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Table 2 Lung function in the study population

From: Regional differences in prediction models of lung function in Germany

  ECRHS-I (N = 1162) KORA C (N = 1088) SHIP-1 (N = 1809) Total
FEV1 (l) 3.6 ± 0.9 3.5 ± 0.8 3.3 ± 0.9 3.4 ± 1.0
FVC (l) 4.4 ± 1.1 4.3 ± 1.1 3.9 ± 1.0 4.1 ± 1.1
PEF (l/s) 8.2 ± 3.1 8.0 ± 2.4 7.3 ± 2.1 7.7 ± 2.5
FEV1/FVC 0.81 ± 0.07 0.83 ± 0.08 0.85 ± 0.06 0.83 ± 0.07
  1. Mean values ± standard deviation are given. FEV1: forced expiratory volume in one second; FVC: forced vital capacity; PEF: peak expiratory flow rate;