Table 5.

Likelihood ratio for different amounts of FVC for FVC < LLN along with FEV1/FVC≥LLN.

FVC%	Sensitivity%	Specificity%	Likelihood ratio
60	15.2	10.3	1.47
65	38.0	14.4	2.63
70	57.0	14.4	3.95
75	74.7	19.6	3.81
80	98.7	26.7	0.69
85	100	30.9	3.23