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Figure 3 | BMC Pulmonary Medicine

Figure 3

From: Evaluation of the global lung function initiative 2012 reference values for spirometry in a Swedish population sample

Figure 3

Normal distribution curves of a) FVC, b) FEV1 and c) FEV1/FVC based on observed GLI Z-score means and standard deviations among women. The figures illustrate observed values of Z-score mean and standard deviations (SD) among women. LLN=Lower Limit of Normal. X=proportion of subjects with values below LLN. Observed values of X are 0.4% for FEV1 (n=1), 0.8% for FVC (n=2) and 9.4% for FEV1/FVC (n=23).

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