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The Pittsburgh Sleep Quality Index
| PEA | Placebo | |
|---|---|---|
| Baseline | 11.2 ± 2.8 | 11.7 ± 3.3 |
| Day 5 | 9.0 ± 2.7 | 9.8 ± 3.4 |
| Week 2 | 8.2 ± 2.7 | 8.8 ± 3.3 |
| Week 4 | 7.8 ± 3.0 | 8.2 ± 3.4 |
| Week 8 | 7.6 ± 3.1 | 7.7 ± 3.6 |
N.B. Data presented as mean ± standard deviation; PEA palmitoylethanolamide
