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Model-estimated change in 8am (i.e., awakening) salivary cortisol levels from pre- to post-chamomile treatment, as a function of GAD-7 symptom improvement during treatment. Model covariates have been set to their mean values, and bars are standard errors for the estimates. Positive values indicate that CORT was higher at 8am post-treatment as compared to pre-treatment. Increased symptom improvement was associated with relative increases in 8am CORT (p = 0.002).
