Table 1.
Demographics and patient characteristics
| Characteristics | Entire cohort N = 37 | Short 6MWT distance N = 21 | Long 6MWT distance N = 16 | p value |
|---|---|---|---|---|
| Age, median (IQR), years | 71 (69–74) | 70 (69–73) | 72 (69–76) | 0.229 |
| Sex, n (%) | ||||
| Male | 5 (13) | 2 (10) | 3 (19) | 0.416 |
| Female | 32 (87) | 19 (90) | 13 (81) | |
| BMI, median (IQR) | 30.5 (26.6–32.3) | 31.6 (30.0–35.9) | 28.1 (26.3–30.6) | 0.067 |
| Height, m | 1.63 (1.89–1.69) | 1.62 (1.58–1.67) | 1.67 (1.61–1.70) | 0.160 |
| Weight, kg | 83 (72–89) | 84 (73–93) | 82 (72–85) | 0.348 |
| Race | ||||
| White | 1 (3) | 0 | 1 (6) | 0.245 |
| African American | 36 (97) | 21 (100) | 15 (94) | |
| Walking assist device (cane, walker) | 4 | 3 | 1 | 0.435 |
| Functional measures | ||||
| Short physical performance battery | 11 (10–12) | 11 (10–12) | 11 (10–12) | 0.181 |
| Physical frailty | ||||
| Not frail | 17 (46) | 9 (43) | 8 (50) | 0.224 |
| Pre-frail | 19 (51) | 11 (42) | 8 (50) | |
| Frail | 1 (3) | 1 (5) | 0 | |
| Charlson comorbidity score (IQR) | 1 (0–1) | 1 (0–2) | 0 (0–1) | 0.033 |
| Fall screen | 8 (22%) | 6 (29%) | 2 (13%) | 0.239 |
| Median gait cadence (steps/min) | 110 (102–114) | 106 (96–114) | 112 (108–118) | 0.009 |
BMI, body mass index.