Preweaning mortality in piglets is a welfare issue, as well as an ethical and economic concern in commercial pig farming. Studying the causes of preweaning mortality and their prevalence is necessary to reduce losses. Preweaning piglet mortality was investigated in a field study including 347 sows from 14 loose-housed Norwegian piglet-producing herds. A total of 5254 piglets were born in these herds during the study period, and 1200 piglets were necropsied. The cause of death was based on pathoanatomical diagnosis (PAD). Preweaning mortality of all piglets in the study was 23.4%, including 6.3% stillborn. The two main causes of preweaning mortality in live-born piglets (n=4924) were trauma (7.1%) and starvation (2.7%). Piglets dying of an infection accounted for 2.0%. Among the necropsied piglets (n=1200), 29.1% had died due to trauma, 26.8% were categorized as stillborn and 11% had died of starvation. Piglets that had died of trauma, had a mean time of death of 1 lactation day (LD 1), ranging from LD 0 to LD 21. The mean time of death of piglets that died due to bacterial infection was LD 9, ranging from LD 0 to LD 31, with Escherichia coli accounting for most infections found in necropsied piglets. Farmers were able to identify death by trauma in piglets, but were less able to identify death due to hunger. Most piglets that died in the preweaning period, died of trauma. Surprisingly, this included large and well-fed piglets. The second most prevalent cause of preweaning mortality was starvation. Improved monitoring may reveal piglets with low body mass index, and additional nutrition may contribute to increase the survival rate.

This paper applies cointegration techniques, developed in econometrics to model long-run relationships, to cause-of-death data. We analyze the five main causes of death across five major countries, including USA, Japan, France, England & Wales and Australia. Our analysis provides a better understanding of the long-run equilibrium relationships between the five main causes of death, providing new insights into similarities and differences in trends. The results identify for the first time similarities between countries and genders that are consistent with past studies on the aging processes by biologists and demographers. The insights from biological theory on aging are found to be reflected in the cointegrating relations in all of the countries included in the study.

Objective - Gathering, comparing and, if possible, commenting on datas and experimental evidences which have emerged in the principal literary works about mortality and psychiatric patients' causes of death. Particularly finding an answer (and a possible explanation) to some of the most important questions about these matters: does a psychiatric patient die easier than a healthy man? Does a correlation exist between nosographic diagnosis and causes of death? Finally do factors of risk, which are connected with death, exist? Method - The principal bibliographies which exist in national and international literature, from the middle of the last century until present days, have been consulted. Results - Essential agreement among existing dates in literature have emerged. Psychiatric patients dies easier than healthy man: rates of mortality have fallen from 6-7 (SMR), value of the middle of 1800 to 1,5-3 which is the value of present days. Respiratory, cardiovascular and, still, infectious diseases are the most important causes of death. There is not agreement about deaths caused by cancer. Some researchers affirm the protective action of psychiatric disease against the rising and diffusion of cancer. Non natural deaths (in primis suicide and accidental deaths) are rapresented too. All diagnostic categories (from alcholism to homosexuality, from organic brain disorders to schizophrenia) have a high risk of death while affective disorders have to be studied further. Young people have the highest risk. Conclusions - The frequency of physical beside psychic disease suggests to pay more attention to patient's general conditions even by some diagnostic ascertainments (TAC, RMN, etc) which are able to identify the most disabling conditions for the prognosis (diabetes, arterial hypertension, organic cerebral syndromes, etc).

This paper examines population trends, age-specific death rates and causes of death for the elderly Sami and settlers during the colonisation era (between 1750 and 1900). The source material is a set of data files from the Demographic Data Base (DDB) at Umeå University that covers parish records from three different parishes. Early in the colonisation period (1750–1840) the Sami had a lower proportion of the elderly population (⩾60 years old), compared to the non-Sami and the rest of Sweden. At the end of the colonisation period (1841–1900), the proportion of elderly Sami increased and was above the proportion of elderly non-Sami and more similar to the rest of Sweden. The analysis also reveals that the differences in mortality rates among the elderly Sami and their non-Sami counterparts diminished during the entire colonisation era (1750–1900), mainly because of an increased infant mortality among the non-Sami. Rather than ethnic differences in causes of death, the results show larger differences between the parishes. The study can conclude that the Sami population's mortality declined, the health improved, and the Sami advanced more rapidly in the model of epidemiologic transition, a milestone not yet reached by other indigenous people around the world.

L’étude des causes de décès des malades mentaux, tous diagnostics psychiatriques confondus,confirme les observations internationales déjà faites.

La surmortalité des malades mentaux hospitalisés ne concerne pas seulement les causes non naturelles de décès c’est-à-dire les accidents et les suicides. Certes, la surmortalité est retrouvée pour les accidents et les suicides, différemment d’ailleurs selon le sexe. Les accidents concernent davantage les femmes ; les suicides concernent plus particulièrement les hommes.

Toutefois, jusqu’à 34 ans, le ratio des suicides féminis est plus élevé que celui des hommes.

La surmortalité s’observe également pour des causes naturelles de décès comme les maladies de l’rctairlcituel ast’ooibrsee rovue leegsa lmemalaednite ps oduer dl’appareil circulatoire ou les maladies de l’appareil respiratoire. Pour cette dernière causes de décès la surmortalité est très accusée. Elle est importante également pour les symptômes, signes et états morbides mal définis surtout chez les femmes.

Les tumeurs constituent la seule cause naturelle de décès pour laquelle une surmortalité n’est pas observée. Toutefois, on peut émettre l'hypothèse que pour cette maladie les patients sont plus souvent dirigés vers des services spécialisés et que, de ce fait, un certain nombre de décès par cancer ont lieu en dehors de l'hôpital psychiatrique. On doit donc rester prudent quant à l’interprétation de l’absence observée de surmortalité par cancer dans cette étude.