Carnes 2017 [21]	Was the study question or objective clearly stated?	Possible	The study questions were not stated but the aims of the study were.
	Were eligibility/selection criteria for the study population prespecified and clearly described?	Possible	The study did report the eligibility criteria for referral but there could have been some more explanation for some criteria. Age range and gender were not stated in the eligibility criteria.
	Were the participants in the study representative of those who would be eligible for the test/service/intervention in the general or clinical population of interest?	No
	Were all eligible participants that met the prespecified entry criteria enrolled?	Not reported
	Was the sample size sufficiently large to provide confidence in the findings?	No
	Was the test/service/intervention clearly described and delivered consistently across the study population?	Possible	The social prescribing programme was described but the programme seemed quite broad which could mean participants may have had a wide range of experiences from the programme. However, this could be owing to the nature of social prescribing programmes: they are designed to be broad and diverse.
	Were the outcome measures prespecified, clearly defined, valid, reliable, and assessed consistently across all study participants?	No
	Were the people assessing the outcomes blinded to the participants’ exposures/interventions?	Yes
	Was the loss to follow-up after baseline 20% or less? Were those lost to follow-up accounted for in the analysis?	Yes	Loss to follow-up after baseline was 62.5% in the intervention group, and 57.9% in the control group.
	Did the statistical methods examine changes in outcome measures from before to after the intervention? Were statistical tests done that provided p values for the pre-to-post changes?	Yes	Some gaps in p value reporting
	Were outcome measures of interest taken multiple times before the intervention and multiple times after the intervention (i.e., did they use an interrupted time-series design)?	Yes	Outcome measures were only taken once at pre and post intervention.
	If the intervention was conducted at a group level (e.g., a whole hospital, a community, etc.) did the statistical analysis take into account the use of individual-level data to determine effects at the group level?	N/A	N/A