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Table 7 HIT-6 scores before and after treatment in patients with medication overuse

From: Does analgesic overuse matter? Response to OnabotulinumtoxinA in patients with chronic migraine with or without medication overuse

Outcome

Patients (N)

Before treatment

Mean (SD)

After treatment

Mean (SD)

Change

Mean (95 % CI)

P value

HIT6 score

178

68.2 (5.1)

61.4 (17.8)

−6.8 (−8.0, −5.6)

<0.001