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. 2011 Sep 2;31(14):1428–1438. doi: 10.1177/0333102411419681

Table 2.

Differences from baseline in efficacy variables at different points in time for the intention-to-treat (ITT) and the per-protocol (PP) populations

Variable ITT
PP
Relaxation Exercise Topiramate p-value Relaxation Exercise Topiramate p-value
Attack frequency (n/month)
 Treatment period −0.97 ± 0.23 −0.65 ± 0.23 −0.70 ± 0.23 0.57 −1.17 ± 0.25 −0.66 ± 0.26 −0.95 ± 0.28 0.37
 Last month of treatment −0.83 ± 0.31 −0.93 ± 0.31 −0.97 ± 0.31 0.95 −1.03 ± 0.35 −0.90 ± 0.36 −1.27 ± 0.39 0.77
 3 months after treatment −0.94 ± 0.28 −0.98 ± 0.28 −0.68 ± 0.28 0.71 −1.15 ± 0.31 −0.87 ± 0.32 −0.87 ± 0.34 0.78
 6 months after treatment −0.95 ± 0.27 −0.86 ± 0.27 −0.73 ± 0.27 0.85 −1.15 ± 0.30 −0.80 ± 0.31 −0.96 ± 0.34 0.72
Migraine days (n/month)
 Treatment period −1.40 ± 0.43 −1.15 ± 0.43 −1.49 ± 0.43 0.85 −1.57 ± 0.60 −1.89 ± 0.58 −3.15 ± 0.63 0.16
 Last month of treatment −1.32 ± 0.55 −1.98 ± 0.55 −2.13 ± 0.54 0.54 −1.65 ± 0.44 −1.06 ± 0.45 −2.18 ± 0.49 0.25
 3 months after treatment −1.47 ± 0.55 −2.23 ± 0.55 −2.08 ± 0.54 0.59 −1.75 ± 0.57 −2.14 ± 0.58 −3.05 ± 0.63 0.31
 6 months after treatment −1.83 ± 0.52 −1.71 ± 0.52 −1.98 ± 0.51 0.93 −2.17 ± 0.53 −2.03 ± 0.54 −2.86 ± 0.59 0.55
Mean pain intensity (VAS 0–100)
 Treatment period −3.1 ± 2.3 −4.7 ± 2.3 −11.1 ± 2.3 0.04a −3.6 ± 2.6 −5.1 ± 2.7 −14.9 ± 2.9 0.01a
 Last month of treatment −6.2 ± 3.2 ⊟8.8 ± 3.2 −14.5 ± 3.2 0.18 −7.1 ± 3.7 −10.2 ± 3.7 −20.0 ± 4.1 0.06
 3 months after treatment −5.1 ± 3.5 −7.1 ± 3.5 −13.7 ± 3.4 0.19 −5.9 ± 4.0 −8.0 ± 4.1 −18.7 ± 4.5 0.09
 6 months after treatment −4.6 ± 3.6 −5.9 ± 3.6 −11.3 ± 3.5 0.37 −5.3 ± 4.2 −7.3 ± 4.3 −15.2 ± 4.7 0.27
Acute medication use (doses/month)
 Treatment period −1.33 ± 0.54 −1.08 ± 0.56 −1.89 ± 0.54 0.57 −1.84 ± 0.77 −2.43 ± 0.82 −2.94 ± 0.88 0.64
 Last month of treatment −1.56 ± 0.65 −1.98 ± 0.68 −2.15 ± 0.65 0.81 −1.59 ± 0.64 −1.49 ± 0.68 −2.54 ± 0.73 0.52
 3 months after treatment −2.84 ± 0.54 −2.72 ± 0.55 −2.71 ± 0.54 0.98 −3.34 ± 0.59 −3.10 ± 0.63 −3.63 ± 0.68 0.85
 6 months after treatment −2.91 ± 0.52 −2.30 ± 0.53 −3.64 ± 0.52 0.20 −3.42 ± 0.54 −2.97 ± 0.57 −5.02 ± 0.62 0.05 a
Quality of life (points 1–100)
 After treatment 3.4 ± 1.9 5.7 ± 1.9 1.9 ± 1.9 0.37 4.3 ± 2.2 5.8 ± 2.2 2.9 ± 2.4 0.68
 3 months after treatment 3.1 ± 2.4 5.0 ± 2.3 2.4 ± 2.3 0.73 4.0 ± 2.7 4.9 ± 2.7 3.7 ± 3.0 0.95
 6 months after treatment 4.0 ± 2.2 5.5 ± 2.2 2.5 ± 2.2 0.62 4.9 ± 2.6 5.1 ± 2.6 3.7 ± 2.8 0.93
Level of physical activity (MET-minutes/week)
 After treatment 0 (−453 to 480) 277 (0–1107) 0 (0–403) 0.23 20 (−480 to 480) 318 (0–1080) 132 (0–633) 0.34
Sedentary (hours/day)
 After treatment 0 (−2 to 0) 0 (−2 to 0) 0 (0–0) 0.20 0 (−2 to 0) 0 (−2 to 0) 0 (0–1) 0.32
Oxygen uptake (ml/kg/min)
 After treatment 1.1 ± 1.0 3.9 ± 0.9 −0.4 ± 1.0 0.008a 0.9 ± 1.0 4.8 ± 1.2 −0.8 ± 1.2 0.002a

Values are least square means ± standard error or median (interquartile range). aSignificant result.