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Table 1 Patient demographic characteristics at baseline

From: Effect of an ICU diary on psychiatric disorders, quality of life, and sleep quality among adult cardiac surgical ICU survivors: a randomized controlled trial

VariablesIntervention (n = 46)Control (n = 49)T/휒2/ZP
Gender
 Male29 (63%)30 (61.2%)0.030.86
 Female17 (37%)19 (38.8%)  
Age (years), mean ± SD53.04 ± 9.5355.61 ± 10.61− 1.240.22a
Height (cm), mean ± SD163.91 ± 8.29162 ± 8.121.140.26a
Weight (kg), mean ± SD63.57 ± 11.6860.47 ± 11.131.320.19a
Diagnose
 VHD36 (78.3%)34 (69.4%)0.960.33
 CAD10 (21.7%)15 (30.6%)  
NYHA
 I2 (4.3%)0 (0%)− 1.10.27b
 II16 (34.8%)14 (28.6%)  
 III26 (56.5%)33 (67.3%)  
 IV2 (4.3%)2 (4.1%)  
Educational level
 None2 (4.3%)4 (8.2%)− 0.50.62b
 Primary19 (41.3%)18 (36.7%)  
 Junior14 (30.4%)19 (38.8%)  
 Senior/secondary school6 (13%)5 (10.2%)  
 College/university5 (10.9%)3 (6.1%)  
Marital status
 Married45 (97.8%)46 (93.9%) 0.62c
 Unmarried1 (2.2%)3 (6.1%)  
Occupation
 Worker/enterprise/institutional workers16 (34.8%)9 (18.4%)3.350.34
 Farmer9 (19.6%)13 (26.5%)  
 Retiree7 (15.2%)9 (18.4%)  
 Others14 (30.4%)18 (36.7%)  
Payment
 Without insurance5 (10.9%)4 (8.2%) 0.74c
 Insurance41 (89.1%)45 (91.8%)  
Length of ICU stay (h), mean ± SD63.72 ± 33.0866.33 ± 33.70− 0.380.71a
Duration of use of corticosteroid (days), median2 (0.3)2 (0.2)− 0.970.32b
Duration of use of sedatives (days), median1 (0.2)0 (0.1)− 1.10.27b
Duration of use of analgesics (days), median0 (0.2)0 (0.1)− 1.650.1b
Duration of MV (h), median20.42 (16.63, 43.63)20 (14.63, 42.33)− 0.710.48b
  1. Statistical analysis was performed using the chi-square test. NYHA Classification of New York Heart Association Heart Function, VHD valvular heart disease, CAD coronary atherosclerotic heart disease, MV mechanical ventilation
  2. aIndependent t test
  3. bMann-Whitney U test
  4. cFisher’s exact test