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Effects of forest type on cortisol levels in the (A) before-after studies and the (B) control trials. NS, not significant.
| A | Forest Type | Effect on Cortisol Levels | ||||
| Decrease | NS | Increase | Mixed Effects | Total | ||
| Broad-leaved | - | 2 | - | - | 2 | |
| Mixed | 2 | - | - | - | 2 | |
| Total | 2 | 2 | - | - | 4 | |
| B | Lower | NS | Higher | Mixed effects | Total | |
| Broad-leaved | 4 | 1 | - | - | 5 | |
| Mixed | 3 | - | - | - | 3 | |
| Total | 7 | 1 | - | - | 8 | |
