Improving difficult peripheral intravenous access requires thought, training and technology (DART3): a stepped-wedge, cluster randomised controlled trial protocol

Table 2 Data collection time points for DART³

Activities	Pre-implementation	SWRCT - implementation
Activities	Pre-implementation	Step 1	Step 2	Step 3	Step 4	Step 5	Step 6	Step 7
Establish site-specific advisory groups	√
Qualitative interviews and evidence synthesis	√
Economic interviews for PIVC insertion procedures	√	√	√	√	√	√
Co-develop DIVA tool and escalation pathway	√
Pilot-test and evaluate DIVA tool and escalation pathway prototypes for reliability, acceptability and reproducibility	√	√
Implementation of site-specific DIVA tools across the 3 hospitals, 12 clusters in a staggered manner			√	√	√	√
Cluster 1 from each hospital			√	√	√	√
Cluster 2 from each hospital				√	√	√
Cluster 3 from each hospital					√	√
Cluster 4 from each hospital						√
Patient and service level outcomes (REDCap CRF)		√	√	√	√	√	√	√
DIVA PIVC time-in-motion data for cost-effectiveness analysis		√	√	√	√	√
Implementation data collection (questionnaires, field notes)		√	√	√	√	√
Sustainability activities							√	√
Organisational guideline incorporation							√	√
Process evaluation interview						√	√	√

ISSN: 1472-6963