Table 2 Quality assessment based on the Effective Public Health Practice Project (EPHPP)

McCully et al. [22]

2

1

2

2

3

N/A

2

Moderate

Hamaoka et al. [26]

2

1

2

2

3

N/A

2

Moderate

Yoshida et al. [27]

2

2

2

2

2

1

1.83

Moderate

Binzoni et al. [28]

2

1

1

2

3

N/A

1.80

Moderate

Binzoni et al. [29]

2

1

3

2

3

N/A

2.20

Moderate

Boushel et al. [30]

2

1

2

2

2

N/A

1.80

Moderate

Kutsuzawa et al. [31]

2

1

2

2

3

N/A

2

Moderate

Sako et al. [32]

2

1

2

2

3

N/A

2

Moderate

Hamaoka et al. [33]

2

1

2

2

3

N/A

2

Moderate

Kime et al. [34]

2

1

2

2

3

N/A

2

Moderate

Kime et al. [35]

2

1

2

2

3

N/A

2

Moderate

Nagasawa et al. [36]

3

1

2

2

3

N/A

2.2

Moderate

Forbes et al. [37]

3

2

2

2

3

N/A

2.4

Moderate

Kimura et al. [38]

3

3

2

2

2

N/A

2.4

Moderate

Jones et al. [39]

3

2

2

2

3

3

2.4

Moderate

Forbes et al. [40]

3

2

2

2

3

3

2.5

Moderate

Zange et al. [41]

3

1

2

2

3

N/A

2.2

Moderate

Layec et al. [42]

3

1

2

2

3

1

2

Moderate

Willcocks et al. [43]

2

1

2

2

3

2

2

Moderate

Layec et al. [44]

3

2

1

2

3

1

2

Moderate

Layec et al. [45]

3

2

2

2

3

3

2.5

Moderate

Ryan et al. [6]

3

1

3

2

3

3

2.5

Moderate

Fulford et al. [46]

3

2

2

2

3

1

2.2

Moderate

Hart et al. [47]

3

2

2

2

3

3

2.5

Moderate

Layec et al. [48]

3

2

2

2

3

3

2.5

Moderate

Bendahan et al. [49]

3

1

2

2

3

1

2

Moderate

Yanagisawa et al. [50]

3

1

2

2

3

N/A

1.8

Moderate

Heskamp et al. [51]

3

1

1

2

3

2

2

Moderate