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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
  1. Definition of abbreviations: MI = myocardial infarction; FEV1 = forced expiratory volume in 1 s; FEV1/FVC = FEV1 divided by forced vital capacity; DLCO – diffusing capacity of the lung for carbon monoxide; DLCO/VA – DLCO corrected for estimated alveolar volume. Values are given as percentage or mean ± standard deviation