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

Table 3 Contingency analysis of caregivers by depression and burden groups

Cutoff scores.	High PHQ-9	Low PHQ-9	Total N	Chi-square	Sig.^a	Sensitivity	Specificity	Youden index
High burden> 20	112	69	181	51.198	< 0.001	84.2%	56.6%	40.8%
Low burden<=20	21	90	111
High burden> 21	107	64	171	48.227	< 0.001	80.5%	59.7%	40.2%
Low burden<=21	26	95	121
High burden> 22	104	57	161	52.501	< 0.001	78.2%	64.2%	42.4%
Low burden<=22	29	102	131
High burden> 23	101	51	152	55.832	< 0.001	75.9%	67.9%	43.8%
Low burden<=23	32	108	140
High burden> 24	96	48	144	51.09	< 0.001	72.2%	69.8%	42.0%
Low burden<=24	37	111	148
High burden> 25	94	45	139	52.136	< 0.001	70.7%	71.7%	42.4%
Low burden<=25	39	114	153

ISSN: 1471-2288