Charles Okafor

413 total citations
26 papers, 197 citations indexed

About

Charles Okafor is a scholar working on Surgery, Infectious Diseases and Health. According to data from OpenAlex, Charles Okafor has authored 26 papers receiving a total of 197 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Surgery, 5 papers in Infectious Diseases and 4 papers in Health. Recurrent topics in Charles Okafor's work include Orthopaedic implants and arthroplasty (6 papers), Total Knee Arthroplasty Outcomes (6 papers) and Orthopedic Infections and Treatments (4 papers). Charles Okafor is often cited by papers focused on Orthopaedic implants and arthroplasty (6 papers), Total Knee Arthroplasty Outcomes (6 papers) and Orthopedic Infections and Treatments (4 papers). Charles Okafor collaborates with scholars based in Australia, Nigeria and United States. Charles Okafor's co-authors include Joshua Byrnes, Son Nghiem, Obinna Ikechukwu Ekwunife, Christopher J. Vertullo, Brent Hodgkinson, Ahizechukwu C. Eke, Ifeanyichukwu U. Ezebialu, Onyenmechi Johnson Afonne, Joy C. Ebenebe and Orish Ebere Orisakwe and has published in prestigious journals such as SHILAP Revista de lepidopterología, Chemosphere and BMJ Open.

In The Last Decade

Charles Okafor

21 papers receiving 192 citations

Peers

Charles Okafor

SURGE

HTM

CCM

PPCH

Antioco Fois France

U Venkatesh India

Esther Ngozi Adejumo Nigeria

JS Thakur India

Adisorn Lumpaopong Thailand

Ogochukwu Okoye Nigeria

J. Wacker Germany

Edwin Koterba Brazil

Marie Thérèse Obama Cameroon

J. Girbés Spain

Antioco Fois France

Charles Okafor

36 ×0.6

SURGE

24 ×0.7

HTM

11 ×0.4

CCM

85 ×2.9

PPCH

24 ×0.9

Citations per year, relative to Charles Okafor Charles Okafor (= 1×) peers Antioco Fois

Countries citing papers authored by Charles Okafor

Since Specialization

Citations

This map shows the geographic impact of Charles Okafor's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Charles Okafor with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Charles Okafor more than expected).

Fields of papers citing papers by Charles Okafor

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Charles Okafor. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Charles Okafor. The network helps show where Charles Okafor may publish in the future.

Co-authorship network of co-authors of Charles Okafor

This figure shows the co-authorship network connecting the top 25 collaborators of Charles Okafor. A scholar is included among the top collaborators of Charles Okafor based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Charles Okafor. Charles Okafor is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Okafor, Charles, Son Nghiem, Carl Holder, Christopher J. Vertullo, & Joshua Byrnes. (2025). Are joint replacement registries cost-effective? Economic evaluation of the Australian orthopaedic association National joint replacement registry. Archives of Orthopaedic and Trauma Surgery. 145(1). 408–408.

Corte, Gabriela Dalla, Ann Dadich, Michelle DiGiacomo, et al.. (2025). Co‐Producing and Evaluating a Culturally Inclusive Dementia Education Initiative: A Multimethod Study Protocol. Health Expectations. 28(3). e70307–e70307.

Okafor, Charles, et al.. (2025). Healthcare spending and factors associated with fall injury in Australia residential aged care: a cohort analysis. Injury Prevention. ip–2024. 1 indexed citations

Okafor, Charles, et al.. (2025). Are Updated COVID-19 Vaccines Still Relevant for All Adult Age Groups? An Economic Evaluation of the Monovalent XBB.1.5 Vaccine in Australia. Value in Health. 28(5). 730–741.

Okafor, Charles, et al.. (2025). Treatment outcomes among patients with drug-resistant tuberculosis managed with BPaL/BPaLM regimen in the Southeast Zone of Nigeria. Pan African Medical Journal. 51. 86–86.

Okafor, Charles, Syed Afroz Keramat, Tracy Comans, et al.. (2024). Cost-Consequence Analysis of Deprescribing to Optimize Health Outcomes for Frail Older People: A Within-Trial Analysis. Journal of the American Medical Directors Association. 25(3). 539–544.e2. 5 indexed citations

Okafor, Charles, Son Nghiem, & Joshua Byrnes. (2023). Are joint replacement registries associated with burden of revision changes? A real-world panel data regression analysis. BMJ Open. 13(1). e063472–e063472. 4 indexed citations

Okafor, Charles, Son Nghiem, & Joshua Byrnes. (2023). One-stage revision versus debridement, antibiotics, and implant retention (DAIR) for acute prosthetic knee infection: an exploratory cohort study. Archives of Orthopaedic and Trauma Surgery. 143(9). 5787–5792. 9 indexed citations

Okafor, Charles, et al.. (2023). Interventions to increase mammography screening uptake among women living in low-income and middle-income countries: a systematic review. BMJ Open. 13(2). e066928–e066928. 9 indexed citations

10.

Okafor, Charles, Joshua Byrnes, Simon Stewart, Paul Scuffham, & Clifford Afoakwah. (2023). Cost Effectiveness of Strategies to Manage Atrial Fibrillation in Middle- and High-Income Countries: A Systematic Review. PharmacoEconomics. 41(8). 913–943. 4 indexed citations

11.

Okafor, Charles, Son Nghiem, & Joshua Byrnes. (2022). Is 2-Stage Septic Revision Worth the Money? A Cost-Utility Analysis of a 1-Stage Versus 2-Stage Septic Revision of Total Knee Arthroplasty. The Journal of Arthroplasty. 38(2). 347–354. 9 indexed citations

12.

Okafor, Charles, et al.. (2022). Interventions to increase mammography screening uptake among women living in low-income and middle-income countries: a protocol for a systematic review. BMJ Open. 12(3). e056901–e056901. 2 indexed citations

13.

Okafor, Charles. (2021). Introducing Rotavirus Vaccination in Nigeria: Economic Evaluation and Implications. PharmacoEconomics - Open. 5(3). 545–557. 6 indexed citations

14.

Okafor, Charles & Obinna Ikechukwu Ekwunife. (2021). Introducing rotavirus vaccine in eight sub-Saharan African countries: a cost–benefit analysis. The Lancet Global Health. 9(8). e1088–e1100. 10 indexed citations

15.

Okafor, Charles. (2020). Management of Chest Indrawing Pneumonia in Children Under Five Years at the Outpatient Health Facilities in Nigeria: An Economic Evaluation. Applied Health Economics and Health Policy. 19(3). 429–437.

16.

Okafor, Charles, Son Nghiem, Christopher J. Vertullo, & Joshua Byrnes. (2020). Cost of Revision Total Knee Replacement: A Protocol for Systematic Review and Meta-Analysis. PharmacoEconomics - Open. 5(2). 331–337. 3 indexed citations

17.

Okafor, Charles & Obinna Ikechukwu Ekwunife. (2017). Cost-effectiveness analysis of diarrhoea management approaches in Nigeria: A decision analytical model. PLoS neglected tropical diseases. 11(12). e0006124–e0006124. 7 indexed citations

18.

Okafor, Charles, Joy C. Ebenebe, Onyenmechi Johnson Afonne, et al.. (2014). Elevated prenatal methylmercury exposure in Nigeria: Evidence from maternal and cord blood. Chemosphere. 119. 485–489. 22 indexed citations

19.

Ekwunife, Obinna Ikechukwu, et al.. (2013). Cost-utility analysis of antihypertensive medications in Nigeria: a decision analysis. Cost Effectiveness and Resource Allocation. 11(1). 2–2. 17 indexed citations

20.

Eke, Ahizechukwu C., Ifeanyichukwu U. Ezebialu, & Charles Okafor. (2010). Presentation and Outcome of Eclampsia at a Tertiary Center in South East Nigeria – A 6-Year Review. Hypertension in Pregnancy. 30(2). 125–132. 22 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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