Table 2– Subdivision of subjects according to the level of forced expiratory volume in 1 s (FEV₁)/forced vital capacity (FVC) and FVC relative to their lower limits of normal (LLN)

	Male^#			Female^¶
	GLI 2012	ECSC/ERS	NHANES III	GLI 2012	ECSC/ERS	NHANES III
Obstruction	33.3	31.1	34.5	25.4	24.7	27.9
Obstruction and FEV₁<LLN	26.4	22.7	27.6	20.4	15.7	22.1
Obstruction and FVC>LLN	21.2	22.5	19.2	15.6	20.0	15.1
FVC<LLN	29.1	20.9	37.9	27.8	12.8	35.5
Restrictive pattern	17.1	12.3	22.6	18.1	8.1	22.8
Mixed pattern	12.1	8.6	15.3	9.7	4.7	12.7

Data are presented as %. All prevalence rates differ significantly (p<0.019) from Global Lung Initiative (GLI) 2012, except for overall obstruction between GLI 2012 and NHANES (National Health and Nutrition Examination Survey) III in males. Obstruction: FEV₁/FVC<LLN; restrictive pattern: FVC<LLN and FEV₁/FVC>LLN; mixed pattern: FEV₁/FVC<LLN and FVC<LLN; ECSC: European Community for Steel and Coal; ERS: European Respiratory Society. ^#: n=8870; ^¶: n=8707.