The relationship between sales of SSRI, TCA and suicide rates in the Nordic countriesReport as inadecuate




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BMC Psychiatry

, 10:62

First Online: 06 August 2010Received: 03 September 2009Accepted: 06 August 2010

Abstract

BackgroundIn the period 1990-2006, strong and almost equivalent increases in sales figures of selective serotonin re-uptake inhibitors SSRIs were observed in all Nordic countries.
The sales figures of tricyclic antidepressants TCAs dropped in Norway and Sweden in the nineties.
After 2000, sales figures of TCAs have been almost constant in all Nordic countries.
The potentially toxic effect of TCAs in overdose was an important reason for replacing TCAs with SSRIs when treating depression.
We studied whether the rapid increase in sales of SSRIs and the corresponding decline in TCAs in the period 1990-98 were associated with a decline in suicide rates.

MethodsAggregated suicide rates for the period 1975-2006 in four Nordic countries Denmark, Finland, Norway and Sweden were obtained from the national causes-of-death registries.
The sales figures of antidepressants were provided from the wholesale registers in each of the Nordic countries.
Data were analysed using Fisher-s exact test and Pearson-s correlation coefficient.

ResultsThere was no statistical association P = 1.0 between the increase of sales figures of SSRIs and the decline in suicide rates.
There was no statistical association P = 1.0 between the decrease in the sale figures of TCAs and change in suicide rates either.

ConclusionsWe found no evidence for the rapid increase in use of SSRIs and the corresponding decline in sales of TCAs being associated with a decline in the suicide rates in the Nordic countries in the period 1990-98.
We did not find any inverse relationship between the increase in sales of SSRIs and declining suicide rates in four Nordic countries.

Electronic supplementary materialThe online version of this article doi:10.1186-1471-244X-10-62 contains supplementary material, which is available to authorized users.

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Author: Per-Henrik Zahl - Diego De Leo - Øivind Ekeberg - Heidi Hjelmeland - Gudrun Dieserud

Source: https://link.springer.com/



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