Anthropometric and spirometric data
| Non-hypoxaemic group(n = 9)Mean (SE) [95% CI] | Hypoxaemic group (n = 9)Mean (SE) [95% CI] | Statistical data(n = 18)Mean difference [95% CI]; p value | |
|---|---|---|---|
| BMI, body mass index; FEV1, forced expiratory volume in 1 second; FVC, forced vital capacity. | |||
| When a Mann-Whitney rank sum test based on group median difference was used, only the p value is reported. | |||
| Age (years) | 70 (2) [67 to 73] | 70 (2) [66 to 74] | –; p = 0.72 |
| Height (cm) | 166 (2) [162 to 170] | 168 (2) [163 to 173] | –; p = 0.42 |
| Weight (kg) | 69 (4) [61 to 78] | 75 (4) [64 to 84] | –; p = 0.29 |
| BMI (kg/m2) | 25 (1) [22 to 28] | 26 (1) [23 to 29] | +1 [−5 to +2]; p = 0.40 |
| FEV1 (l) | 0.83 (0.12) [0.56 to 1.10] | 0.98 (0.11) [0.65 to 1.31] | –; p = 0.31 |
| FEV1 (% predicted) | 33 (4) [24 to 42] | 37 (4) [26 to 48] | –; p = 0.42 |
| FVC (l) | 2.11 (0.18) [1.69 to 2.53] | 2.23 (0.20) [1.77 to 2.69] | –; p = 0.66 |
| FVC (% predicted) | 57 (4) [48 to 66] | 58 (4) [49 to 67] | –; p = 0.81 |
| FEV1/FVC (%) | 39 (3) [31 to 47] | 43 (3) [36 to 50] | +4 [−14 to +5]; p = 0.36 |