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. 2007 May 31;115(10):1497–1502. doi: 10.1289/ehp.10144

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Results of the interaction model showing the relationship between adducts and MDI in the ETS-exposed and ETS-unexposed groups. The relation between MDI and adducts in the ETS-exposed group was of borderline significance (β = −8.07, p = 0.07). The relation between MDI and adducts in the ETS-unexposed group was not significant (β = 4.18, p = 0.11). The 95% CI for the β for the ETS-exposed group is −17.10 to 0.96; the 95% CI of the β for the ETS-unexposed group is −0.95 to 9.31.