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Table 3 Descriptive statistics for respondents with chronic posttraumatic headache/cervicogenic headache vs. headache attributed to chronic rhinosinusitis. Number (%) unless stated otherwise

From: Excessive daytime sleepiness in secondary chronic headache from the general population

  Posttraumatic/cervicogenic headache (N = 47) Rhinosinusitis headache (N = 39) p-value
Age, mean (SD) 38.9 (4.2) 38.9 (3.8) 0.97
Gender    0.09
 Female 34 (72) 34 (87)  
 Male 13 (28) 5 (13)  
Education, highest attained    0.37
  < 11 years 9 (19) 6 (15)  
 11–15 years 27 (57) 25 (64)  
  > 15 years 11 (24) 8 (21)  
Body mass index (kg/m2), mean (SD) 27.6 (5.3)a 25.5 (4.5)b 0.08
Daily smoker    0.61
 No 16 (36) 16 (41)  
 Yes 29 (64) 23 (59)  
Concomitant migraine    0.23
 No 29 (62) 19 (49)  
 Yes 18 (38) 20 (51)  
Medication-overuse    0.65
 No 24 (51) 18 (46)  
 Yes 23 (49) 21 (54)  
Number of headache days past 3 months    0.001
  < 90 (Q1-Q3) 24 (53) 32 (89)  
  ≥ 90 (Q4) 21 (47) 4 (11)  
MIDAS score (grade)    0.038
 0–20 (Little/no to moderate disability) 9 (22) 15 (45)  
  > 20 (Severe disability) 31 (78) 18 (55)  
Epworth sleepiness scale score, mean (SD) 6.8 (4.5) 7.3 (4.2) 0.60
Excessive daytime sleepiness (ESS score > 10)    0.63
 No 37 (79) 29 (74)  
 Yes 10 (21) 10 (26)  
  1. a n = 36, b n = 35