“…Sixty‐four interventions repeated 171 times were extracted (Table ) from 18 studies (Blue et al., ; Bouman et al, ; Carroll & Rankin, ; Duffy, Hoskins, & Dudley‐Brown, ; Elley et al., ; Imhof, Naef, Wallhagen, Schwarz, & Mahrer‐Imhof, ; Leung, Liu, Chow, & Chi, ; Leung, Yau, et al, ; McCorkle et al., ; Melis et al., ; Parsons et al., ; Rondinini et al., ; Rosted, Poulsen, Hendriksen, Petersen, & Wagner, ; Schein, Gagnon, Chan, Morin, & Grondines, ; Stuck et al., , ; Trief, ). The density of the interventions varied from 1 to 10.…”