“…Nine study interventions were delivered in 3 months or less 17,18,30,31,[33][34][35][36]43 and 10 interventions lasted 5-6 months. [22][23][24][25]28,29,32,[40][41][42] Seven study interventions were 1 year long, 16,20,21,26,37,38,44 and three interventions were longer than 1 year. 19,27,39 Most studies evaluated the effects of DHC up until the end of the intervention while 31% of studies continued to conduct follow-ups post-inte rvention, 16,21,25,29,[34][35][36][41][42][43] with the furthest follow-up occurring 17-months post-intervention.…”