Table 1.
Demographics
| Subject | Smoking Status | Sex | Age (yr) | Smoking Pack-Years | PaO2/FiO2 | RUL Volume (cm3) |
|---|---|---|---|---|---|---|
| 1 | NS | F | 35 | 0 | 370 | 531 |
| 2 | NS | F | 18 | 0 | 427 | 544 |
| 3 | NS | F | 59 | 0 | 263 | 761 |
| 4 | NS | M | 46 | 0 | 308 | 738 |
| 5 | NS | M | 39 | 0 | 357 | 226 |
| 6 | NS | M | 49 | 0 | 242 | 431 |
| 7 | S | F | 62 | 40 | 493 | 775 |
| 8 | S | F | 66 | 40 | 313 | 329 |
| 9 | S | F | 35 | 18 | 291 | 774 |
| 10 | S | M | 32 | 13 | 262 | 859 |
| 11 | S | M | 44 | 10 | 293 | 252 |
| 12 | S | M | 63 | 60 | 379 | 706 |
| Overall, mean (SD) |
46 (15) | 15 (21) | 333 (75) | 577 (223) | ||
| NS, mean (SD) |
41 (14) | 0 (0) | 328 (70) | 538 (199) | ||
| S, mean (SD) |
50 (15) | 30 (20) | 339 (85) | 616 (258) | ||
| P value (NS vs. S) | 0.3 | * | 0.8 | 0.6 | ||
Definition of abbreviations: NS = nonsmoker; RUL = right upper lobe; S = smoker.
*
P value is not reported for smoking pack-years because the populations were selected to be different.