Observational Study of the Association between Air Cadmium Exposure and Prostate Cancer Aggressiveness at Diagnosis among a Nationwide Retrospective Cohort of 230,540 Patients in the United States

Vishwaarth Vijayakumar, Michael R. Abern, Jyotsna S. Jagai and André Kajdacsy-Balla
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Vishwaarth Vijayakumar: Department of Pathology, College of Medicine, University of Illinois at Chicago, 840 S Wood St, Suite 130 CSN, Chicago, IL 60612-4325, USA
Michael R. Abern: Department of Urology, College of Medicine, University of Illinois at Chicago, 1801 W Taylor St #1e, Chicago, IL 60612-4795, USA
Jyotsna S. Jagai: School of Public Health, University of Illinois at Chicago, 1603 W Taylor St, Chicago, IL 60612-4310, USA
André Kajdacsy-Balla: Department of Pathology, College of Medicine, University of Illinois at Chicago, 840 S Wood St, Suite 130 CSN, Chicago, IL 60612-4325, USA

IJERPH, 2021, vol. 18, issue 16, 1-15

Abstract: Although studies have investigated cadmium and prostate cancer (PC) incidence and mortality, the role of cadmium in PC progression might be more clinically relevant. In this observational study, we assessed the association between air cadmium exposure and PC aggressiveness, with PC stage defined as metastatic or localized and Gleason grade defined as high (Gleason score ? 8) or low (Gleason score ? 6) among PC patients from the 2010–2014 US Surveillance, Epidemiology, and End Results database. The 2005 and 2011 National Air Toxics Assessment provided county-level air cadmium concentrations. Results were presented as odds ratios (OR) with 95% confidence intervals (CI) and were calculated using random intercept mixed effects logistic regression, comparing the 80th to 20th percentile of exposure. We adjusted for age, sociodemographic status, smoking prevalence, and overall air quality at the county level, and stratified by race, age, and degree of urbanization. The cohort consisted of 230,540 cases from 493 counties. Strong associations were observed in nonmetropolitan, urban areas: (OR 1.26, CI 1.14–1.39) for metastatic vs. localized and (OR 1.41, CI 1.27–1.57) for high- vs. low-grade PC where 40 million Americans reside. This study may be hypothesis-generating to inform future studies and public health measures.

Keywords: cadmium; air pollution; prostate cancer; heavy metals; cancer progression (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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