Nega Assefa

ORCID: 0000-0003-0341-2329
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About
Contact & Profiles
Research Areas
  • Global Maternal and Child Health
  • Child Nutrition and Water Access
  • Adolescent Sexual and Reproductive Health
  • Poverty, Education, and Child Welfare
  • COVID-19 epidemiological studies
  • Vaccine Coverage and Hesitancy
  • Intimate Partner and Family Violence
  • Maternal and Perinatal Health Interventions
  • Autopsy Techniques and Outcomes
  • COVID-19 Pandemic Impacts
  • Food Security and Health in Diverse Populations
  • Healthcare Systems and Reforms
  • Global Health Care Issues
  • COVID-19 and Mental Health
  • Reproductive Health and Contraception
  • Occupational Health and Safety Research
  • HIV/AIDS Research and Interventions
  • COVID-19 Impact on Reproduction
  • Neonatal Respiratory Health Research
  • SARS-CoV-2 and COVID-19 Research
  • Maternal and fetal healthcare
  • Global Health and Epidemiology
  • Demographic Trends and Gender Preferences
  • Pregnancy and preeclampsia studies
  • Sex work and related issues

Haramaya University
2016-2025

London School of Hygiene & Tropical Medicine
2021-2025

College of Medical Sciences
2015-2024

University of London
2023

Harvard University
2020-2021

St. Paul's Hospital Millennium Medical College
2021

Aksum University
2019

Ambo University
2019

Adigrat University
2019

Indepth Network
2019

Quique Bassat Dianna M. Blau Ikechukwu U. Ogbuanu Solomon Samura Erick Kaluma and 95 more Ima-Abasi Bassey Samba O. Sow Adama Mamby Keita Milagritos D. Tapia Ashka Mehta Karen L. Kotloff Mahbubur Rahman Kazi Munisul Islam Muntasir Alam Shams El Arifeen Emily S. Gurley Vicky L. Baillie Portia Mutevedzi Sana Mahtab Bukiwe Thwala Beth A. Tippett Barr Dickens Onyango Victor Akelo Emily Rogena Peter Nyamthimba Onyango Richard Omore Inácio Mandomando Sara Ajanovic Rosauro Varo António Sitoe Miquel Duran‐Frigola Nega Assefa J. Anthony G. Scott Lola Madrid Tseyon Tesfaye Yadeta Dessie Zachary J. Madewell Robert F. Breiman Cynthia G. Whitney Shabir A. Madhi Ferdousi Begum Mohammad Mosiur Rahman Mohammed Kamal ASM Nawshad Uddin Ahmed Mahbubul Hoque Md Atique Iqbal Chowdhury Saria Tasnim Mahbubur Rahman Tahmina Shirin Meerjady Sabrina Flora Dilruba Ahmed Khalequ Zaman Mohammed Ahmed Mohammed Zahid Hossain Mustafizur Rahman Shahana Parveen Sanwarul Bari Qazi Sadek-ur Rahman Ferdousi Islam Gutunduru Revathi Aggrey Igunza Magdalene Kuria Paul K. Mitei Florence Murila Jennifer K. Verani Mugah A. Christopher Janet Agaya Harun Owuor Gregory O. Sadat Joy Kuboka Kephas Otieno Richard Oliech Peter Nyamthimba Aluoch Anne Peter Otieno Dickson Gethi Sammy Khagayi Joyce Were Akinyi Anne Ogollo Thomas Misore George Aol David Obor Maryanne Nyanjom Mary Omwalo Frederick Omondi Were Zacchaeus Abaja Doh Sanogo Nana Kourouma Seydou Sissoko Uma U. Onwuchekwu Diakaridia Sidibé Tatiana Keita Diakaridia Kone Cheick Bougadari Traoré Jane Juma Kounandji Diarra Awa Traoré Tiéman Diarra Kiranpreet Chawla Sharon M. Tennant

Importance The number of deaths children younger than 5 years has been steadily decreasing worldwide, from more 17 million annual in the 1970s to an estimated 5.3 2019 (with 2.8 occurring those aged 1-59 months [53% all <5 years]). More detailed characterization childhood could inform interventions improve child survival. Objective To describe causes postneonatal across 7 mortality surveillance sentinel sites Africa and Asia. Design, Setting, Participants Child Health Mortality...

10.1001/jamanetworkopen.2023.22494 article EN cc-by-nc-nd JAMA Network Open 2023-07-26

BackgroundKlebsiella pneumoniae is an important cause of nosocomial and community-acquired pneumonia sepsis in children, antibiotic-resistant K a growing public health threat. We aimed to characterise child mortality associated with this pathogen seven high-mortality settings.MethodsWe analysed Child Health Mortality Prevention Surveillance (CHAMPS) data on the causes deaths children younger than 5 years stillbirths sites located countries across sub-Saharan Africa (Ethiopia, Kenya, Mali,...

10.1016/s2666-5247(23)00290-2 article EN cc-by The Lancet Microbe 2024-01-11

Background Low Birth Weight (LBW) is one of the major risk factor for death in early life. However, little known about predictors LBW sub-Saharan Africa. Therefore, aim this study was to measure incidence and determinants a rural population Ethiopia. Methods An observational cohort on pregnant women conducted from December 2009 November 2010. During period 1295 live birth were registered weights 956 children measured within 24 hours after birth. Socio-demographic, economic, maternal...

10.1371/journal.pone.0039957 article EN cc-by PLoS ONE 2012-06-29

In Ethiopia, little is known about pregnancy among rural women. Proper maternal health care depends on clear understanding of the reproductive situation. The objective this study was to identify predictors unintended in eastern Ethiopia. This part surveillance at Kersa Demographic Surveillance and Health Research Center, East Pregnant women were assessed whether their current intended or not. Data collected by lay interviewers using uniform questionnaire. Odds Ratio, with 95% confidence...

10.1186/1742-4755-9-1 article EN cc-by Reproductive Health 2012-01-12

BackgroundSub-Saharan Africa and south Asia contributed 81% of 5·9 million under-5 deaths 77% 2·6 stillbirths worldwide in 2015. Vital registration verbal autopsy data are mainstays for the estimation leading causes death, but both non-specific focus on a single underlying cause. We aimed to provide granular contributory death stillborn fetuses deceased neonates children younger than 5 years, inform child mortality prevention efforts.MethodsThe Child Health Mortality Prevention Surveillance...

10.1016/s2214-109x(20)30205-9 article EN cc-by The Lancet Global Health 2020-06-17

Abstract Despite reductions over the past 2 decades, childhood mortality remains high in low- and middle-income countries sub-Saharan Africa South Asia. In these settings, children often die at home, without contact with health system, are neither accounted for, nor attributed a cause of death. addition, when death determinations occur, they use nonspecific methods. Consequently, findings from models currently utilized to build national global estimates causes associated substantial...

10.1093/cid/ciz599 article EN cc-by Clinical Infectious Diseases 2019-07-18

The coronavirus disease 2019 (COVID-19) pandemic may have short-term and long-term impacts on health services across sub-Saharan African countries. A telephone survey in Burkina Faso, Ethiopia, Nigeria was conducted to assess the effects of healthcare from perspectives providers (HCPs) community members. total 900 HCPs (300 each country) 1,797 adult members (approximately 600 participated study. Adjusted risk ratios (ARRs) 95% confidence intervals (CIs) were computed using modified Poisson...

10.4269/ajtmh.20-1619 article EN cc-by American Journal of Tropical Medicine and Hygiene 2021-06-23

Teenage pregnancy is a global issue raising concerns for all who are interested in the health and well-being of young women their children. It carries major social issues with unique medical psychosocial consequences both adolescents society general. This study aimed at assessing prevalence factors associated teenage eastern Ethiopia.A community-based cross-sectional was conducted. Multi-stage simple random sampling procedure used to select 2258 female teenagers. Interviewer-administered...

10.2147/ijwh.s287715 article EN cc-by-nc International Journal of Women s Health 2021-02-01

Each year, 2.4 million children die within their first month of life. Child Health and Mortality Prevention Surveillance (CHAMPS) established in 7 countries aims to generate accurate data on why such deaths occur inform prevention strategies. Neonatal that occurred between December 2016 2021 were investigated with MITS 24-72 hours death. Testing included blood, cerebrospinal fluid lung cultures, multi-pathogen PCR CSF, nasopharyngeal swabs tissue, histopathology examination lung, liver...

10.1371/journal.pgph.0001612 article EN cc-by PLOS Global Public Health 2023-03-20
Sana Mahtab Dianna M. Blau Zachary J. Madewell Ikechukwu U. Ogbuanu Julius Ojulong and 95 more Sandra Lako Hailemariam Legesse Joseph Bangura Quique Bassat Inácio Mandomando Elísio Xerinda Fabíola Fernandes Rosauro Varo Samba O. Sow Karen L. Kotloff Milagritos D. Tapia Adama Mamby Keita Diakaridia Sidibé Dickens Onyango Victor Akelo Dickson Gethi Jennifer R. Verani Gunturu Revathi J. Anthony G. Scott Nega Assefa Lola Madrid Hiwot Bizuayehu Tseyon Tesfaye Tirfe Shams El Arifeen Emily S. Gurley Kazi Munisul Islam Muntasir Alam Mohammad Zahid Hossain Ziyaad Dangor Vicky L. Baillie Martin Hale Portia Mutevedzi Robert F. Breiman Cynthia G. Whitney Shabir A. Madhi Yasmin Adam Janet Agaya ASM Nawshad Uddin Ahmed Dilruba Ahmed Addisu Alemu Solomon Ali Soter Ameh George Aol Solveig A. Cunningham Farida Ariuman Oluseyi Balogun Sanwarul Bari Margaret Basket Ferdousi Begum Manu Bhandari John Blevins James Bunn Courtney Bursuc Carrie Jo Cain Richard Chawana Kiranpreet Chawla Cornell Chukwuegbo Kounandji Diarra Tiéman Diarra Maureen H. Diaz Babatunde Duduyemi Karen D. Fairchild Meerjady Sabrina Flora Ashleigh Fritz Mischka Garel Brigitte Gaume Mahlet Abayneh Gizaw Nelesh P. Govender Carol L. Greene Tadesse Gure Binyam Halu Mahbubul Hoque Cleopas Hwinya Alexander M. Ibrahim Kitiezo Aggrey Igunza Ferdousi Islam Okokon Ita Amara Jambai Jennifer Johnson Jane Juma Erick Kaluma Mohammed Kamal Osman Kaykay Sartie Kenneh Sammy Khagayi Rima Koka Diakaridia Kone Jeffrey P. Koplan Nana Kourouma Dickens Kowuor Kristin LaHatte Sanjay G. Lala Kyu Han Lee Lucy Liu Hennie Lombaard

The Child Health and Mortality Prevention Surveillance (CHAMPS) Network programme undertakes post-mortem minimally invasive tissue sampling (MITS), together with collection of ante-mortem clinical information, to investigate causes childhood deaths across multiple countries. We aimed evaluate the overall contribution pneumonia in causal pathway death causative pathogens fatal children aged 1-59 months enrolled CHAMPS Network.

10.1016/s2352-4642(23)00328-0 article EN cc-by The Lancet Child & Adolescent Health 2024-01-25

Intimate partner violence (IPV) during pregnancy is closely associated with adverse maternal and fetal outcomes. To develop prevention strategies interventions, the exploration of cultural norms, societal attitudes, perceptions related to IPV vital. This study explored community perspectives on in rural Ethiopia. We used an exploratory qualitative design collect data. Data were collected through in-depth interviews (IDIs) focus group discussions (FGDs) guided by a semi-structured topic...

10.3390/ijerph22020197 article EN International Journal of Environmental Research and Public Health 2025-01-29

Female genital mutilation (FGM) is nontherapeutic surgical modification of the female genitalia. It an ancient tradition in large parts Africa, including Ethiopia, especially eastern part country. This study aimed to identify prevalence, perceptions, perpetuators, reasons for conducting FGM, and factors associated with this practice regard women's health.Community-based cross-sectional house-to-house interviews were conducted during 2008 among 858 females reproductive age (15-49 years),...

10.2147/ijwh.s28805 article EN cc-by-nc International Journal of Women s Health 2012-02-01

Kersa HDSS was established in 12 sub-districts of district, Eastern Hararge, Oromia Region, Ethiopia. The site is principally rural with two small towns (Kersa and Weter). baseline census conducted 2007 since then has been updated every 6 months, registration demographic health events. Data are entered into the HRS-2 relational database. At a total 10 085 houses, 522 households 50 830 people were registered. sex ratio number persons per household 1.0 5.1, respectively. end 2013, population...

10.1093/ije/dyv284 article EN cc-by-nc-nd International Journal of Epidemiology 2015-10-27

Abstract Objective To examine knowledge of menstruation, HIV and STIs other than across eight sites in SSA to develop effective programmatic interventions enabling adolescents achieve positive SRH as their transition adulthood. Methods We combine data from Health Demographic Surveillance Sites sub‐Saharan Africa, an adolescent‐specific survey that included 7116 males females age 10–19 years old. provide pooled site‐specific estimates multiple analytic models examining the how year‐specific...

10.1111/tmi.13332 article EN Tropical Medicine & International Health 2019-11-06

Abstract Health and demographic surveillance systems (HDSSs) provide a foundation for characterizing defining priorities strategies improving population health. The Child Mortality Prevention Surveillance (CHAMPS) project aims to inform policy prevent child deaths through generating causes of death from data combined with innovative diagnostic laboratory methods. Six the 7 sites that constitute CHAMPS network have active HDSSs: Mozambique, Mali, Ethiopia, Kenya, Bangladesh, South Africa;...

10.1093/cid/ciz609 article EN cc-by Clinical Infectious Diseases 2019-08-05

Abstract Mortality surveillance and cause of death data are instrumental in improving health, identifying diseases conditions that a high burden preventable deaths, allocating resources to prevent these deaths. The Child Health Prevention Surveillance (CHAMPS) network uses standardized process define, assign, code causes stillbirth child (<5 years age) across the CHAMPS network. A Determination Cause Death (DeCoDe) panel composed experts from local site analyzes all available individual...

10.1093/cid/ciz572 article EN cc-by Clinical Infectious Diseases 2019-07-18

Abstract Malnutrition is the leading cause of poor child health in Ethiopia, and progress to avert it unacceptably slow. In addition, little known about magnitude factors associated with concurrent wasting stunting (WaSt). Therefore, this study aimed assess prevalence WaSt, wasting, underweight among children 6–59 months Kersa Health Demographic Surveillance System, Ethiopia. Data from a total 1091 their parents' were analysed cross‐sectional study. Household questionnaires anthropometric...

10.1111/mcn.13172 article EN cc-by Maternal and Child Nutrition 2021-03-16
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