Determining a cutoff score for the family burden interview schedule using three statistical methods

Table 2 Linear regression of burden scores on PHQ-9/GAD-7 scores

FBIS	Model r²	unstandardized coefficients
FBIS	Model r²	B	Std.Error	t	Sig.
(Constant)^a	0.249	17.12	0.83	20.52	< 0.001
PHQ ^a	0.249	0.67	0.07	9.8	< 0.001
(Constant)^b	0.235	16.85	0.87	19.41	< 0.001
GAD^b	0.235	0.72	0.08	9.45	< 0.001

Dependent variable: FBIS total burden scores
^a Using the PHQ-9 cutoff score of 10 results in a burden score of 23.82(17.12c + 0.67b*10 = 23.82)
^b Using the GAD-7 cutoff score of 10 results in a burden score of 24.05(16.85c + 0.72b*10 = 24.05)

ISSN: 1471-2288