Seasonal changes and decrease of suicides and suicide attempts in France over the last 10 years

Abstract The objective of this study was to examine the evolution of suicides and suicide attempts over the last 10 years in France. We analyzed the number of deaths by suicide and suicide attempts in metropolitan France (2009–2018) from French national databases, on a daily, weekly or monthly basis...

Full description

Bibliographic Details
Main Authors: Marine Ambar Akkaoui, Christine Chan-Chee, Karine Laaidi, Gregory Fifre, Michel Lejoyeux, Guillaume Vaiva, Hugo Peyre, Pierre A. Geoffroy
Format: Article
Language:English
Published: Nature Portfolio 2022-05-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-12215-3
_version_ 1818238863442706432
author Marine Ambar Akkaoui
Christine Chan-Chee
Karine Laaidi
Gregory Fifre
Michel Lejoyeux
Guillaume Vaiva
Hugo Peyre
Pierre A. Geoffroy
author_facet Marine Ambar Akkaoui
Christine Chan-Chee
Karine Laaidi
Gregory Fifre
Michel Lejoyeux
Guillaume Vaiva
Hugo Peyre
Pierre A. Geoffroy
author_sort Marine Ambar Akkaoui
collection DOAJ
description Abstract The objective of this study was to examine the evolution of suicides and suicide attempts over the last 10 years in France. We analyzed the number of deaths by suicide and suicide attempts in metropolitan France (2009–2018) from French national databases, on a daily, weekly or monthly basis. Seasonal variation in suicide rates was modeled using a cosinor function. Based on this model, we determined the association of suicides and suicide attempts with geographic characteristics, age, gender, means used and psychiatric disorders. The number of suicides and suicide attempts decreased over the last ten years in France (mean decrease of 14.49% and 11.69% per year). We observed a significant and recurrent seasonal pattern of suicides and suicide attempts in France, with a peak in spring. The suicide and suicide attempt rates were higher in the northern departments of France. Suicides were more frequent for men (75%) and middle-age individuals (45–54 years old), while suicide attempts were more frequent for women (62%) and young adults and middle-age individual (15–19 and 40–49 years old). Nearly two-thirds of the patients who attempted suicide suffered from comorbid psychiatric disorders. Mood disorders was the most frequent comorbid psychiatric disorder (54%). Voluntary drug intoxication was the most common means of suicide attempt (80%), and hanging was the most common means of suicide (54%). The number of suicides and suicide attempts decreased in France over the last 10 years, with large and recurrent seasonal variations. These findings could be used to alert and adjust prevention policies, as well as developing preventive strategies such as chronotherapeutics.
first_indexed 2024-12-12T12:48:25Z
format Article
id doaj.art-9a286dbef8bc4bdcbdd6ff1267852158
institution Directory Open Access Journal
issn 2045-2322
language English
last_indexed 2024-12-12T12:48:25Z
publishDate 2022-05-01
publisher Nature Portfolio
record_format Article
series Scientific Reports
spelling doaj.art-9a286dbef8bc4bdcbdd6ff12678521582022-12-22T00:24:03ZengNature PortfolioScientific Reports2045-23222022-05-011211810.1038/s41598-022-12215-3Seasonal changes and decrease of suicides and suicide attempts in France over the last 10 yearsMarine Ambar Akkaoui0Christine Chan-Chee1Karine Laaidi2Gregory Fifre3Michel Lejoyeux4Guillaume Vaiva5Hugo Peyre6Pierre A. Geoffroy7Département de Psychiatrie et d’addictologie, AP-HP, GHU Paris Nord, DMU Neurosciences, Hôpital Bichat - Claude BernardSanté Publique FranceSanté Publique FranceMétéo-France, Direction des Services de la Météorologie, Avenue G. CoriolisDépartement de Psychiatrie et d’addictologie, AP-HP, GHU Paris Nord, DMU Neurosciences, Hôpital Bichat - Claude BernardUniv Lille, INSERM U 1772, CHU Lille, General Psychiatry Department, Hôpital FontanNeurodiderot, INSERM UMR 1141, Paris Diderot UniversityDépartement de Psychiatrie et d’addictologie, AP-HP, GHU Paris Nord, DMU Neurosciences, Hôpital Bichat - Claude BernardAbstract The objective of this study was to examine the evolution of suicides and suicide attempts over the last 10 years in France. We analyzed the number of deaths by suicide and suicide attempts in metropolitan France (2009–2018) from French national databases, on a daily, weekly or monthly basis. Seasonal variation in suicide rates was modeled using a cosinor function. Based on this model, we determined the association of suicides and suicide attempts with geographic characteristics, age, gender, means used and psychiatric disorders. The number of suicides and suicide attempts decreased over the last ten years in France (mean decrease of 14.49% and 11.69% per year). We observed a significant and recurrent seasonal pattern of suicides and suicide attempts in France, with a peak in spring. The suicide and suicide attempt rates were higher in the northern departments of France. Suicides were more frequent for men (75%) and middle-age individuals (45–54 years old), while suicide attempts were more frequent for women (62%) and young adults and middle-age individual (15–19 and 40–49 years old). Nearly two-thirds of the patients who attempted suicide suffered from comorbid psychiatric disorders. Mood disorders was the most frequent comorbid psychiatric disorder (54%). Voluntary drug intoxication was the most common means of suicide attempt (80%), and hanging was the most common means of suicide (54%). The number of suicides and suicide attempts decreased in France over the last 10 years, with large and recurrent seasonal variations. These findings could be used to alert and adjust prevention policies, as well as developing preventive strategies such as chronotherapeutics.https://doi.org/10.1038/s41598-022-12215-3
spellingShingle Marine Ambar Akkaoui
Christine Chan-Chee
Karine Laaidi
Gregory Fifre
Michel Lejoyeux
Guillaume Vaiva
Hugo Peyre
Pierre A. Geoffroy
Seasonal changes and decrease of suicides and suicide attempts in France over the last 10 years
Scientific Reports
title Seasonal changes and decrease of suicides and suicide attempts in France over the last 10 years
title_full Seasonal changes and decrease of suicides and suicide attempts in France over the last 10 years
title_fullStr Seasonal changes and decrease of suicides and suicide attempts in France over the last 10 years
title_full_unstemmed Seasonal changes and decrease of suicides and suicide attempts in France over the last 10 years
title_short Seasonal changes and decrease of suicides and suicide attempts in France over the last 10 years
title_sort seasonal changes and decrease of suicides and suicide attempts in france over the last 10 years
url https://doi.org/10.1038/s41598-022-12215-3
work_keys_str_mv AT marineambarakkaoui seasonalchangesanddecreaseofsuicidesandsuicideattemptsinfranceoverthelast10years
AT christinechanchee seasonalchangesanddecreaseofsuicidesandsuicideattemptsinfranceoverthelast10years
AT karinelaaidi seasonalchangesanddecreaseofsuicidesandsuicideattemptsinfranceoverthelast10years
AT gregoryfifre seasonalchangesanddecreaseofsuicidesandsuicideattemptsinfranceoverthelast10years
AT michellejoyeux seasonalchangesanddecreaseofsuicidesandsuicideattemptsinfranceoverthelast10years
AT guillaumevaiva seasonalchangesanddecreaseofsuicidesandsuicideattemptsinfranceoverthelast10years
AT hugopeyre seasonalchangesanddecreaseofsuicidesandsuicideattemptsinfranceoverthelast10years
AT pierreageoffroy seasonalchangesanddecreaseofsuicidesandsuicideattemptsinfranceoverthelast10years