The Manchester Self Harm Rule had good sensitivity but poor specificity for predicting repeat self harm or suicide
- emergency services (hospital)
- emergency services (psychiatric)
- self injurious behaviour
- suicide (attempted)
Q In patients who present to the emergency department (ED) with self harm, can a simple clinical rule predict repetitions of self harm or suicide in the next 6 months?
prospective cohort study with separate derivation and validation data sets.
5 EDs in Manchester and Salford, UK.
9086 episodes of self harm (intentional self poisoning or self injury) in patients 11–98 years of age (median 30 y, 56% women). Patients who did not wait for assessment or refused treatment were excluded.
Description of prediction guide:
patients were considered to be at moderate or high risk of repeat self harm or suicide if any 1 of the 4 components of the Manchester Self Harm Rule was present: history of self harm, previous …