Table 1 Descriptive statistics
From: Association between pulmonary function and peak oxygen uptake in elderly: the Generation 100 study
Males n = 729 | Females n = 714 | |
|---|---|---|
Age | 72.8 ± 2.1 | 72.9 ± 2.1 |
Height (cm) | 176.9 ± 5.9 | 163.4 ± 5.3 |
Weight (kg) | 82.5 ± 11.3 | 68.4 ± 10.9 |
Body mass index (kg/cm2) | 26.3 ± 3.2 | 25.6 ± 3.8 |
Body-fat percentage | 25.5 ± 6.3 | 34.7 ± 7.0 |
Resting heart rate (beats per minute) | 62.7 ± 11.2 | 66.8 ± 10.0 |
Physical activity index | 9.3 ± 8.6 | 8.0 ± 8.7 |
Self-reported heart disease (% yes) (MI, angina or atrial fibrillation) | 18.6 % | 5.5 % |
Self-reported lung disease (% yes) (asthma, chronic bronchitis, emphysema, chronic obstructive pulmonary disease) | 10.8 % | 12.5 % |
Smoking status: | ||
Never | 41.5 % | 54.2 % |
Former | 50.5 % | 37.4 % |
Current | 7.9 % | 8.4 % |
Pack years | 8.2 ± 14.2 | 4.9 ± 10.5 |
FEV1 (litres) | 3.13 ± 0.60 | 2.24 ± 0.37 |
FEV1 % of predicted | 94.0 ± 16.7 | 102.4 ± 15.9 |
FEV1/FVC (%) | 72.1 ± 8.1 | 73.4 ± 6.6 |
DLCO (mmol/min/kPa) | 9.04 ± 1.68 | 6.73 ± 1.14 |
DLCO % of predicted | 93.5 ± 16.0 | 86.3 ± 13.5 |
DLCO/VA (mmol/min/kPa/l) | 1.37 ± 0.22 | 1.40 ± 0.20 |
DLCO/VA % of predicted | 93.7 ± 18.2 | 84.8 ± 11.9 |
Peak oxygen uptake (ml/min/kg) | 31.3 ± 6.7 | 26.1 ± 5.0 |
Respiratory Exchange Ratio at peak work | 1.14 ± 0.09 | 1.10 ± 0.09 |
Peak heart rate (bpm) | 156.7 ± 17.7 | 156.5 ± 15.9 |
Ventilation at peak exercise (litres) | 96.4 ± 21.2 | 61.2 ± 12.5 |