Effect of small airway dysfunction on large airway function parameters in elderly adults

BMC Geriatrics

Table 5 The predictive performance of SVC-FVC and FVC/SVC

Variables	AUC (95% CI)	SE	P	Optimal cut-off value	Sensitivity	Specificity
SVC-FVC	0.631 (0.555, 0.707)	0.039	0.001	0.02	0.63	0.63
FVC/SVC	0.639 (0.563, 0.714)	0.039	0.001	0.99	0.64	0.63

SVC: slow vital capacity; FVC: forced vital capacity; AUC: area under curve; CI: confidence internal; SE: standard error

ISSN: 1471-2318