Table 4.

Pearson’s correlation of change scores (N = 416)

	BAI ∆	BDI-II ∆	EQ-5D value ∆
BAI ∆
BDI-II ∆	0.49
EQ-5D value ∆	-0.43	-0.54
EQ VAS ∆	-0.34	-0.58	0.55

Note. Change scores calculated by subtracting the score at end of treatment from the score at baseline. Abbreviations: BAI, the Beck Anxiety Inventory; BDI-II, the Beck Depression Inventory-II. Pearson’s correlation < 0.40 are considered weak, 0.40–0.49 moderate, and > 0.50 are considered strong [37]