Table 5.
Mean differences according to the quartile of diameter.
| Quartile | Mean difference vs. 1st quartile (95% CI) | p-value | |
|---|---|---|---|
| Cortisol after 1-mg DST (nmol/L) | 2nd (14.1–18 mm) | 10.46 nmol/L (−14.84 to 35.77) | 0.637 |
| 3rd (18.1–23.88 mm) | 19.23 nmol/L (−7.24 to 45.69) | 0.207 | |
| 4th (23.9–42.2 mm) | 60.08 nmol/L (34.03–6.1) | <0.0001 | |
| Diameter (mm) | 2nd (14.1–18 mm) | 0.46 mm (−0.6 to 1.53) | 0.604 |
| 3rd (18.1–23.88 mm) | 0.72 mm (−0.363 to 1.81) | 0.273 | |
| 4th (23.9–42.2 mm) | 1.74 mm (0.67–2.82) | <0.0001 |
95% CI, 95% confidence interval.