FIMM FIMC FAI JSSD Age ZBI-8 -0.205 -0.249 -0.205 0.396 0.012 FIMM   0.61 0.739 -0.367 -0.036 FIMC     0.639 -0.49 0.099 FAI       -0.351 -0.144 JSSD         -0.45

Table 1: Rank correlation among ZBI, FIMM, FIMC, FAI, and JSSD. ZBI: Zarit Caregiver Burden Interview; ZBI-8: Japanese short version of ZBI; FIM: Functional Independence Measure; FIMM: motor subscore of the FIM; FIMC: cognitive subscore of the FIM; FAI: Frenchay Activities Index; JSSD: Japan Stroke Scale for Depression.