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Mean values of PDQ-39 domains. HRQoL was assessed by using the PDQ-39. PDQ-39 is composed of 39 items grouped in 8 subscales: (1) mobility, (2) activities of daily living, (3) emotional well-being, (4) stigma, (5) social support, (6) cognition, (7) communication, and bodily discomfort. The PDQ-39 SI is an overall score calculated from these domains, with 0 indicating the best HRQoL and 100 the worst
