Table 3.

Overview of the correlations (Pearson’s r) between symptoms of depression and sleep disturbances at the beginning and at the end of the study

	BDI and PSQI	Groups
		1, r	2, r	3, r	4, r
1	BDI pre	–	0.25*	−0.04	0.17
2	BDI post		–	−0.06	0.07
3	PSQI pre			–	−0.03
4	PSQI post				–

Note:

^*P<0.05.

Abbreviations: BDI, Beck Depression Inventory; PSQI, Pittsburgh Sleep Quality Index.