This study investigated the association between area-level factors & incidence & repetition of self-harm & identified which area-level factors are independently associated with repetition after adjustment for individual factors. 4743 adults who presented to a Manchester emergency room after self-harm between 1997-2002 were included. Four individual factors – previous self-harm, previous psychiatric treatment, employment status, & marital status – & one area-based factor – proportion of individuals who were of white ethnicity – were independently associated with repetition. (26 refs.)