Occupational Risk of COPD: Insights from a Large Cohort Study.

Chronic obstructive pulmonary disease (COPD) remains a critical public health challenge globally. While tobacco smoking is the most recognized risk factor, occupational exposures-especially to vapors, gases, dusts, and fumes (VGDF)-are increasingly acknowledged as substantial contributors. This study offers a secondary reanalysis of publicly available Canadian data, originally collected through the occupational disease surveillance system (ODSS), to investigate COPD risk across diverse occupational sectors and gender strata. By transforming the original hazard ratio data into intuitive visual representations-including scatter plots, histograms, violin plots, and bar charts-we expose previously overlooked gender disparities and risk clusters. Notably, female workers in cleaning, textile, and food preparation services face equally high or even elevated risks compared to men in construction or manufacturing. Our findings underscore methodological limitations in prior studies-such as insufficient detail in indirect smoking adjustment, reliance on outdated occupational coding systems, and lack of individual-level variables-and emphasize the need for gender-sensitive surveillance, policy-oriented communication, and international data-sharing frameworks. This study reframes occupational COPD not only as a biomedical condition but as a social justice issue shaped by labor inequality and surveillance blind spots.