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


METHODS
A factor analysis of the DRS-R-98 was performed among 161 medical-surgical 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 > or = 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.


CONCLUSIONS
The DRS-R-98 has good construct validity in this Latino population.
Franco
José G
JG
Research Group in Liaison Psychiatry, Clínica Universitaria Bolivariana, Faculty of Medicine, Universidad Pontificia Bolivariana, Medellín, Colombia. josefranco@une.net.co
Trzepacz
Paula T
PT
Mejía
Mario A
MA
Ochoa
Sol B
SB
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003105:Colombia; D003431:Cross-Cultural Comparison; D003693:Delirium / Q000175:diagnosis* / Q000523:psychology; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests / Q000706:statistics & numerical data*; D011594:Psychometrics / Q000706:statistics & numerical data; D015203:Reproducibility of Results; D014175:Translating