The FACTOR-@ study was a randomized clinical trial in which @ patients with type @ or type @ diabetes of at least @ to @ years ' duration and without symptoms of CAD were recruited from @ clinics and practices of a single health system ( Intermountain Healthcare , Utah ) , enrolled at a single-site coordinating center , and randomly assigned to CAD screening with CCTA ( n = @ ) or to standard national guidelines-based optimal diabetes care ( n = @ ) ( targets : glycated hemoglobin level < @ % , low-density lipoprotein cholesterol level < @ mg/dL , systolic blood pressure < @ mm Hg ) .