Factor analysis of the Colombian translation of the Delirium Rating Scale (DRS), revised-98

José G. Franco, Paula T. Trzepacz, Mario A. Mejía, Sol B. Ochoa

Research output: Contribution to journalArticle in an indexed scientific journalpeer-review

53 Scopus citations


Background: The phenomenology of delirium needs further elucidation using validated tools. Objective: The authors sought to derive valid factors from the Delirium Rating Scale (DRS), Revised -98. Method: A factor analysis of the DRS-R-98 was performed among 161 medicalsurgical patients. Results: Scores ranged from 0 to 7 in 120 patients (74.53%; no delirium), 8 to 13 in 19 (11.80%; subclinical/prodromal delirium), and ≥14 in 22 (13.66%; delirium). The DSM-IV-TR delirium incidence was 19.87%. The first two rotated factors explained 63.37% of the variance and may correspond to Cognition and Psychosis/Agitation factors. The dimension of motor retardation loaded with cognitive items. Motor agitation and retardation clustered with inattention, which is the cardinal symptom of delirium. Conclusion: The DRS-R-98 has good construct validity in this Latino population.

Original languageEnglish
Pages (from-to)255-262
Number of pages8
Issue number3
StatePublished - 2009
Externally publishedYes


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