Table 2. Correlation between CRKS, FCCBS, CRAS, and continuous characteristics.

Variable	FCCBS (r (P))	CRAS (r (P))	CRKS (r (P))
Duration of care	−0.03(0.576)	−0.01(0.867)	0.03(0.603)
Weekly days of care	−0.11(0.033)*	0.02(0.725)	0.09(0.083)
Daily hours of care	0.13(0.011)*	−0.16(0.001)*	−0.15(0.002)*

* The P value≦0.05.

FCCBS: Family Caregiver Caring Behaviors scale; CRAS: Caregiver Reaction Assessment scale; CRKS: COPD-related Knowledge scale.