Kirshbaum 2017.

Methods	Randomised, individual, single‐site trial, 24 months
Participants	UK; 1 hospital (112 participants); breast cancer; women only; mean age 60.5 years CONT, 60.7 years INT
Interventions	INT (n = 56): participants to contact nurse‐run helpline as needed. Participants also received 4 psychoeducational sessions and a resource pack. Safety net – none. CONT (n = 56): schedule NR. Participants also received same psychoeducational sessions but without resource pack, availability of emergency appointments unclear.
Outcomes	Anxiety and depression: 6, 12, 18 and 24 months (HADS) Quality of life: 6, 12, 18 and 24 months (EORTC QLQ‐C30 and EORTC QLQ‐BR23)
Notes	All participants received 4 psychoeducational sessions (half‐days over 4 weeks called 'Moving Forward') addressing the management and impact of breast cancer, breast reconstruction, lymphoedema, exercise, breast awareness after surgery, healthy eating and management of menopausal symptoms. Funded NR. COI – none.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not described.
Allocation concealment (selection bias)	Unclear risk	Not described.
Blinding of participants and personnel (performance bias) All outcomes	High risk	Blinding could not be achieved due to the nature of the intervention and being conducted on 1 hospital site.
Blinding of outcome assessment (detection bias) All outcomes	High risk	Self‐reported quality of life questionnaires.
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Appropriate dealing with missing values was evident but no information on how much missing data from each group, and quite likely missing data could have been directly linked to the outcome being measured.
Selective reporting (reporting bias)	Low risk	All recorded data seemed to be reported in tables.
Other bias	Unclear risk	Both groups received educational material.