near-significantP =0.055
This is due to a near-significant increase in REST pre-intervention to post intervention for MBSR patients (0.19, s.e.=0.10, P =0.055, REST difference +38.70 pg ml −1 ), which was not present for pre- to post changes in REST for the controls (−0.11, s.e.=0.08, P =0.178, REST difference −8.60 pg ml −1 , Figure 2a ).