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Table 1 Patient baseline demographics and clinical characteristics

From: Validation and meaningful within-patient change in work productivity and activity impairment questionnaire (WPAI) for episodic or chronic migraine

Characteristics

Overall

N = 444

EM

n = 261

CM

n = 183

Age (years), mean (SD)

45.89 (11.81)

46.34 (11.35)

45.23 (12.44)

Gender (women), n (%)

381 (85.8%)

222 (85.1%)

159 (86.9%)

Years since migraine diagnosis, mean (SD)

23.34 (13.58)

22.52 (12.92)

24.52 (14.43)

Number of monthly migraine headache days, mean (SD)

13.12 (5.90)

9.30 (2.84)

18.58 (4.72)

WPAI absenteeism score*, mean (SD)

9.37 (17.85)

8.22 (15.65)

11.03 (20.57)

WPAI presenteeism score*, mean (SD)

42.75 (23.24)

38.70 (24.65)

48.70 (19.62)

WPAI overall work productivity loss score*, mean (SD)

46.86 (25.69)

42.42 (26.92)

53.29 (22.39)

WPAI non-work-related activity impairment score, mean (SD)

50.97 (23.91)

48.01 (24.96)

55.19 (21.71)

MSQ-RFR score, mean (SD)

45.05 (17.16)

48.05 (15.79)

40.77 (18.15)

MSQ-RFP score, mean (SD)

63.78 (19.15)

65.38 (18.78)

61.50 (19.49)

  1. *Scores were computed only for employed individuals
  2. Mean (SD) was calculated based on non-missing values. WPAI scores are presented as % as units
  3. EM was defined as 4 to 14 migraine headache days and < 15 headache days per 30-day period in the prospective baseline period. In the event that there were any patients with 4 to < 8 migraine headache days and 15–29 headache days per 30-day period in the prospective baseline period, they were considered to have episodic migraine
  4. CM was defined as 15–29 headache days per 30-day period in the prospective baseline period, of which at least 8 are migraine
  5. CM chronic migraine, EM episodic migraine, MSQ Migraine-Specific Quality of Life questionnaire, N total number of patients, PRO patient-reported outcome, RFP role function-preventive, RFR role function-restrictive, SD standard deviation, WPAI Work Productivity and Activity Impairment questionnaire