Table 2. Predicted spirometry values for the Brazilian population(16) and those generated by the Global Lung Function Initiative (GLI) equation(19,21) for combinations of age and height in males.

Variable	Age, years	Height, cm	Pereira et al.(16)	GLI(19,21)
FVC, L	25	175	5.35	5.18
	50	170	4.58	4.48
	75	165	3.80	3.44
LL	25	175	4.45	4.19
	50	170	3.68	3.50
	75	165	2.90	2.52
FEV1, L	25	175	4.50	4.35
	50	170	3.69	3.56
	75	165	2.90	2.61
LL	25	175	3.74	3.51
	50	170	2.93	2.78
	75	165	2.14	1.85
FEV1/FVC	25	175	0.85	0.85
	50	170	0.81	0.80
	75	165	0.77	0.76
LL	25	175	0.77	0.73
	50	170	0.73	0.69
	75	165	0.69	0.62

^LL: lower limit.