John Ioannidis

John P.A. Ioannidis, MD DSc, Professor, Department of Medicine (Stanford Prevention Research Center); Professor, Department of Epidemiology and Population Health; Professor (by courtesy) of Biomedical Data Science, Stanford University School of Medicine; and Professor (by courtesy), Department of Statistics, Stanford University School of Humanities & Sciences 

Research Description: Dr. Ioannidis has a long-standing track record in methodological, empirical, and applied research on the integration of evidence and large-scale evidence. He is particularly interested in developing and appraising the strengths and weaknesses of analytical methods and study designs and ways of accumulating and integrating information in ways that reduce bias and improve research efficiency. His work related to diabetes includes large-scale exposure-wide assessments of associations in diabetes and umbrella reviews, diabetes as an outcome and eligibility criterion in randomized trials and study design for diabetes- related research. He has been a long-term collaborator with many SDRC investigators in studies focused on genetics, prevention, methods and cardiovascular risk factors including diabetes.

Selected relevant publications (Stanford DRC members in BOLD):

  1. O'Sullivan JW, Grigg S, Crawford W, Turakhia MP, Perez M, Ingelsson E, Wheeler MT, Ioannidis JPA, Ashley EA. Accuracy of Smartphone Camera Applications for Detecting Atrial Fibrillation: A Systematic Review and Meta-analysis. JAMA Netw Open. 2020 Apr 1;3(4):e202064. doi: 10.1001/jamanetworkopen.2020.2064. PMID: 32242908; PMCID: PMC7125433. 

  2. Flegal KM, Ioannidis JPA, Doehner W. Flawed methods and inappropriate conclusions for health policy on overweight and obesity: the Global BMI Mortality Collaboration meta-analysis. J Cachexia Sarcopenia Muscle. 2019 Feb;10(1):9-13. doi: 10.1002/jcsm.12378. PMID: 30656860; PMCID: PMC6438342. 

  3. Gardner CD, Trepanowski JF, Del Gobbo LC, Hauser ME, Rigdon J, Ioannidis JPA, Desai M, King AC. Effect of Low-Fat vs Low-Carbohydrate Diet on 12-Month Weight Loss in Overweight Adults and the Association With Genotype Pattern or Insulin Secretion: The DIETFITS Randomized Clinical Trial. JAMA. 2018 Feb 20;319(7):667-679. doi: 10.1001/jama.2018.0245. PMID: 29466592; PMCID: PMC5839290. 

  4. Stergiou GS, Alpert B, Mieke S, Asmar R, Atkins N, Eckert S, Frick G, Friedman B, Graßl T, Ichikawa T, Ioannidis JP, Lacy P, McManus R, Murray A, Myers M, Palatini P, Parati G, Quinn D, Sarkis J, Shennan A, Usuda T, Wang J, Wu CO, O'Brien E. A Universal Standard for the Validation of Blood Pressure Measuring Devices: Association for the Advancement of Medical Instrumentation/European Society of Hypertension/International Organization for Standardization (AAMI/ESH/ISO) Collaboration Statement. Hypertension. 2018 Mar;71(3):368-374. doi: 10.1161/HYPERTENSIONAHA.117.10237. PMID: 29386350. 

  5. Rattray NJW, Deziel NC, Wallach JD, Khan SA, Vasiliou V, Ioannidis JPA, Johnson CH. Beyond genomics: understanding exposotypes through metabolomics. Hum Genomics. 2018 Jan 26;12(1):4. doi: 10.1186/s40246-018-0134-x. PMID: 29373992; PMCID: PMC5787293.