Table 3. Consistency of the Chinese version of the core Healthy Days measures (HRQOL-5).

Item	Cronbach αa	Change (%)
Overall construct	0.75	—b
General health status	0.77	+0.02
Days of poor physical health	0.73	–0.02
Days of poor mental health	0.67	–0.08
Days of usual activity limitation	0.64	–0.11
Days of self-care limitation	0.69	–0.06

^aBased on standardized items if item was removed.

^bNot applicable.