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Table 3 Trend of the headache days by the duration of onabotulinumtoxin150 units therapy

From: OnabotulinumtoxinA in chronic migraine: is the response dose dependent?

 

Number of the headache days

Number of the severe headache days

Patients who just had 3 rounds of onabotulinumtoxinA 150 units before the increase to 200 units (n = 22)

 Baseline (36 weeks before the increase)

25.86 ± 5.45

13.73 ± 8.54

 24 weeks before the increase

19.41 ± 9.49

8.59 ± 9.11

 12 weeks before the increase

17.40 ± 11.13

7.27 ± 9.15

 Day of increase to 200 Units

15.95 ± 11.02

6.59 ± 6.90

 12 weeks after the increase

15.09 ± 12.09

4.23 ± 5.77

 24 weeks after the increase

13.59 ± 10.89

4.27 ± 3.99

 36 weeks after the increase

14.77 ± 11.53

4.86 ± 4.11

Patients who had less than 8 rounds of onabotulinumtoxinA 150 units before the increase to 200 units (n = 92)

 Baseline

24.84 ± 6.13

14.26 ± 8.38

 36 weeks before the increase

17.54 ± 10.90

6.92 ± 7.07

 24 weeks before the increase

15.58 ± 11.53

5.74 ± 7.13

 12 weeks before the increase

14.89 ± 11.22

5.08 ± 6.42

 Day of increase to 200 units

14.36 ± 11.64

5.17 ± 5.92

 12 weeks after the increase

12.86 ± 11.36

4.10 ± 4.90

 24 weeks after the increase

12.81 ± 11.36

3.47 ± 4.11 **

 36 weeks after the increase

11.79 ± 11.47 *

3.83 ± 4.32 **

Patients who had at least 8 rounds of onabotulinumtoxinA 150 units before the increase to 200 units (n = 83)

 Baseline

26.97 ± 5.04

16.25 ± 7.36

 36 weeks before the increase

10.53 ± 9.48

4.72 ± 6.34

 24 weeks before the increase

11.37 ± 9.77

5.16 ± 6.33

 12 weeks before the increase

12.40 ± 9.93

5.59 ± 6.59

 Day of increase to 200 units

12.79 ± 9.77

6.67 ± 7.48

 12 weeks after the increase

10.79 ± 9.52 *

4.59 ± 5.59 **

 24 weeks after the increase

11.90 ± 9.94

4.23 ± 5.76 ***

 36 weeks after the increase

10.16 ± 9.57 **

4.22 ± 5.47 **

  1. Data presented as mean ± SD; * P < 0.05, ** P < 0.01, *** P < 0.001 for the paired t-test compared to the day of increase to 200 units