University of Vermont

The University of Vermont Cancer Center

Bio for Thomas Ahern, PhD, MPH
Thomas Ahern, PhD, MPH

Thomas Ahern, PhD, MPH

Assistant Professor
Division of Surgical Research
Department of Surgery

Contact Information
Office Location:
Surgery, Given Rm D317A


PhD, Epidemiology, Boston University, Boston, MA (2010)
MPH, Epidemiology, Boston University, Boston, MA (2006)
BS, Biochemistry, University of Vermont, Burlington, VT (1999)

Postdoctoral Training

Post-Doctoral Research Fellow, Cancer Epidemiology, Harvard School of Public Health, Boston, MA (2010-2012)

Academic Appointments

Assistant Professor, Department of Surgery, University of Vermont College of Medicine, Burlington, VT (2013-Present)
Instructor, Department of Medicine, Harvard Medical School, Boston, MA (2011-2012)
Visiting Fellow Department of Clinical Epidemiology, Aarhus University, Denmark
Associate Epidemiologist, Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital, Boston, MA (2012-2013)

Awards and Honors

 Scholar-in-Training Award, Molecular Epidemiology Working Group, American Association for Cancer Research (2012)
Clinical Research Student Loan Repayment Program, National Institutes of Health (2012)
Fred F. Kadlubar Memorial Scholar-in-Training Award, American Association for Cancer Research (2011)
Best Presentation by a Post-Doctoral Fellow, Harvard School of Public Health (2011) 


Borgquist S, Tamimi RM, Chen WY, Garber JE, Eliassen AH, Ahern TP. Statin Use and Breast Cancer Risk in the Nurses' Health Study. Cancer Epidemiol Biomarkers Prev. 2016 Jan;25(1):201-6.

Ahern TP, Horváth-Puhó E, Spindler KL, Sørensen HT, Ording AG, Erichsen R.  Colorectal cancer, comorbidity, and risk of venous thromboembolism: assessment of biological interactions in a Danish nationwide cohort. Br J Cancer. 2016 Jan 12;114(1):96-102.

Cronin-Fenton DP, Heide-Jørgensen U, Ahern TP, Lash TL, Christiansen PM, Ejlertsen B, Sjøgren P, Kehlet H, Sørensen HT. Opioids and breast cancer recurrence: A Danish population-based cohort study. Cancer. 2015 Oct 1;121(19):3507-14.

Lietzen LW, Ahern T, Christiansen P, Jensen AB, Sørensen HT, Lash TL, Cronin-Fenton DP. Glucocorticoid prescriptions and breast cancer recurrence: a Danish nationwide prospective cohort study. Ann Oncol. 2014 Dec;25(12):2419-25.

Ahern TP, Lash TL, Damkier P, Christiansen PM, Cronin-Fenton DP. Statins and breast cancer prognosis: evidence and opportunities. Lancet Oncol. 2014 Sep;15(10):e461-8.

Ahern TP, Tamimi RM, Rosner BA, Hankinson SE. Digoxin use and risk of invasive breast cancer: evidence from the Nurses' Health Study and meta-analysis. Breast Cancer Res Treat 2014 Apr;144(2):427-35.

Cronin-Fenton DP, Christensen M, Lash TL, Ahern TP, Pedersen L, Garne JP, Ewertz M, Autrup H, Sørensen HT, Hamilton-Dutoit S. Manganese superoxide dismutase and breast cancer recurrence: a Danish clinical registry-based case-control study, and a meta-analysis. PLoS One. 2014 Jan 31;9(1):e87450.

Ahern TP, Hankinson SE, Willett WC, Pollak MN, Eliassen AH, Tamimi RM. Plasma C-peptide, mammographic breast density, and risk of invasive breast cancer. Cancer Epidemiol Biomarkers Prev. 2013 Oct;22(10):1786-96.

Sørensen GV, Ganz PA, Cole SW, Pedersen LA, Sørensen HT, Cronin-Fenton DP, Garne JP, Christiansen PM, Lash TL, Ahern TP. Use of ß-blockers, angiotensin-converting enzyme inhibitors, angiotensin II receptor blockers, and risk of breast cancer recurrence: a Danish nationwide prospective cohort study. J Clin Oncol. 2013 Jun 20;31(18):2265-72.

Lash TL, Ahern TP. Bias analysis to guide new data collection. Int J Biostat. 2012;8(2):4679.

Cronin-Fenton DP, Hellberg Y, Lauridsen KL, Ahern TP, Garne JP, Rosenberg C, Silliman RA, Sørensen HT, Lash TL, Hamilton-Dutoit S. Factors associated with concordant estrogen receptor expression at diagnosis and centralized re-assay in a Danish population-based breast cancer study. Acta Oncol. 2012 Feb;51(2):254-61.

Ahern TP, Pedersen L, Sværke C, Rothman KJ, Sørensen HT, Lash TL. The association between vitamin K antagonist therapy and site-specific cancer incidence estimated by using heart valve replacement as an instrumental variable. Am J Epidemiol. 2011 Dec 15;174(12):1382-90.

Ahern TP, Pedersen L, Tarp M, Cronin-Fenton DP, Garne JP, Silliman RA, Sørensen HT, Lash TL. Statin prescriptions and breast cancer recurrence risk: a Danish nationwide prospective cohort study. J Natl Cancer Inst. 2011;103(19):1461-8.

Ahern TP, Christensen M, Cronin-Fenton DP, Lunetta KL, Søiland H, Gjerde J, Garne JP, Rosenberg CL, Silliman RA, Sørensen HT, Lash TL, Hamilton-Dutoit S. Functional polymorphisms in UDP-glucuronosyl transferases and recurrence in tamoxifen-treated breast cancer survivors. Cancer Epidemiol Biomarkers Prev. 2011 Sep;20(9):1937-43.

Publications in PubMed