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John Carson Allen Jr

Adjunct Assistant Professor

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Dr John Allen is Assistant Professor of Biostatistics at the Duke-NUS Medical School, and Head, Educational Core, Centre for Quantitative Medicine in the Office of Research. He holds Bachelor and Master of Science degrees in Statistics from Brigham Young University at Provo, Utah USA and a PhD in Biometry from the University of Texas Health Science Center at Houston, Texas. Prior to joining Duke-NUS in 2009, he was employed in the United States for 35+ years by medical device and pharmaceutical companies engaged in clinical research. As a Biostatistician, Manager and Director of Biostatistical/Data Management units he supported product regulatory submissions to the U.S. Food and Drug Administration.

At Duke-NUS, Dr. Allen provides collaborative Biostatistical support to SingHealth researchers spanning areas including Cardiology, Ophthalmology, Rheumatology, Obstetrics & Gynecology, Pediatrics, Neurology and Cancer resulting in 240 publications in these and other areas. During his tenure at Duke-NUS, he has been a Collaborator or Co-Investigator on many funded grants, and Co-Principal Investigator of a Joint Research Project between NUS and SERI: Identification of Genetic biomarkers for disease progression in Angle Closure.

As Head, Educational Core, Centre for Quantitative Medicine (CQM), Dr. Allen participated in developing the MS3 Research Methods and Analysis (RMA) curriculum module. He has statistical oversight responsibility for RMA as well as Biostatistical support provided to third-year medical students engaged in fulfilling their Scholarly Research requirement. He serves on the Duke-NUS Research and Scholarship Committee (RSC), is a Biostatistical mentor for the Duke-NUS Centre for Clinician-Scientist Development (CCSD), and an Academic Medicine Education Institute (AMEI) Research Grant Biostatistical mentor.

Awards include Outstanding Educator Award, Duke-NUS; Duke-NUS/AMEI Golden Apple Award for innovative teaching; and a SingHealth Duke-NUS Research 2nd Place Team Award.

When not in Singapore—where he loves be, Dr Allen resides is in Star, Idaho USA. He is the father of six daughters and one son, and grandfather to 24 grandchildren.

Research Interest

Comparison of measurement methods, Cardiology, Ophthalmology, Oncology and Obstetrics.


  1. Robert Harrison, Vaishnavi Radhakrishnan, John C Allen Jr., Peter S Lam, Dominic J Allocco, Sandeep Brar, Martin Fahy, Zhen Zhang, Rebecca Fisher, Fumiaki Ikeno, Philippe Généreux, Takeshi Kimura, Minglei Liu, Weng Kit Lye, Hirofumi Nagai, Yuka Suzuki, Roseann White, Mitchell W Krucoff. The East-West late lumen loss study: Comparison of angiographic late lumen loss between Eastern and Western drug eluting stent study cohorts. American Heart Journal. 2018 Dec;206:61-71. IF 4.171
  2. Yun Yun Go, Reinhard Sellmair, John Carson Allen, Anders Olof Sahlén, Heerajnarain Bulluck, David Sim, Fazlur Rehman Jauferally, Michael Ross Macdonald, Patrick Lim, Ping Chai, MBBS; Jonathan Yap, Carolyn SP Lam. Defining a ‘frequent admitter’ phenotype among patients with repeat heart failure admissions. European Journal of Heart Failure, 2019 Mar;21(3):311-318, IF 13.965
  3. Shuang Leng, Ru San Tan, Xiaodan Zhao, John C. Allen, Angela S. Koh, Liang Zhong. Validation of a rapid semi-automated method to assess left atrial longitudinal phasic strains on cine cardiovascular magnetic resonance imaging. Journal of Cardiovascular Magnetic Resonance (2018) 20:7. IF 5.457
  4. Choon L Bong, Josephine S K Tan, Serene S T Lim, Yee Low, Siam-Wee Sim, Victor S Rajadurai, Poh-Choo Khoo, John C Allen, Michael Meaney, Woon-Puay Koh. Randomized Controlled Trial of Dexmedetomidine Sedation versus General Anesthesia for Inguinal Hernia Surgery on Peri-operative Outcomes in Infants. (DEGA Study) British Journal of Anaesthesia May 2019.12.027. IF 6.499
  5. Bryon Jun Xiong Teo, Joyce Suang Bee Koh, Lei Jiang, John Carson Allen, Seng Jin Yeo, Sen Howe. Association of the 36-Item Short Form Health Survey Physical Component Summary Score With Patient Satisfaction and Improvement 2 Years After Total Knee Arthroplasty. JAMA Network Open2019;2(2):e190062. IF 5.82
  6. Ming Ren Toh, Jian Bang Chiang,  Siao Ting Chong, Sock Hoai Chan, Nur Diana Binte Ishak, Eliza Courtney, Wei Hao Lee, Syed Muhammad Fahmy Bin Syed Abdillah Al, John Carson Allen, Jr, Kiat Hon Lim, Sonia Davila, Patrick Tan, Weng Khong Lim, Iain Bee Huat Tan,  Joanne Ngeow. Germline Pathogenic Variants in Homologous Recombination and DNA Repair Genes in an Asian Cohort of Young-Onset Colorectal Cancer. JNCI Cancer Spectrum, Volume 2, Issue 4, 1 November 2018.  IF 12.583
  7. Xiao Deng, Bin Xiao, John Carson Allen Jr, Yu-Lin Ng, Jia-Nee Foo, Yew-Long Lo, Louis C.S. Tan, Eng-King Tan. Parkinson’s disease GWAS-linked Park16 carriers showed greater progression: A longitudinal study over 9 years. Journal of Medical Genetics. 27 February 2019. doi: 10.1136/jmedgenet-2018-105661  IF 5.899
  8. Tracy Lian, Swee Han Lim, Yih Yng Ng, Nur Shahidah, Marcus Ong, Lai Peng Tham, Han Nee Gan, Michael YC Chia, Andrew Ho, Si Oon Cheah, Desmond Renhao Mao, John Allen, Nausheen Edwin Doctor, Benjamin Leong. Effect of Vertical Location on Survival Outcomes for Out-of-Hospital Cardiac Arrest in Singapore. Resuscitation. 2019 Jun;139:24-32. IF 5.863
  9. Ing Loon Sean Chua, Ngiap Chuan Tan, Wei Teen Wong, John C Allen, Rahul Malhotra, Truls Østbye. Virtual Reality for Screening of Cognitive Function in Older Persons: Comparative Study. J Med Internet Res. 2019 Aug 1;21(8):e14821. IF 4.945
    Debajyoti Roy, Srikiran Thalanki, Adrian Lau Cheng Kiang, Surendra Varman Doraiswamy, John Carson Allen. FP463 Hip Fracture in the Elderly CKD Patient: Factors associated with Mortality. Nephrology Dialysis Transplantation 34(Supplement 1), June 2019, DOI: 10.1093/ndt/gfz106.FP463  IF 4.198
  10. Mark Kit Lim, Chee Wai Ku, Thiam Chye Tan, Yin Hao Justin Lee, John Carson Allen, Nguan Soon Tan. Characterization of serum progesterone and progesterone-induced blocking factor (PIBF) levels across trimesters in healthy pregnant women. Scientific Reports 10, 3840 (2020), IF 4.525