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Table 1 Patient characteristics for POD analysis (n = 745)

From: Association between genetic variants of the cholinergic system and postoperative delirium and cognitive dysfunction in elderly patients

Characteristic POD
(n = 155)
(20.8%)
No POD
(n = 590)
(79.2%)
P
n = 745
Age [years] 74 [70; 76] 71 [68; 75]  < 0.001a
Sex    
Female 73 (47.1%) 247 (41.9%) 0.24b
Charlson Comorbidity Index 1.84 ± 1.5 1.33 ± 1.5  < 0.001a
Duration of anesthesia [min] 305 [202; 470] 175 [107; 269]  < 0.001a
  1. Data is shown as median [IQR 25; IQR 75], or as mean ± SD. Categorical data is shown as frequencies (percentages). Differences between patient groups with and without POD were evaluated with Mann–Whitney U test (a) or Chi-Square Test (b), whereas a P ≤ 0.05 was considered as statistically significant
  2. IQR, interquartile range; SD, standard deviation