Table 2.

Sensitivity, specificity, and Youden's index for LS and BI cutoff scores corresponding to mRS grades*.

Groups	Grades	LS				BI
		Scores	Sensitivity	Specificity	Youden's index	Scores	Sensitivity	Specificity	Youden's index
Community group	mRS 0	9	0.794	0.417	0.211	100	0.746	0.512	0.272
	mRS 1	9	0.782	0.562	0.344	100	0.689	0.680	0.369
	mRS 2	8	0.778	0.438	0.216	95	0.767	0.621	0.388
Domestic group	mRS 3	5	0.740	0.747	0.484	65	0.769	0.735	0.504
Bedridden group	mRS 4	5	0.797	0.818	0.615	10	0.851	0.781	0.632

*Youden's index = (Sensitivity + Specificity)-1. LS, Longshi Scale; BI, Barthel Index; mRS, modified Rankin Scale.