Table 2.

Item-total correlations, alpha if item deleted and intraclass correlation coefficients for individual MHQoL-7D items

	Total sample		Mental healthcare service users		Test–retest reliability subsample (N = 195)
Item	Item-total correlationa	α if item deleteda	Item-total correlationa	α if item deleteda	ICC
1—Self-image	0.69	0.81	0.67	0.79	0.73
2—Independence	0.57	0.83	0.54	0.81	0.60
3—Mood	0.69	0.81	0.65	0.79	0.70
4—Relationships	0.49	0.84	0.44	0.83	0.70
5—Daily activities	0.63	0.82	0.60	0.80	0.51
6—Physical health	0.48	0.84	0.45	0.83	0.77
7—Future	0.71	0.81	0.69	0.79	0.76

ICC Intraclass Correlation Coefficient

^aTime point = baseline

^bAll significant at P < 0.001 (2-tailed)