FIGURE 4.

Change in Welsh Index of Multiple Deprivation (WIMD) quintile at entry in dataset and follow‐up for controls and dystonia cases by subtype: psychiatric diagnoses in cases (a; i), dystonia subtypes (c), and controls (a; iii); no psychiatric diagnoses in cases (a; ii) and controls (a; iv); psychiatric prescriptions in cases (b; i), dystonia subtypes (d), and controls (b, iii); and no psychiatric prescriptions in cases (b; ii) and controls (b; iv). BSP, blepharospasm; CD, cervical dystonia [Colour figure can be viewed at wileyonlinelibrary.com