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RCS-based predicted relative risk by PM2.5 concentration (μg/m3) for the Stacked CanCHEC cohort by aggregated causes of death: (top row) nonaccidental; (middle row) cardiovascular; (bottom row) respiratory. The left column shows PM2.5 concentration unadjusted for Ox; the right column shows PM2.5 concentration adjusted for linear Ox. Mean predictions are displayed as solid blue lines with 95% CIs as grey- shaded areas. Green x-axis tick marks show RCS knot locations.
