Table 1.

Subject demographics of all men and women

All MenAll WomenP Values
N1616
Age, yr26 ± 6.422 ± 2.70.024*
Height, cm173.3 ± 3.4172.5 ± 6.90.687
Weight, kg75.3 ± 11.867.9 ± 8.70.011*
Resting DlCO, ml·min−1·mmHg−133.5 ± 1.725.1 ± 1.1<0.001*
Resting Vc, ml89.3 ± 17.776.0 ± 21.20.022*
Resting Dm, ml·min−1·mmHg−171.4 ± 6.049.3 ± 4.80.003*
Hemoglobin, g/dl15.2 ± 1.012.8 ± 0.6<0.001*
TLC, liters6.94 ± 0.975.68 ± 0.56<0.001*
% Predicted TLC, liters100 ± 1393 ± 90.107
FEV1, liters4.46 ± 0.583.54 ± 0.39<0.001*
% Predicted FEV1, liters102 ± 1393 ± 110.061
FVC, liters5.62 ± 0.714.45 ± 0.46<0.001*
% Predicted FVC, liters107 ± 1298 ± 110.031*
FEV1/FVC0.80 ± 0.060.80 ± 0.070.928
RV, liters1.22 ± 0.441.18 ± 0.330.764
% Predicted RV, liters78 ± 2680 ± 220.846
% Predicted V̇o2peak, l/min119 ± 23131 ± 180.030*
% Predicted V̇o2peak, ml·kg−1·min−1118 ± 22112 ± 120.361
  • Values are means ± SD. DlCO, pulmonary diffusion capacity for carbon monoxide; Vc, pulmonary capillary blood volume; Dm, pulmonary membrane diffusing capacity; TLC, total lung capacity; FEV1, forced expired volume in 1 s; FVC, forced vital capacity; RV, residual volume; V̇o2peak, peak O2 consumption; Embedded Image, arterial oxygen saturation.

  • * Significantly different vs. female group (P < 0.05).