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. Author manuscript; available in PMC: 2013 Mar 1.
Published in final edited form as: Hypertension. 2012 Jan 23;59(3):558–563. doi: 10.1161/HYPERTENSIONAHA.111.180778

Figure 2.

Figure 2

Dose-response relationship between quintiles of mean PM2.5 levels 7 days prior to assessment and change in ΔSBP (A.) and ΔDBP (B.) 1 minute after standing, controlling for potential confounders as in Figure 1. Solid circles denote the magnitude of the association at quintiles of exposure and the vertical lines denote 95% confidence intervals. The x-axis shows the median PM2.5 levels (μg/m3) in each quintile.