Table 2

Descriptive statistics, ceiling effects and internal consistency reliability of CDQ-24 subscales in Stage III of the study

CDQ-24 subscale (no. of items)Cervical dystonia (n = 139) Mean (SD)Blepharospasm (n = 92) Mean (SD)Total sample (n = 231) Mean (SD)% scoring min. (0)†% scoring max. (100)†Internal consistency (Cronbach’s α)
*p<0.01 cervical dystonia v blepharospasm (Mann–Whitney U test).
†0, best quality of life; 100, worst quality of life.
Stigma (6)45.6 (26.4)36.3 (23.2)*41.9 (25.5)2.21.30.89
Emotional wellbeing (5)36.2 (24.3)32.4 (24.5).34.7 (24.4)9.10.90.88
Pain (3)44.1 (27.0)24.5 (24.5)*36.3 (27.6)17.81.70.79
Activities of daily living (6)38.3 (23.1)43.3 (23.0)40.3 (23.1)3.00.40.77
Social/family life (4)22.7 (23.7)15.5 (19.4)19.8 (22.3)34.80.40.85
Total score (24)37.8 (20.4)32.3 (18.2)35.6 (19.7)0.00.00.94