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Table 1 Characteristics of patients with episodic migraine and chronic migraine: physician-reported data

From: Real-world treatment patterns and patient-reported outcomes in episodic and chronic migraine in Japan: analysis of data from the Adelphi migraine disease specific programme

Patient characteristic Cohort Total
(N = 977)
p-value
Episodic migraine
(N = 923)
Chronic migraine
(N = 54)
Age (years), mean (SD) 44.4 (14.6) 46.3 (13.2) 44.5 (14.5) 0.351a
Female, n (%) 711 (77.0) 43 (79.6) 754 (77.2) 0.658b
Body mass index (kg/m2), mean (SD) 21.7 (3.3) 21.9 (3.3) 21.7 (3.3) 0.627a
Smoking status, n (%)     0.200b
 Current smoker 105 (11.8) 9 (17.3) 114 (12.1)  
 Ex-smoker 90 (10.1) 2 (3.8) 92 (9.7)  
 Has never smoked 698 (78.2) 41 (78.8) 739 (78.2)  
No. of migraine headache days (average per month), mean (SD) 3.0 (2.8) 10.8 (7.8) 3.4 (3.8) < 0.001a
Also had tension-type headaches, n (%) 194 (21.0) 21 (38.9) 215 (22.0) 0.002b
Also had medication-overuse headaches, n (%) 36 (3.9) 14 (25.9) 50 (5.1) < 0.001c
Home circumstances, n (%)
 Lives with spouse/partner 515 (57.7) 34 (66.7) 549 (58.2) 0.205b
 Lives with other family 204 (22.8) 15 (29.4) 219 (23.2) 0.280b
 Lives with friends 1 (0.1) 0 1 (0.1) 1.000c
 Lives alone 190 (21.3) 5 (9.8) 195 (20.7) 0.049b
Employment status, n (%)     0.131c
 Full-time 433 (48.0) 23 (45.1) 456 (47.8)  
 Part-time 126 (14.0) 3 (5.9) 129 (13.5)  
 Student 35 (3.9) 1 (2.0) 36 (3.8)  
 Unemployed 104 (11.5) 8 (15.7) 112 (11.8)  
 Retired 12 (1.3) 3 (5.9) 15 (1.6)  
 Homemaker 187 (20.7) 13 (25.5) 200 (21.0)  
 Other 5 (0.6) 0 5 (0.5)  
Patient with any comorbidity, n (%) 455 (49.3) 29 (53.7) 484 (49.5) 0.529b
Total no. of comorbidities (max = 37)d, mean (SD) 1.8 (1.2) 2.1 (1.8) 1.8 (1.3) 0.378a
  1. Continuous variables are reported as mean (standard deviation [SD]) for non-missing observations; percentages are calculated as proportion of non-missing data
  2. at-test
  3. bChi-squared test
  4. cFisher’s exact test
  5. dMean number of comorbidities among patients with comorbidities
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