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Table 4 Key information for the primary outcome staff WEMWBS score

From: A pilot cluster randomised controlled trial of a support and training intervention to improve the mental health of secondary school teachers and students – the WISE (Wellbeing in Secondary Education) study

  Cluster size (mean no. with data at both time points) Mean baseline WEMWBS score (SD) ICC for baseline WEMWBS score (95 % CIs)
All staff 73 48.5 (8.3) 0.01 (0.00, 0.03)
Teachers only 55 48.0 (8.4) 0.01 (0.00, 0.05)