The Classification of Causes of Historical Mortality (CCHM): A proposal of the study of death records.

OBJECTIVE: To compare and contrast the Classification of Causes of Historical Mortality (CCHM) with the International Classification of Diseases 4th Revision (ICD-4) as methodological elements that can be implemented in historical mortality studies. MATERIALS AND METHODS: We conducted a longitudinal descriptive study of the causes of death in two different localities in Spain, namely, Cadiz and Vejer de la Frontera (1900-1950), to compare the International Classification of Diseases 4th Revision (ICD-4) and the Classification of Causes of Historical Mortality (CCHM). This study proposes the CCHM and its use in statistical analyses of mortality, especially from the mid-19th century to the second half of 20th century. It is a methodological instrument based on the theoretical precepts of Thomas McKeown, expanded through knowledge gained in studies of historical mortality and contrasted with editions of the ICD. RESULTS: The results showed several differences between the ICD-4 and the CCHM. The ten main causes of death (CoDs) in the CCHM account for 74.3% in Cadiz, compared to 56.6% accounted for by the ICD-4. According to the ICD-4, the number of infectious CoDs exceed the number of noninfectious ones in Cadiz every year. On the other hand, based on the CCHM, we observed that while infectious CoD causes of death predominated over noninfectious ones, there was a change in trend, with noninfectious CoDs predominating the following year. During the interval from 1915 to 1937 in Vejer de la Frontera, there were 12 deaths due to ill-specified causes (ICD-4: 18.200) and 0 due to ill-defined causes (CCHM: 3.0.0.0). CONCLUSIONS: The CCHM accurately determines the differences between infectious and noninfectious causes of death and explains sociodemographic and health-related aspects in the population and its use in employment, illegitimacy or place-of-death studies. Moreover, it has more advantages, such as the incorporation of new diagnostic expressions, and it can be constantly updated, thus facilitating its use over long periods of time.

Descriptive Epidemiology of New Zealand's Highest Mortality Earthquake: Hawke's Bay in 1931.

In this study we aimed to produce the first detailed analysis of the epidemiology of the severe injury and mortality impacts of the 1931 Hawke's Bay earthquake in New Zealand (NZ). This involved the compilation and analysis of archival data (hospitalisations and deaths) including the examination of 324 death certificates. We found that there were 662 people for whom some hospitalisation data were available at four weeks post-earthquake: 54% were still in hospital, 4% were still classified as "serious", and 5% had died (n = 28). Our classification of death certificate data indicated 256 earthquake-attributable deaths and for another five deaths the earthquake was estimated to have played an indirect role. There were 15 buildings associated with three or more deaths each (accounting for 58% of deaths with a known location). Many of these buildings were multi-storey and involved unreinforced masonry - with some of this falling into the street and killing people there (19% of deaths). In contrast, deaths in homes, which were typically of wood construction and single stories, comprised only 3% of deaths. In conclusion, this earthquake had a relatively high injury impact that appears partly related to the lack of regulations for building construction that would mitigate earthquake-related risk. Such regulations continue to be of relevance for New Zealand and for other countries in earthquake zones.

Medical provision and urban-rural differences in maternal mortality in late nineteenth century Scotland.

This paper examines the effect of variable reporting and coding practices on the measurement of maternal mortality in urban and rural Scotland, 1861-1901, using recorded causes of death and women who died within six weeks of childbirth. This setting provides data (n = 604 maternal deaths) to compare maternal mortality identified by cause of death with maternal mortality identified by record linkage and to contrast urban and rural settings with different certification practices. We find that underreporting was most significant for indirect causes, and that indirect causes accounted for a high proportion of maternal mortality where the infectious disease load was high. However, distinguishing between indirect and direct maternal mortality can be problematic even where cause of death reporting appears accurate. Paradoxically, underreporting of maternal deaths was higher in urban areas where deaths were routinely certified by doctors, and we argue that where there are significant differences in medical provision and reported deaths, differences in maternal mortality may reflect certification practices as much as true differences. Better health services might therefore give the impression that maternal mortality was lower than it actually was. We end with reflections on the interpretation of maternal mortality statistics and implications for the concept of the obstetric transition.

We could learn much more from 1918 pandemic-the (mis)fortune of research relying on original death certificates.

PURPOSE: The analysis of historical death certificates has enormous potential for understanding how the health of populations was shaped by diseases and epidemics and by the implementation of specific interventions. In Brazil, the systematic archiving of mortality records was initiated only in 1944-hence the analysis of death registers before this time requires searching for these documents in public archives, notaries, parishes, and especially ancient cemeteries, which are often the only remaining source of information about these deaths. This article describes an effort to locate original death certificates in Brazil and document their organization, accessibility, and preservation. METHODS: To this end, we conducted an exploratory study in 19 of the 27 Brazilian states, focusing on the period surrounding the 1918 influenza pandemic (1913-1921). We included 55 cemeteries, 22 civil archives, and one military archive. RESULTS: Apart from few exceptions, the results show the absence of a curatorial policy for the organization, access or even physical preservation of this material, frequently leading to unavailability, deterioration, and ultimately its complete loss. CONCLUSIONS: This study indicates the need to promote the preservation of a historical heritage that is a key to understanding historical epidemiological patterns and human responses to global health threats.

Respuesta: Autopsia judicial y autopsia clínica / Reply: Forensic autopsy and clinical autopsy

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An integrated national mortality surveillance system for death registration and mortality surveillance, China.

In China, sample-based mortality surveillance systems, such as the Chinese Center for Disease Control and Prevention's disease surveillance points system and the Ministry of Health's vital registration system, have been used for decades to provide nationally representative data on health status for health-care decision-making and performance evaluation. However, neither system provided representative mortality and cause-of-death data at the provincial level to inform regional health service needs and policy priorities. Moreover, the systems overlapped to a considerable extent, thereby entailing a duplication of effort. In 2013, the Chinese Government combined these two systems into an integrated national mortality surveillance system to provide a provincially representative picture of total and cause-specific mortality and to accelerate the development of a comprehensive vital registration and mortality surveillance system for the whole country. This new system increased the surveillance population from 6 to 24% of the Chinese population. The number of surveillance points, each of which covered a district or county, increased from 161 to 605. To ensure representativeness at the provincial level, the 605 surveillance points were selected to cover China's 31 provinces using an iterative method involving multistage stratification that took into account the sociodemographic characteristics of the population. This paper describes the development and operation of the new national mortality surveillance system, which is expected to yield representative provincial estimates of mortality in China for the first time.

En Chine, des systèmes de surveillance de la mortalité fondés sur des échantillons (comme le système à points de surveillance des maladies du Centre chinois pour le contrôle et la prévention des maladies et le système d'enregistrement des données d'état civil du ministère de la Santé) sont utilisés depuis plusieurs dizaines d'années pour obtenir des données représentatives à l'échelle nationale de la situation sanitaire, en vue d'éclairer les processus décisionnels en matière de santé et d'évaluer les résultats. Or, aucun de ces systèmes traditionnellement utilisés ne proposait de données représentatives sur la mortalité et les causes de décès à l'échelle provinciale, pourtant nécessaires pour correctement définir les priorités et les besoins régionaux en matière de politiques de santé. Par ailleurs, ces systèmes étaient largement redondants entre eux, ce qui impliquait donc une duplication inutile des efforts. En 2013, le gouvernement chinois a fusionné ces deux systèmes dans un système national intégré de surveillance de la mortalité afin d'obtenir une image représentative à l'échelle provinciale de la mortalité totale et de la mortalité par cause et d'accélérer la création d'un système exhaustif d'enregistrement des données d'état civil et de surveillance de la mortalité pour tout le pays. Ce nouveau système a permis d'augmenter la couverture de la surveillance (de 6% de la population chinoise couverte auparavant à 24%). Le nombre de points de surveillance (chacun couvrant un district ou un comté) est passé de 161 à 605. Pour garantir une bonne représentativité à l'échelle provinciale, les 605 points de surveillance ont été sélectionnés de manière à couvrir les 31 provinces chinoises à l'aide d'une méthode itérative impliquant une stratification à plusieurs degrés qui a tenu compte des caractéristiques sociodémographiques de la population. Cet article décrit l'élaboration et le fonctionnement de ce nouveau système national de surveillance de la mortalité, qui devrait permettre d'obtenir pour la première fois des estimations représentatives à l'échelle provinciale de la mortalité en Chine.

En China, los sistemas de vigilancia de la mortalidad basados en muestras, tales como el sistema de puntos de vigilancia de las enfermedades del Centro de Prevención y Control de Enfermedades de China y el sistema de registro civil del Ministerio de Salud, se han utilizado durante décadas para proporcionar datos nacionalmente representativos del estado de salud para tomar decisiones médicas y evaluaciones de rendimiento. Sin embargo, ningún sistema ofrecía datos representativos en cuanto a defunciones y las causas de las defunciones a un nivel provincial con el objetivo de informar de las necesidades de servicios sanitarios regionales y las prioridades de la política. Asimismo, los sistemas se solapaban hasta un punto considerable, lo que suponía una duplicación de los esfuerzos. En 2013, el gobierno chino combinó estos dos sistemas en un sistema nacional integrado de vigilancia de la mortalidad para proporcionar una imagen provincialmente representativa de la mortalidad total y de la mortalidad por causas específicas y para acelerar el desarrollo de un registro civil completo y un sistema de vigilancia de la mortalidad para todo el país. Este nuevo sistema aumentó la población de vigilancia de un 6 a un 24% de la población china. El número de puntos de vigilancia, donde cada uno cubría un distrito o condado, subió de 161 a 605. Con el objetivo de garantizar una representación a nivel provincial, los 605 puntos de vigilancia se seleccionaron para cubrir las 31 provincias de China mediante la utilización de un método iterativo que consistía en una estratificación de etapas múltiples que tenía en cuenta las características sociodemográficas de la población. Este artículo describe el desarrollo y funcionamiento del nuevo sistema nacional de vigilancia de la mortalidad, el cual se espera que aumente las estimaciones provinciales representativas de mortalidad en China por primera vez.

Causas de mortalidad por enfermedades del aparato circulatorio en Jerez de los Caballeros (Badajoz) en el siglo XIX / Causes of death due to circulatory system diseases in horsemen of Jerez (Badajoz) in the 19th century

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Mortality of first world war military personnel: comparison of two military cohorts.

OBJECTIVE: To identify the impact of the first world war on the lifespan of participating military personnel (including in veterans who survived the war). DESIGN: Comparison of two cohorts of military personnel, followed to death. SETTING: Military personnel leaving New Zealand to participate in the first world war. PARTICIPANTS: From a dataset of the New Zealand Expeditionary Forces, we randomly selected participants who embarked on troopships in 1914 and a comparison non-combat cohort who departed on troopships in late 1918 (350 in each group). MAIN OUTCOME MEASURES: Lifespan based on dates of birth and death from a range of sources (such as individual military files and an official database of birth and death records). RESULTS: A quarter of the 1914 cohort died during the war, with deaths from injury predominating (94%) over deaths from disease (6%). This cohort had a significantly shorter lifespan than the late 1918 "non-combat" cohort, with median ages of death being 65.9 versus 74.2, respectively (a difference of 8.3 years shown also in Kaplan-Meier survival curves, log rank P<0.001). The difference for the lifespan of veterans in the postwar period was more modest, with median ages of death being 72.6 versus 74.3, respectively (a difference of 1.7 years, log rank P=0.043). There was no evidence for differences between the cohorts in terms of occupational class, based on occupation at enlistment. CONCLUSIONS: Military personnel going to the first world war in 1914 from New Zealand lost around eight years of life (relative to a comparable military cohort). In the postwar period they continued to have an increased risk of premature death.

La mortalidad por tuberculosis en El Puerto de Santa María (1923-1926) / A mortalidade por tuberculose em Puerto de Santa María (1923-1926) / Tuberculosis mortality in El Puerto de Santa María (1923-1926)

La principal causa de mortalidad en El Puerto de Santa María (Cádiz) durante 1923-1926 es la tuberculosis. El objetivo es analizar la mortalidad por Tuberculosis en dicha localidad durante 1923 a 1926, relacionándola con los principales determinantes epidemiológicos, contribuyendo a la interpretación de la realidad sanitaria de la época. Estudio descriptivo, longitudinal de la mortalidad por tuberculosis en El Puerto durante 1923 a 1926. Las fuentes fueron los libros de Actas de defunción del registro civil. Se realizó el análisis estadístico de las variables (causa de defunción, sexo, edad, etc..), con el programa SPSS 15.0. El total de defunciones por tuberculosis fueron 217 (13,7%) y la Tasa de Mortalidad específica de 28,22 por diez mil habitantes. Atendiendo al sexo, el 54% (117) corresponden a hombres y el 46% (100) a mujeres. Las conclusiones son: 1. La Tuberculosis es la primera causa de mortalidad en El Puerto entre 1923-1926. 2. El patrón que sigue la mortalidad por tuberculosis en El Puerto es superponible al del resto de la provincia. 3. Es necesario una serie temporal más amplia para poder asignar la causa del descenso de las defunciones en 1926 a las mejoras de las condiciones higiénico-sanitarias derivadas de la actuación institucional (AU)

The main cause of mortality in El Puerto de Santa María (Cádiz) between 1923 and 1926 was tuberculosis. Our aim is to analyse the tuberculosis mortality rate in this town between 1923 and 1926 and to link it to the principal epidemiological determinants in order to describe the health and sanitary conditions in those years.Descriptive and longitudinal study of the tuberculosis mortality in El Puerto de Santa María between 1923 and 1926. Our information sources were the entries in the register of deaths. A statistical analysis of the variables was carried out (death cause, sex, age, etc…), with the programme SPSS15.0. The total amount of deaths caused by tuberculosis was 217 (13,7 %) and the specific mortality rate was 28,22 in 10,000 inhabitants. 54% (117) were males and 46% (100) females. We can conclude:1. Tuberculosis was the first cause of death in El Puerto between 1923 and 1926.2. The tuberculosis mortality standards are similar in the rest of the province of Cadiz. 3. It would be necessary to perform a deeper study to know whether the cause of the decrease in the mortality rate in 1926 was a consequence of an improvement in health and sanitary policies (AU)

A principal causa de mortalidade em Puerto de Santa María (Cádiz) entre os anos de 1923 e 1926 é a tuberculose. O objetivo é analisar a mortalidade por tuberculose nesta localidade durante o período de 1923 a 1926, relacionando-a com os principais determinantes epidemiológicos, contribuindo para a interpretação da realidade sanitária da época. Trata-se de um estudo descritivo, longitudinal, da mortalidade por tuberculose em Puerto de Santa María de 1923 a 1926. As fontes foram os registos de óbitos do Registo civil. Realizou-se uma análise estatística das variáveis (causa de morte, sexo, idade...), com o programa SPSS 15.0. O total de óbitos por tuberculose foi de 217 (13,7%) e a Taxa de Mortalidade específica de 28,22 por dez mil habitantes. Relativamente ao sexo, 54% (117) correspondem a homens e 46% (100) a mulheres. As conclusões são as seguintes: 1. A tuberculose é a primeira causa de mortalidade em Puerto de Santa María entre 1923-1926. 2. O padrão de tuberculose na localidade é superior ao do resto da província. 3. É necessária uma série temporal mais ampla para poder atribuir a causa da descidados óbitos em 1926 à melhoria das condições higiénico-sanitárias derivadas da atuação institucional (AU)

Was what ail'd ya what kill'd ya?

Making use of those Union Army veterans for whom death certificates are available, we compare the conditions with which they were diagnosed by Civil War pension surgeons to the causes of death on the certificates. We divide the data between those veterans who entered the pension system early because of war injuries and those who entered the pension system after the 1890 reform that made it available to many more veterans. We examine the correlation between specific medical conditions rated by the surgeons and death causes to gauge support for the hypothesis that death is attributable to something specific. We also examine the correlation between the accumulation of rated conditions to the length of time until death to gauge support for the "insult hypothesis." In general, we find support for both hypotheses. Examining the hazard ratios for dying of a specific condition, there is support for the idea that what ail'd ya' is what kill'd ya'.

'Visitation by God': rationalizing death in the Victorian asylum.

This article argues that death from insanity raised serious questions for the medical profession and for those who promoted the public asylum movement in the nineteenth century. While the medical emphasis on the somatic origins of insanity was increasingly accepted, limited observable signs of disease in the brain at post-mortem made it difficult to explain cause of death. This posed problems for a growing county asylum movement which was justified on the basis that insanity was a treatable disease and thus mortality rates would naturally decline. As asylum populations continued to grow and mortality rates remained little changed, statistics on lunacy ultimately became not the predicted measure of success but instead clear evidence of failure.

La mortalidad infantil en Valle de la Pascua: durante el Gomecismo: 1908-1935 / Infant mortality in Valle de la Pascua: during the Gomez era: 1908-1935

Un analisis de las partidas de defunción de 614 párvulos fallecidos en Valle de la Pascua, Estado Guárico, durante el período 1908-1935 reveló que el patrón de mortalidad infantil (0 a 11 meses de edad) fue un reflejo de las precarias condiciones socieconómicas y médico-sanitarias de la época. Dicho patrón, el cual asemejó al patrón del resto de Venezuela, se caracterizó por una elevada tasa de mortalidad, un alto índice de mortalidad por enfermedades infecciosas y una elevada mortalidad neonatal. también, la mortalidad infantil masculina exhibió una tendencia a la hipermortalidad como se ha revelado en estudios similares a nivel mundial. Por último, el estudio también reveló que un poco más del 20% de las defunciones fueron clasificadas como "mal definidas". Esto tal vez se debió a varios factores, entre ellos, la falta de un facultativo para atender al enfermo, la falta de recursos económicos por parte de los familiares del occioso para procurar asistencia médica y/o la negligencia de algunos facultativos al certificar la causa de muerte

An analysis of the death certificates for 614 infants who died in Valle de la Pascua, Guarico State, during the period 1908-1935, revealed that pattern of infant mortality (0 to 11 months of age) was a reflection of the precarious socio-economic and sanitary conditions of the time. This pattern, with resembled the pattern of the rest of Venezuela, was characterized by a high mortality rate high rate of mortality from infectious disease, and a high neonatal mortality. Also, the male infant mortality showed a tendency to hypermortality as found in similar studies worldwide. Finally, the study also revealed that just over 20% of the deaths were classified as "ill-defined". This was perhaps due to various factors, among them, the lack of a doctor to treat the sick child, the lack of financial resources by the deceased's family wihich prevented them from seeking medical assistence, and/or negligence on the part of some doctors when certitying the cause of death

Uma análise dos atestados de óbito de 614 crianças que morreram no Valle de la Pascua, estado Guárico durante o periodo 1908-1935 revelow que o padrâo de mortalidade infantil (0 a 11 meses de idade) foi un reflexo das más condiçôes socieconómicas e médico sanitarias da época. Esse padrâo que se assemelhou ao resto da Venezuela caracterizou-se por uma elevada taxa de mortalidade, alta taxa de mortalidade por doenças infecciosas e uma elevada mortalidade infantil. También na mortalidade masculina mostrou uma tendência de hipermortalidade como se revelou em estudios semelhantes em todo o mundo. Finalmente, o estudio también revelou que um pouco mais de vinte por cento mortes foram classificadas como "mal definidas". Isto talvez foi devido a varios fatores, incluindo, a falta de um médico para atender o doente, a falta de recursos económicos por parte dos familiares do falecido para procurar um medico e/ou negligência de alguns médicos encarregados de certificar a causa da morte

Differential tuberculosis deaths among a late nineteenth and early twentieth century New York City population: an analysis of death certificate data.

PURPOSE: This paper explores population substructure through an analysis of 8,691 individual death certificates representing a native-born New York City (NYC) population and a European Immigrant population who died from tubercular infection in Manhattan, NYC, 1890-1930. From the death certificate data, four classes of tubercular infection were derived: pulmonary, chronic pulmonary, acute/miliary tuberculosis, and tubercular meningitis. The United Nations classification system was used to categorize the European regions of birth listed on the death certificates resulting in four international regions of birth (Western, Northern, Eastern, and Southern Europe) and NYC. Using these data, the correlation between region of birth, age, sex, and the type of tubercular infection causing death was examined. Through a chi-square analysis, the data demonstrated that region of birth influenced the type of tuberculosis (TB) from which an individual died. An ANOVA test determined there was a significant relationship between mean age and type of tubercular infection, sex, and region of birth. The results of this analysis lead to the conclusion that: (1) historical vital records, specifically death certificate data, are useful when exploring tuberculosis variability among historical populations; and (2) these data may provide useful information when designing and implementing current policy to control and prevent TB.

[Diseases and causes of death of outstanding creative and scientific figures of XVII-XX centuries].

The article reviewed the literature which analyzes clinical symptoms and causes of some creative and scientific figures of XVII-XX centuries. A conclusion has been made that there are not enough works with professional retrospective investigation of somatic diseases and causes of death of ukrainain outstanding cultural and scientific people in today's national medical literature.

[The fatal story--Ibsen's health during the last years of his life]. / Den fatale historie--Ibsens helse i hans siste år.

In contrast to Henrik Ibsen's literary work, the author's health during the last years of his life has not attracted much attention. Ibsen suffered from a variety of symptoms due to arteriosclerotic cardiovascular disease. He was first hit by a stroke in March 1900, which resulted in paresis of his left foot. During the summer 1900 he was ill with erysipelas. Thereafter, in 1901 and in 1903, he was hit by two more strokes, which left him with severe right hemiparesis and aphasia. Ibsen's varying health might indicate that he was hit by several additional minor stokes in both hemispheres, most likely tromboembolic cerebral infarcts. During his last years he developed symptoms of cardiac failure, and it was probably an increasing cardiac failure that led to the cardiac arrest that ended his life.