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Table 2 Participant characteristics, reported symptoms and consulting health professionals

From: Randomised controlled trial of food elimination diet based on IgG antibodies for the prevention of migraine like headaches

Characteristic Sham diet (n = 83) True diet (n = 84) Total (n = 167)
Gender (females) 72 (87%) 75 (89%) 147 (88%)
Age (years), mean (sd) 47.1 (10.1) 48.3 (11.0) 47.7 (10.6)
No. migraines past 4 weeks, median (IQR) 5.0 (4.0 to 8.0) 6.0 (3.0 to 10.0) 6.0 (3.0 to 9.0)
Regular medication use 65 (79%) 67 (80%) 132(80%)
Symptoms experienced    
   Intense throbbing headache 80 (96%) 80 (95%) 160 (96%)
   Increased sensitivity to light 70 (84%) 72 (86%) 142 (85%)
   Nausea 63 (76%) 69 (82%) 132 (79%)
   Increased sensitivity to sounds 55 (66%) 53 (63%) 108 (65%)
   Increased sensitivity to smells 42 (51%) 45 (54%) 87 (52%)
   Visual disturbance 44 (53%) 43 (51%) 87 (52%)
   Diarrhoea 21 (25%) 17 (20%) 38 (23%)
   Other 34 (41%) 43 (51%) 77 (46%)
Consulted healthcare professional a 83 (100%) 84(100%) 167(100%)
   GP 82 (99%) 84 (100%) 166 (99%)
   Hospital specialists 46 (55%) 42 (50%) 88 (53%)
   Headache clinic 28 (34%) 26 (31%) 54 (32%)
   CAM 49 (59%) 41(49%) 90 (54%)
   Other 45 (54%) 32 (38%) 77 (46%)
Consulted GP in last 3 months    
   Baseline (N = 167) 32 (39%) 37 (44%) 69 (41%)
   3 months (N = 139) 20 (28%) 15 (22%) 35 (25%)
  1. a This refers to any consultation