John Varallo

542 total citations
17 papers, 170 citations indexed

About

John Varallo is a scholar working on Public Health, Environmental and Occupational Health, Cardiology and Cardiovascular Medicine and Pediatrics, Perinatology and Child Health. According to data from OpenAlex, John Varallo has authored 17 papers receiving a total of 170 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Public Health, Environmental and Occupational Health, 6 papers in Cardiology and Cardiovascular Medicine and 5 papers in Pediatrics, Perinatology and Child Health. Recurrent topics in John Varallo's work include Global Health and Surgery (8 papers), Cardiac, Anesthesia and Surgical Outcomes (6 papers) and Medical Malpractice and Liability Issues (4 papers). John Varallo is often cited by papers focused on Global Health and Surgery (8 papers), Cardiac, Anesthesia and Surgical Outcomes (6 papers) and Medical Malpractice and Liability Issues (4 papers). John Varallo collaborates with scholars based in United States, Tanzania and United Kingdom. John Varallo's co-authors include Sarah Maongezi, Shehnaz Alidina, Ntuli Kapologwe, Kai Sun, Jean Anderson, Philip E. Castle, Enriquito Lu, Ana I. Tergas, Caitlin E. Martin and Gopal Menon and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Annals of Surgery.

In The Last Decade

John Varallo

17 papers receiving 166 citations

Peers

John Varallo

EPIDE

ONCOL

PHEOH

PPCH

EMS

Mesfin Abebe Ethiopia

Pisake Lumbiganon Thailand

Rob Bethune United Kingdom

Boniface Nguhuni Tanzania

Najib Isse Dirie Somalia

María J. Cabero-Pérez Spain

Frédérique Jacquerioz Bausch Switzerland

Muchabayiwa Francis Gidiri Zimbabwe

Curt Stankovic United States

Elsie Burger South Africa

Mesfin Abebe Ethiopia

John Varallo

66 ×1.0

EPIDE

57 ×1.4

ONCOL

35 ×0.9

PHEOH

54 ×1.5

PPCH

14 ×0.4

EMS

Citations per year, relative to John Varallo John Varallo (= 1×) peers Mesfin Abebe

Countries citing papers authored by John Varallo

Since Specialization

Citations

This map shows the geographic impact of John Varallo'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 John Varallo with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John Varallo more than expected).

Fields of papers citing papers by John Varallo

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John Varallo. 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 John Varallo. The network helps show where John Varallo may publish in the future.

Co-authorship network of co-authors of John Varallo

This figure shows the co-authorship network connecting the top 25 collaborators of John Varallo. A scholar is included among the top collaborators of John Varallo 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 John Varallo. John Varallo is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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17 of 17 papers shown

Zaigham, Mehreen, John Varallo, Shakila Thangaratinam, Wanda K. Nicholson, & Gerard H.A. Visser. (2024). Global disparities in caesarean section rates: Why indication-based metrics are needed. SHILAP Revista de lepidopterología. 4(2). e0002877–e0002877. 8 indexed citations

Ashengo, Tigistu Adamu, et al.. (2023). Improving surgical safety checklist utilisation at 23 public health facilities in Ethiopia: a collaborative quality improvement project. BMJ Open Quality. 12(4). e002406–e002406. 3 indexed citations

Lalla, Amber Trujillo, Dawit Worku, Lisa Philpotts, et al.. (2023). Improving access to safe, quality surgical care for gynecologic cancers through capacity‐building interventions in low‐ and middle‐income countries: A scoping review. International Journal of Gynecology & Obstetrics. 165(2). 552–561. 1 indexed citations

Fitzgerald, Laura, et al.. (2023). Mentoring approaches in a safe surgery program in Tanzania: Lessons learned during COVID-19 and recommendations for the future. Surgery Open Science. 14. 109–113. 2 indexed citations

Varallo, John, et al.. (2022). Compliance with the World Health Organization’s surgical safety checklist and related postoperative outcomes: a nationwide survey among 172 health facilities in Ethiopia. Patient Safety in Surgery. 16(1). 20–20. 14 indexed citations

Meara, John G., David Barash, Augustino Hellar, et al.. (2021). Development and content validation of the Safe Surgery Organizational Readiness Tool: A quality improvement study. International Journal of Surgery. 89. 105944–105944. 6 indexed citations

Starr, Nichole, Moore Jn, Constance S. Harrell, et al.. (2021). Perioperative Provider Safety in Low- and Middle-income Countries During the COVID-19 Pandemic. Annals of Surgery. 274(6). e525–e627. 3 indexed citations

Wurdeman, Taylor, Steven J. Staffa, David Barash, et al.. (2021). Surgical Safety Checklist Use and Post‐Caesarean Sepsis in the Lake Zone of Tanzania: Results from Safe Surgery 2020. World Journal of Surgery. 46(2). 303–309. 3 indexed citations

Sharma, Swati, John Varallo, Victoria Smith, et al.. (2021). Building safe surgery knowledge and capacity in Cambodia: a mixed-methods evaluation of an innovative training and mentorship intervention. Global Health Action. 14(1). 1998996–1998996. 4 indexed citations

10.

Castle, Philip E., et al.. (2020). High-risk human papillomavirus prevalence in self-collected cervicovaginal specimens from human immunodeficiency virus (HIV)-negative women and women living with HIV living in Botswana. PLoS ONE. 15(2). e0229086–e0229086. 21 indexed citations

11.

Jumbam, Desmond T., Gopal Menon, Tenzing N. Lama, et al.. (2020). Surgical referrals in Northern Tanzania: a prospective assessment of rates, preventability, reasons and patterns. BMC Health Services Research. 20(1). 725–725. 16 indexed citations

12.

Menon, Gopal, Salome Kuchukhidze, Desmond T. Jumbam, et al.. (2020). Assessing completeness of patient medical records of surgical and obstetric patients in Northern Tanzania. Global Health Action. 13(1). 1765526–1765526. 12 indexed citations

13.

Wurdeman, Taylor, C. Rockelle Strader, Shehnaz Alidina, et al.. (2020). In‐Hospital Postoperative Mortality Rates for Selected Procedures in Tanzania's Lake Zone. World Journal of Surgery. 45(1). 41–49. 7 indexed citations

14.

Hellar, Augustino, John Varallo, Laura Fitzgerald, et al.. (2019). A Team‐Based Approach to Introduce and Sustain the Use of the WHO Surgical Safety Checklist in Tanzania. World Journal of Surgery. 44(3). 689–695. 19 indexed citations

15.

Anderson, Jean, et al.. (2015). Evaluation of Cervical Cancer Screening Programs in Côte d’Ivoire, Guyana, and Tanzania: Effect of HIV Status. PLoS ONE. 10(9). e0139242–e0139242. 30 indexed citations

16.

Ricca, Jim, et al.. (2015). Uterotonic use immediately following birth: using a novel methodology to estimate population coverage in four countries. BMC Health Services Research. 15(1). 9–9. 5 indexed citations

17.

Martin, Caitlin E., et al.. (2014). Evaluation of a single‐visit approach to cervical cancer screening and treatment in Guyana: Feasibility, effectiveness and lessons learned. Journal of obstetrics and gynaecology research. 40(6). 1707–1716. 16 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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