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Table 1 Patients’ demographic and clinical characteristics

From: A Tunisian version of the confusion assessment method for the intensive care unit (CAM-ICU): translation and validation

VariablesTotal sample (n = 137)Deliriumc group (n = 46)Non-deliriumc group (n = 91)p
Agea (Year)60 [49–68]66 [47.5–77.0]59 [52–68]0.13
Sexb (Male)102 (74.5)38 (82.6)64 (70.3)0.12
Simplified Acute Physiology Score IIa27 [22.0–33.5]33.[26.2–38.2]24 [20–32]0.00
Charlson indexa3.3 [0–10]4.0 [2–5]3.0 [2–4]0.49
Invasive mechanical ventilationb49 (35.7)27 (58.7)22 (24.2)0.00
Addictive behaviorsbSmoking70 (51.1)30 (65.2)40 (44.0)0.02
Alcohol abuse11 (8.0)7 (15.2)4 (4.4)0.06
Underlying diseasesbChronic obstructive pulmonary disease74 (54.4)28 (60.9)46 (50.5)0.25
Hypertension38 (27.7)12 (26.1)26 (28.6)0.76
Diabetes mellitus47 (34.3)11 (23.9)36 (39.6)0.07
Cardiovascular disease16 (11.7)4 (8.7)12 (13.2)0.44
Chronic renal failure6 (4.4)1 (2.2)5 (5.5)0.34
Dysthyroidism3 (2.2)1 (2.2)2 (2.2)0.99
Reasons for admissionbRespiratory disorders103 (75.2)34 (73.9)69 (75.8)0.80
Circulatory disorders10 (7.3)2 (4.3)8 (8.8)0.55
Neurological disorders8 (5.8)3 (6.5)5 (5.5)0.81
Metabolic disorders9 (6.6)5 (10.9)4 (4.4)0.28
Toxic disorders7 (5.1)5 (5.5)2 (4.3)0.77
  1. Data were: aMedian [interquartile range]; bNumber(%). Probability (p): comparison between the 2 groups (Wilcoxon-Mann-Whitney test for continuous data and chi-square test for categorical data)
  2. cDelirium as diagnosed by the diagnostic and statistical manual of mental Disorders (5th Edition) criteria