Table 1—

Subject characteristics and resting spirometry

Mean±sd (range)Predicted% predicted
Females n15
Males n16
Age yrs33±9 (18–56)
Weight kg68.6±12.5 (49.4–98.8)
Height cm169.9±9.0 (155–189.5)
BMI# kg·m223.6±3.1 (18.1–30.2)
BSA m21.77±0.19 (1.44–2.17)
FEV1 L3.93±0.67 (2.77–5.67)3.73±0.61 (2.73–5.00)106±11 (89–126)
FVC L4.89±0.84 (3.28–6.57)4.54±0.81 (3.43–6.23)109±12 (87–134)
FEV1/FVC0.81±0.06 (0.67–0.92)
PEF L·s−19.06±2.14 (5.71–13.90)8.52±1.54 (6.49–11.33)106±13 (84–140)
FEF25–75 L·s−14.86±1.19 (2.81–8.03)3.81±0.53 (2.74–4.77)127±23 (87–177)*
  • BMI: body mass index; BSA: body surface area; FEV1: forced expiratory volume in one second; FVC: forced vital capacity; PEF: peak expiratory flow; FEF25–75: mean forced expiratory flow between 25 and 75% FVC. #: calculated at weight (kg) divided by height (m); : calculated as 0.0097×(height in cm+weight in kg)−0.545. *: predicted value significantly different than measured value (p<0.05). Pulmonary function values in males calculated as a percentage of normal values predicted for males and females of same height and age from Hankinson et al. 31.