Maternal mortality in a rural district of southeastern Tanzania: an application of the sisterhood method

BACKGROUND: Deaths from maternal causes represent the leading cause of death among women of reproductive age in most developing countries. It is estimated that the highest risk occurs in Africa, with 20% of world births but 40% of the world maternal deaths. The level of maternal mortality is difficult to assess especially in countries without an adequate vital registration system. Indirect techniques are an attractive cost-effective tool to provide estimates of orders of magnitude for maternal mortality. METHOD: The level of maternal mortality estimated by the sisterhood method is presented for a rural district in the Morogoro Region of Southeastern Tanzania and the main causes of maternal death are studied. Information from region-specific data using the sisterhood method is compared to data from other sources. RESULTS: The maternal mortality ratio (MMR) was 448 maternal deaths per 100,000 live births (95%CI : 363-534 deaths per 100,000 live births). Maternal causes accounted for 19% of total mortality in this age group. One in 39 women who survive until reproductive age will die before age 50 due to maternal causes. The main cause of death provided by hospital data was puerperal sepsis (35%) and postpartum haemorrhage (17%); this is compatible with the main causes reported for maternal death in settings with high levels of maternal mortality, and similar to data for other regions in Tanzania. The sisterhood method provides data comparable with others, together with a cost-effective and reliable estimate for the determination of the magnitude of maternal mortality in the rural Kilombero District.     

Estimating pregnancy-related mortality from census data: experience in Latin America

Objective

To assess the feasibility of measuring maternal mortality in countries lacking accurate birth and death registration through national population censuses by a detailed evaluation of such data for three Latin American countries.

Methods

We used established demographic techniques, including the general growth balance method, to evaluate the completeness and coverage of the household death data obtained through population censuses. We also compared parity to cumulative fertility data to evaluate the coverage of recent household births. After evaluating the data and adjusting it as necessary, we calculated pregnancy-related mortality ratios (PRMRs) per 100 000 live births and used them to estimate maternal mortality.

Findings

The PRMRs for Honduras (2001), Nicaragua (2005) and Paraguay (2002) were 168, 95 and 178 per 100 000 live births, respectively. Surprisingly, evaluation of the data for Nicaragua and Paraguay showed overreporting of adult deaths, so a downward adjustment of 20% to 30% was required. In Honduras, the number of adult female deaths required substantial upward adjustment. The number of live births needed minimal adjustment. The adjusted PRMR estimates are broadly consistent with existing estimates of maternal mortality from various data sources, though the comparison varies by source.

Conclusion

Census data can be used to measure pregnancy-related mortality as a proxy for maternal mortality in countries with poor death registration. However, because our data were obtained from countries with reasonably good statistical systems and literate populations, we cannot be certain the methods employed in the study will be equally useful in more challenging environments. Our data evaluation and adjustment methods worked, but with considerable uncertainty. Ways of quantifying this uncertainty are needed.     

Maternal mortality in rural Gambia: levels, causes and contributing factors

A demographic study carried out in a rural area of the Gambia between January 1993 and December 1998 recorded 74 deaths among women aged 15-49 years. Reported here is an estimation of maternal mortality among these 74 deaths based on a survey of reproductive age mortality, which identified 18 maternal deaths by verbal autopsy. Over the same period there were 4245 live births in the study area, giving a maternal mortality ratio of 424 per 100,000 live births. This maternal mortality estimate is substantially lower than estimates made in the 1980s, which ranged from 1005 to 2362 per 100,000 live births, in the same area. A total of 9 of the 18 deaths had a direct obstetric cause--haemorrhage (6 deaths), early pregnancy (2), and obstructed labour (1). Indirect causes of obstetric deaths were anaemia (4 deaths), hepatitis (1), and undetermined (4). Low standards of health care for obstetric referrals, failure to recognize the severity of the problem at the community level, delays in starting the decision-making process to seek health care, lack of transport, and substandard primary health care were identified more than once as probable or possible contributing factors to these maternal deaths.     

Mortality of women in reproductive age in the municipality of S?o Paulo (Brazil), 1986. I. Methodology and general results

The purpose of this study was to evaluate the accuracy of the death certificates of a sample of a quarter of all deaths in women of reproductive age (10-49 years) resident in the Municipality of S. Paulo, SP, Brazil, in 1986. For each death, further data were gathered by means of household interviews and from medical records and autopsy information where available. Nine hundred and fifty-three deaths were analysed, for whom there were good quality death certificates except with regard to maternal deaths an terminal respiratory diseases, the former being greatly under-reported. The official maternal mortality rate was 44.5 per 100,000 live births but the true rate was 99.6 per 100,000 live births. The three main causes of death were cardiovascular diseases, neoplasms and external causes. A great proportion of smokers was found among the deceased women (40.4%). Eleven percent of the deceased consumed large amounts of alcoholic beverages regularly.     

Maternal Mortality Decline in the Kassena-Nankana District of Northern Ghana

Objective In the absence of an adequate vital registration system in Ghana, the Navrongo demographic surveillance system (NDSS) established in 1993 presents a viable alternative to monitor, in a poor rural district, the UN Millennium Development Goal on maternal health (MDG) of reducing maternal mortality by 75% between 1990 and 2015. Methods Of the 518 women aged 12–49 years identified in the NDSS database to have died in the Kassena-Nankana district in the period January 2002–December 2004, spouses or family members completed verbal autopsy interviews for 516 female deaths. Results Of the 516 female deaths, 45 were identified as maternal deaths. 71% of the maternal deaths were attributed to direct maternal causes while 29% were due to indirect maternal causes. Abortion-related deaths were the most frequent cause of maternal deaths. The maternal mortality ratio for the period 2002–2004 was 373 maternal deaths per 100,000 live births indicating a 40% reduction of maternal mortality from the 1995–1996 level of 637 maternal deaths per 100,000 live births. However, the health-facility based maternal mortality ratio in the district (which excludes maternal deaths outside health facilities) was 141 maternal deaths per 100,000 live births for the period 2002–2004. Conclusion This district may be on track to achieve the MDG on maternal health. Ultimately, strengthening vital registration systems to provide timely information to policymakers should supersede the other methods of measuring maternal mortality.     

The magnitude of the maternal mortality problem in sub-Saharan Africa

Estimates of national levels of maternal mortality in sub-Saharan Africa are based on limited and defective data and subject to considerable discussion. In this paper, existing data from several sources are reviewed. The attempt has been made to assess the level of maternal mortality by studying the relative importance of maternal death, health services coverage data, perinatal mortality, causes of maternal death and traditional birth practices. It is concluded that national levels of maternal mortality in sub-Saharan Africa most likely vary from 250 to 700 per 100,000 live births, in proportion to the variation in overall levels of mortality in the countries. There is a need for more studies either based on data from peripheral hospitals or on community surveys. Such studies should analyse coverage of deliveries, coverage of maternal deaths, causes of maternal deaths, socioeconomic differentials, perinatal mortality and should pay special attention to the increasing problem of abortion-related mortality.     

Classification differences and maternal mortality: a European study. MOMS Group. MOthers' Mortality and Severe morbidity

OBJECTIVES: To compare the ways maternal deaths are classified in national statistical offices in Europe and to evaluate the ways classification affects published rates. METHODS: Data on pregnancy-associated deaths were collected in 13 European countries. Cases were classified by a European panel of experts into obstetric or non-obstetric causes. An ICD-9 code (International Classification of Diseases) was attributed to each case. These were compared to the codes given in each country. Correction indices were calculated, giving new estimates of maternal mortality rates. SUBJECTS: There were sufficient data to complete reclassification of 359 or 82% of the 437 cases for which data were collected. RESULTS: Compared with the statistical offices, the European panel attributed more deaths to obstetric causes. The overall number of deaths attributed to obstetric causes increased from 229 to 260. This change was substantial in three countries (P < 0.05) where statistical offices appeared to attribute fewer deaths to obstetric causes. In the other countries, no differences were detected. According to official published data, the aggregated maternal mortality rate for participating countries was 7.7 per 100,000 live births, but it increased to 8.7 after classification by the European panel (P < 0.001). CONCLUSION: The classification of pregnancy-associated deaths differs between European countries. These differences in coding contribute to variations in the reported numbers of maternal deaths and consequently affect maternal mortality rates. Differences in classification of death must be taken into account when comparing maternal mortality rates, as well as differences in obstetric care, underreporting of maternal deaths and other factors such as the age distribution of mothers.     

中国孕产妇死亡状况的国际比较

目的:分析中国孕产妇死亡率在世界各国中的相对位置。方法:收集1990、2005年中国以及世界有可利用数据的172个国家孕产妇死亡率、死亡数,以及相关国情数据。计算死亡率平均年下降速率,并与和中国有相似国情的国家进行比较。结果:2005年世界孕产妇死亡率为386.75/10万,1990～2005年世界孕产妇死亡率平均年下降速率为0.95%;2005年中国孕产妇死亡率为45.00/10万,1990～2005年中国孕产妇死亡率平均年下降速率为4.86%,两项均位居172个有可利用数据国家的第109位。结论:1990～2005年世界孕产妇死亡率整体呈下降趋势,中国2005年孕产妇死亡率低于世界平均水平,1990～2005年孕产妇死亡率平均年下降速率高于世界平均水平。     

Completeness of a Maternal and Perinatal Mortality Enhanced Surveillance System in Pakistan: Evidence from Capture–Recapture Methods

Objectives An enhanced surveillance system that integrated health information systems and extended surveillance to previously uncovered areas to capture all births, perinatal and maternal deaths in a rural district of Pakistan was established in 2015, and this study uses capture–recapture methodology to assess completeness. Methods Births and deaths collected by the survey were matched with the data captured by the enhanced surveillance system. Capture–recapture methodology was used to estimate the total number of births and deaths, measure the degree of underestimation, and adjust mortality rates. Results Of all births, 99% were captured by the enhanced surveillance system. Ninety percent of neonatal deaths and 86% of early neonatal deaths were recorded. The recorded neonatal mortality rate was 40 per 1000 live births (95% CI 35–44), and after adjustment for under-enumeration was 42 per 1000 live births (95% CI 37–46). Recorded rates underestimated neonatal mortality by 5% and perinatal mortality by 7%. Five stillbirths were recorded by the survey and all were matched to recorded stillbirths. The one maternal death recorded by the survey was matched with the maternal death captured by the enhanced surveillance system. The maternal mortality ratio prior to adjustment for under-enumeration was 247 per 100,000 live births (95% CI 147–391), whereas after adjustment it was 246 per 100,000 live births (95% CI 146–389). Conclusion Application of capture–recapture methods to the enhanced surveillance system indicated a high completeness of birth and death recording by the surveillance system.     

1999-2018年深圳市宝安区孕产妇死亡情况分析

目的 了解1999-2018年深圳市宝安区的孕产妇死亡情况及其变化趋势.方法 从原始登记表和深圳市妇幼保健管理系统获取宝安区近20年孕产妇死亡个案资料进行整理,统计分析孕产妇死亡率、死亡变化趋势、死亡特征及死亡原因.结果 1999-2018年宝安区年平均孕产妇死亡率为18.86/10万;总体呈下降趋势,从1999-20...     

Maternal mortality among the Kassena-Nankana of northern Ghana

This report presents key findings from a maternal mortality study conducted in the Kassena-Nankana District of northern Ghana in 1997-98. Sibling history data collected in the course of this survey are analyzed together with longitudinal data from the Navrongo Demographic Surveillance System (NDSS). A comparison between mortality data from these two sources indicates that obtaining reasonably accurate estimates of age-specific death rates is possible by using the sisterhood method. Direct and indirect estimates from the maternal mortality study and the NDSS suggest a decline in the maternal mortality ratio for the Kassena-Nankana District from 800 to 600 maternal deaths per 100,000 live births over the past 14 years.     

Problem of mortality in women of reproductive age in rural area of Haryana

To learn the extent of mortality among women of reproductive age, data was analyzed on causes of death, as reported by anganwadi workers and heads of households, for all maternal deaths in 1992 in Haryana, India. The community was comprised of 300,907 persons and 58,961 women (19.6%) of reproductive age. 9894 live births were recorded, which is higher than the national average. 219 women died in 1992 from maternal and nonmaternal causes (3.7 per 1000 women). In the study blocks (Rohtak, Chiri, and Kathure) the range of mortality was from 3.4 to 4.1 per 1000. 78.5% (172 deaths) were considered nonmaternal deaths. Mortality was 20.9% among mothers 15-20 years old, 25.6% among mothers 20-25 years old, and 18.6% among mothers 25-30 years old. 65.1% of women died at home. 58.1% sought medical care prior to death. 1.2% of deaths were certified. 36.7% of deaths were to literate women, and the remaining 63.3% were illiterate. Causes of nonmaternal death included accidents, respiratory disorders, poisoning, and digestive disorders. Slightly over 20% of accidental deaths were due to burns and suicide. 21.46% (47 deaths) were maternal deaths (475 per 100,000 live births). Maternal mortality ranged from 46 to 488 in the 3 blocks. Rohtak had the highest maternal mortality. Maternal mortality was highest among women 30-44 years old (996 per 100,000), followed by women 15-20 years old (575 per 100,000). 21.3% died during labor and delivery, and 68% died during the postpartum period. 57.4% died at home, and 25.5% died at the Medical College Hospital. 61.7% used prenatal services. 36.2% did not seek medical care prior to their death. 55.3% of deliveries were by trained birth attendants. 25.5% died with their first births. 51.0% of women with a birth interval under 3 years died. Maternal mortality was distributed by cause as follows: postpartum hemorrhage (17.0%), puerperal sepsis (17.0%), anemia (12.8%), preeclampsia and eclampsia (14.9%), obstructed labor (6.4%), hemorrhage antepartum (4.25%), abortions and MTP (10.6%), and indirect causes (12.8%). Improvement is needed in literacy, contraception, women's empowerment, and prenatal care in order to reach the goal of reduced maternal mortality by the year 2000.     

An analysis of anemia and pregnancy-related maternal mortality

The relationship of anemia as a risk factor for maternal mortality was analyzed by using cross-sectional, longitudinal and case-control studies because randomized trials were not available for analysis. The following six methods of estimation of mortality risk were adopted: 1) the correlation of maternal mortality rates with maternal anemia prevalence derived from national statistics; 2) the proportion of maternal deaths attributable to anemia; 3) the proportion of anemic women who die; 4) population-attributable risk of maternal mortality due to anemia; 5) adolescence as a risk factor for anemia-related mortality; and 6) causes of anemia associated with maternal mortality. The average estimates for all-cause anemia attributable mortality (both direct and indirect) were 6.37, 7.26 and 3.0% for Africa, Asia and Latin America, respectively. Case fatality rates, mainly for hospital studies, varied from <1% to >50%. The relative risk of mortality associated with moderate anemia (hemoglobin 40-80 g/L) was 1.35 [95% confidence interval (CI): 0.92-2.00] and for severe anemia (<47 g/L) was 3.51 (95% CI: 2.05-6.00). Population-attributable risk estimates can be defended on the basis of the strong association between severe anemia and maternal mortality but not for mild or moderate anemia. In holoendemic malarious areas with a 5% severe anemia prevalence (hemoglobin <70 g/L), it was estimated that in primigravidae, there would be 9 severe-malaria anemia-related deaths and 41 nonmalarial anemia-related deaths (mostly nutritional) per 100,000 live births. The iron deficiency component of these is unknown.     

Adoption of Medicaid Expansion Is Associated with Lower Maternal Mortality

ObjectivesThis study explores the effect of Medicaid expansion under the Affordable Care Act on the maternal mortality ratio in the United States.MethodsA difference-in-differences research design was used to analyze the effect of Medicaid expansion on maternal mortality. Maternal mortality was defined with and without late maternal deaths, to substantiate the contribution of increased preconception and postpartum insurance coverage. To examine whether there was a racial difference in the effects of Medicaid expansion, models were stratified by the woman's race/ethnicity for non-Hispanic Black women, non-Hispanic White women, and Hispanic women.ResultsMedicaid expansion was significantly associated with lower maternal mortality by 7.01 maternal deaths per 100,000 live births (p = .002) relative to nonexpansion states. When maternal mortality definitions excluded late maternal deaths, Medicaid expansion was significantly associated with a decrease in maternal mortality per 100,000 live births by 6.65 (p = .004) relative to nonexpansion states. Medicaid expansion effects were concentrated among non-Hispanic Black mothers, suggesting that expansion could be contributing to decreasing racial disparities in maternal mortality.ConclusionsAlthough maternal mortality overall continues to increase in the United States, the maternal mortality ratio among Medicaid expansion states has increased much less compared with nonexpansion states. These results suggest that Medicaid expansion could be contributing to a relative decrease in the maternal mortality ratio in the United States. The decrease in the maternal mortality ratio is greater when maternal mortality estimates include late maternal deaths, suggesting that sustained insurance coverage after childbirth as well as improved preconception coverage could be contributing to decreasing maternal mortality.     

Identifying maternal mortality through networking: results from coastal Kenya

This paper presents the results of experience in identifying maternal deaths through "networking." In a survey of child health in coastal Kenya, women of reproductive ages were asked about their knowledge of maternal deaths in the villages. Thirty-five maternal deaths were ultimately identified in the study area, which led to an estimate of maternal mortality of 6 to 7 per 1,000 live births. The leading causes of death were hemorrhage and anemia, followed by sepsis; and nulliparous women appeared to be at higher risks of dying. Special attention is given to the ethnomedical aspects of maternal mortality,which have important implications for strategies to reduce maternal mortality.     

Community-based monitoring of safe motherhood in the United Republic of Tanzania

OBJECTIVE: To examine the progress made towards the Safe Motherhood Initiative goals in three areas of the United Republic of Tanzania during the 1990s. METHODS: Maternal mortality in the United Republic of Tanzania was monitored by sentinel demographic surveillance of more than 77,000 women of reproductive age, and by prospective monitoring of mortality in the following locations; an urban site; a wealthier rural district; and a poor rural district. The observation period for the rural districts was 1992-99 and 1993-99 for the urban site. FINDINGS: During the period of observation, the proportion of deaths of women of reproductive age (15-49 years) due to maternal causes (PMDF) compared with all causes was between 0.063 and 0.095. Maternal mortality ratios (MMRatios) were 591-1099 and maternal mortality rates (MMRates; maternal deaths per 100,000 women aged 15-49 years) were 43.1-123.0. MMRatios in surveillance areas were substantially higher than estimates from official, facility-based statistics. In all areas, the MMRates in 1999 were substantially lower than at the start of surveillance (1992 for rural districts, 1993 for the urban area), although trends during the period were statistically significant at the 90% level only in the urban site. At the community level, an additional year of education for household heads was associated with a 62% lower maternal death rate, after controlling for community-level variables such as the proportion of home births and occupational class. CONCLUSION: Educational level was a major predictor of declining MMRates. Even though rates may be decreasing, they remained high in the study areas. The use of sentinel registration areas may be a cost-effective and accurate way for developing countries to monitor mortality indicators and causes, including for maternal mortality.     

The state of emergency obstetric care services in Nairobi informal settlements and environs: Results from a maternity health facility survey

Background  

Maternal mortality in Sub-Saharan Africa remains a challenge with estimates exceeding 1,000 maternal deaths per 100,000 live births in some countries. Successful prevention of maternal deaths hinges on adequate and quality emergency obstetric care. In addition to skilled personnel, there is need for a supportive environment in terms of essential drugs and supplies, equipment, and a referral system. Many household surveys report a reasonably high proportion of women delivering in health facilities. However, the quality and adequacy of facilities and personnel are often not assessed. The three delay model; 1) delay in making the decision to seek care; 2) delay in reaching an appropriate obstetric facility; and 3) delay in receiving appropriate care once at the facility guided this project. This paper examines aspects of the third delay by assessing quality of emergency obstetric care in terms of staffing, skills equipment and supplies.     

Cause of Death in Women of Reproductive Age in Rural Nepal Obtained Through Community-Based Surveillance: Is Reducing Maternal Mortality the Right Priority for Women's Health Programs?

We used a community surveillance system to gather information regarding pregnancy outcomes and the cause of death for women of reproductive age (WRA) in Kanchanpur, Nepal. A total of 784 mother groups participated in the collection of pregnancy outcomes and mortality data. Of the 273 deaths among WRA, the leading causes of death reported were chronic diseases (94, 34.4%) poisoning, snake bites, and suicide (grouped together; 55, 20.1%), and accidents (29, 10.6%), while maternal mortality accounted for 7%. Nevertheless, the calculated maternal mortality ratio was quite high (259.3 per 100,000 live births).     

Reproductive health in Romania: reversing the Ceausescu legacy

As a result of the restrictive reproductive health policies enforced under the 25-year Ceausescu dictatorship, Romania ended the 1980s with the highest recorded maternal mortality of any country in Europe--159 deaths per 100,000 live births in 1989. An estimated 87 percent of these maternal deaths were caused by illegal and unsafe abortion. Under the Ceausescu regime, all contraceptive methods were forbidden and induced abortion was available only for women who met extremely narrow criteria. Immediately after the December 1989 revolution that overthrew Ceausescu, the new government removed restrictions on contraceptive use and legalized abortion. This legislative change has had beneficial effects on women's health, seen in the drop in maternal mortality in 1990 to 83 deaths per 100,000 live births--almost half the ratio in 1989. In addition, changes instituted since the revolution have led to the improved availability of reproductive health services and to the creation of new educational and training opportunities related to reproductive health services and to the creation of new educational and training opportunities related to reproductive health. The newly created contraceptive and abortion services have presented health system managers and policymakers with many challenges as they work to expand the availability of high-quality, comprehensive reproductive health care in a setting of economic hardship, political unrest, insufficient infrastructure, and outdated medical knowledge and practice.