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Table 5 Spearman's rank correlation coefficients and p-values for directly age-standardised suicide and antidepressant poisoning rates and prescription rates, England 1993 to 2002

From: Association between mortality from suicide in England and antidepressant prescribing: an ecological study

Cause of death Prescriptions rs p
All suicides All antidepressants -0.73 0.016
Non-drug poisoning suicide All antidepressants -0.89 0.005
Antidepressant-related poisoning deaths All antidepressants -0.45 0.187
Tricyclic antidepressant -related poisoning deaths Tricyclic antidepressants -0.64 0.05
Selective serotonin re-uptake inhibitor and other antidepressant-related poisoning deaths Selective serotonin re-uptake inhibitors and other antidepressants 0.99 <0.001
Antidepressant only poisoning deaths* All antidepressants -0.53 0.12
Tricylclic antidepressant only poisoning deaths* Tricyclic antidepressants -0.71 0.022
Selective serotonin re-uptake inhibitor and other antidepressant only poisoning deaths* Selective serotonin re-uptake inhibitors and other antidepressants 0.94 <0.001
  1. * Where no other drugs were mentioned on the death certificate