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Non-participation and attrition in a longitudinal study of civilians exposed to the January 2015 terrorist attacks in Paris, France

BACKGROUND: Non-participation and attrition are rarely studied despite being important methodological issues when performing post-disaster studies. A longitudinal survey of civilians exposed to the January 2015 terrorist attacks in Paris, France, was conducted 6 (Wave 1) and 18 months (Wave 2) after...

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Autores principales: Vuillermoz, Cécile, Stene, Lise Eilin, Aubert, Lydéric, Motreff, Yvon, Pirard, Philippe, Baubet, Thierry, Lesieur, Sophie, Chauvin, Pierre, Vandentorren, Stéphanie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7071581/
https://www.ncbi.nlm.nih.gov/pubmed/32171236
http://dx.doi.org/10.1186/s12874-020-00943-x
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author Vuillermoz, Cécile
Stene, Lise Eilin
Aubert, Lydéric
Motreff, Yvon
Pirard, Philippe
Baubet, Thierry
Lesieur, Sophie
Chauvin, Pierre
Vandentorren, Stéphanie
author_facet Vuillermoz, Cécile
Stene, Lise Eilin
Aubert, Lydéric
Motreff, Yvon
Pirard, Philippe
Baubet, Thierry
Lesieur, Sophie
Chauvin, Pierre
Vandentorren, Stéphanie
author_sort Vuillermoz, Cécile
collection PubMed
description BACKGROUND: Non-participation and attrition are rarely studied despite being important methodological issues when performing post-disaster studies. A longitudinal survey of civilians exposed to the January 2015 terrorist attacks in Paris, France, was conducted 6 (Wave 1) and 18 months (Wave 2) after the attacks. We described non-participation in Wave 1 and determined the factors associated with attrition in Wave 2. METHODS: Multivariate logistic regression models were used to compare participants in both waves with those who participated in the first wave only. Analyses were performed taking the following factors into account: socio-demographic characteristics, exposure to terror, peri-traumatic reactions, psychological support, perceived social support, impact on work, social and family life, and mental health disorders. Characteristics of new participants in Wave 2 were compared with participants in both waves using a chi-square test. RESULTS: Of the 390 persons who were eligible to participate in the survey, 190 participated in Wave 1 (participation rate: 49%). The most frequently reported reason for non-participation was to avoid being reminded of the painful event (32%, n = 34/105). In Wave 2, 67 were lost to follow-up, 141 people participated, of whom 123 participated in Wave 1 (re-participation rate: 65%) and 18 were new. Attrition in Wave 2 was associated with socio-demographic characteristics (age, French origin) and location during the attacks, but not with terror exposure or mental health disorders. Compared with those who participated in both waves, new participants declared less social and psychological support since the attacks. CONCLUSIONS: Attrition at 6 months was not associated with exposure to terror or mental health disorders, which indicates that any bias in future analyses on IMPACTS on mental health outcomes will be limited. Our findings suggest the importance of adapting similar surveys for people of foreign origin and of improving strategies to avoid attrition of younger people, for example by using social media, peers, and the educational environment. The present study also revealed that a high level of exposure to terror and a lack of social and psychological support after a terrorist event could impede individuals’ participation in similar surveys in the short term.
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spelling pubmed-70715812020-03-18 Non-participation and attrition in a longitudinal study of civilians exposed to the January 2015 terrorist attacks in Paris, France Vuillermoz, Cécile Stene, Lise Eilin Aubert, Lydéric Motreff, Yvon Pirard, Philippe Baubet, Thierry Lesieur, Sophie Chauvin, Pierre Vandentorren, Stéphanie BMC Med Res Methodol Research Article BACKGROUND: Non-participation and attrition are rarely studied despite being important methodological issues when performing post-disaster studies. A longitudinal survey of civilians exposed to the January 2015 terrorist attacks in Paris, France, was conducted 6 (Wave 1) and 18 months (Wave 2) after the attacks. We described non-participation in Wave 1 and determined the factors associated with attrition in Wave 2. METHODS: Multivariate logistic regression models were used to compare participants in both waves with those who participated in the first wave only. Analyses were performed taking the following factors into account: socio-demographic characteristics, exposure to terror, peri-traumatic reactions, psychological support, perceived social support, impact on work, social and family life, and mental health disorders. Characteristics of new participants in Wave 2 were compared with participants in both waves using a chi-square test. RESULTS: Of the 390 persons who were eligible to participate in the survey, 190 participated in Wave 1 (participation rate: 49%). The most frequently reported reason for non-participation was to avoid being reminded of the painful event (32%, n = 34/105). In Wave 2, 67 were lost to follow-up, 141 people participated, of whom 123 participated in Wave 1 (re-participation rate: 65%) and 18 were new. Attrition in Wave 2 was associated with socio-demographic characteristics (age, French origin) and location during the attacks, but not with terror exposure or mental health disorders. Compared with those who participated in both waves, new participants declared less social and psychological support since the attacks. CONCLUSIONS: Attrition at 6 months was not associated with exposure to terror or mental health disorders, which indicates that any bias in future analyses on IMPACTS on mental health outcomes will be limited. Our findings suggest the importance of adapting similar surveys for people of foreign origin and of improving strategies to avoid attrition of younger people, for example by using social media, peers, and the educational environment. The present study also revealed that a high level of exposure to terror and a lack of social and psychological support after a terrorist event could impede individuals’ participation in similar surveys in the short term. BioMed Central 2020-03-14 /pmc/articles/PMC7071581/ /pubmed/32171236 http://dx.doi.org/10.1186/s12874-020-00943-x Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research Article
Vuillermoz, Cécile
Stene, Lise Eilin
Aubert, Lydéric
Motreff, Yvon
Pirard, Philippe
Baubet, Thierry
Lesieur, Sophie
Chauvin, Pierre
Vandentorren, Stéphanie
Non-participation and attrition in a longitudinal study of civilians exposed to the January 2015 terrorist attacks in Paris, France
title Non-participation and attrition in a longitudinal study of civilians exposed to the January 2015 terrorist attacks in Paris, France
title_full Non-participation and attrition in a longitudinal study of civilians exposed to the January 2015 terrorist attacks in Paris, France
title_fullStr Non-participation and attrition in a longitudinal study of civilians exposed to the January 2015 terrorist attacks in Paris, France
title_full_unstemmed Non-participation and attrition in a longitudinal study of civilians exposed to the January 2015 terrorist attacks in Paris, France
title_short Non-participation and attrition in a longitudinal study of civilians exposed to the January 2015 terrorist attacks in Paris, France
title_sort non-participation and attrition in a longitudinal study of civilians exposed to the january 2015 terrorist attacks in paris, france
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7071581/
https://www.ncbi.nlm.nih.gov/pubmed/32171236
http://dx.doi.org/10.1186/s12874-020-00943-x
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