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Table 1 Characteristics of the entire dataset (N = 3669 patients) and of the English-speaking and Italian samples

From: Viability of a MSQOL-54 general health-related quality of life score using bifactor model

  English-speaking (N = 2064) Italian (N = 1605) Total sample (N)
Women (%) 1704 (83) 996 (62) 2700 (74)
Mean age in years, SD (range) 46.1, 10.5 (18–87) 40.9, 10.8 (18–79) 43.8, 10.9 (18–87)
Mean years from MS diagnosis, SD (range) 9.0, 7.3 (1–42) 4.9, 7.8 (0–48) 7.2, 7.8 (0–48)
Median EDSS score (range) 2.5 (0–9.5) 2.5 (0–9.5)
PDDS (%)    
Mild disability 1110 (54) 1097 (69) 1110 (54)
Moderate disability 722 (35) 308 (19) 722 (35)
Severe disability 219 (11) 194 (12) 219 (11)
Mean MSQOL-54 PHC, SD (range) 57.7, 21.5 (3–100) 61.1, 20.2 (2–100) 59.2, 21.1 (1–100)
Mean MSQOL-54 MHC, SD (range) 66.6, 21.3 (1–100) 62.9, 20.7 (2–100) 65.0, 21.1 (1–100)
  1. EDSS, Expanded Disability Status Scale; MSQOL-54, Multiple Sclerosis Quality of Life-54; PDDS, Patient Determined Disease Steps; PHC/MHC, Physical and Mental Health Composite; SD standard deviation