Chukwuma Okereke

ORCID: 0000-0003-0551-1531
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Research Areas
  • Cardiac, Anesthesia and Surgical Outcomes
  • Global Cancer Incidence and Screening
  • Economic and Financial Impacts of Cancer
  • Surgical site infection prevention
  • Global Health and Surgery
  • Air Quality and Health Impacts
  • Smoking Behavior and Cessation
  • Climate Change and Health Impacts
  • COVID-19 and healthcare impacts
  • Hip and Femur Fractures
  • Colorectal Cancer Surgical Treatments
  • Colorectal Cancer Screening and Detection
  • Radiation Dose and Imaging
  • Cancer survivorship and care
  • Frailty in Older Adults
  • Intestinal Malrotation and Obstruction Disorders
  • Advances in Oncology and Radiotherapy
  • Hernia repair and management
  • Genetic factors in colorectal cancer
  • Folate and B Vitamins Research
  • Breast Cancer Treatment Studies
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Ultrasound in Clinical Applications
  • Health Systems, Economic Evaluations, Quality of Life
  • Alcohol Consumption and Health Effects

Federal Medical Centre
2024-2025

Institute for Health Metrics and Evaluation
2022-2024

University of Washington
2022-2024

Federal Medical Centre
2020

As a leading behavioral risk factor for numerous health outcomes, smoking is major ongoing public challenge. Although evidence on the effects of has been widely reported, few attempts have evaluated dose-response relationship between and diverse range outcomes systematically comprehensively. In present study, we re-estimated relationships current 36 by conducting systematic reviews up to 31 May 2022, employing meta-analytic method that incorporates between-study heterogeneity into estimates...

10.1038/s41591-022-01978-x article EN cc-by Nature Medicine 2022-10-01

Abstract Despite a gradual decline in smoking rates over time, exposure to secondhand smoke (SHS) continues cause harm nonsmokers, who are disproportionately children and women living low- middle-income countries. We comprehensively reviewed the literature published by July 2022 concerning adverse impacts of SHS on nine health outcomes. Following, we quantified each exposure–response association accounting for various sources uncertainty evaluated strength evidence supporting our analyses...

10.1038/s41591-023-02743-4 article EN cc-by Nature Medicine 2024-01-01
Fiona B Bennitt Sarah Wozniak Kate Causey Sandra Spearman Chukwuma Okereke and 95 more Vanessa Garcia Nadim Hashmeh Charlie Ashbaugh Atef Abdelkader Meriem Abdoun Muhammed Jemal Abdurebi Armita Abedi Roberto Ariel Abeldaño Zúñiga Richard Gyan Aboagye Bilyaminu Abubakar Ahmed Abu‐Zaid Mesafint Molla Adane Oyelola A. Adegboye Victor Adekanmbi Victor Abiola Adepoju Temitayo Esther Adeyeoluwa Olorunsola Adeyomoye Rishan Adha Muhammad Sohail Afzal Saira Afzal Feleke Doyore Agide Aqeel Ahmad Danish Ahmad Muayyad Ahmad Sajjad Ahmad Ali Ahmadi Sepideh Ahmadi Anisuddin Ahmed Ayman Ahmed Haroon Ahmed Marjan Ajami Rufus Akinyemi Salah Al Awaidy Hanadi Al Hamad Muaaz Alajlani Mulubirhan Assefa Alemayohu Adel Al‐Gheethi Abid Ali Waad Ali Sheikh Mohammad Alif Sami Almustanyir Nelson Alvis‐Guzmán Nelson J. Alvis-Zakzuk Hany Aly Hubert Amu Ganiyu Adeniyi Amusa Tadele Fentabil Anagaw Boluwatife Stephen Anuoluwa Iyadunni Adesola Anuoluwa Saeid Anvari Ekenedilichukwu Emmanuel Anyabolo Geminn Louis Carace Apostol Aleksandr Y. Aravkin Demelash Areda Brhane Berhe Olatunde Aremu Akeza Awealom Asgedom Mubarek Yesse Ashemo Tahira Ashraf Seyyed Shamsadin Athari Sina Azadnajafabad Ahmed Y. Azzam Giridhara R. Babu Saeed Bahramian Kiran Bam Maciej Banach Biswajit Banik Mehmet Fırat Baran Francesco Barone‐Adesi Sandra Barteit Hameed Akande Bashiru Pritish Baskaran Mohammad-Mahdi Bastan Sanjay Basu Saurav Basu Sefealem Assefa Belay Melesse Belayneh Apostolos Beloukas Derrick Bennett Devidas S. Bhagat Dinesh Bhandari Pankaj Bhardwaj Sonu Bhaskar Ajay Nagesh Bhat Priyadarshini Bhattacharjee Gurjit Kaur Bhatti Manpreet S. Bhatti Cem Bilgin Mary Sefa Boampong Sri Harsha Boppana Samuel Adolf Bosoka Sofiane Boudalia Fan Cao Rama Mohan Chandika Gashaw Sisay Chanie

10.1016/s0140-6736(24)02840-x article EN cc-by The Lancet 2025-03-01

Importance In Nigeria, 80% of breast cancer is diagnosed at an advanced stage, when clinical management complex and necessitates multidisciplinary collaboration. The Nigerian Federal Ministry Health promotes tumor board (MDT) discussions endorses the National Comprehensive Cancer Network Harmonized Guidelines for Sub-Saharan Africa (Harmonized Guidelines) to standardize care, but extent their utilization not well understood. Objective To identify barriers facilitators standardization care in...

10.1001/jamanetworkopen.2024.59614 article EN cc-by-nc-nd JAMA Network Open 2025-02-12

Abstract Introduction Surgical care in first‐referral hospitals (FRHs) low‐ and middle‐income countries (LMICs) is poorly characterized. Inguinal hernia repair can act as a good tracer condition. This study aimed to evaluate the variation across different hospital types LMICs. Methods We conducted secondary analysis of an international prospective cohort surgery. Data was collected from consecutive patients undergoing primary inguinal between 30 January May 21, 2023. characterized LMICs,...

10.1002/wjs.12374 article EN cc-by World Journal of Surgery 2024-11-22

Abstract Background The majority of non-metastatic breast cancer patients in sub-Saharan Africa are recommended to have mastectomy. impact mastectomy on a predominantly young African patient population requires evaluation. BREAST-Q is validated patient-reported outcome measure quality-of-life following surgery that has been translated into 30 languages-none Africa. This study aimed translate and assess the psychometric properties module for use Nigeria. Methods was from English Yoruba its...

10.1186/s41687-024-00692-1 article EN cc-by Journal of Patient-Reported Outcomes 2024-02-09

Introduction Distance from a healthcare facility is barrier in access to surgery. Methodologies evaluate the population covered by hospital are time consuming and costly. The aim of this study was analyse density around hospitals pragmatically their while comparing differences between types. Methods This analysis conducted that participated an international cohort on inguinal hernia patients (HIPPO study). Hospitals located low middle income countries were eligible for inclusion classified...

10.62463/surgery.107 article EN cc-by Deleted Journal 2024-12-01

e13782 Background: Breast cancer [BC] is the leading cause of incidence and mortality in Nigerian women, with five-year survival 44% vs. 90% US. The World Health Organization [WHO], through Global Cancer Initiative [GBCI], endorses a 3-pillar program that promotes early-stage detection, timely diagnosis, expeditious treatment. We performed situational analysis to understand predictors achieving WHO targets Nigeria as basis for implementing an action plan. Methods: conducted cross-sectional...

10.1200/jco.2024.42.16_suppl.e13782 article EN Journal of Clinical Oncology 2024-06-01

PURPOSE The Nigerian Federal Ministry of Health (FMOH) endorses National Comprehensive Cancer Network (NCCN) Harmonized Guidelines for sub-Saharan Africa (SSA) breast cancer (BC), which were developed with the African Coalition and resource adapted SSA. FMOH advocates multi-disciplinary tumor boards. This research aimed to better understand guideline awareness, adherence among specialties care as a basis an implementation plan. METHODS Guided by Consolidated Framework Implementation Research...

10.1200/go-24-10600 article EN cc-by-nc-nd JCO Global Oncology 2024-07-01
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