Table 6 SANRA scale for narrative reviews with the information regarding each item score and the total score for each

Agbetoy et al., 2022 [93]

0

0

1

2

0

0

3

Ahn et al., 2013 [75]

0

1

0

2

1

1

5

Amin et al., 2018 [76]

2

2

1

2

2

2

11

Barber et al., 2020 [77]

2

2

0

2

2

2

10

Becker et al., 2009 [78]

0

0

0

0

2

1

3

Busch V, Gaul C, Headache, 2008 [80]

1

2

1

2

2

2

10

Busch V, Gaul C, Schmerz, 2008 [79]

2

2

2

2

2

2

12

Daenen et al., 2015 [81]

1

2

0

2

1

0

6

Hindiyeh et al., 2013 [82]

1

1

0

1

1

1

5

Irby et al., 2016 [83]

2

1

0

2

2

1

8

Lippi et al., 2018 [84]

2

2

1

1

0

2

8

Mauskop et al., 2012 [85]

1

1

0

2

1

1

6

Meyer et al., 2018 [86]

1

1

0

2

2

2

8

Guarín-Duque et al., 2021 [87]

1

2

1

2

1

0

7

Patel et al., 2019 [88]

2

2

0

2

2

1

9

Robblee et al., 2019 [89]

1

2

0

2

2

1

8

Song et al., 2021 [90]

1

2

1

2

2

2

10

Tepper et al., 2015 [91]

1

2

0

1

2

2

8

Wells et al., 2019 [92]

0

2

1

2

2

2

9