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Table 3 Outcome from before and after treatment for 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

Median (IQR)

After treatment

Median (IQR)

Change

Median (95 % CI)

P value

Headache days

219

28 (24, 30)

20 (12, 26)

−7 (−8, −5)

<0.001

Migraine days

219

16 (12, 20)

9 (5, 15)

−6 (−7, −5)

<0.001

Crystal clear days

219

2 (0, 6)

10 (4, 18)

7 (5, 8)

<0.001

Painkiller days

219

20 (16, 28)

10 (5, 18)

−8 (−9, −6)

<0.001

Triptan days

219

6 (0, 12)

2 (0, 7)

0 (−1, 0)

<0.001

Days off work

14

4 (2, 8)

2 (0, 4)

−2 (−5, 0)

0.04