“…Fourteen studies were state-wide or regional efforts comprised of multiple communities using the same implementation framework, such as the Strategic Prevention Framework State Incentive Grant [SPF-SIG], Healthy Cities, or Communities That Care [ 13 , 28 – 31 , 33 , 34 , 36 , 37 , 40 , 41 , 46 , 48 , 49 ]. A smaller number of studies investigated coalitions with structural or contextual differences [ 42 , 50 , 51 ], or that were linked through a funding program or community of practice [ 32 , 35 , 38 , 43 , 46 , 52 ]. Ten studies included coalitions that were formed in response to a funding opportunity and/or government policy [ 13 , 30 , 31 , 34 , 36 , 37 , 41 , 43 , 45 , 46 ], four included coalitions formed in response to a research project [ 33 , 48 – 50 ], three included coalitions that were explicitly grassroots [ 47 , 50 , 51 ], and ten studies included coalitions with unclear origins [ 28 , 29 , 32 , 35 , 38 – 40 , 42 , 44 , 52 ].…”