Photo of Jag Chhatwal, PhD

Jag Chhatwal, PhD

Massachusetts General Hospital

Massachusetts General Hospital
Phone: (617) 724-4487


jagchhatwal@mgh.harvard.edu

Photo of Jag Chhatwal, PhD

Massachusetts General Hospital
Phone: (617) 724-4487


jagchhatwal@mgh.harvard.edu

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Jag Chhatwal, PhD

Massachusetts General Hospital

EDUCATIONAL TITLES

  • Associate Professor, Radiology, Harvard Medical School
  • Director, Institute for Technology Assessment, Massachusetts General Hospital

HCC PROGRAM AFFILIATION

Research Abstract

My primary research interests lie in the area of medical decision-making, covering applications as well as methods for cost-effectiveness and decision analysis. My research uses operations research methods to improve clinical decision-making and inform health policies. Examples of ongoing/past projects include optimal timing of breast biopsy after a mammography exam, optimal surveillance strategies for hepatocellular carcinoma, and cost-effectiveness of hepatitis C screening and treatment.

Publications from Harvard Catalyst Profiles

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  • Singal AG, Haaland B, Parikh ND, Ozbay AB, Kirshner C, Chakankar S, Porter K, Chhatwal J, Ayer T. Comparison of a multitarget blood test to ultrasound and alpha-fetoprotein for hepatocellular carcinoma surveillance: Results of a network meta-analysis. Hepatol Commun 2022. PubMed
  • Damgacioglu H, Sonawane K, Chhatwal J, Lairson DR, Clifford GM, Giuliano AR, Deshmukh AA. Long-term impact of HPV vaccination and COVID-19 pandemic on oropharyngeal cancer incidence and burden among men in the USA: A modeling study. Lancet Reg Health Am 2022; 8:100143. PubMed
  • Mueller PP, Chen Q, Ayer T, Nemutlu GS, Hajjar A, Bethea ED, Peters MLB, Lee BP, Janjua NZ, Kanwal F, Chhatwal J. Duration and cost-effectiveness of hepatocellular carcinoma surveillance in hepatitis C patients after viral eradication. J Hepatol 2022. PubMed
  • Deshmukh AA, Suk R, Shiels MS, Damgacioglu H, Lin YY, Stier EA, Nyitray AG, Chiao EY, Nemutlu GS, Chhatwal J, Schmeler K, Sigel K, Sonawane K. Incidence Trends and Burden of Human Papillomavirus-Associated Cancers Among Women in the United States, 2001-2017. Journal of the National Cancer Institute 2021; 113:792-796. PubMed
  • He T, Li K, Roberts MS, Spaulding AC, Ayer T, Grefenstette JJ, Chhatwal J. Prevention of Hepatitis C by Screening and Treatment in U.S. Prisons. Ann Intern Med 2016; 164:84-92. PubMed
  • Elbasha EH, Chhatwal J. Myths and Misconceptions of Within-Cycle Correction: A Guide for Modelers and Decision Makers. 2016; 34:13-22. PubMed
  • Elbasha EH, Chhatwal J. Theoretical Foundations and Practical Applications of Within-Cycle Correction Methods. Med Decis Making 2016; 36:115-31. PubMed
  • Deshmukh AA, Chhatwal J, Chiao EY, Nyitray AG, Das P, Cantor SB. Long-Term Outcomes of Adding HPV Vaccine to the Anal Intraepithelial Neoplasia Treatment Regimen in HIV-Positive Men Who Have Sex With Men. Clin Infect Dis 2015; 61:1527-35. PubMed
  • Chhatwal J, Chen Q, Kanwal F. Why We Should Be Willing to Pay for Hepatitis C Treatment. Clin Gastroenterol Hepatol 2015; 13:1711-3. PubMed
  • Chhatwal J, Mathisen M, Kantarjian H. Are high drug prices for hematologic malignancies justified? A critical analysis. Cancer 2015; 121:3372-9. PubMed
  • Chhatwal J, He T. Economic evaluations with agent-based modelling: an introduction. 2015; 33:423-33. PubMed
  • Chhatwal J, Kanwal F, Roberts MS, Dunn MA. Cost-effectiveness and budget impact of hepatitis C virus treatment with sofosbuvir and ledipasvir in the United States. Ann Intern Med 2015; 162:397-406. PubMed
  • Kabiri M, Jazwinski AB, Roberts MS, Schaefer AJ, Chhatwal J. The changing burden of hepatitis C virus infection in the United States: model-based predictions. Ann Intern Med 2014; 161:170-80. PubMed
  • Alagoz O, Chhatwal J, Burnside ES. Optimal Policies for Reducing Unnecessary Follow-up Mammography Exams in Breast Cancer Diagnosis. Decis Anal 2013; 10:200-224. PubMed
  • Elbasha EH, Chhatwal J, Ferrante SA, El Khoury AC, Laires PA. Cost-effectiveness analysis of boceprevir for the treatment of chronic hepatitis C virus genotype 1 infection in Portugal. Appl Health Econ Health Policy 2013; 11:65-78. PubMed
  • Burnside ES, Chhatwal J, Alagoz O. What is the optimal threshold at which to recommend breast biopsy? PLoS ONE 2012; 7:e48820. PubMed
  • Chhatwal J, Alagoz O, Burnside ES. Optimal Breast Biopsy Decision-Making Based on Mammographic Features and Demographic Factors. Oper Res 2010; 58:1577-1591. PubMed
  • Ayer T, Chhatwal J, Alagoz O, Kahn CE, Woods RW, Burnside ES. Informatics in radiology: comparison of logistic regression and artificial neural network models in breast cancer risk estimation. Radiographics 2010; 30:13-22. PubMed
  • Burnside ES, Davis J, Chhatwal J, Alagoz O, Lindstrom MJ, Geller BM, Littenberg B, Shaffer KA, Kahn CE, Page CD. Probabilistic computer model developed from clinical data in national mammography database format to classify mammographic findings. Radiology 2009; 251:663-72. PubMed
  • Chhatwal J, Alagoz O, Lindstrom MJ, Kahn CE, Shaffer KA, Burnside ES. A logistic regression model based on the national mammography database format to aid breast cancer diagnosis. AJR Am J Roentgenol 2009; 192:1117-27. PubMed
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