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Table 1 Summary of study characteristics

From: Risk of medication overuse headache across classes of treatments for acute migraine

Study

Country

Diagnosis classification

Study setting

No. patients

No. medication overuse headache

Analgesics

Ergots

Opioids

Triptans

Altieri et al. 2009 [11]

Italy

ICHD-2 [7]

Clinic

27

11

NR

NR

4

Ayzenberg et al. 2008 [12]

Germany

ICHD-2 [7]

Clinic

29

14

NR

NR

15

Biagianti et al. 2012 [13]

Italy

ICHD-2 Revised [8]

Clinic

52

26

NR

NR

20

Boe et al. 2007 [14]

Norway

ICHD-2 Appendix [7]

Clinic

100

20

1

NR

23

Coppola et al. 2010 [15]

Italy

ICHD-2 Appendix [7]

Clinic

29

10

NR

NR

9

Cupini et al. 2009 [16]

Italy

ICHD-2 Appendix [7]

Clinic

33

NR

1

NR

4

Di Lorenzo et al. 2009 [17]

Italy

ICHD-2 [7]

Clinic

107

18

NR

NR

29

Donnet et al. 2009 [18]

France

ICHD-2 [7]

Population

320

157

25

29

64

Dousset et al. 2013 [19]

France

ICHD-2 Appendix [7]

Clinic

42

8

1

0

9

Galli et al. 2011 [20]

Italy

ICHD-2Appendix [7]

Clinic

82

21

2

3

22

Gambini et al. 2013 [21]

Italy

ICHD-2 Revised [8]

Clinic

63

33

NR

NR

21

Gomez-Beldarrain et al. 2011 [22]

Spain

ICHD-2Revised [8]

Clinic

42

25

NR

NR

3

Hagen et al. 2009 [23]

Norway

ICHD-2 Appendix [7]

Clinic

56

18

NR

14

17

Jonsson et al. 2011 [6]

Sweden

ICHD-2 Appendix [7]

Population

799

517

7

33

66

Lorenzo et al. 2012 [24]

Italy

ICHD-2 Appendix [7]

Clinic

43

17

NR

NR

8

Pageler et al. 2008 [25]

Germany

ICHD-2 [7]

Clinic

20

1

3

NR

5

Perrotta et al. 2010 [26]

Italy

ICHD-2 [7]

Clinic

31

11

NR

NR

19

Perrotta et al. 2012 [27]

Italy

ICHD-2 [7]

Clinic

27

4

NR

NR

6

Radat et al. 2013 [28]

France

ICHD-2 [7]

Clinic

17

2

NR

2

4

Rainero et al. 2006 [29]

Italy

ICHD-2 [7]

Clinic

18

NR

2

NR

3

Relja et al. 2006 [30]

Italy

ICHD-2 [7]

Clinic

101

38

9

0

12

Rossi et al. 2006 [31]

Italy

ICHD-2 Revised [8]

Clinic

118

63

3

NR

24

Rossi et al. 2011 [32]

Italy

ICHD-2 Revised [8]

Clinic

100

57

1

NR

23

Sances et al. 2010 [33]

Italy

ICHD2 Revised [8]

Clinic

172

42

5

5

50

Sandrini et al. 2011 [34]

Italy

ICHD-2 Appendix [7]

Clinic

56

23

2

NR

20

Terrazzino et al. 2010 [35]

Italy

ICHD-2 Revised [8]

Clinic

227

79

2

1

32

Trucco et al. 2010 [36]

Italy

ICHD-2Revised [8]

Clinic

70

18

0

NR

9

Valguarnera et al. 2010 [37]

Italy

ICHD2 [7]

Clinic

95

20

2

2

30

Zeeberg et al. 2006 [38]

Denmark

ICHD2 Revised [8]

Clinic

216

63

8

12

43