Scatter Plot of the Relationship Between Perceived Stress Score (x-axis) and log10 Cortisol Concentration(Y-axis) showing the fitted line and 95% confidence.

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Scatter Plot of the Relationship Between Perceived Stress Score (x-axis) and log10 Cortisol Concentration(Y-axis) showing the fitted line and 95% confidence interval (n=116 observations). Scatter Plot of the Relationship Between Perceived Stress Score (x-axis) and log10 Cortisol Concentration(Y-axis) showing the fitted line and 95% confidence interval (n=116 observations). The Pearson correlation coefficient for this relationship is -0.188, p=0.044. Cynthia A. Lambert et al. J Dent Hyg 2014;88:5-12 ©2014 by American Dental Hygienists Association