Table 4 Study design and methods

Quantitative

Economic evaluation

1.4%

1

Devine et al

Observational (cohort)

4.3%

3

Jarrett et al., Logie et al. [19], O'Laughlin et al. [20]

Observational (cross-sectional)

5.8%

4

Adam [21], Adam et al., Edmond et al. [23], Nasir et al

Observational (pilot)

1.4%

1

O'Laughlin et al. [25]

Observational (pre-post)

8.7%

6

Adam [26], Casey et al., Corna et al., Glass et al., James et al., Le Roux et al

Observational (retrospective descriptive)

1.4%

1

Morris et al

Quasi-experimental

7.2%

5

Anibueze et al., Doocy et al., Draiko et al., Edmond et al. [36], Edmond et al. [37]

Randomized controlled trial

7.2%

5

Bakesiima et al., Greene et al., Gupta et al., Hossain et al., Vaillant et al

Mixed Methods

Observational (cohort) with qualitative

1.4%

1

Muuo et al

Observational (cross-sectional) with qualitative

4.3%

3

Amsalu et al. [61], Myers et al., Santo et al

Observational (other) with qualitative

1.4%

1

Sami et al. [64]

Observational (pre-post) with qualitative

14.5%

10

Amsalu et al. [65], Berg et al., Castillo et al., Foster et al., Guan et al., Logie et al. [70], Sami et al. [71], Smith et al., Stevens et al., Tran et al. [74]

Observational (retrospective descriptive) with qualitative

10.1%

7

Castle et al., Deitch et al., Ferreyra et al., Ho and Wheeler, Klabbers et al., Turner et al., Vries et al

Pilot RCT with qualitative

2.9%

2

Bolan et al., Khan et al

Quasi-experimental with qualitative

1.4%

1

Hynes et al

RCT with qualitative

1.4%

1

Gibbs et al

Qualitative

Case study

1.4%

1

Thommesen et al

In-depth interviews

14.5%

10

Awasom-Fru et al., Kabakian-Khasholian et al., Lilleston et al., Mugo et al., Persson et al., Phanwichatkul et al., Sarker et al., Tousaw et al. [51], Tousaw et al. [52], West et al

Other qualitative

8.7%

6

O’Connell et al., Orya et al., Perera et al., Tanabe et al., Tran et al. [58], Yankah et al