This study tested suicidality in relation to cerebrospinal fluid (CSF) 5-hydroxyindoleacetic acid (5-HIAA) and the dexamethasone suppression test. Patients with nonsuppression of cortisol had the highest scores of the Suicide Assessment Scale (SUAS) and the Montgomery Asberg Depression Rating Scale (MADRS), respectively (P < 0.05; P < 0.01). The results persisted when analysed for covariance with CSF-5-HIAA. We have previously noted an elevated suicide risk in suicide attempters with high SUAS-scores, why a large part of nonsuppressors may be at high risk for future suicide.

Suicide and attempted suicide are common phenomena amongst psychiatric inpatients and outpatients. Self-immolation or self-incineration are dramatic attention seeking events which may have religious or political significance. Deliberate self burning which incorporate these may also encapsulate elements of attention seeking, parasuicidal and suicide behaviour. The present study shows that psychiatric inpatients who choose to injure themselves by self burning are a seriously disturbed group whose intention is largely suicidal and who have a previous history of attempted suicide. They tend to be female, single, suffering from either schizophrenia or personality disorder in contrast to the majority of people who take their lives by other methods who tend to suffer from depression, alcoholism or both.