Zhang et al reported a score for predicting delirium in a critically-ill patient in the intensive care unit (ICU). The authors are from Yijshan Hospital and First Affiliated Hospital of Wannan Medical College in Anhui, China.
Patient selection: critically-ill patient in the ICU
Parameters:
(1) history of hypertension
(2) hypoxemia
(3) use of benzodiazepines
(4) deep sedation
(5) mechanical ventilation
(6) sepsis
Parameters
Findings
Points
history of hypertension
no
0
yes
3
hypoxemia
no
0
yes
2
benzodiazepines
no
0
yes
3
deep sedation
no
0
yes
2
mechanical ventilation
no
0
yes
2
sepsis
no
0
yes
2
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 14
Total Score
Delirium
0 to 4
4.4%
5 to 9
28%
10 to 14
61%
percent with delirium =
= (0.059 * (score)) - 0.089
Performance:
• The area under the ROC curve is 0.86 in the derivation and 0.74 in the validation cohorts.
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