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Table 4 Number of adverse events recorded after drug assumption (dataset = 92 patients and 264 treatments)

From: Comparison of tolerability and efficacy of a combination of paracetamol + caffeine and sumatriptan in the treatment of migraine attack: a randomized, double-blind, double-dummy, cross-over study

Adverse events

Total

Treatments

PCF

SUM

N

%

N

%

N

%

0 (none)

125

47.3

69

52.7

56

42.1

1

72

27.2

32

24.5

40

30.1

2

40

15.1

18

13.6

22

16.5

3

10

3.9

4

2.7

6

4.5

4

14

5.3

8

6.4

6

4.5

5

2

0.8

  

2

1.6

6

1

0.4

  

1

0.7

Total

264

100.0

131

100.0

133

100.0

  1. t test: p = 0.156, between treatments