Table 3.
Characteristics and attention/alertness performance data for COPD patients who have been accepted and those who have been rejected as safe drivers.
| Rejected (n = 22) | Accepted (n = 13) | P | |
|---|---|---|---|
| AGE, (yrs) | 61.5 (6.6) | 55.7 (6.6) | 0.017 |
| Ht, (m) | 1.68 (0.1) | 1.73 (0.1) | 0.042 |
| Wt, (% pred) | 104.8 (92–117) | 111 (96–122) | NS |
| BMI | 26.1 (3.5) | 27.1 (4) | NS |
| FVC, (% pred) | 79.7 (18.7) | 96.8 (18.2) | 0.013 |
| FEV1, (% pred) | 35.4 (14.9) | 59.8 (24.5) | <0.001 |
| FEV1/FVC, % | 45.6 (13) | 63.2 (20.5) | 0.004 |
| IC, (% pred) | 75.6 (13.4) | 90.2 (20) | 0.015 |
| TLC, (% pred) | 101 (16.6) | 98.4 (10.4) | NS |
| RV, (% pred) | 133.4 (47.6) | 104.1 (20.3) | 0.044 |
| RV/TLC (%) | 47.9 (10.6) | 36.5 (8.9) | 0.003 |
| DLCO, (% pred) | 50.6 (15.3) | 74.8 (24) | <0.001 |
| PaO2 (mm Hg) | 72.2 (68.7–79.3) | 86 (74.9–99.3) | 0.005 |
| PaCO2 (mm Hg) | 41.6 (6) | 38.7 (4.13) | NS |
| SaO2, (%) | 94.2 (2.3) | 96.4 (1.9) | 0.006 |
| SpO2, (%) | 93.5 (2.4) | 96.5 (2.0) | <0.001 |
| mMRC, grade | 3 (2–4) | 1 (1–2.5) | 0.002 |
| IQ (% ile) | 75 (50–85) | 90 (80–95) | 0.009 |
| SA, (% ile) | 19.5 (17.1) | 36 (23.5) | 0.021 |
| RT-V, (% ile) | 63.3 (27.9) | 78.3 (14.1) | NS |
| MR-V, (% ile) | 57.5 (20.8) | 63.7 (14.5) | NS |
| Total RT-V, (% ile) | 61.3 (47–75) | 71.5 (65–80.5) | 0.047 |
| RT-A, (% ile) | 59.5 (27.4) | 73.2 (18.2) | NS |
| MR-A, (% ile) | 47.2 (28.9) | 52.6 (15.8) | NS |
| Total RT-A, (% ile) | 53.4 (24.3) | 62.9 (15) | NS |
| PA, (% ile) | 8.5 (5–16) | 43 (33.8–51.8) | <0.001 |
| TAVTMB, (% ile) | 9 (5–14) | 25 (21–30) | <0.001 |
Values are mean (SD) or median (range).
Abbreviations as in Table 3.