• Elizabeth Lovegrove, Stephanie J MacNeill, Yumeng Liu, Sophie Rees, Jonathan Banks, Robert Johnson, and Matthew J Ridd.
• Primary Care Research Centre, University of Southampton, Southampton.
• Br J Gen Pract. 2024 Sep 1; 74 (746): e644e651e644-e651.

BackgroundHerpes zoster (shingles) is normally diagnosed clinically. Timely diagnosis is important so that antiviral treatment can be started soon after rash onset.AimTo assess whether a practice-level educational intervention, aimed at non-clinical patient-facing staff, improves the timely assessment of patients with shingles.Design And SettingThis was a cluster randomised study within a trial (SWAT) with nested qualitative study in general practices in England.MethodPractices were cluster randomised 1:1, stratified by centre and minimised by practice list size and Index of Multiple Deprivation score. Intervention practices were sent educational materials, highlighting the common presenting features of shingles and what action to take if suspected. The primary and secondary outcomes were the mean proportion of patients per practice seen within 72 and 144 h of rash onset, respectively. Comparison between groups was conducted using linear regression, adjusting for randomisation variables. Semi-structured interviews with practice staff in intervention practices explored views and opinions about the intervention.ResultsIn total, 67 practices were enrolled; 34 randomised to the intervention and 33 to the control. The mean difference in proportion of patients seen within 72 and 144 h was -0.132 (95% confidence interval [CI] = -0.308 to 0.043) and -0.039 (95% CI = -0.158 to 0.080), respectively. In intervention practices, 90.9% reported distributing the educational materials; however, engagement with these was suboptimal. Twelve participants were interviewed, and the poster component of the intervention was said to be easiest to implement.ConclusionOur educational intervention did not improve the timely assessment of patients with shingles. This may be the result of poor intervention engagement.© The Authors.

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