Factors associated with anxiety during the first two years of the COVID-19 pandemic in the United States: An analysis of the COVID-19 Citizen Science study.

After accounting for the general tendency for each participant to report higher or lower GAD-7 scores (Model 2), and adjusting for other covariates (Model 3), highly significant dose-response trends were evident (p < 2e-16 for each), adding 2–3 additional points to GAD-7 scores in highest categories of exposure ( Table 3 and S4 Table ).

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