PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “Maternal Mortality--statistics”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 37 records · Page 2Linked to original sources

Secular trends in maternal mortality in Sweden from 1750 to 1980.

Mortality statistics have been kept continuously in Sweden since 1750 and reveal that the maternal mortality rate declined from 900 to 6 per 100 000 live births over the period 1750 to 1980. Two-thirds of this decrease occurred during the 19th century and the remainder in the 20th century. In the 18th century, 10% of deaths among women aged between 15 and 49 years were due to complications at parturition, but today this accounts for only 0.2% of deaths in women of this age group. Life-table analysis indicates that 1 out of 29 women in Sweden lost her life in parturition during the 18th century, while today only 1 out of 1000 women dies as a result of complications during pregnancy and parturition.

Adolescent↗

[Definition and classification of perinatal mortality].

Analysis of problems related to the classification of perinatal mortality was made possible through the evaluation of data collected from the medical records of nine maternity hospitals in South-Hainaut. Medical records of 135 fetal and early neonatal deaths were investigated. Perinatal mortality statistics were compiled on the basis of five different definitions of perinatal mortality. Depending on which definition was used, perinatal mortality varied between 10.2% and 15.1%. This study shows that reporting of perinatal mortality in hospital registries according to the legal requirement is incomplete. Standard data should be collected for each pregnancy product, on the basis of clearly defined, national and international accepted definitions. It is suggested that the 1975 recommendations of the World Health Organization (International Classification of Diseases, 9th edition), be used for definition and classification of perinatal mortality.

Belgium↗

Childhood morbidity and mortality in a large hospital over last four decades.

Pediatric statistics in a 50-year-old large hospital were analysed to find out any change in pediatric admission rate, morbidity and mortality and outcome of common disorders during the last four decades. Information was collected from four block years from each of the last four decades and compared. An increase of almost 250% in the total pediatric admissions as compared to an increase of 150% in total hospital admissions over last four decades suggest an increased awareness of maternal and child health by the community. The pediatric mortality excluding neonates has not shown a significant fall over the last four decades, being 14.6, 12.7 and 13.0% in 1955-1958, 1974-1977 and 1984-1987, respectively. Diarrheal disorders, pneumonia, tetanus and infections of central nervous system continue to remain the common causes of hospital admissions in children. The morbidity and mortality in these disorders, in general, have shown a significant decline though less appreciable in pyogenic meningitis, encephalitis and tetanus cases.

Brain Diseases↗

The quality of perinatal care in small rural hospitals.

Iowa birth and mortality statistics were reviewed to ascertain the outcome of perinatal care provided in hospitals with different-sized obstetric services. Although the data do not resolve the issue of the minimum number of deliveries necessary to ensure quality perinatal services, they do suggest that hospitals with small maternity services (fewer than 500 deliveries per year) can achieve acceptable perinatal outcomes when appropriate high-risk screening and prenatal referral occur.

Adolescent↗

Factors involved in immunization program for swine influenza.

The decision to undertake a nationwide program of vaccination against swine influenza requires assessment of the status of immunity of those in various age groups in our population against this agent. Pools of serum were collected from persons born in the years from 1889 to 1943; they were tested for hemaggultinin inhibiting (HI) antibody against the HSW 1N1 influenza virus strains isolated in 1931 and 1976. The titers secured serve as an indication of the average level of immunity of those of different ages. Persons less than 43 years of age are found to be without antibody protection. The need for vaccination of people in different age groups based on mortality statistics of previous epidemics is evaluated. It is realized that no epidemic may occur and that a reduced virulence of the viral agent and use of antibiotics may reduce the death rate if the infection recurs. The extraordinary high mortality in 1918 in people between 15 and 44 years of age deserves recognition together with the fact that those in the same age group are now without protection. The fact that women of childbearing age fall into this group deserves special consideration in view of increased mortality in puerperal women observed in the pandemics of 1918 and 1957. The degree of protection afforded the newborn by transplacental transmission of maternal antibodies is discussed. The need of increasing the level of immunity in those who have varying titers of HI antibodies is considered in relation to the prevalence of cardiopulmonary complications and other chronic diseases in older subjects.

Adolescent↗

Breech births in twin pregnancy: an analysis of Apgar score and perinatal mortality from a Nigerian sample.

Perinatal mortality (PNM) rates are reported for 146 twin-1 and 192 twin-2 breech births among 622 consecutive twin pairs delivered at the University of Ilorin Teaching Hospital, Ilorin, Nigeria. Stillbirths and infants with severe asphyxia (Apgar score 1-3) were recorded in significant proportions of both first and second twin breech infants. PNM rates were 13.7% twin-1, 18.8% twin-2; corrected PNM for infants weighing 2.0 kg or more, were 9.3% and 12.4% for twin-1 and twin-2, respectively. Twin specific breech PNM decreased with increasing birthweight of first and second twin to a low optimum in the weight group 2.5-2.9 kg, and thereafter rose for both first and second twin with birthweight 3.0 kg and above. Factors such as low birthweight, breech/breech presentation, breech extraction and retained second twin breech contributed significantly to the high PNM rates. More favorable PNM rates were recorded among a limited number of breech infants delivered by primary cesarean section for breech/breech or first twin breech presentations. A liberal approach to cesarean section delivery for breech twin births, and particularly for paired breech/breech presentations is strongly advocated.

Apgar Score↗

In utero exposure to steroid contraceptives and survival during infancy.

A cohort study was conducted in Chiang Mai, northern Thailand, in 1,431 children of women who had used the injectable contraceptive Depo-Provera (The Upjohn Company, Kalamazoo, Michigan), 565 children of women who had used oral contraceptives during pregnancy, and a group of 2,307 control infants with no hormonal contraceptive exposures. In follow-up interviews, information was obtained on stillbirths and deaths. Cause of death was ascertained by interview, death certificate, or medical record, and underlying causes of death were ascribed by a panel. The children exposed in utero to Depo-Provera had higher neonatal and infant mortality rates (44.3 and 62.9 per 1,000 live births, respectively) than did the controls (19.8 and 29.1 per 1,000 live births). Mortality in infants exposed in utero to oral contraceptives was intermediate between that in the other two groups. Adjustment by logistic regression showed no significantly increased risk of mortality among infants exposed to oral contraceptives, but the odds ratio for death was significantly increased with Depo-Provera exposures due to accidental pregnancy (odds ratio (OR) = 1.8 (95% confidence interval (Cl) 1.1-3.0) for neonatal deaths; OR = 2.0 (95% Cl 1.3-3.2) for infant deaths). Adjustment for low birth weight reduced the risks, suggesting that low birth weight may act as an intermediate determinant of Depo-Provera-associated mortality. Among the accidental pregnancies with Depo-Provera, there was a relation between shorter injection-to-conception intervals, when maternal blood levels of the drug are high, and an increased risk of mortality. The odds ratios for neonatal mortality were 2.5 (95% Cl 1.1-5.7), 2.1 (95% Cl 1.0-4.6), and 0.9 (95% Cl 0.4-2.4) for injection-to-conception intervals of less than or equal to 4, 5-8, and greater than 9 weeks, respectively. Adjustment for low birth weight reduced these risks. Chi-square tests for trend were highly significant. Similar associations were also observed between Depo-Provera accidental pregnancies and risks of low birth weight. Thus, infants from accidental pregnancies that occur 1-2 months after a 150-mg Depo-Provera injection may be at increased risk for low birth weight and death. However, the attributable risk is low, because such pregnancies are uncommon.

Cause of Death↗

The influence of in-utero transfer on perinatal mortality in a tertiary care centre.

From March 1, 1986 through February 28, 1989 inclusive there was a total of 8,319 births with a birth-weight of 500 g or more at Royal North Shore Hospital (RNS). Three hundred and sixty one births (4.3%) resulted from in-utero transfer of high risk pregnancies (IUT); the remainder were booked at RNS. There were 141 perinatal deaths of which 55 (39%) occurred in infants transferred in-utero. For the whole population delivered at RNS the perinatal mortality rate was 17.0/1,000 births (10.8/1,000 for booked patients versus 152.4/1,000 for IUT births), the stillbirth rate was 7.1/1,000 births (5.4/1,000 for booked patients versus 44.3/1,000 for IUT births) and the neonatal mortality rate was 9.9/1,000 livebirths (5.4/1,000 for booked patients versus 113.0/1,000 for IUT livebirths). These data show that crude perinatal mortality statistics from individual hospitals do not necessarily reflect their standard of care. Although the infants transferred in-utero comprised only 4.3% of the total population they constituted more than one third of the perinatal deaths at RNS. Their very high group specific mortality rates are related to their degree of prematurity and associated maternal and neonatal conditions.

Female↗

Increased risk of death from measles in children with a sibling of opposite sex in Senegal.

OBJECTIVE: To examine whether contracting measles from a sibling of the opposite sex affects mortality. DESIGN: Prospective registration during 15-20 years of all births and deaths, including 243 measles related deaths. Measles infection was not registered; however, as in fatal cases measles was probably contracted from a maternal sibling the risk of dying during measles outbreaks was examined in families with two boys, two girls, or a boy and a girl. SETTING: 31 small villages in two rural areas of eastern Senegal. SUBJECTS: 766 children living in families with two children aged under 10 years during outbreaks of measles, 107 (14%) of whom died of measles. MAIN OUTCOME MEASURE: Deaths from measles, size of village, age and sex of maternal siblings. RESULTS: The interval between outbreaks in the same village was greater than 10 years. The risk of dying of measles was significantly related to age, increasing with the age difference between siblings and decreasing with the size of village. In a multiple logistic regression analysis adjusting for these background factors, children in families with a boy and a girl had a significantly higher mortality than children in families with two boys or two girls (odds ratio = 1.81, 95% confidence interval 1.17 to 2.82). The increase in risk was the same for boys and girls in families with two children one of whom was a boy and one a girl. CONCLUSION: Cross sexual transmission may be an important determinant of severity of measles infection.

Age Factors↗

Mortality trends in Abidjan, Côte d'Ivoire, 1983-1988.

To assess changes in mortality in Abidjan since the development of the AIDS epidemic, we compared official city mortality statistics and hospital fatality rates in 1983, before AIDS was recognized in Abidjan, with those in 1988. Review of records in the city's major hospitals showed that fatality rates (deaths per 1000 admissions) in adult medical patients increased by 54% between 1983 and 1988, with increases of 106 and 98% in men 20-29 and 30-39 years of age, respectively, and 199 and 42% in women of the same age ranges. Mortality rates in surgical patients showed little change, while in children they declined. Over the same period, official mortality statistics for the city showed reduced mortality rates in children and women 20-29 years of age, but an increase in mortality rates of 54% in men 20 years of age and older, and of 28% in women aged 30 years and older. HIV infection may be a major cause of the increased adult mortality documented in hospital and city records, and jeopardizes improved survival from preventive measures such as maternal and child health services.

Acquired Immunodeficiency Syndrome↗

Perinatal mortality statistics in Harare 1980-1989.

Perinatal and neonatal mortality rates, in the Greater Harare Maternity Unit, which showed a modest decline from 1980 to 1985, have rise dramatically since then. Half of the rise in neonatal mortality rate is due to increased numbers and an increased mortality rate in babies of birth weight less than 1001g. There is also an increase in the numbers of deaths of large babies. There is a strong case for a broad-based on-going enquiry into the reasons for such changes.

Birth Rate↗

Nutrition and health in China, 1949 to 1989.

Since the establishment of a new social order in 1949, China's attempts to feed and nurture its large population has been a topic of serious study in many disciplines. This review focuses on dietary sources of Chinese population and incidence, increase and decline of important diet related health disorders in China during the last four decades. Literature published since 1949 on goiter, rickets, riboflavin deficiency, beri beri, vision impairment, favism, cancer, atherosclerosis and coronary heart disease, hypertension, dental and smoking related diseases, diabetes mellitus, pancreatitis, lactose intolerance, mineral deficiency, Kashin-Beck disease, parasitic diseases and genetic disorders are reviewed. Also presented selectively are reports related to ethnodietetics, health care, maternal health and pediatric care as well as longevity. In the 1980s, total caloric intake of Chinese population showed a 19% increase on a daily basis from that of late 1940s. In overall terms, plant derived foods supplied 93% of energy, 87% of protein and 55% of fat to the Chinese. Among the animal foods, pork remains the most common and least expensive form of meat, contributing more than 90% of China's total meat production excluding poultry and fish. In 1949, the life expectancy in China was only 36 years. In early 1980s, it has increased to 68 years. This increase in life expectancy is attributed mostly to improved nutrition and lowering of mortality due to decrease in infectious diseases. Though population, disease and mortality statistics of modern China are spotty and sometimes questionable, common consensus among the researchers is that since 1949 the public health situation in China has improved tremendously.

China↗

Causes of death: an assessment of global patterns of mortality around 1985.

Cause-of-death statistics are available for virtually the entire population of the developed world (1.17 billion in 1985) and thus estimates of the mortality pattern in these countries can be made with some confidence, notwithstanding the artefacts which arise due to differences in diagnostic and certification practices between countries. In the developing countries, cause-of-death estimation is much more difficult due to the paucity of mortality statistics. Nonetheless, there are several sources of information on mortality, ranging from surveillance systems and small-scale community studies to complete vital registration, which can be exploited to estimate mortality patterns. Of the 50 million deaths which occur throughout the world each year, roughly 39 million (78%) occur in developing countries. For the developing countries as a whole, infectious and parasitic diseases are estimated to have accounted for almost one-half of all deaths in 1985. Diarrhoeal diseases, acute respiratory diseases (primarily pneumonia) and tuberculosis each claimed about 3-5 million deaths in the developing world in the mid-1980s, with a further 2.6 million due to measles and whooping cough. Perinatal conditions are estimated to have been responsible for a little over 3.2 million deaths in 1985 in developing countries, one-quarter of which were due to neonatal tetanus alone. Maternal causes claimed the lives of about 0.5 million women. At the same time, the chronic diseases are emerging as a leading cause of death in several regions of the developing world, particularly Latin America and East Asia. Circulatory and specific degenerative diseases are estimated to have caused about 6.5 million deaths in 1985. Chronic lung diseases and cancer are each thought to have claimed about 2.5 million lives in 1985. External causes also probably accounted for 2.0-2.5 million deaths.

Australia↗

Birth weight-specific causes of infant mortality, United States, 1980.

To describe underlying causes of infant death by birth weight, we used data from the 1980 National Infant Mortality Surveillance project and aggregated International Classification of Diseases codes into seven categories: perinatal conditions, infections, congenital anomalies, injuries, sudden infant death syndrome (SIDS), other known causes, and nonspecific or unknown causes. Compared with heavier infants, infants with birth weights of 500-2,499 grams (g) are at increased risk of both neonatal and postneonatal death for virtually all causes. Sixty-two percent of neonatal deaths (under 28 days of life) were attributed to "conditions arising in the perinatal period," as defined using codes from the International Classification of Diseases. Prematurity-low birth weight and respiratory distress syndrome (RDS) were the leading causes of such deaths among infants with birth weights of 500-2,499 g, while birth trauma-hypoxia-asphyxia and other perinatal respiratory conditions were the leading causes among heavier infants. For all birth weight groups, congenital anomalies were the second leading cause, representing 27 percent of neonatal deaths. Although perinatal conditions caused nearly one-third of postneonatal deaths (28 days to under 1 year of life) among infants with birth weights of 500-1,499 g, for the other birth weight groups these conditions were much less important; predominant causes of postneonatal death were sudden infant death syndrome (SIDS), congenital anomalies, infections, and injuries. Black infants had a roughly twofold higher risk of neonatal and postneonatal death than did white infants for all causes except congenital anomalies, which occurred with almost equal frequency in blacks and whites. However, for infants with birth weights of 500-2,499 g, blacks had lower risks of neonatal death from RDS and congenital anomalies. Between 1960 (the latest year for which national birth weight-specific mortality statistics had been available) and 1980, SIDS emerged as a major diagnostic rubric. Otherwise, except for infections and congenital anomalies among infants with birth weights of 500-1,499 g, all causes of death declined in frequency among all birth weight groups.

Birth Weight↗

Discordance between male and female deaths due to the respiratory distress syndrome.

General neonatal mortality statistics and those for the respiratory distress syndrome (RDS) were examined for the State of Wisconsin from 1979 through 1982. The objectives were to ascertain whether there are differences in total neonatal mortality related to sex and birth weight, to determine the veracity of reported gender differences in deaths due to RDS, and to assess the contribution of other risk factors for neonatal mortality to overall and sex-specific deaths occurring secondary to RDS. Additionally, a prospective analysis was performed at one perinatal center during a 5-year period in attempts to determine whether gender remained a significant factor in deaths due to RDS after adjusting for incidence. Overall, the most frequent diagnoses in those who died were RDS (15.6%), deaths due to complications of pregnancy (8%), immaturity (4.2%), and asphyxia (3.4%). The majority of fatalities for both sexes occur in neonates weighing less than 1 kg and the percentage of deaths attributable to RDS is greatest between 1 and 1.5 kg. The difference between sexes is also maximal in the latter weight group. Deaths secondary to RDS are greater for males regardless of Apgar score at one and five minutes, mode of delivery, maternal age, or ancillary diagnosis. These data suggest that deaths secondary to RDS are consistently greater in male neonates and that delivery within a limited "window" of time during gestation increases male susceptibility to fatal RDS.

Apgar Score↗