Limits of teacher delivered sex education: interim behavioural outcomes from randomised trial

We inadvertently failed to amend some numbers in the flow chart of participants, which appeared in the full (web) version of this paper by Daniel Wight and colleagues (http://bmj.com/cgi/content/full/324/7351/1430); the chart was not published in the paper version (15 June, pp 1430-3). The chart contains two errors. In the first level, the number of schools should be 25 [not 2], and in the left hand box in the second level, the number of control schools should be 12 [not 2].