“…Of the 11 community‐based studies, five (45%) were randomized controlled trials, 38,45‐48 one was cluster‐randomized, 43 one was quasi‐randomized (alternate weeks), 39 and the remaining four (36%) were pre‐post studies40‐42,44: two single‐site and two multi‐site with controls (one with randomized allocation to intervention, the other unclear). Of the 11 hospital‐based studies, seven were single site pre‐post comparisons, 49‐52,54,56,59 one was a two site pre‐post comparison without a control, 53 one was a multi‐site pre‐post with one site non‐randomly allocated to intervention, 57 one was a multi‐site with multiple interventions rolled out at different times (non‐uniformly) across sites, 58 and one was a qualitative study 55 . We summarize the study types in Table 3.…”