Risk Factors for Acute Delirium in Critically Ill Adult Patients: A Systematic Review

Table 1

Keyword categories.

	Keywords
Concept 1: factors	(i) Electrolyte imbalance
	(ii) Fever
	(iii) Urinary tract infection
	(iv) Sepsis
	(v) Pneumonia
	(vi) Anaesthetic
	(vii) Postoperative complication*
	(viii) Hypoxia
	(ix) Anoxia
	(x) Dementia
	(xi) Age
	(xii) Older*
	(xiii) Head injury
	(xiv) Subdural hematoma
Concept 2: acute delirium	(i) Delirium
	(ii) Confusion*
	(iii) Agitation*
	(iv) Attention*
	(v) Disorientation*
	(vi) Stupor
	(vii) Hallucination
	(viii) Incoherence*
	(ix) ICU psychosis
	(x) Acute confusional state
	(xi) ICU Syndrome
Concept 3: critically ill patients	(i) Critical care
	(ii) Intensive care unit