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Table 1 Age, cumulative cigarette smoke consumption, and lung function data of all subjects of the study.

From: Motion and twisting of magnetic particles ingested by alveolar macrophages in the human lung: effect of smoking and disease

  Healthy SAR IPF COB
AGE (years) 54 +/- 7 48 +/- 14 49 +/- 15 60 +/- 8
NS/S/XS 9/8/0 10/2/3 5/4/3 1/3/14
Pack-years (PY) 49 +/- 18 18 +/- 13 15 +/- 6 40 +/- 25
FEV1 (%pred.) 105 +/- 15 93 +/- 15 (*) 82 +/- 23 (*) 72 +/- 28 (**)
FEV1/VC (%pred.) 91 +/- 10 94 +/- 6 (ns) 94 +/- 15 (ns) 69 +/- 19 (**)
RAW (kPaL-1s-1) 0.22 +/- 0.08 0.16 +/- 0.1 (ns) 0.22 +/- 0.14 (ns) 0.28 +/- 0.16 (ns)
RV % TLC 32 +/- 6 33 +/- 6 (ns) 37 +/- 12 (ns) 45 +/- 10 (**)
TGV (%pred.) 112 +/- 25 89 +/- 23 (*) 91 +/- 33 (ns) 119 +/- 34 (ns)
VC (%pred.) 118 +/- 13 102 +/- 17 (**) 86 +/- 19 (**) 103 +/- 25 (ns)
MEF75 (%pred.) 107 +/- 35 92 +/- 17 (ns) 90 +/- 45 (ns) 52 +/- 37 (**)
MEF50 (%pred.) 82 +/- 27 75 +/- 24 (ns) 71 +/- 40 (ns) 32 +/- 25 (**)
MEF25 (%pred.) 62 +/- 27 48 +/- 22 (ns) 51 +/- 27 (ns) 22 +/- 18 (**)
TL,CO (%pred.) 107 +/- 33 98 +/- 14 (ns) 82 +/- 13 (**) 92 +/- 21 (ns)
  1. Relative values of lung function parameters are given as a percentage of predicted values (% pred., [27]). Values are presented as mean +/- SD. Healthy: healthy subjects, age 40 – 65 years, SAR: patients with sarcoidosis, IPF: patients with idiopathic pulmonary fibrosis, COB: patients with chronic obstructive bronchitis. FEV1: forced expiratory volume in one second, VC: vital capacity, Raw: airway resistance, RV: residual volume, TLC: total lung capacity, TGV: thoracic gas volume, MEF25, MEF50, MEF75: maximal expiratory flow at 25, 50 and 75% of VC, respectively, TL,CO: transfer factor of the lung for carbon monoxide; ns: not significant; *: p < 0.05; **: p < 0.01.