The threshold bias model: a mathematical model for the nomothetic approach of suicide.

<h4>Background</h4>Comparative and predictive analyses of suicide data from different countries are difficult to perform due to varying approaches and the lack of comparative parameters.<h4>Methodology/principal findings</h4>A simple model (the Threshold Bias Model) was teste...

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Autor principal:	Walter Sydney Dutra Folly
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2754495e39184e23ae8d2415ac2cbaf4
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spelling	oai:doaj.org-article:2754495e39184e23ae8d2415ac2cbaf42021-11-18T06:46:49ZThe threshold bias model: a mathematical model for the nomothetic approach of suicide.1932-620310.1371/journal.pone.0024414https://doaj.org/article/2754495e39184e23ae8d2415ac2cbaf42011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21909431/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Comparative and predictive analyses of suicide data from different countries are difficult to perform due to varying approaches and the lack of comparative parameters.<h4>Methodology/principal findings</h4>A simple model (the Threshold Bias Model) was tested for comparative and predictive analyses of suicide rates by age. The model comprises of a six parameter distribution that was applied to the USA suicide rates by age for the years 2001 and 2002. Posteriorly, linear extrapolations are performed of the parameter values previously obtained for these years in order to estimate the values corresponding to the year 2003. The calculated distributions agreed reasonably well with the aggregate data. The model was also used to determine the age above which suicide rates become statistically observable in USA, Brazil and Sri Lanka.<h4>Conclusions/significance</h4>The Threshold Bias Model has considerable potential applications in demographic studies of suicide. Moreover, since the model can be used to predict the evolution of suicide rates based on information extracted from past data, it will be of great interest to suicidologists and other researchers in the field of mental health.Walter Sydney Dutra FollyPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 9, p e24414 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Walter Sydney Dutra Folly The threshold bias model: a mathematical model for the nomothetic approach of suicide.
description	<h4>Background</h4>Comparative and predictive analyses of suicide data from different countries are difficult to perform due to varying approaches and the lack of comparative parameters.<h4>Methodology/principal findings</h4>A simple model (the Threshold Bias Model) was tested for comparative and predictive analyses of suicide rates by age. The model comprises of a six parameter distribution that was applied to the USA suicide rates by age for the years 2001 and 2002. Posteriorly, linear extrapolations are performed of the parameter values previously obtained for these years in order to estimate the values corresponding to the year 2003. The calculated distributions agreed reasonably well with the aggregate data. The model was also used to determine the age above which suicide rates become statistically observable in USA, Brazil and Sri Lanka.<h4>Conclusions/significance</h4>The Threshold Bias Model has considerable potential applications in demographic studies of suicide. Moreover, since the model can be used to predict the evolution of suicide rates based on information extracted from past data, it will be of great interest to suicidologists and other researchers in the field of mental health.
format	article
author	Walter Sydney Dutra Folly
author_facet	Walter Sydney Dutra Folly
author_sort	Walter Sydney Dutra Folly
title	The threshold bias model: a mathematical model for the nomothetic approach of suicide.
title_short	The threshold bias model: a mathematical model for the nomothetic approach of suicide.
title_full	The threshold bias model: a mathematical model for the nomothetic approach of suicide.
title_fullStr	The threshold bias model: a mathematical model for the nomothetic approach of suicide.
title_full_unstemmed	The threshold bias model: a mathematical model for the nomothetic approach of suicide.
title_sort	threshold bias model: a mathematical model for the nomothetic approach of suicide.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/2754495e39184e23ae8d2415ac2cbaf4
work_keys_str_mv	AT waltersydneydutrafolly thethresholdbiasmodelamathematicalmodelforthenomotheticapproachofsuicide AT waltersydneydutrafolly thresholdbiasmodelamathematicalmodelforthenomotheticapproachofsuicide
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The threshold bias model: a mathematical model for the nomothetic approach of suicide.

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