2. Table of studies reporting adverse events.

Study ID	Intervention	Control	Adverse events in the intervention arm	Adverse events in the control arm	Comments
HED‐SMART 2011	Counselling	Usual care	Adverse events were reported for the overall population	Adverse events were reported for the overall population	Quote: "Four participants died of cardiovascular causes during the course of the study (2 from each study arm). No other adverse events were reported."
Hmwe 2015	Acupressure	Usual care	Adverse events were reported for the overall population	Adverse events were reported for the overall population	Quote: "All patients were closely monitored for the occurrence of adverse effects (if any) during the intervention period. [...] In the current study, intra‐dialytic hypotension occurred in 11 patients, with 2 of them discontinuing the intervention because hypotensive episodes constantly occurred."
iDiD 2016	Telephone support + CBT	CBT	No participants experienced an adverse event related to the intervention	No participants experienced an adverse event related to the intervention	Quote: "No trial adverse events occurred.[...] A total of 10 adverse events were detected. None were deemed related to the study. An additional two events occurred that the study team were unaware of and were self‐reported by patients. Both included a hospital admission related to a routine renal procedure (e.g. fistula plasty)."
Kouidi 1997	Exercise	Usual care	No participants experienced an adverse event	No participants experienced an adverse event	Quote: "There were no adverse effects or other complications associated with the training session."
Kouidi 2010	Exercise	Usual care	No participants experienced an adverse event	No participants experienced an adverse event	Quote: "There were no adverse effects or other complications associated with the training session."
Ouzouni 2009	Exercise	Usual care	No participants experienced musculoskeletal, cardiovascular and other complication related to exercise training. Other adverse events were not reported	No participants experienced musculoskeletal, cardiovascular and other complication related to exercise training. Other adverse events were not reported	Quote: "There was no musculoskeletal, cardiovascular or other complication related to exercise training during the study."
Thomas 2017	Meditation	Usual care	No participants experienced an adverse event	No participants experienced an adverse event	Quote: "No adverse events were observed."

CBT ‐ cognitive behavioural therapy