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1.
Vaccine ; 42(8): 2059-2064, 2024 Mar 19.
Article in English | MEDLINE | ID: mdl-38413278

ABSTRACT

BACKGROUND: In January 2018, Afghanistan introduced the monovalent oral rotavirus vaccine (Rotarix) nationwide, administered as a 2-dose series at six and ten weeks of age. We describe characteristics of intussusception cases and assess potential intussusception risk associated with Rotarix vaccination in Afghan infants. METHODS: Multi-center prospective active hospital-based surveillance for intussusception was conducted from May 2018 to March 2022 in four sentinel sites in Afghanistan. We applied the Brighton Level 1 criteria for intussusception and verified vaccination status by reviewing vaccine cards. We used the self-controlled case series (SCCS) methodology to compare intussusception incidence in the 1 to 21 days after each dose of Rotarix vaccination against non-risk periods. RESULTS: A total of 468 intussusception cases were identified in infants under 12 months, with 264 cases aged between 28 and 245 days having confirmed vaccination status contributing to the SCCS analysis. Most case-patients (98 %) required surgery for treatment, and over half (59 %) of those who underwent surgery required intestinal resection. Nineteen (7 %) case-patients died. Eighty-six percent of case-patients received the first dose of Rotarix, and 69 % received the second dose before intussusception symptom onset. There was no increased risk of intussusception in the 1-7 days (relative incidence: 0.9, 95 % CI: 0.1, 7.5), 8-21 days (1.3, 95 % CI: 0.4, 4.2), or 1-21 days (1.1, 95 % CI: 0.4, 3.4) following receipt of the first dose or in the 1-7 days (0.2, 95 % CI: 0.3, 1.8), 8-21 days (0.7, 95 % CI: 0.3, 1.5), or 1-21 days (0.6, 95 % CI: 0.3, 1.2) following the second dose. CONCLUSION: Rotarix vaccination was not associated with an increased intussusception risk, supporting its continued use in Afghanistan's immunization program. However, there was a high level of death and resection due to intussusception among Afghan infants.


Subject(s)
Intussusception , Rotavirus Infections , Rotavirus Vaccines , Infant , Humans , Rotavirus Vaccines/adverse effects , Intussusception/chemically induced , Intussusception/epidemiology , Afghanistan/epidemiology , Prospective Studies , Vaccines, Attenuated/adverse effects , Vaccination/adverse effects , Product Surveillance, Postmarketing , Rotavirus Infections/epidemiology , Rotavirus Infections/prevention & control , Rotavirus Infections/complications
2.
Vaccine ; 41(48): 7220-7225, 2023 11 22.
Article in English | MEDLINE | ID: mdl-37884416

ABSTRACT

Rotavirus vaccines have substantially decreased rotavirus hospitalizations in countries where they have been implemented. In some high- and middle-income countries, a low-level of increased risk of intussusception, a type of acute bowel obstruction, has been detected following rotavirus vaccination. However, no increased risk of intussusception was found in India, South Africa, or a network of 7 other African countries. We assessed the association between a 2-dose monovalent rotavirus vaccine (Rotarix) and intussusception in 3 early-adopter low-income Asian countries -- Afghanistan, Myanmar, and Pakistan. Children <12 months of age admitted to a sentinel surveillance hospital with Brighton level 1 intussusception were eligible for enrollment. We collected information about each child's vaccination status and used the self-controlled case series method to calculate the relative incidence of intussusception 1-7 days, 8-21 days, and 1-21 days following each dose of vaccine and derived confidence intervals with bootstrapping. Of the 585 children meeting the analytic criteria, the median age at intussusception symptom onset was 24 weeks (IQR: 19-29). Overall, 494 (84 %) children received the first Rotarix dose and 398 (68 %) received the second dose. There was no increased intussusception risk during any of the risk periods following the first (1-7 days: 1.01 (95 %CI: 0.39, 2.60); 8-21 days: 1.37 (95 %CI: 0.81, 2.32); 1-21 days: 1.28 (95 %CI: 0.78, 2.11)) or second (1-7 days: 0.81 (95 %CI: 0.42, 1.54); 8-21 days: 0.77 (95 %CI: 0.53, 1.16); 1-21 days: 0.78 (95 %CI: 0.53, 1.16)) rotavirus vaccine dose. Our findings are consistent with other data showing no increased intussusception risk with rotavirus vaccination in low-income countries and add to the growing body of evidence demonstrating safety of rotavirus vaccines.


Subject(s)
Intussusception , Rotavirus Infections , Rotavirus Vaccines , Rotavirus , Humans , Infant , Intussusception/chemically induced , Intussusception/epidemiology , Pakistan/epidemiology , Rotavirus Infections/epidemiology , Rotavirus Infections/prevention & control , Rotavirus Infections/complications , Rotavirus Vaccines/adverse effects , South Africa , Vaccination/adverse effects
3.
East Mediterr Health J ; 29(2): 119-125, 2023 Feb 26.
Article in English | MEDLINE | ID: mdl-36880493

ABSTRACT

Background: The Afghanistan Reconstruction Trust Fund, managed by the World Bank through a contracted-out instrument called Sehatmandi, financed health service delivery in Afghanistan, with substantial achievements in infant, child and maternal health. After the collapse of the Afghan Government on 15 August 2021, the health system has been on the brink of collapse. Aims: We assessed the use of basic health services and estimated excess mortality resulting from the interruption to healthcare funding. Methods: We conducted a cross-sectional study that compared health services utilization from June to September for 3 consecutive years, 2019, 2020 and 2021, using 11 output indicators reported by the health management and information system. We used the Lives Saved Tool, a linear mathematical model with input data from the Afghanistan Demographic Health Survey 2015, to calculate the additional maternal, neonatal and child mortality at 25%, 50%, 75% and 95% reduction in health coverage. Results: During August and September 2021, after the announced ban on financing, health service utilization decreased to a range of 7-59%. Family planning, major surgeries and postnatal care showed the greatest decreases. Uptake of child immunization showed one-third decrease. Sehatmandi provides around 75% of primary and secondary health services: pausing funds to this programme will result in additional 2862 maternal deaths, 15 741 neonatal deaths, 30 519 child deaths, and 4057 stillbirths. Conclusion: Sustaining the current level of health services delivery is crucial to avoid excess, preventable morbidity and mortality in Afghanistan.


Subject(s)
Child Mortality , Delivery of Health Care , Government Programs , Healthcare Financing , Child , Humans , Infant , Infant, Newborn , Afghanistan/epidemiology , Cross-Sectional Studies , Family , Delivery of Health Care/economics
7.
Vaccine ; 38(6): 1352-1362, 2020 02 05.
Article in English | MEDLINE | ID: mdl-31870571

ABSTRACT

INTRODUCTION: Human papillomavirus (HPV) vaccination has not been introduced in many countries in South-Central Asia, including Afghanistan, despite the sub-region having the highest incidence rate of cervical cancer in Asia. This study estimates the potential health impact and cost-effectiveness of HPV vaccination in Afghanistan to inform national decision-making. METHOD: An Excel-based static cohort model was used to estimate the lifetime costs and health outcomes of vaccinating a single cohort of 9-year-old girls in the year 2018 with the bivalent HPV vaccine, compared to no vaccination. We also explored a scenario with a catch-up campaign for girls aged 10-14 years. Input parameters were based on local sources, published literature, or assumptions when no data was available. The primary outcome measure was the discounted cost per disability-adjusted life-year (DALY) averted, evaluated from both government and societal perspectives. RESULTS: Vaccinating a single cohort of 9-year-old girls against HPV in Afghanistan could avert 1718 cervical cancer cases, 125 hospitalizations, and 1612 deaths over the lifetime of the cohort. The incremental cost-effectiveness ratio was US$426 per DALY averted from the government perspective and US$400 per DALY averted from the societal perspective. The estimated annual cost of the HPV vaccination program (US$3,343,311) represents approximately 3.53% of the country's total immunization budget for 2018 or 0.13% of total health expenditures. CONCLUSION: In Afghanistan, HPV vaccine introduction targeting a single cohort is potentially cost-effective (0.7 times the GDP per capita of $586) from both the government and societal perspective with additional health benefits generated by a catch-up campaign, depending on the government's willingness to pay for the projected health outcomes.


Subject(s)
Cost-Benefit Analysis , Papillomavirus Infections , Papillomavirus Vaccines , Uterine Cervical Neoplasms , Vaccination/economics , Adolescent , Adult , Afghanistan/epidemiology , Aged , Aged, 80 and over , Child , Female , Humans , Middle Aged , Papillomavirus Infections/epidemiology , Papillomavirus Infections/prevention & control , Uterine Cervical Neoplasms/epidemiology , Uterine Cervical Neoplasms/prevention & control , Uterine Cervical Neoplasms/virology , Young Adult
8.
East Mediterr Health J ; 24(9): 951-958, 2018 Dec 09.
Article in English | MEDLINE | ID: mdl-30570128

ABSTRACT

BACKGROUND: Afghanistan has the second lowest health workforce density and the highest level of rural residing population in the Eastern Mediterranean Region. Ongoing insecurity, cultural, socio-economic and regulatory barriers have also contributed to gender and geographic imbalances. Afghanistan has introduced a number of interventions to tackle its health worker shortage and maldistribution. AIMS: This review provides an overview of interventions introduced to address the critical shortage and maldistribution of health workers in rural and remote Afghanistan. METHODS: A review of literature (including published peer-reviewed, grey literature, and national and international technical reports and documents) was conducted. RESULTS: The attraction and retention of health workforce in rural and remote areas require using a bundle of interventions to overcome these complex multidimensional challenges. Afghanistan expanded training institutions in remote provinces and introduced new cadres of community-based health practitioners. Targeted recruitment and deployment to rural areas, financial incentives and family support were other cited approaches. These interventions have increased the availability of health workers in rural areas, resulting in improved service delivery and health outcomes. Despite these efforts, challenges still persist including: limited female health worker mobility, retention of volunteer community-based health workforce, competition from the private sector and challenges of expanding scopes of practice of new cadres. CONCLUSIONS: Afghanistan made notable progress but must continue its efforts in addressing its critical health worker shortage and maldistribution through the production, deployment and retention of a "fit-for-purpose" gender-balanced, rural workforce with adequate skill mix. Limited literature inhibits evaluating progress and further studies are needed.


Subject(s)
Health Workforce , Medically Underserved Area , Afghanistan , Health Workforce/statistics & numerical data , Humans , Resource Allocation , Rural Health Services/organization & administration , Rural Health Services/statistics & numerical data
9.
Vaccine ; 36(49): 7472-7478, 2018 11 26.
Article in English | MEDLINE | ID: mdl-30420039

ABSTRACT

INTRODUCTION: Diarrhea is a leading cause of mortality worldwide and rotavirus accounts for many of these deaths. As of August 2018, 96 countries have introduced rotavirus vaccines into their immunization programs. Two rotavirus vaccines, Rotarix® and RotaTeq®, have been WHO-prequalified since 2009, with Rotarix® being the preferred product of most Gavi-supported countries. ROTAVAC® and ROTASIIL® have both been prequalified recently. MATERIALS AND METHODS: We reevaluated the costs and cost-effectiveness of rotavirus vaccination in Bangladesh, Ghana, and Malawi and compared Rotarix®, ROTAVAC®, and ROTASIIL® in each country. For consistency with previously published analyses in these countries, we used the same Excel-based cohort model and much of the same data as the original analyses. We varied the expected price (with and without Gavi subsidy), wastage, and incremental health system costs associated with each vaccine. We assumed the same efficacy and waning assumptions following administration of two or three doses for the respective product. RESULTS: The discounted cost per DALY averted compared to no vaccination ranged from 0.3 to 1.3 times GNI per capita for each vaccine. With the Gavi subsidy, the average cost-effectiveness ratios were below 0.3 times GNI per capita in all three countries. Though critical empirical cost data are not yet available, Rotarix® is the least costly and most cost-effective product in the countries examined in this modelling study. However, small decreases in the incremental health system cost for other products could result in cost and cost-effectiveness outcomes that match or surpass those of Rotarix®. CONCLUSION: Countries may wish to consider new rotavirus vaccines entering the market. Countries should carefully examine multiple product attributes including price and the incremental health system costs associated with each vaccine. These costs will vary by country and may be a defining factor in determining the least costly and most cost-effective product for the population.


Subject(s)
Immunization Programs , Rotavirus Infections/prevention & control , Rotavirus Vaccines/economics , Vaccination/economics , Bangladesh , Child, Preschool , Cohort Studies , Cost-Benefit Analysis , Ghana , Health Care Costs , Humans , Infant , Malawi , Models, Theoretical , Vaccines, Attenuated/economics
10.
Vaccine ; 36(51): 7765-7768, 2018 12 14.
Article in English | MEDLINE | ID: mdl-29510917

ABSTRACT

BACKGROUND: Rotavirus gastroenteritis is estimated to cause approximately five thousand deaths annually among Afghan children under 5 years old. Because laboratory confirmation of rotavirus is not routinely performed in clinical settings, assessing the precise burden of disease attributable to severe rotavirus gastroenteritis typically requires active surveillance efforts. This study describes the current burden of pediatric hospitalizations attributable to rotavirus gastroenteritis among Afghan children using surveillance data collected from 2013 to 2015. METHODS: Rotavirus surveillance was conducted from January 2013 through December 2015 at two of the largest hospitals in the country, Indira Gandhi Children Hospital in Kabul and Herat Regional Hospital. Children between 1 and 60 months of age who were admitted to these hospitals for diarrhea were consented and enrolled. Information on age, gender, and seasonality were collected. Stool specimens were collected and tested by enzyme immunoassay for the presence of rotavirus at the central public health laboratory in Afghanistan. RESULTS: Overall, 1,413 of 2,737 (52%) of hospitalized children under five years old with diarrhea were rotavirus cases. The overwhelming majority of rotavirus hospitalizations occurred in children younger than two years of age (93%) while 42% of all rotavirus hospitalizations occurred in children between 6 and 11 months of age. Rotavirus transmission occurred year-round. CONCLUSIONS: Rotavirus is a major cause of severe acute gastroenteritis hospitalizations in young Afghan children, responsible for over half of diarrheal hospitalizations in this population. The Afghanistan Ministry of Public Health has prioritized reducing child mortality by 2020 and is actively working towards the introduction of rotavirus vaccination in Afghan children. These data will be instrumental in understanding the potential impact upon child health that may be achieved through the introduction of rotavirus vaccines in Afghanistan.


Subject(s)
Gastroenteritis/epidemiology , Hospitalization/statistics & numerical data , Rotavirus Infections/epidemiology , Acute Disease , Afghanistan/epidemiology , Child, Preschool , Cost of Illness , Diarrhea/epidemiology , Feces/virology , Female , Gastroenteritis/virology , Humans , Immunoenzyme Techniques , Infant , Infant, Newborn , Male , Prevalence , Sentinel Surveillance
11.
Vaccine ; 36(51): 7769-7774, 2018 12 14.
Article in English | MEDLINE | ID: mdl-29107346

ABSTRACT

INTRODUCTION: Despite progress made in child survival in the past 20 years, 5.9 million children under five years died in 2015, with 9% of these deaths due to diarrhea. Rotavirus is responsible for more than a third of diarrhea deaths. In 2013, rotavirus was estimated to cause 215,000 deaths among children under five years, including 89,000 in Asia. As of April 2017, 92 countries worldwide have introduced rotavirus vaccination in their national immunization program. Afghanistan has applied for Gavi support to introduce rotavirus vaccination nationally. This study estimates the potential impact and cost-effectiveness of a national rotavirus immunization program in Afghanistan. METHODS: This study examined the use of Rotarix® (RV1) administered using a two-dose schedule at 6 and 10 weeks of age. We used the ProVac Initiative's UNIVAC model (version 1.2.09) to evaluate the impact and cost-effectiveness of a rotavirus vaccine program compared with no vaccine over ten birth cohorts from 2017 to 2026 with a 3% annual discount rate. All monetary units are adjusted to 2017 US$. RESULTS: Rotavirus vaccination in Afghanistan has the potential to avert more than one million cases; 660,000 outpatient visits; approximately 50,000 hospital admissions; 650,000 DALYs; and 12,000 deaths, over 10 years. Not accounting for any Gavi subsidy, rotavirus vaccination can avert DALYs at US$82/DALY from the government perspective and US$80/DALY from the societal perspective. With Gavi support, DALYs can be averted at US$29/DALY and US$31/DALY from the societal and government perspective, respectively. The average yearly cost of a rotavirus vaccination program would represent 2.8% of the total immunization budget expected in 2017 and 0.1% of total health expenditure. CONCLUSION: The introduction of rotavirus vaccination would be highly cost-effective in Afghanistan, and even more so with a Gavi subsidy.


Subject(s)
Cost-Benefit Analysis , Immunization Programs/economics , Rotavirus Infections/prevention & control , Rotavirus Vaccines/administration & dosage , Vaccination/economics , Afghanistan , Budgets , Child, Preschool , Diarrhea/prevention & control , Diarrhea/virology , Female , Health Expenditures , Health Policy , Humans , Immunization Schedule , Infant , Male , Models, Statistical , Rotavirus , Rotavirus Infections/mortality , Rotavirus Vaccines/economics , Vaccines, Attenuated/administration & dosage , Vaccines, Attenuated/economics
12.
Lancet ; 386(10009): 2145-91, 2015 Nov 28.
Article in English | MEDLINE | ID: mdl-26321261

ABSTRACT

BACKGROUND: The Global Burden of Disease Study 2013 (GBD 2013) aims to bring together all available epidemiological data using a coherent measurement framework, standardised estimation methods, and transparent data sources to enable comparisons of health loss over time and across causes, age-sex groups, and countries. The GBD can be used to generate summary measures such as disability-adjusted life-years (DALYs) and healthy life expectancy (HALE) that make possible comparative assessments of broad epidemiological patterns across countries and time. These summary measures can also be used to quantify the component of variation in epidemiology that is related to sociodemographic development. METHODS: We used the published GBD 2013 data for age-specific mortality, years of life lost due to premature mortality (YLLs), and years lived with disability (YLDs) to calculate DALYs and HALE for 1990, 1995, 2000, 2005, 2010, and 2013 for 188 countries. We calculated HALE using the Sullivan method; 95% uncertainty intervals (UIs) represent uncertainty in age-specific death rates and YLDs per person for each country, age, sex, and year. We estimated DALYs for 306 causes for each country as the sum of YLLs and YLDs; 95% UIs represent uncertainty in YLL and YLD rates. We quantified patterns of the epidemiological transition with a composite indicator of sociodemographic status, which we constructed from income per person, average years of schooling after age 15 years, and the total fertility rate and mean age of the population. We applied hierarchical regression to DALY rates by cause across countries to decompose variance related to the sociodemographic status variable, country, and time. FINDINGS: Worldwide, from 1990 to 2013, life expectancy at birth rose by 6·2 years (95% UI 5·6-6·6), from 65·3 years (65·0-65·6) in 1990 to 71·5 years (71·0-71·9) in 2013, HALE at birth rose by 5·4 years (4·9-5·8), from 56·9 years (54·5-59·1) to 62·3 years (59·7-64·8), total DALYs fell by 3·6% (0·3-7·4), and age-standardised DALY rates per 100 000 people fell by 26·7% (24·6-29·1). For communicable, maternal, neonatal, and nutritional disorders, global DALY numbers, crude rates, and age-standardised rates have all declined between 1990 and 2013, whereas for non-communicable diseases, global DALYs have been increasing, DALY rates have remained nearly constant, and age-standardised DALY rates declined during the same period. From 2005 to 2013, the number of DALYs increased for most specific non-communicable diseases, including cardiovascular diseases and neoplasms, in addition to dengue, food-borne trematodes, and leishmaniasis; DALYs decreased for nearly all other causes. By 2013, the five leading causes of DALYs were ischaemic heart disease, lower respiratory infections, cerebrovascular disease, low back and neck pain, and road injuries. Sociodemographic status explained more than 50% of the variance between countries and over time for diarrhoea, lower respiratory infections, and other common infectious diseases; maternal disorders; neonatal disorders; nutritional deficiencies; other communicable, maternal, neonatal, and nutritional diseases; musculoskeletal disorders; and other non-communicable diseases. However, sociodemographic status explained less than 10% of the variance in DALY rates for cardiovascular diseases; chronic respiratory diseases; cirrhosis; diabetes, urogenital, blood, and endocrine diseases; unintentional injuries; and self-harm and interpersonal violence. Predictably, increased sociodemographic status was associated with a shift in burden from YLLs to YLDs, driven by declines in YLLs and increases in YLDs from musculoskeletal disorders, neurological disorders, and mental and substance use disorders. In most country-specific estimates, the increase in life expectancy was greater than that in HALE. Leading causes of DALYs are highly variable across countries. INTERPRETATION: Global health is improving. Population growth and ageing have driven up numbers of DALYs, but crude rates have remained relatively constant, showing that progress in health does not mean fewer demands on health systems. The notion of an epidemiological transition--in which increasing sociodemographic status brings structured change in disease burden--is useful, but there is tremendous variation in burden of disease that is not associated with sociodemographic status. This further underscores the need for country-specific assessments of DALYs and HALE to appropriately inform health policy decisions and attendant actions. FUNDING: Bill & Melinda Gates Foundation.


Subject(s)
Chronic Disease/epidemiology , Communicable Diseases/epidemiology , Global Health/statistics & numerical data , Health Transition , Life Expectancy , Wounds and Injuries/epidemiology , Aged , Female , Humans , Male , Middle Aged , Mortality, Premature , Quality-Adjusted Life Years , Socioeconomic Factors
13.
Lancet ; 384(9945): 766-81, 2014 Aug 30.
Article in English | MEDLINE | ID: mdl-24880830

ABSTRACT

BACKGROUND: In 2010, overweight and obesity were estimated to cause 3·4 million deaths, 3·9% of years of life lost, and 3·8% of disability-adjusted life-years (DALYs) worldwide. The rise in obesity has led to widespread calls for regular monitoring of changes in overweight and obesity prevalence in all populations. Comparable, up-to-date information about levels and trends is essential to quantify population health effects and to prompt decision makers to prioritise action. We estimate the global, regional, and national prevalence of overweight and obesity in children and adults during 1980-2013. METHODS: We systematically identified surveys, reports, and published studies (n=1769) that included data for height and weight, both through physical measurements and self-reports. We used mixed effects linear regression to correct for bias in self-reports. We obtained data for prevalence of obesity and overweight by age, sex, country, and year (n=19,244) with a spatiotemporal Gaussian process regression model to estimate prevalence with 95% uncertainty intervals (UIs). FINDINGS: Worldwide, the proportion of adults with a body-mass index (BMI) of 25 kg/m(2) or greater increased between 1980 and 2013 from 28·8% (95% UI 28·4-29·3) to 36·9% (36·3-37·4) in men, and from 29·8% (29·3-30·2) to 38·0% (37·5-38·5) in women. Prevalence has increased substantially in children and adolescents in developed countries; 23·8% (22·9-24·7) of boys and 22·6% (21·7-23·6) of girls were overweight or obese in 2013. The prevalence of overweight and obesity has also increased in children and adolescents in developing countries, from 8·1% (7·7-8·6) to 12·9% (12·3-13·5) in 2013 for boys and from 8·4% (8·1-8·8) to 13·4% (13·0-13·9) in girls. In adults, estimated prevalence of obesity exceeded 50% in men in Tonga and in women in Kuwait, Kiribati, Federated States of Micronesia, Libya, Qatar, Tonga, and Samoa. Since 2006, the increase in adult obesity in developed countries has slowed down. INTERPRETATION: Because of the established health risks and substantial increases in prevalence, obesity has become a major global health challenge. Not only is obesity increasing, but no national success stories have been reported in the past 33 years. Urgent global action and leadership is needed to help countries to more effectively intervene. FUNDING: Bill & Melinda Gates Foundation.


Subject(s)
Cost of Illness , Obesity/epidemiology , Overweight/epidemiology , Adolescent , Adult , Child , Female , Humans , Male , Models, Theoretical , Prevalence , Regression Analysis
14.
Lancet ; 384(9947): 957-79, 2014 Sep 13.
Article in English | MEDLINE | ID: mdl-24797572

ABSTRACT

BACKGROUND: Remarkable financial and political efforts have been focused on the reduction of child mortality during the past few decades. Timely measurements of levels and trends in under-5 mortality are important to assess progress towards the Millennium Development Goal 4 (MDG 4) target of reduction of child mortality by two thirds from 1990 to 2015, and to identify models of success. METHODS: We generated updated estimates of child mortality in early neonatal (age 0-6 days), late neonatal (7-28 days), postneonatal (29-364 days), childhood (1-4 years), and under-5 (0-4 years) age groups for 188 countries from 1970 to 2013, with more than 29,000 survey, census, vital registration, and sample registration datapoints. We used Gaussian process regression with adjustments for bias and non-sampling error to synthesise the data for under-5 mortality for each country, and a separate model to estimate mortality for more detailed age groups. We used explanatory mixed effects regression models to assess the association between under-5 mortality and income per person, maternal education, HIV child death rates, secular shifts, and other factors. To quantify the contribution of these different factors and birth numbers to the change in numbers of deaths in under-5 age groups from 1990 to 2013, we used Shapley decomposition. We used estimated rates of change between 2000 and 2013 to construct under-5 mortality rate scenarios out to 2030. FINDINGS: We estimated that 6·3 million (95% UI 6·0-6·6) children under-5 died in 2013, a 64% reduction from 17·6 million (17·1-18·1) in 1970. In 2013, child mortality rates ranged from 152·5 per 1000 livebirths (130·6-177·4) in Guinea-Bissau to 2·3 (1·8-2·9) per 1000 in Singapore. The annualised rates of change from 1990 to 2013 ranged from -6·8% to 0·1%. 99 of 188 countries, including 43 of 48 countries in sub-Saharan Africa, had faster decreases in child mortality during 2000-13 than during 1990-2000. In 2013, neonatal deaths accounted for 41·6% of under-5 deaths compared with 37·4% in 1990. Compared with 1990, in 2013, rising numbers of births, especially in sub-Saharan Africa, led to 1·4 million more child deaths, and rising income per person and maternal education led to 0·9 million and 2·2 million fewer deaths, respectively. Changes in secular trends led to 4·2 million fewer deaths. Unexplained factors accounted for only -1% of the change in child deaths. In 30 developing countries, decreases since 2000 have been faster than predicted attributable to income, education, and secular shift alone. INTERPRETATION: Only 27 developing countries are expected to achieve MDG 4. Decreases since 2000 in under-5 mortality rates are accelerating in many developing countries, especially in sub-Saharan Africa. The Millennium Declaration and increased development assistance for health might have been a factor in faster decreases in some developing countries. Without further accelerated progress, many countries in west and central Africa will still have high levels of under-5 mortality in 2030. FUNDING: Bill & Melinda Gates Foundation, US Agency for International Development.


Subject(s)
Child Mortality/trends , Global Health/trends , Infant Mortality/trends , Child, Preschool , Global Health/statistics & numerical data , Humans , Infant , Infant, Newborn , Organizational Objectives , Risk Factors , Socioeconomic Factors
15.
Lancet ; 384(9947): 980-1004, 2014 Sep 13.
Article in English | MEDLINE | ID: mdl-24797575

ABSTRACT

BACKGROUND: The fifth Millennium Development Goal (MDG 5) established the goal of a 75% reduction in the maternal mortality ratio (MMR; number of maternal deaths per 100,000 livebirths) between 1990 and 2015. We aimed to measure levels and track trends in maternal mortality, the key causes contributing to maternal death, and timing of maternal death with respect to delivery. METHODS: We used robust statistical methods including the Cause of Death Ensemble model (CODEm) to analyse a database of data for 7065 site-years and estimate the number of maternal deaths from all causes in 188 countries between 1990 and 2013. We estimated the number of pregnancy-related deaths caused by HIV on the basis of a systematic review of the relative risk of dying during pregnancy for HIV-positive women compared with HIV-negative women. We also estimated the fraction of these deaths aggravated by pregnancy on the basis of a systematic review. To estimate the numbers of maternal deaths due to nine different causes, we identified 61 sources from a systematic review and 943 site-years of vital registration data. We also did a systematic review of reports about the timing of maternal death, identifying 142 sources to use in our analysis. We developed estimates for each country for 1990-2013 using Bayesian meta-regression. We estimated 95% uncertainty intervals (UIs) for all values. FINDINGS: 292,982 (95% UI 261,017-327,792) maternal deaths occurred in 2013, compared with 376,034 (343,483-407,574) in 1990. The global annual rate of change in the MMR was -0·3% (-1·1 to 0·6) from 1990 to 2003, and -2·7% (-3·9 to -1·5) from 2003 to 2013, with evidence of continued acceleration. MMRs reduced consistently in south, east, and southeast Asia between 1990 and 2013, but maternal deaths increased in much of sub-Saharan Africa during the 1990s. 2070 (1290-2866) maternal deaths were related to HIV in 2013, 0·4% (0·2-0·6) of the global total. MMR was highest in the oldest age groups in both 1990 and 2013. In 2013, most deaths occurred intrapartum or postpartum. Causes varied by region and between 1990 and 2013. We recorded substantial variation in the MMR by country in 2013, from 956·8 (685·1-1262·8) in South Sudan to 2·4 (1·6-3·6) in Iceland. INTERPRETATION: Global rates of change suggest that only 16 countries will achieve the MDG 5 target by 2015. Accelerated reductions since the Millennium Declaration in 2000 coincide with increased development assistance for maternal, newborn, and child health. Setting of targets and associated interventions for after 2015 will need careful consideration of regions that are making slow progress, such as west and central Africa. FUNDING: Bill & Melinda Gates Foundation.


Subject(s)
Global Health/trends , Maternal Mortality/trends , Age Distribution , Cause of Death/trends , Female , Global Health/statistics & numerical data , HIV Infections/mortality , Humans , Models, Statistical , Organizational Objectives , Pregnancy , Pregnancy Complications, Infectious/mortality , Risk Factors , Socioeconomic Factors , Time Factors
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