TABLE 1.
CHARACTERISTICS OF COHORT AT STUDY ENTRY
| Motor Level and Severity of Injury
|
||||
|---|---|---|---|---|
| Quadriplegia Motor Complete and ASIA C | Paraplegia Motor Complete and ASIA C | ASIA D | Total | |
| Characteristics | (n = 44) | (n = 83) | (n = 47) | (n = 174) |
| Age, yr (SD) | 47.3 (13.0) | 49.4 (15.2) | 51.1 (13.2) | 49.3 (14.1) |
| Stature, cm (SD) | 178.8 (8.7) | 176.9 (7.3) | 178.7 (8.1) | 177.9 (7.9) |
| Body mass index, kg/m2 (%) | ||||
| Normal (<25) | 21 (47.7) | 34 (41.0) | 19 (40.4) | 74 (42.5) |
| Overweight (25 to <30) | 10 (22.7) | 30 (36.1) | 20 (42.6) | 60 (34.5) |
| Obese (⩾30) | 13 (29.6) | 19 (22.9) | 8 (17.0) | 40 (23.0) |
| Years postinjury (SD) | 18.8 (12.1) | 18.5 (13.5) | 12.7 (10.3) | 17.0 (12.6) |
| Smoking, n (%) | ||||
| Current smoker | 9 (20.5) | 12 (14.5) | 22 (46.8) | 43 (24.7) |
| Past smoker | 22 (50.0) | 34 (41.0) | 15 (31.9) | 71 (40.8) |
| Never smoker | 13 (29.6) | 37 (44.6) | 10 (21.3) | 60 (34.5) |
| Lifetime pack-years (for ever-smokers) (SD) | 26.3 (23.3) | 24.0 (21.9) | 35.0 (28.7) | 28.2 (24.9) |
| Chest injuries/operations, n (%) | 9 (20.5) | 33 (39.8) | 11 (23.4) | 53 (30.5) |
| COPD, n (%) | 5 (11.4) | 7 (8.4) | 5 (10.6) | 17 (9.8) |
| Asthma, n (%) | 4 (9.1) | 8 (9.6) | 5 (10.6) | 17 (9.8) |
| Heart disease, n (%) | 2 (4.6) | 4 (4.9) | 3 (6.4) | 9 (5.2) |
| Hypertension, n (%) | 7 (15.9) | 27 (32.5) | 9 (19.2) | 43 (24.7) |
| Chronic cough, n (%) | 8 (18.2) | 13 (15.7) | 13 (27.7) | 34 (19.5) |
| Chronic phlegm, n (%) | 10 (22.7) | 11 (13.3) | 18 (38.3) | 39 (22.4) |
| Any wheeze, n (%) | 20 (45.5) | 32 (38.6) | 25 (53.2) | 77 (44.3) |
| Persistent wheeze, n (%) | 6 (13.6) | 11 (13.3) | 12 (25.5) | 29 (16.7) |
| MIP*, cm H2O (SD) | 78.0 (27.5) | 102.0 (33.1) | 87.6 (32.4) | 91.6 (32.9) |
| FEV1, L (SD) | 2.6 (0.9) | 3.3 (0.8) | 3.2 (0.7) | 3.1 (0.8) |
| FVC, L (SD) | 3.3 (1.0) | 4.2 (0.9) | 4.3 (0.9) | 4.0 (1.0) |
| FEV1/FVC, % (SD) | 79.4 (10.8) | 79.3 (8.4) | 75.9 (8.1) | 78.4 (9.1) |
| Percent-predicted FEV1 (SD) | 64.9 (18.4) | 85.1 (15.7) | 80.8 (10.6) | 78.8 (17.3) |
| Percent-predicted FVC (SD) | 63.9 (16.9) | 83.7 (14.4) | 83.2 (12.0) | 78.6 (16.8) |
Definition of abbreviations: ASIA = American Spinal Injury Association; MIP = maximum inspiratory pressure.
*
Thirty-nine persons are missing baseline MIP.