Table 1 Demographic, pulmonary functional, and BAL cell differential in 29 participants

Age (years)

62 (55–66)

Male

72%

Caucasian

82%

BMI

27 (24–30)

Smoking status

 Current

21%

 Former

48%

 Never

31%

Pack/year (Smokers)

43 (30–50)

PFT

 Spirometry^a

  FVC (% Predicted)

97 (85–104)

  FEV₁ (% Predicted)

94 (86–104)

  FEV₁/VC

73.4 (70.0-83.4)

 Lung volumes

  TLC (% Predicted)

102 (92–114)

  FRC (% Predicted)

90 (94–107)

  RV/TLC

0.32 (0.25-0.38)

 DLCO (% Predicted)

91 (80–105)

 IOS (R ₅ cmH ₂ O/L/s)

3.0 (2.5-3.4)

 eNO (ppb)

23.2 (10.9-34.2)

BAL cellsx10³/mL BALF

 Macrophages

164.0 (138.2-249.7)

 Lymphocytes

15.6 (8.3-26.6)

 Neutrophils

3.4 (2.6-5.6)

 Eosinophils

0.0 (0.0-1.6)