1. Primary outcome ‐ medication‐taking ability.

Study	Measure of medication‐taking ability	Outcome
Begley 1997	Objective measure: 5‐task dexterity test (e.g. opening child‐resistant closure), 1 point awarded for each successfully completed activity. Note: no difference across groups at baseline ‐ mean (SD) group A: 7.8 (1.3), group B: 7.5 (1.5), group C: 8.0 (1.4)	Objective measure: follow‐up results not reported
Cargill 1992	Objective measure: behaviour score/100 for congruency between supply of medications on hand and prescribed medications (/40), verbalising correct regimen (/30), maintaining each prescribed med (/20), appropriate use of OTC (/10). Points deducted for sequestering old scripts, inappropriate use of alternative medications, or mixing medications together	Mean read from graph: Control: 74 vs intervention (group 3); 86 vs intervention (group 2); 84 vs intervention (group 3): 86
Lingler 2016	Objective measure: Medication Management Instrument for Deficiencies in the Elderly (MedMaIDE). MedMaiDE uses interview and observation to assess ability to self‐administer medications in 3 areas: knowledge of medications, how to take medications, and how to procure medications. Each medication is reviewed during administration. Scores 0 to 13, max total deficiency score is 13	Baseline: mean ± SD intervention 0.833 ± 0.745 vs control 0.692 ± 0.768 Unpublished follow‐up results: mean ± SD: intervention 0.595 ± 0.725 vs control 0.297 ± 0.777; both groups showed significant decreases in number of medication management problems at 2 months (P < 0.01)
Manning 2007	Subjective measure: self‐reported safety. Since discharge, how many mistakes have you made taking your medications (score 0 to 4)?	Mean ± SD: intervention 0.78 ± 0.4187 (n = 72) vs control 0.79 ± 0.4113 (n = 57)
Pereles 1996	Objective measure: assessed differently for each group: intervention = pharmacist assessment with input from other team members, primarily based on having made 2 or fewer errors at stage 2 of the inpatient self‐medication programme ‐ considered able to self‐medicate at discharge. Control = pharmacist assessment with input from other team members at time of discharge counselling. YES/NO ‐ self‐medicating at discharge (note: there could be reasons other than failing the SMP that might explain why they were not self‐medicating at discharge, such as patient preference)	n (%): intervention 39 (76.5%) vs control 39 (69.6%)

OTC: over‐the‐counter.

SD: standard deviation.