S. Reza Jafarzadeh, DVM, MPVM, PhD
Assistant Professor
Boston University School of Medicine
Dept of Medicine
Clinical Epi Research & Training Section

PhD, University of California at Davis
DVM, Univ of Tehran

I am interested in the application of causal inference methods in observational studies, especially in the setting of longitudinal data, where time-varying exposures/treatments, time-varying confounders, and selection bias are often present. In particular, I am interested in the application of the variety of modern analytical techniques for estimating causal effects as well as the concepts such as direct and indirect effect decomposition (causal mediation analysis), causal interactions and sufficient causes, and causal interference and spill-over effects. These analytical techniques can be applied to broad areas of health sciences research, but I am particularly interested in the application of causal inference for comparative effectiveness research and implementation science. The methods are very useful for the development and assessment of strategies to improve population health using non-experimental data.

I am also interested in the application of Bayesian methods for evaluation of diagnostic tests and prevalence estimation in the absence of a perfect reference standard. These methods have broad applications in diagnosis and screening, and can be used to estimate true prevalence using imperfect tests.

2014 American College of Epidemiology (ACE): Travel Award
2013 American College of Epidemiology (ACE): Travel Award
2009-2010 University of California, Davis: Graduate Student Support Program (GSSP)
2007-2008 University of California, Davis: Epidemiology Graduate Group Fellowship
Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.

  1. Jafarzadeh SR, Felson DT. Corrected Estimates for the Prevalence of Self-Reported Doctor-Diagnosed Arthritis Among US Adults: Comment on the Article by Hootman et al. Arthritis Rheumatol. 2017 Aug; 69(8):1701-1702.View Related Profiles. PMID: 28482138; DOI: 10.1002/art.40144;.
  2. Munigala S, McMullen KM, Russo AJ, Jafarzadeh SR, Hoppe-Bauer J, Burnham CD, Warren DK. Reinstatement of Reflex Testing of Stool Samples for Vancomycin-Resistant Enterococci (VRE) Resulted in Decreased Incidence of Hospital-Associated VRE. Infect Control Hosp Epidemiol. 2017 May; 38(5):619-621. PMID: 28219459; DOI: 10.1017/ice.2017.19;.
  3. Hsueh K, Reyes M, Krekel T, Casabar E, Ritchie DJ, Jafarzadeh SR, Hays AJ, Lane MA, Durkin MJ. Effective Antibiotic Conservation by Emergency Antimicrobial Stewardship During a Drug Shortage. Infect Control Hosp Epidemiol. 2017 Mar; 38(3):356-359. PMID: 27917734; DOI: 10.1017/ice.2016.289;.
  4. Jafarzadeh SR, Thomas BS, Gill J, Fraser VJ, Marschall J, Warren DK. Sepsis surveillance from administrative data in the absence of a perfect verification. Ann Epidemiol. 2016 Oct; 26(10):717-722.e1. PMID: 27600804; DOI: 10.1016/j.annepidem.2016.08.002;.
  5. Jafarzadeh SR, Thomas BS, Warren DK, Gill J, Fraser VJ. Longitudinal Study of the Effects of Bacteremia and Sepsis on 5-year Risk of Cardiovascular Events. Clin Infect Dis. 2016 Aug 15; 63(4):495-500. PMID: 27193746; PMCID: PMC4967600; DOI: 10.1093/cid/ciw320;.
  6. O''Neil C, Ball K, Wood H, McMullen K, Kremer P, Jafarzadeh SR, Fraser V, Warren D. A Central Line Care Maintenance Bundle for the Prevention of Central Line-Associated Bloodstream Infection in Non-Intensive Care Unit Settings. Infect Control Hosp Epidemiol. 2016 Jun; 37(6):692-8. PMID: 26999746; PMCID: PMC4874848; DOI: 10.1017/ice.2016.32;.
  7. Thomas BS, Jafarzadeh SR, Warren DK, McCormick S, Fraser VJ, Marschall J. Temporal trends in the systemic inflammatory response syndrome, sepsis, and medical coding of sepsis. BMC Anesthesiol. 2015; 15:169. PMID: 26597871; PMCID: PMC4657245; DOI: 10.1186/s12871-015-0148-z;.
  8. Jafarzadeh SR, Thomas BS, Marschall J, Fraser VJ, Gill J, Warren DK. Quantifying the improvement in sepsis diagnosis, documentation, and coding: the marginal causal effect of year of hospitalization on sepsis diagnosis. Ann Epidemiol. 2016 Jan; 26(1):66-70. PMID: 26559330; PMCID: PMC4688185; DOI: 10.1016/j.annepidem.2015.10.008;.
  9. Jafarzadeh SR, Johnson WO, Gardner IA. Bayesian modeling and inference for diagnostic accuracy and probability of disease based on multiple diagnostic biomarkers with and without a perfect reference standard. Stat Med. 2016 Mar 15; 35(6):859-76. PMID: 26415924; DOI: 10.1002/sim.6745;.
  10. Jafarzadeh SR, Warren DK, Nickel KB, Wallace AE, Fraser VJ, Olsen MA. Bayesian estimation of the accuracy of ICD-9-CM- and CPT-4-based algorithms to identify cholecystectomy procedures in administrative data without a reference standard. Pharmacoepidemiol Drug Saf. 2016 Mar; 25(3):263-8. PMID: 26349484; PMCID: PMC4775358; DOI: 10.1002/pds.3870;.
Showing 10 of 17 results. Show More

This graph shows the total number of publications by year, by first, middle/unknown, or last author.

Bar chart showing 17 publications over 9 distinct years, with a maximum of 4 publications in 2015 and 2016

In addition to these self-described keywords below, a list of MeSH based concepts is available here.

Bayesian Methods
Causal Inference
Diagnostic Tests Evaluation
Estimation of True Prevalence with Imperfect Tests

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  • Co-Mentor or Peer Mentor
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  • Research / Scholarly Mentor
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650 Albany St Evans Biomed Research Ctr
Boston MA 02118
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(617) 638-5239 (fax)

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