ± 1.97 | .004 |
| Platelets, × 109/L | 245.71 ± 38.03 | 250.64 ± 72.83 | .792 |
| WBC, × 109/L | 5.35 ± 0.58 | 7.64 ± 1.59 | <.001 |
| INR | 1.03 ± 0.08 | 1.45 ± 0.44 | <.001 |
| Prothrombin time, s | 13.42 ± 0.58 | 16.07 ± 2.79 | <.001 |
| Aspirin use, % | 8.69 | 63.64 | |
| Statin use, % | 0 | 72.73 | |
| Clopidogrel use, % | 0 | 4.54 | |
| Warfarin use, % | 0 | 18.18 |
| . | Healthy younger . | Frail/prefrail older . | P . |
|---|---|---|---|
| Mean ± SD | n = 25 | n = 25 | |
| Age, y | 35 ± 5 | 78.0 ± 8.4 | <.001 |
| % Male | 43.48 | 27.27 | |
| BMI, kg/m2 | 25.82 ± 6.07 | 26.46 ± 5.77 | .671 |
| Hemoglobin, g/dL | 14.46 ± 1.42 | 13.04 ± 1.97 | .004 |
| Platelets, × 109/L | 245.71 ± 38.03 | 250.64 ± 72.83 | .792 |
| WBC, × 109/L | 5.35 ± 0.58 | 7.64 ± 1.59 | <.001 |
| INR | 1.03 ± 0.08 | 1.45 ± 0.44 | <.001 |
| Prothrombin time, s | 13.42 ± 0.58 | 16.07 ± 2.79 | <.001 |
| Aspirin use, % | 8.69 | 63.64 | |
| Statin use, % | 0 | 72.73 | |
| Clopidogrel use, % | 0 | 4.54 | |
| Warfarin use, % | 0 | 18.18 |
BMI, body mass index; INR, international normalized ratio; SD, standard deviation; WBC, white blood cell.