“… 26 , 29 , 42 , 47 , 50 , 57 In terms of qualities associated with generalizability, 20 RCTs 26 , 28 , 29 , 30 , 32 , 33 , 34 , 39 , 42 , 44 , 47 , 50 , 51 , 54 , 56 , 57 , 59 , 62 , 63 , 64 (49%) were conducted at multiple sites, and 21 RCTs (51%) were conducted at a single site. 27 , 31 , 35 , 36 , 37 , 38 , 40 , 41 , 43 , 45 , 46 , 48 , 49 , 52 , 53 , 55 , 58 , 60 , 61 , 65 , 66 Only 11 trials (27%) reported race and ethnicity ( Figure 2 ) 30 , 31 , 32 , 33 , 36 , 44 , 49 , 55 , 59 , 61 , 63 ; among those trials, a median of 21% (range, 0%-51%) of p...…”