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Table 2 LLN using NHANESIII, ECSC93, and GLI12 reference equations

From: Reference values for spirometry in elderly individuals: a cross-sectional study of different reference equations

    NHANESIII ECSC93 GLI12
  n Absolute values Mean (SD) Mean (SD) Mean (SD)
Total
 FVC (l) 260 1.9 (0.71) 1.6 (0.56) 1.3 (0.61) 1.7 (0.46)
 FEV1 (l) 260 1.4 (0.54) 1.1 (0.43) 0.9 (0.46) 1.3 (0.32)
 FEV1/FVC (%) 260 70.9 (10.47) 62.7 (1.57) 71.9 (7.47) 61.5 (1.75)
Female
 FVC (l) 181 1.7 (0.51) 1.3 (0.36) 0.95 (0.33) 1.5 (0.20)
 FEV1 (l) 181 1.2 (0.42) 0.9 (0.28) 0.7 (0.30) 1.1 (0.16)
 FEV1/FVC (%) 181 72.03 (9.75) 63.3 (1.24) 76.9 (0.11) 62.0 (1.40)
Male
 FVC (l) 79 2.5 (0.80) 2.1 (0.57) 2.0 (0.49) 2.3 (0.35)
 FEV1 (l) 79 1.7 (0.64) 1.5 (0.46) 1.4 (0.41) 1.7 (0.28)
 FEV1/FVC (%) 79 68.3 (11.63) 61.5 (1.57) 60.7 (1.36) 60.3 (1.88)