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To determine risk factors associated with their length of hospital stay in admitted patients with psychotropic
Demographics, data of physical and laboratory, and hospital stay were analyzed using a linear regression and a
recursive partitioning analysis to determine significant risk factors for prolonged hospitalization.
In 140 patients (mean age, 35 yr; 78% women) with psychotropic drug overdose, the median hospital stay was
2.9 days (range, 1-17) and all were discharged alive. Significant factors for prolonged hospital stay were older age
(p<0.0001), increased heart rate (p = 0.029), lower blood pressure (p<0.0001), lower Glasgow coma scale (p = 0.015), and
increased blood leukocyte (p = 0.005). The recursive partitioning showed that blood leukocyte of 12,900/mm3 was the
cutoff of the most important variable for hospital stay of 3 days or greater.
Elevated blood leukocyte is the most important predictor for prolonged hospitalization in admitted patients
with psychotropic drug overdose.