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. 2009 Jun 28;9:108. doi: 10.1186/1472-6963-9-108

Table 2.

Agreement between COPD categorisation by spirometry, and COPD categorisation by clinician

COPD category by FEV1 (% predicted) result
Clinician categorisation of COPD Normal Mild Moderate Severe Total
Normal 0 0 0 0 0
Mild 140 470 50 13 673
Moderate 17 218 235 13 483
Severe 5 23 105 97 230
Total 162 711 390 123 1386