Detecting acute distress and risk of future psychological morbidity in critically ill patients: validation of the intensive care psychological assessment tool

Table 4 Predictive validity: correlation of intensive care psychological assessment tool (IPAT) and other scores with outcomes measured at 3 months

	PTSD	Depression	Anxiety
	at 3 months	at 3 months	at 3 months
IPAT1 total, (day1, n =166)	0.4**	0.34**	0.25*
IPAT2 total (day 2, n =56)	0.64**	0.55**	0.45*
Validating anxiety scale (STAI) [15]	0.4**	0.29**	0.33**
Validating depression scale (PHQ-2) [16]	0.33**	0.28**	0.29**
Validating delirium test (CAM-ICU) [22]	0	0.17	0.12

*P <0.05; ** P <0.01. PTSD, post-traumatic stress diagnostic scale (PDS) [18]; Depression at 3 m, Centre for Epidemiological Studies depression scale (CES-D) [19]; Anxiety, short form of the state trait anxiety inventory (STAI) [20]; PHQ-2: patient health questionnaire-2 [16]; CAM-ICU, confusion assessment method in ICU [22].

ISSN: 1364-8535