“…The MRCI has been used to compute regimen complexity in inpatient and outpatient settings among people with diabetes [11,12], cardiovascular disease [13], depression [14], multimorbidity [15] and those receiving nocturnal home haemodialysis [16]. Studies have been conducted in hospital inpatients [2,6,8,17,18], and in nursing homes [19]. Regimen complexity has also been computed utilising electronic medical records from different healthcare providers in the USA [4,20,21].…”