| Group A: healthy | Group B: lung cancer | Group C: COPD | ||||||||
| All | Training | Test | p-value# | All | Training | Test | p-value# | Test | p-value¶ | |
| Subjects | 110 | 60 | 50 | 60 | 35 | 25 | 50 | |||
| Age yrs | 46.2±14.0 | 45.7±12.5 | 46.8±15.8 | ns | 63.6±10.3 | 65.3±9.8 | 62.6±11.1 | ns | 66.7±6.6 | <0.001 |
| Sex M/F | 26/74 | 28/72 | 24/76 | 78/22 | 71/29 | 88/12 | 56/44 | |||
| BMI kg·m−2 | 25.3±5.3 | 25.2±5.4 | 25.4±5.1 | 25.4±4.4 | 24.9±4.7 | 26.1±4.0 | 26.5±5.2 | ns | ||
| Current smoker | 14 (12.7) | 9 (15) | 5 (10.0) | 13 (21.7) | 7 (20.0) | 6 (24.0) | 13 (26.0) | |||
| History of cancer | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 3 (5) | |||
| Previous surgery | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 1 (1.7) | |||
| Previous intervention | 0 (0) | 0 (0) | 0 (0) | 34 (57) | 18 (51) | 16 (64) | 0 (0) | <0.001 | ||
| Sample age days | 23.6±19.0 | 22.3±21.1 | 25.2±16.1 | 38.5±22.4 | 39.4±22.5 | 37.3±22.8 | 8.1±3.8 | ns | ||
Data are presented as n, mean±sd, %/% or n (%), unless otherwise stated. COPD: chronic obstructive pulmonary disease; M: male; F: female; BMI: body mass index; ns: nonsignificant. #: training versus test; ¶: for comparison of test groups A, B and C.