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Correlation between changes in urinary free cortisol levels and other parameters.
| Correlation coefficient | p-Value | |
|---|---|---|
| Changes in mean value of salivary cortisol levels | 0.75 | 0.007 |
| Changes in area under the curve of salivary cortisol levels | 0.70 | 0.016 |
| Changes in morning (6:00) serum cortisol levels | 0.42 | 0.200 |
| Changes in morning (6:00) salivary cortisol levels | 0.70 | 0.005 |
| Changes in midnight (22:00) salivary cortisol levels | −0.04 | 0.915 |
