Cognition was significantly related to other functional outcomes , TICS-M with dependency ( modified Rankin Scale , rs = -.562 , P < .001 ) ; disability ( Barthel Index , rs = .577 , P < .001 ) ; mood ( Zung Depression Score , rs = -.542 , P < .001 ) ; and quality of life ( Euro Quality of life-5 Descriptor , rs = .519 , P < .001 ) .