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Table 1 Demographic and spirometric characteristics of sarcoidosis patients and control subjects. Values are expressed as mean ± SD, and age as median (range).

From: Th1/Th2 cytokine pattern in bronchoalveolar lavage fluid and induced sputum in pulmonary sarcoidosis

Characteristics Sarcoidosis Normal subjects
Number 21 10
Sex: Male/Female 12/9 5/5
Age, yr 46 (25–65) 39 (26–60).
Smokers/non smokers 18/3 0/10
FVC, % pred 93.1 ± 6.4 103 ± 13.7
FEV1, % pred 92.3 ± 6.6 101.1 ± 19
FEV1 / FVC, % pred 95.3 ± 5.9 100.3 ± 8.6
K CO % pred 82.3 ± 8.1 96 ± 6.3
Radiographic Stage (n) I: 8, II: 7,III: 6  
  1. Abbreviations: KCO = Carbon monoxide transfer coefficient, FVC % pred : Forced vital capacity % predicted, FEV1 % pred : Forced expiratory volume within the first second % predicted