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Fig. 2 | Environmental Health

Fig. 2

From: Association between long-term exposure to PM2.5 and thyroid nodules in school-aged children and adolescents: a cross-sectional study in Eastern China

Fig. 2

The concentration–response relationship between long-term PM2.5 exposure and thyroid nodules. The solid blue line represents the effect estimates. The 95% confidence intervals are shown by the gray areas. The inflection point for the risk associated with thyroid nodules is shown by the red dotted line. Abbreviations: PM2.5, particulate matter ≤ 2.5 μm in aerodynamic diameter; OR, odds ratio; CI, confidence interval

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Environmental Health

ISSN: 1476-069X