Table 1. Patient demographics and clinical characteristics for all participants and by peak inspiratory flow rate (PIFR) categories suboptimal PIFR (S-PIFR) and optimal PIFR (O-PIFR).
P values: S-PIFR vs O-PIFR.
| All | S-PIFR | O-PIFR | p value | |
|---|---|---|---|---|
| Patients, n (%) | 75 (100) | 42 (56) | 33 (44) | |
| Age, mean (SD) | 61.4 ±9.2 | 63.9 ±9.7 | 58.2 ±7.7 | 0.008 |
| Female, n (%) | 42 (56) | 26 (61.2) | 16 (48.4) | 0.34 |
| Race | ||||
| White, n (%) | 21 (28) | 11 (26.1) | 10 (30.3) | 0.79 |
| Other, n (%) | 54 (72) | 31 (73.8) | 23 (69.7) | |
| Current smoker, n (%) | 46 (61.3) | 25 (59.5) | 21 (63.6) | 0.81 |
| CAT score, mean (SD) | 25.6 ±7.6 | 25.0 ±8.3 | 26.3 ±6.8 | 0.44 |
| mMRC, mean (SD) | 2.7 ±0.9 | 2.9 ±0.8 | 2.6 ±1.0 | 0.13 |
| Coronary artery disease, n (%) | 16 (31.3) | 9 (21.4) | 7 (21.2) | 0.99 |
| Hypertension, n (%) | 51 (68) | 32 (76.1) | 19 (57.5) | 0.13 |
| Diabetes mellitus, n (%) | 26 (34.6) | 14 (33.3) | 12 (36.3) | 0.81 |
| Congestive heart failure, n (%) | 20 (26.6) | 13 (30.9) | 7 (21.2) | 0.43 |
| Asthma, n (%) | 18 (24) | 6 (33.3) | 12 (66.6) | 0.03 |
| Hand Grip Strength (kg), mean (SD) | 27.2 ±11.4 | 24.2 ±11.1 | 30.9 ±10.9 | 0.003 |
| PIFR (L/min), mean (SD) | 58.6 ±17.6 | 46.1 ±10.4 | 74.2 ±11.4 | 0.76 |