Mather 2002.

Methods	RCT (parallel group)
Participants	Primary care, psychiatric services, advertisement in paper and radio. N = 86 (59 women and 27 men). Mean age 63.7 (range 53 ‐ 78) in exercise and 66.2 (56 ‐ 91) in control group.
Interventions	1. Endurance, muscle strengthening and stretching, in a group exercise class, lasting 45 minutes. An instructress ran the class from a podium in the centre of a hall (n = 43). Twice weekly for 10 weeks 2. Health education classes (n = 43), twice weekly for 10 weeks
Outcomes	1. Hamilton Rating Scale for Depression 2. Geriatric Depression Scale 3. Clinical Global Impression 4. Patient Global Impression
Notes	Outcome assessor blind Intention‐to‐treat
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Computer‐generated random number list
Allocation concealment (selection bias)	Low risk	Sealed envelopes
Blinding (performance bias and detection bias) participants	Unclear risk	Participants not blind, unclear effect on bias
Blinding (performance bias and detection bias) those delivering intervention	Unclear risk	Those delivering intervention aware of allocation, unclear effect on bias
Blinding (performance bias and detection bias) outcome assessors	Low risk	Primary outcome was HRSD delivered by one of 2 psychiatrists who were blinded to treatment allocation
Incomplete outcome data (attrition bias) All outcomes	Low risk	No drop‐outs
Selective reporting (reporting bias)	Unclear risk	All prespecified outcome measures reported, but no protocol
Other bias	Unclear risk	Unclear