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Table 1 Study progression criteria

From: Feasibility, acceptability, and fidelity of Physical Activity Routines After Stroke (PARAS): a multifaceted behaviour change intervention targeting free-living physical activity and sedentary behaviour in community-dwelling adult stroke survivors

Criterion

Green

Amber

Red

Study procedures

The proposed sample size (up to 35 stroke survivors and up to 12 healthcare professionals) is achieved and retained. Study procedures are acceptable and feasible and at least 85% of outcome data is collected (i.e. case report form and questionnaire completion).

At least 14 stroke survivors and at least seven healthcare professionals recruited and retained at follow-up. Moderate changes to study procedures required (e.g. amendments to recruitment strategy and data collection procedures); and a minimum of 60% of outcome data is collected

< 14 stroke survivors and < 7 healthcare professionals recruited and retained at follow-up. Significant changes to study procedures required (e.g. eligibility criteria in order to achieve sample size; alternative data collection tools/instruments); and <60% of outcome data collected

Intervention acceptability and feasibility

Only minor changes to intervention required (e.g. minor changes to written information content)

Moderate changes to the intervention required (e.g. additional time required to deliver review sessions or additional intervention content is required)

Significant changes to the intervention required (e.g. change in mode of delivery, frequency of sessions and content of intervention)