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      Validación de la causa básica de defunción en las muertes que requieren intervención medicolegal Translated title: Validation of the Underlying Cause of Death in Medicolegal Deaths

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          Abstract

          Fundamento: Las defunciones por causas externas requieren exámenes complementarios para determinar la causa de muerte. Si no se incorporan estos resultados a los registros de mortalidad estas causas pueden quedar mal clasificadas. El objetivo del estudio es validar la causa básica de defunción del Registro de Mortalidad con la obtenida de las fuentes forenses, en Barcelona entre los años 2004 y 2006. Métodos: Diseño transversal. La población de estudio son los fallecidos residentes en Barcelona con intervención medicolegal entre 2004 y 2006. Las fuentes de información son el Registro de Mortalidad y el archivo de patología forense del Instituto de Medicina Legal de Catalunya (IMLC) (estándar de comparación). Las variables son la causa de defunción, el sexo y la edad. Se calcula la sensibilidad, el porcentaje de confirmación (PC) y sus intervalos de confianza al 95% (IC95%). Resultados: La sensibilidad de las causas externas es 59,7% (IC95%:56,5-62,9) y el PC 96,7% (IC95%:94,8-98,0). Las lesiones por tráfico, las intoxicaciones y los suicidios están subnotificados en el Registro de Mortalidad siendo la sensibilidad inferior al 45% y el PC superior al 80%. Las causas mal definidas están sobrenotificadas siendo la sensibilidad de 89,2% (IC95%:83,4-93,4) y el PC de 28,0% (IC95%:24,2-32,1). No hay diferencias por sexo y edad. Conclusiones: La validez de las causas externas del Registro de Mortalidad es escasa por la subnotificación y el elevado porcentaje de causas mal definidas. Según los resultados, incorporar la información de las fuentes forenses al Registro de Mortalidad aumenta la calidad de las estadísticas de mortalidad.

          Translated abstract

          Background: Deaths due to external causes require additional medical tests in order to determine the cause of death. If these results are not incorporated into the death register these causes may be misclassified. The objective of this study is to validate the underlying cause of death of the Mortality Register with information obtained from forensic sources in Barcelona between 2004 and 2006. Methods: Cross-sectional design. The study population consisted of deceased residents in Barcelona with a medicolegal intervention between 2004 and 2006. The sources of information are the Mortality Registry and the forensic pathology file filled in by Institute of Legal Medicine of Catalonia (ILMC) (gold standard). The study variables are the cause of death, sex and age. Sensitivity and percentage of confirmation (PC) with 95% confidence intervals (95% CI) are calculated. Results: The sensitivity of external causes is 59.7% (95% CI:56.5-62.9) and PC is 96.7% (95% CI:94.8-98.0). Traffic injuries, poisonings and suicides are under-reported in the Mortality Register with a sensitivity lower than 45% and a PC higher than 80%. Symptoms, signs and ill-defined conditions are over-reported with a sensitivity of 89.2% (95% CI:83.4-93.4) and a PC of 28.0% (95% CI:24.2-32.1). There are no differences by sex and age. Conclusions: The validity of the external causes in the Mortality Register is low due to under-reporting and the high proportion of symptoms signs and ill-defined causes. According to the results, incorporating information from forensic sources to the Mortality Register increases the quality of mortality statistics.

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          Most cited references67

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            Accuracy of cancer death certificates and its effect on cancer mortality statistics.

            A study to determine the accuracy of cancer mortality data was done using cancer deaths occurring during 1970 and 1971 in eight of the nine areas included in the Third National Cancer Survey (TNCS). Death certificates with an underlying cause of death of cancer were compared to the hospital diagnosis for 48,826 resident cases of single primary cancers. The underlying cause of death as coded on the death certificate was found to be accurate for about 65 per cent of the cancer deaths in this study. Misclassification problems occurred for colorectal cancer, the second leading cause of death from cancer. Colon cancer was overreported and rectal cancer was under-reported on death certificates. Other misclassification problems were found for cancers of the uterus, brain, and buccal cavity including most of its sub-sites. Physicians tended to report a non-specific site of cancer on the death certificate rather than the specific site identified by the hospital diagnosis.
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              Suicides hidden among undetermined deaths.

              The research phase of the National Suicide Prevention Project in Finland (from 1 April 1987 to 31 March 1988) included medico-legal investigation and psychological autopsy of all deaths suspected of being suicides, including 1397 official suicides and 61 undetermined deaths. In later analyses on suicide, undetermined cases were excluded. This paper presents an analysis of all officially classified undetermined deaths (n = 139) over the study period, consisting of all the initially suspected suicides (n = 61) and the remaining undetermined deaths (n = 78) where suicide could not be excluded. Poisoning by solids or liquids and drowning were the most common causes of all undetermined deaths. Suicidal intent was observed in 87% of undetermined deaths initially suspected of being suicides. In addition, 31% of these subjects had previously attempted suicide, and 34% had made suicidal threats. Depression was diagnosed in 23% of cases and alcohol dependence or abuse in 31% of cases. Undetermined deaths resembled suicides and appeared to reduce the suicide rate by 10%.
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                Author and article information

                Journal
                resp
                Revista Española de Salud Pública
                Rev. Esp. Salud Publica
                Ministerio de Sanidad, Consumo y Bienestar social (Madrid, Madrid, Spain )
                1135-5727
                2173-9110
                April 2011
                : 85
                : 2
                : 163-174
                Affiliations
                [02] Barcelona orgnameAgència de Salut Pública de Barcelona España
                [05] Barcelona orgnameInstitut de Medicina Legal de Catalunya orgdiv1Departament de Justícia
                [01] orgnameCIBER Epidemiología y Salud Pública (CIBERESP)
                [04] Barcelona orgnameUniversitat Pompeu Fabra
                [03] Barcelona orgnameInstitut d'Investigació Biomèdica (IIB) Sant Pau
                Article
                S1135-57272011000200005 S1135-5727(11)08500200005
                10.1590/s1135-57272011000200005
                21826379
                930a4d06-a905-4ced-912e-5fd8629aed6b

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 International License.

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                Figures: 0, Tables: 0, Equations: 0, References: 26, Pages: 12
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                SciELO Public Health

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                Mortalidad,Causas externas,Autopsia,Validación,Mortality,External causes,Autopsy,Validation

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