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

Table 3 Concurrent and criterion validity: correlation between intensive care psychological assessment tool (IPAT) scores, concurrent anxiety and depression measures, and previously assessed delirium

	Validating anxiety scale	Validating depression scale	Validating delirium test (ever/never)	Likely delirium
IPAT total score	0.7**	0.62**	0.34**	0.37**
IPAT anxiety score	0.69**
IPAT depression score		0.58**
IPAT delirious symptoms score			0.28**	0.29**

Validating anxiety scale, state trait anxiety inventor short form [15], usually administered day 1; validating depression scale, patient health questionnaire-2 [16], day 1. Validating delirium test, confusion assessment method for the intensive care unit (CAM-ICU) [22] (tested earlier in admission); IPAT anxiety, tense + panic items; IPAT depression, sad + hopeless; IPAT delirious symptoms, disorientated + hallucination + delusion. Likely delirium includes other indications of delirium from notes, with CAM-ICU results.**P <0.01.

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