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Publications

Our lab’s research focuses on three key topics – Health Services, Etiology, and the Environment. Key articles within each category are listed below.

Please visit my Google Scholar page for a complete list of publications.

Health Services  

United States

  • Dagnino F, Korn S, Daniels D, Qian Z, Stelzl D, Zurl H, Pohl K, Hsieh MC, Hernandez BY, Piccolini A, Lughezzani G, Buffi NM, Lipsitz SR, Reich A, Weissman JS, Cole AP, Trinh QD, Iyer HS. Association of Travel Time With Definitive Prostate Cancer Treatment: A United States Registry Cohort Study. Cancer Med. 2026 Oct;15(10):e72376. doi: 10.1002/cam4.72376. PMID: 42864849; PMCID: PMC13658929.
  • Bailey AV, Frochen S, Kwan L, Siavoshi M, Haroldsen CL, Shelton JB, Rose B, Maxwell KN, Nickols NG, Yamoah K, Rebbeck TR, Schoen MW, Rettig MB, Vassy JL, Garraway IP*, Iyer HS*. A Comparison of Prostate Cancer Incidence and Mortality Rates in the Veterans Affairs Healthcare system and the Surveillance, Epidemiology, and End Results Program. Cancer Epidemiol Biomarkers Prev. 2026 Jul 30. doi: 10.1158/1055-9965.EPI-26-0248. Epub ahead of print. PMID: 42530444. *Indicates equal contributions.
  • Siavoshi M, Frochen S, Fakunle M, Wadhwa A, Green-Lott AY, Bailey AV, Kwan L, Haroldsen C, Effiong A, Rose BS, Rebbeck TR, Iyer HS*, Garraway IP*. Prostate-Specific Antigen Screening Patterns and Metastatic Prostate Cancer in US Veterans. JAMA Netw Open. 2026 Jul 1;9(7):e2621741. doi: 10.1001/jamanetworkopen.2026.21741. PMID: 42406398; PMCID: PMC13338809. *Indicates equal contributions.
  • Korn SM, Dagnino F, Daniels D, Qian Z, Zurl H, Pohl KK, Hsieh MC, Hernandez BY, Piccolini A, Cole AP, Reich AJ, Weissman JS, Trinh QD, Iyer HS. Travel Time to Treating Facility and Mortality in Men With Prostate Cancer. JAMA Netw Open. 2025 Dec 1;8(12):e2546812. doi: 10.1001/jamanetworkopen.2025.46812. PMID: 41335435; PMCID: PMC12676350.
  • Pradhan P, Iyer HS, Rebbeck TR. Geographic and Temporal Patterns of Screening for Breast, Cervical, and Colorectal Cancer in the US, 1997-2019. JAMA Netw Open. 2025 Oct 1;8(10):e2537905. doi: 10.1001/jamanetworkopen.2025.37905. PMID: 41105409; PMCID: PMC12534853.
  • Iyer HS, Kensler KH, Roscoe C, Opara C, He M, Kovac E, Garraway IP, Dien-Trinh Q, Rebbeck TR. Multidimensional Healthcare Access Barriers to Prostate-Specific Antigen Testing: A Nation-Wide Panel Study in the United States From 2006 to 2020. Cancer Med. 2024 Nov;13(21):e70358. doi: 10.1002/cam4.70358. PMID: 39503193; PMCID: PMC11538963.
  • Iyer HS, Stone BV, Roscoe C, Hsieh MC, Stroup AM, Wiggins CL, Schumacher FR, Gomez SL, Rebbeck TR, Trinh QD. Access to Prostate-Specific Antigen Testing and Mortality Among Men With Prostate Cancer. JAMA Netw Open. 2024 Jun 3;7(6):e2414582. doi: 10.1001/jamanetworkopen.2024.14582. PMID: 38833252; PMCID: PMC11151156.
  • Wadhwa A, Roscoe C, Duran EA, Kwan L, Haroldsen CL, Shelton JB, Cullen J, Knudsen BS, Rettig MB, Pyarajan S, Nickols NG, Maxwell KN, Yamoah K, Rose BS, Rebbeck TR, Iyer HS*, Garraway IP*. Neighborhood Deprivation, Race and Ethnicity, and Prostate Cancer Outcomes Across California Health Care Systems. JAMA Netw Open. 2024 Mar 4;7(3):e242852. doi: 10.1001/jamanetworkopen.2024.2852. PMID: 38502125; PMCID: PMC10951732. *Indicates equal contributions.

Sub-Saharan Africa

  • Friebel-Klingner TM, Rositch AF, Iyer HS, Wagner RB, Joo E, Kirahi M, Masalu N and Kohler RE (2026) Characterizing geospatial access to comprehensive breast cancer services in Northern Tanzania. Front. Oncol. 16:1952705. doi: 10.3389/fonc.2026.1952705
  • Iyer HS, Wolf NG, Flanigan JS, Castro MC, Schroeder LF, Fleming K, Vuhahula E, Massambu C. Evaluating urban-rural access to pathology and laboratory medicine services in Tanzania. Health Policy Plan. 2021 Aug 12;36(7):1116-1128. doi: 10.1093/heapol/czab078. PMID: 34212191; PMCID: PMC8359747.
  • Fleming KA, Horton S, Wilson ML, Atun R, DeStigter K, Flanigan J, Sayed S, Adam P, Aguilar B, Andronikou S, Boehme C, Cherniak W, Cheung AN, Dahn B, Donoso-Bach L, Douglas T, Garcia P, Hussain S, Iyer HS, Kohli M, Labrique AB, Looi LM, Meara JG, Nkengasong J, Pai M, Pool KL, Ramaiya K, Schroeder L, Shah D, Sullivan R, Tan BS, Walia K. The Lancet Commission on diagnostics: transforming access to diagnostics. Lancet. 2021 Oct 5:S0140-6736(21)00673-5. doi: 10.1016/S0140-6736(21)00673-5. Epub ahead of print. PMID: 34626542; PMCID: PMC8494468.
  • Iyer HS, Flanigan J, Wolf NG, Schroeder LF, Horton S, Castro MC, Rebbeck TR. Geospatial evaluation of trade-offs between equity in physical access to healthcare and health systems efficiency. BMJ Glob Health. 2020 Oct;5(10):e003493. doi: 10.1136/bmjgh-2020-003493. PMID: 33087394; PMCID: PMC7580044.

Etiology

Genetic ancestry (similarity), neighborhood context, and racial disparities

  • Iyer HS, Cheng I, Opara C, Lin K, Zeinomar N, Le Marchand L, Wilkens L, Shariff-Marco S, Conti DV, Haiman CA, Gomez SL, Rebbeck TR. African Genetic Ancestry, Structural and Social Determinants of Health, and Mortality in Black Adults. JAMA Netw Open. 2025 May 1;8(5):e2510016. doi: 10.1001/jamanetworkopen.2025.10016. PMID: 40358946; PMCID: PMC12076178.
  • Iyer HS, Zeinomar N, Omilian AR, Perlstein M, Davis MB, Omene CO, Pawlish K, Demissie K, Hong CC, Yao S, Ambrosone CB, Bandera EV, Qin B. Neighborhood Disadvantage, African Genetic Ancestry, Cancer Subtype, and Mortality Among Breast Cancer Survivors. JAMA Netw Open. 2023 Aug 1;6(8):e2331295. doi: 10.1001/jamanetworkopen.2023.31295. PMID: 37647068; PMCID: PMC10469269.
  • Iyer HS, Gomez SL, Cheng I, Rebbeck TR(2022) Relative impact of genetic ancestry and neighborhood socioeconomic status on all-cause mortality in self-identified African Americans. PLoS ONE 17(8): e0273735

Neighborhood context, environmental exposures, and cardiometabolic risk

  • Iyer HS, Perlstein M, Joseph SA, Roscoe C, Zeinomar N, Cole AP, Schumacher FR, Beebe-Dimmer J, Ruterbusch JJ, Wiggins CL, Stroup AM, Schwartz J, Hart JE, Rebbeck TR, Laden F. Associations of fine particulate matter pollution components with overall, prostate cancer, and cardiovascular disease mortality in men with prostate cancer: A cohort study. Environ Res. 2026 Mar 1;294:123909. doi: 10.1016/j.envres.2026.123909. Epub 2026 Jan 28. PMID: 41617107; PMCID: PMC13005271.
  • Iyer HS, Rebbeck TR, Elliott EG, Holmes MD, De Vivo I, Laden F, Hart JE. Cross-sectional Associations of Neighborhood Social and Environmental Contextual Factors with Telomere Length in Male and Female Health Professionals. Cancer Epidemiol Biomarkers Prev. 2025 Jun 3;34(6):1040-1043. doi: 10.1158/1055-9965.EPI-25-0061. PMID: 40172572; PMCID: PMC12133406.
  • Fiffer MR, Li H, Iyer HS, Nethery RC, Sun Q, James P, Yanosky JD, Kaufman JD, Hart JE, Laden F. Associations between air pollution, residential greenness, and glycated hemoglobin (HbA1c) in three prospective cohorts of U.S. adults. Environ Res. 2023 Oct 13:117371. doi: 10.1016/j.envres.2023.117371. Epub ahead of print. PMID: 37839528.
  • Iyer HS, Kensler KH, Vaselkiv JB, Stopsack KH, Roscoe C, Bandera EV, Qin B, Jang TL, Lotan TL, James P, Hart JE, Mucci LA, Laden F, Rebbeck TR. Associations between Etiologic or Prognostic Tumor Tissue Markers and Neighborhood Contextual Factors in Male Health Professionals Diagnosed with Prostate Cancer. Cancer Epidemiol Biomarkers Prev. 2023 Aug 1;32(8):1120-1123. doi: 10.1158/1055-9965.EPI-23-0217. PMID: 37249585; PMCID: PMC10527012.
  • Iyer HS, Vaselkiv JB, Stopsack KH, Roscoe C, DeVille NV, Zhang Y, Penney KL, Balk SP, Fiorentino M, Hart JE, James P, De Vivo I, Mucci LA, Laden F, Rebbeck TR. Influence of Neighborhood Social and Natural Environment on Prostate Tumor Histology in a Cohort of Male Health Professionals. Am J Epidemiol. 2023 Sep 1;192(9):1485-1498. doi: 10.1093/aje/kwad112. PMID: 37139568.
  • Iyer HS, Hart JE, Fiffer MR, Elliott EG, Yanosky JD, Kaufman JD, Puett RC, Laden F. Impacts of long-term ambient particulate matter and gaseous pollutants on circulating biomarkers of inflammation in male and female health professionals. Environ Res. 2022 Nov;214(Pt 1):113810. doi: 10.1016/j.envres.2022.113810. Epub 2022 Jul 4. PMID: 35798268.
  • Iyer HS, Hart JE, James P, Elliott EG, DeVille NV, Holmes MD, De Vivo I, Mucci LA, Laden F, Rebbeck TR. Impact of neighborhood socioeconomic status, income segregation, and greenness on blood biomarkers of inflammation. Environ Int. 2022 Apr;162:107164. doi: 10.1016/j.envint.2022.107164. Epub 2022 Mar 5. PMID: 35255255; PMCID: PMC8985077.
  • Iyer HS, James P, Valeri L, Bajunirwe F, Nankya-Mutyoba J, Njelekela M, Chiwanga F, Sewram V, Ajayi I, Adebamowo C, Dalal S, Reid TG, Rebbeck TR, Adami HO, Holmes MD. Neighborhood greenness and burden of non-communicable diseases in Sub-Saharan Africa: A multi-country cross-sectional study. Environ Res. 2021 May;196:110397. doi: 10.1016/j.envres.2020.110397. Epub 2020 Oct 31. PMID: 33130166; PMCID: PMC8085185.

Environment

  • Cole AP, Qian Z, Chen YJ, Beatrici E, Acharya R, Daniels D, Dasgupta P, Kibel AS, Lipsitz SR, Trinh QD, Iyer HS. Evaluating Potential Impacts of Climate-Related Natural Disasters on Subsequent Prostate Cancer Mortality. Cancer Med. 2026 Feb;15(2):e71618. doi: 10.1002/cam4.71618. PMID: 41674181; PMCID: PMC12895080.
  • Iyer HS, Joseph SA, Varga J, Opara C, Graber JM, Laumbach RJ, Georgopoulos PG, Hart JE, Post GB, Barrett ES. Impact of regulatory actions to establish maximum contaminant levels on per- and polyfluoroalkyl substances in New Jersey public water systems. Environ Int. 2026 Mar;209:110179. doi: 10.1016/j.envint.2026.110179. Epub 2026 Feb 28. PMID: 41780409; PMCID: PMC13050551.
  • Cole AP, Qian Z, Gupta N, Leapman M, Zurl H, Trinh QD, Sherman JD, Loeb S, Iyer HS. Urology on a changing planet: links between climate change and urological disease. Nat Rev Urol. 2025 Jan 28. doi: 10.1038/s41585-024-00979-4. Epub ahead of print. PMID: 39875561.
  • Liu K, Iyer HS, Lu Y, Laden F, Song M, Roscoe C. Neighborhood socioeconomic disparities in cancer incidence following a hypothetical intervention to increase residential greenspace cover in the UK Biobank cohort. Environ Res. 2025 Feb 1;266:120387. doi: 10.1016/j.envres.2024.120387. Epub 2024 Nov 19. PMID: 39566677.
  • Roscoe C, Grady ST, Hart JE, Iyer HS, Manson JE, Rexrode KM, Rimm EB, Laden F, James P. Association between Noise and Cardiovascular Disease in a Nationwide U.S. Prospective Cohort Study of Women Followed from 1988 to 2018. Environ Health Perspect. 2023 Dec;131(12):127005. doi: 10.1289/EHP12906. Epub 2023 Dec 4. PMID: 38048103; PMCID: PMC10695265.
  • Chowdhury-Paulino IM, Hart JE, James P, Iyer HS, Wilt GE, Booker BD, Nethery RC, Laden F, Mucci LA, Markt SC. Association between Outdoor Light at Night and Prostate Cancer in the Health Professionals Follow-up Study. Cancer Epidemiol Biomarkers Prev. 2023 Oct 2;32(10):1444-1450. doi: 10.1158/1055-9965.EPI-23-0208. PMID: 37462694; PMCID: PMC10592318.
  • DeVille NV, Iyer HS, Holland I, Bhupathiraju SN, Chai B, James P, Kawachi I, Laden F, Hart JE. Neighborhood socioeconomic status and mortality in the nurses’ health study (NHS) and the nurses’ health study II (NHSII). Environ Epidemiol. 2023 Feb;7(1):e235. doi: 10.1097/EE9.0000000000000235. eCollection 2023 Feb. PubMed PMID: 36777531; PubMed Central PMCID: PMC9916023.
  • Iyer HS, DeVille NV, Stoddard O, Cole J, Myers SS, Li H, Elliott EG, Jimenez MP, James P, Golden CD. Sustaining planetary health through systems thinking: Public health’s critical role. SSM Popul Health. 2021 Jun 11;15:100844. doi: 10.1016/j.ssmph.2021.100844. PMID: 34179331; PMCID: PMC8213960.
  • Iyer HS, James P, Valeri L, Hart JE, Pernar CH, Mucci LA, Holmes MD, Laden F, Rebbeck TR. The association between neighborhood greenness and incidence of lethal prostate cancer: A prospective cohort study. Environ Epidemiology. 2020 Apr 9;4(2):e091. doi: 10.1097/EE9.0000000000000091. PMID: 32656487; PMCID: PMC7319229.
  • Iyer HS, Valeri L, James P, Chen JT, Hart JE, Laden F, Holmes MD, Rebbeck TR. The contribution of residential greenness to mortality among men with prostate cancer: a registry-based cohort study of Black and White men. Environ Epidemiol. 2020 Apr 9;4(2):e087. doi: 10.1097/EE9.0000000000000087. PMID: 32337472; PMCID: PMC7147390.