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John McCray Dement

Professor Emeritus in Family Medicine and Community Health
Family Medicine and Community Health, Occupational & Environmental
Duke Box 3834, Durham, NC 27710
2200 W Main St Ste 400, Durham, NC 27705

Overview


Research interest focus on occupational and environmental epidemiology including exposure assessments for epidemiological studies. Exposure assessments involve the development of new and innovative exposure assessment methods and application of these methods to cohort and case-control studies of exposed populations. Research topics include occupational lung diseases and occupational and environmental carcinogens such as asbestos fibers, man-made fibers, and benzene. Epidemiological studies involve the development of quantitative risk estimates for occupational diseases among cohorts of workers exposed to substances such as asbestos. Other ongoing occupational lung disease studies include assessments of exposures and lung diseases among construction workers at Department of Energy nuclear facilities. The objective of this research is to identify possible occupational and personal factors related to the risk of lung diseases such as asbestosis, silicosis, and COPD.

Construction industry health and safety research is another area of research focus. This research includes development of epidemiological surveillance methods for work related diseases and injuries using existing data sources such as medical claims and worker compensation data. Work related musculoskeletal diseases among carpenters are currently being studied in collaboration with the United Brotherhood of Carpenters.

Other ongoing research includes the development and implementation occupational safety and health surveillance systems for health care workers. The objective of this research is to develop, implement, and evaluate a model surveillance program which can be implemented in other health care settings. This project involves both population-based and case-based surveillance strategies. Surveillance and prevention programs for workplace violence experienced by health care workers is a research interest,

Prevention and management of diabetes and cardiovascular diseases among workers participating in multi-employer health funds is a current area of research interest.

Current Appointments & Affiliations


Professor Emeritus in Family Medicine and Community Health · 2017 - Present Family Medicine and Community Health, Occupational & Environmental, Family Medicine and Community Health

Recent Publications


Impact of Secondary Prevention on Mortality in the Building Trades National Medical Screening Program: Effectiveness of Occupational High-Risk Management.

Journal Article Am J Ind Med · January 6, 2026 BACKGROUND: Since 1997 the Building Trades National Medical Screening Program (BTMed) has offered medical exams to construction workers employed in US nuclear weapons facilities. The process consists of two steps: (1) a detailed work history interview; and ... Full text Link to item Cite

Evaluation of Early Lung Cancer Detection in a Population at High Risk due to Occupation.

Journal Article Am J Ind Med · December 8, 2025 BACKGROUND: We assessed the effectiveness of early lung cancer detection (ELCD) in reducing lung cancer mortality in a high-risk occupational cohort using low-dose CT (LDCT) with eligibility criteria that included age, smoking, and occupational risk factor ... Full text Link to item Cite

Is Work-Related Hearing Loss Associated With Dementia? Evidence From a High-Risk Population.

Journal Article Am J Ind Med · November 2025 BACKGROUND: Age-related hearing loss is associated with increased dementia risk. We examined the association between hearing loss and dementia in a population at high risk for hearing loss from occupational noise exposures. METHODS: We conducted cross-sect ... Full text Link to item Cite
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Recent Grants


Disparities Research Surveillance

ResearchPrincipal Investigator · Awarded by CPWR-The center for construction research and training · 2014 - 2016

Development & Evaluation of a Comprehensive Hospital Workplace Violence Surveillance System

ResearchPrincipal Investigator · Awarded by University of Texas Health Science Center at Houston · 2014 - 2016

Steps to Health: Targeting Obesity in the Health Care Workplace

Clinical TrialCo-Principal Investigator · Awarded by National Institute for Occupational Safety and Health · 2010 - 2016

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Education, Training & Certifications


University of North Carolina, Chapel Hill · 1980 Ph.D.