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. Author manuscript; available in PMC: 2023 Aug 1.
Published in final edited form as: Lung Cancer. 2022 Jun 10;170:65–73. doi: 10.1016/j.lungcan.2022.06.004

Fig. 1.

Fig. 1.

Adjusted HRs and 95% confidence intervals for all-cause mortality associated with a 1 unit increase in quartile categorized air pollutant exposures within each SEER cancer stage: Localized—Cancer has shown no sign of spread and is limited to the place where it started; Regional—Cancer has spread to nearby ares of the body; Distant—Cancer has spread to distant parts of the body. HRs of the time-dependent covariates are shown for before (black) and after (red) time splits for NO2 and PM2.5. Polynomial spline curves at 2 degrees of freedom shown for continuous measurements (blue).