Table 1.
Baseline Characteristics of White Men With Chronic SCI
| Characteristics | Level and Severity of Injury |
Total (N=330) | ||
|---|---|---|---|---|
| Quadriplegia: Cervical Motor Complete and AIS Grade C (n=94) | Paraplegia: Other Motor Complete and AIS Grade C (n=155) | All AIS Grade D (n=81) | ||
| Age (y) | 47.8±14.0 | 50.4±15.3 | 54.3±14.2 | 50.6±14.8 |
| Height (cm) | 179.1±7.3 | 177.2±7.4 | 177.2±7.6 | 177.7±7.4 |
| BMI (kg/m2) | 25.2±4.9 | 26.2±5.0 | 27.8±5.2 | 26.3±5.1 |
| Obese (BMI >30kg/m2) | 15 (16.0) | 35 (22.6) | 20 (24.7) | 70 (21.2) |
| Years postinjury | 17.3±12.5 | 19.2±13.0 | 14.2±12.5 | 17.4±12.9 |
| Smoking | ||||
| Current | 19 (20.2) | 32 (20.6) | 32 (39.5) | 83 (25.2) |
| Ex | 43 (45.7) | 64 (41.3) | 28 (34.6) | 135 (40.9) |
| Never | 32 (34.0) | 59 (38.1) | 21 (25.9) | 112 (33.9) |
| Lifetime pack-years (for ever smokers) | 25.5±24.6 | 29.2±24.4 | 33.4±22.0 | 29.3±23.9 |
| Medical history and symptoms | ||||
| Chest injuries | 18 (19.1) | 57 (36.8) | 17 (21.0) | 92 (27.9) |
| Chest operations | 9 (9.6) | 28 (18.1) | 13 (16.1) | 50 (15.2) |
| MD-diagnosed COPD | 3 (3.2) | 9 (5.8) | 6 (7.4) | 18 (5.5) |
| Physician-diagnosed asthma | 4 (4.3) | 12 (7.7) | 6 (7.4) | 22 (6.7) |
| Chronic cough | 10 (10.6) | 22 (14.2) | 18 (22.2) | 50 (15.2) |
| Chronic phlegm | 16 (17.0) | 25 (16.1) | 22 (27.2) | 63 (19.1) |
| Persistent wheeze | 5 (5.3) | 21 (13.6) | 22 (27.2) | 48 (14.6) |
| Any wheeze | 42 (44.7) | 65 (41.9) | 48 (59.3) | 155 (47.0) |
| NYHA class I or II dyspnea | 12 (12.8) | 6 (3.9) | 4 (4.9) | 22 (6.7) |
| Pulmonary function data | ||||
| TLC (L) | 5.55±1.14 | 6.21±1.07 | 6.27±1.20 | 6.04±1.16 |
| FRC (L) | 2.95±0.90 | 3.02±0.83 | 3.08±0.76 | 3.01±0.84 |
| RV (L) | 2.34±0.82 | 2.07±0.69 | 2.13±0.57 | 2.16±0.71 |
| ERV (L) | 0.62±0.39 | 0.95±0.50 | 0.96±0.53 | 0.85±0.50 |
| Percentage-predicted TLC | 78.7±15.2 | 89.9±13.8 | 90.5±13.7 | 86.8±15.0 |
| Percentage-predicted FRC | 82.4±25.7 | 85.7±21.8 | 86.6±18.9 | 85.0±22.3 |
| Percentage-predicted RV | 117.2±43.7 | 102.5±31.8 | 100.9±21.8 | 106.3±34.3 |
| Percentage-predicted ERV | 40.4±27.4 | 64.1±33.1 | 64.9±33.3 | 57.5±33.3 |
| Percentage-predicted FEV1 | 63.0±15.7 | 84.1±16.4 | 81.4±16.1 | 77.3±18.5 |
| Percentage-predicted FVC | 60.7±15.4 | 83.2±15.2 | 83.3±15.2 | 76.7±18.3 |
| FEV1/FVC | 81.7±9.9 | 78.5±8.0 | 75.0±8.7 | 78.6±9.1 |
| MIP | 74.6±28.9 | 96.2±33.8 | 83.5±31.9 | 86.9±33.2 |
| MEP* | 73.8±28.2 | 108.9±45.5 | 125.9±48.5 | 103.3±46.6 |
NOTE. Values are mean ± SD or number (%).
Abbreviations: MD, physician; NYHA, New York Heart Association.
*
MEP has 109 missing values (29 quadriplegic, 61 paraplegic, 19 all grade D).