For all cancer mortality, we also identified an increasing trend across cumulative exposure categories ( P trend = 0.005); however, the SMRs were not statistically significantly elevated within any exposure category.
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Historical Study of Workers Exposed to Styrene in the US Reinforced Plastics and Composite Industry: Findings From a 2019 Mortality Update.
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Internal Comparisons We did not identify any increased risk of lung cancer associated with cumulative styrene exposure or average intensity of styrene exposure based on internal comparisons but did identify a decreasing trend of lung cancer risk associated with increasing duration of styrene exposure (Table 5 ).