Pregnancy average PM 2.5 exposure showed increased depression at 12 months (OR = 1.33, 95% CI: 0.83–2.15), although this association did not reach statistical significance.
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Prenatal ambient air pollution and maternal depression at 12 months postpartum in the MADRES pregnancy cohort.
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The sentences
The effect estimate was slightly attenuated with Firth’s correction (OR = 1.47, 95% CI: 0.98–2.10) and the association remained marginally significant.
The effect for second trimester PM 10 was similar and was borderline significant (OR = 1.58, 95% CI: 0.97–2.56).