Table 1. Outcome measures

Outcome measure	Source	Group	Level	Time points
2WW	CRF	Intervention and control	Practice level	Baseline and 6 months follow up
PCI
Conversion rate
Detection rate
Feasibility measures
Recruitment	Recruitment log	Intervention and control	Practice level	Monitored throughout until end of recruitment period
Retention	Recruitment log	Intervention and control		Monitored throughout until end of follow up
Adherence	Feedback forms, interviews, post-workshop reflections	Intervention		Monitored throughout until end of follow up
Fidelity	Feedback forms, interviews, post-workshop reflections	Intervention		Monitored throughout until end of follow up
Data collection	Completed CRF forms returned; completion of feedback forms and NoMAD surveys	Intervention and control	Practice level and individual staff level	End of follow up
Descriptive measures
Practice characteristics	Practice questionnaire, interviews	Intervention and control	Practice level	Baseline and 6 months follow up
Practice characteristics	Reflective notes	Intervention	Practice level	Baseline and 6 months follow up
Existing safety-netting practices	Staff interviews, feeback forms	Intervention and control	Practice level	Baseline and 6 months follow up
Process evaluation measures
Acceptability	Staff interviews, Feedback forms	Intervention	Individual participants	2 months post-workshop
Implementation	NoMAD survey, interviews	Intervention	Individual participants	2 months post-workshop
Health economic measures
Intervention delivery costs	Health economics data collection sheets	Intervention	Intervention deliverers	Immediately following each workshop
Staff attendee time	Intervention deliverer workshop notes	Intervention	Individual participants	Notes recorded during each workshop

2WW = 2-week wait. CRF = Case reporting form. PCI = Primary care interval.