The aim of this article is to evaluate the effectiveness of a mindfulness-based cognitive therapy group in clinical practice with a heterogeneous inner London population. The data are presented from 28 people who attended an eight-week group programme. The reliable change index was used to calculate how many people improved, did not change or deteriorated, on measures of depression (PHQ-9), anxiety (GAD-7) and social functioning (WSAS). Login using your SSSFT NHS Athens for full text. SSOTP - request a copy of the article from the library http://www.sssft.nhs.uk/library