Table 3. Results from the stakeholder informed knowledge mobilisation activities.

Activity	Results and feedback
Reviews conducted and reports	From April 2021 to March 2023, the WCEC conducted 51 evidence reviews and published 51 reports (in the WCEC library and on pre-print servers), which met stakeholders timelines (Fig 4). (The 51 evidence reviews included 10 rapid evidence summaries and 6 rapid evidence maps (delivered within 2 months, and 35 rapid reviews delivered within 3 months). Where very urgent, e.g. a review about the safety of ozone machines in schools, an evidence summary was delivered in 1 week). From 21 survey responses about the report structure and accessibility, 100% found the ‘Topline summary’ the most useful part of the report. The ‘strength of evidence’ section was deemed useful by over 90% of respondents, with several commenting on the importance of this area. The highlighting of the strength of the evidence was excellent and particularly helpful. We often get evidence presented as gospel, it was good to see a more honest approach (S18). Respondents suggested improving the reports for language accessibility and highlighting of key points: ‘… Within full report the key findings potentially could be more clearly presented. If bold highlighting key text, then useful to have key words rather than whole bulleted statements for example’ (S12).
Infographics	14 infographics were produced (example in Fig 5). Infographics were deemed a useful addition to support wider accessibility. Feedback for an infographic on the ‘Effectiveness of community diagnostic centres’ included: ‘I think it’s a really useful infographic for NHS Wales …. At a time when the system is so busy that Executives in particular may not initially have time to read the full evidence, the key points ….will certainly spark their interest’(E1). An example of infographic use: The review findings and infographic for ‘the evidence of direct harm from COVID-19 infection and COVID-19 vaccine in pregnant/post-partum women and the unborn child’ were presented at a meeting of the midwives and maternity service leads in Wales. The infographic was deemed useful to support health professionals in their discussions with pregnant women regarding COVID-19 vaccination, and the group provided feedback to improve the readability. The infographic and report were promoted to midwives, to discuss with women, via the Public Health Wales COVID-19 immunisation programme page.
Presention of review findings	The results of 51 evidence reviews were presented to the key stakeholders at final stakeholder meetings. *24 Welsh Goverment evidence briefing sessions were held (October 2021 –January 2023), with an average of 33 participants. Feedback for the evidence briefings was positive: ‘Both the evidence briefings and symposium were very insightful events that provided useful opportunities to share learning and develop links for future collaboration’ (S18).

* Twenty-four evidencve briefing sessions were held to present and discuss review findings. It should be noted that evidence briefings were only introduced to the Centres processes at a later stage.