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Granger causality test results.
| Causality test | Positive association (n) | Negative association (n) | Total (n) | |||||
| Time in bed (TIB) |
|
|
|
|||||
|
|
TIB Granger causes depression core symptoms | 3 | 0 | 3 | ||||
|
|
Depression core symptoms Granger causes TIB | 3 | 1 | 4 | ||||
|
|
Mutual causality | 0 | 0 | 0 | ||||
| Total sleep time (TST) |
|
|
|
|||||
|
|
TST Granger causes depression core symptoms | 3 | 3 | 6 | ||||
|
|
Depression core symptoms Granger causes TST | 2 | 1 | 3 | ||||
|
|
Mutual causality | 0 | 0 | 0 | ||||
