Table 2.

Cronbach’s alphas for survey subscales, after removal of problematic items.

	Items (n)	Cronbach’s alpha
Overall satisfaction*	3	0.70
Access	4	0.69
Staff communication†	5	0.68
General QoL	2	0.58‡
Mood	3	0.59‡
Confidence§	2	0.78
Facial appearance	3	0.72
Functional ability	3	0.75
Relationships with others	2	0.55‡

^*Item 7 removed.

^†Item 18 removed.

^‡Regarded as having ‘poor internal consistency’.²²

^§Item 29 removed.