| Placebo mean ± SD median (IQR) (n = 6) | SR Morphine 8 mg mean ± SD median (IQR) (n = 8) | SR Morphine 16 mg mean ± SD median (IQR) (n = 6) | Between-arm differences†|
---|---|---|---|---|
3-hour cortisol (nmol/L) | 10.35 ± 6.5 9.96 (5.2–13.8) | 6.46 ± 4.2 4.87 (3.7–7.8) | 5.52 ± 2.0 6.18 (3.0–7.1) | - |
6-hour cortisol (nmol/L) | 5.78 ± 4.1 4.18 (3.8–6.9) | 3.40 ± 1.8 3.02 (1.9–4.5) | 3.67 ± 1.5 3.44 (2.3–4.9) | - |
12-hour cortisol (nmol/L) | 3.26 ± 2.1 2.45 (1.9–4.7) | 2.49 ± 1.5 2.01 (1.5–3.0) | 2.90 ± 1.6 2.54 (1.5–4.3) | - |
Diurnal slope (Ln nmol/L/hr) | -0.12 ± 0.10 | -0.10 ± 0.05 | -0.08 ± 0.06 | F = 0.35, p = 0.71 |
Cortisol AUCg (nmol.hr/L) | 51.3 ± 22.9 44.0 (34.5–75.3) | 34.8 ± 16.4 28.5 (25.0–48.6) | 34.4 ± 8.3 35.2 (26.1–41.6) | - |
Ln cortisol AUCg (Ln nmol.hr/L) | 3.85 ± 0.39 | 3.44 ± 0.45 | 3.49 ± 0.28 | F = 1.56, p = 0.24 |