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Table 2 Headache Features and Characteristics of Respondents with Migraine According to Medication Overuse

From: Factors associated with acute medication overuse in people with migraine: results from the 2017 migraine in America symptoms and treatment (MAST) study

  Not Overusing Medication n = 11,542 Overusing Medication n = 2107 Total Sample n = 13,649 Chi P-value
MHDsa (mean ± SD) 4.3 ± 4.3 12.9 ± 8.6 5.6 ± 6.0 69.7 < 0.001
MHD category, n (%)
 0–4 8054 (69.8) 451 (21.4) 8505 (62.3) 2830.498 < 0.001
 5–9 2351 (20.4) 380 (18.0) 2731 (20.0)   
 10–14 656 (5.7) 417 (19.8) 1073 (7.9)   
  ≥ 15 481 (4.2) 859 (40.8) 1340 (9.8)   
Cutaneous allodynia, n (%)
 No 7208 (62.5) 976 (46.3) 8184 (60.0) 192.380 < 0.001
 Yes 4334 (37.5) 1131 (53.7) 5465 (40.0)   
MSSSa (scale of 0–21) 16.4 ± 3.0 17.8 ± 2.7 16.6 ± 3.0 19.433 < 0.001
Pain intensitya (scale of 0–10) 6.5 ± 1.6 7.4 ± 1.6 6.7 ± 1.6 22.7 < 0.001
  1. MHD monthly headache day, SD standard deviation, MSSS Migraine Symptom Severity Score
  2. aDetermined by independent-group t test
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