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Table 1 Characteristics of non-survivors and survivors

From: Age moderates the relationships between obesity, glucose variability, and intensive care unit mortality: a retrospective cohort study

  All
(N = 1062)
Survivors
(n = 751)
Non-survivors
(n = 311)
p value Effect size
Age 63.08 (14.28) 61.62 (13.74) 66.61 (14.96)  < 0.001*** d = 0.35
Sex (female) 424 (39.92%) 309 (41.15%) 115 (36.98%) 0.207 Φ = 0.04
BMI (kg/m2) 22.92 (4.23) 23.18 (4.11) 22.29 (4.44) 0.002** d = 0.21
 Underweight (BMI < 18.5) 146 (13.75%) 83 (11.05%) 63 (20.26%)  < 0.001*** Φ = 0.14
 Normal weight (BMI 18.5–23.99) 520 (48.96%) 364 (48.47%) 156 (50.16%)
 Overweight (BMI 24–27.99) 282 (26.55%) 220 (29.29%) 62 (19.94%)
 Obese (BMI ≥ 28) 114 (10.73%) 84 (11.19%) 30 (9.65%)
Reason for ICU admission      
 Gastrointestinal causes 344 (32.39%) 270 (35.95%) 74 (23.79%)  < 0.001*** Φ = 0.23
 Cardiovascular causes 246 (23.16%) 199 (26.50%) 47 (15.11%)
 Neurological causes 195 (18.36%) 128 (17.04%) 67 (21.54%)
 Respiratory causes 111 (10.45%) 56 (7.46%) 55 (17.68%)
 Other causes 166 (15.63%) 98 (13.05%) 68 (21.86%)
APACHE II (first 24 h) 17.46 (8.24) 15.51 (7.08) 22.17 (8.93)  < 0.001*** d = 0.87
ICU stay length (days) 13.18 (28.54) 8.82 (14.88) 23.72 (45.76)  < 0.001*** d = 0.54
Triglyceride (mmol/L) 1.58 (2.98) 1.63 (3.41) 1.45 (1.49) 0.377 d = 0.06
Total cholesterol (mmol/L) 3.78 (1.53) 3.85 (1.48) 3.61 (1.62) 0.020* d = 0.16
HDL (mmol/L) 0.87 (0.41) 0.88 (0.39) 0.83 (0.45) 0.074 d = 0.12
LDL (mmol/L) 2.10 (1.04) 2.15 (0.99) 1.97 (1.15) 0.009** d = 0.18
Mean glucose (mmol/L) 10.16 (2.00) 10.19 (1.98) 10.09 (2.05) 0.471 d = 0.05
Blood glucose variability (standard deviation; mmol/L) 2.60 (1.18) 2.54 (1.17) 2.74 (1.19) 0.010* d = 0.17
Hypoglycemia 142 (13.37%) 68 (9.05%) 74 (23.79%)  < 0.001*** Φ = 0.20
Diabetes mellitus 396 (37.29%) 293 (39.01%) 103 (33.12%) 0.071 Φ = 0.06
Hypertension 513 (48.31%) 355 (47.27%) 158 (50.80%) 0.303 Φ = 0.03
Hypertriglyceridemia 256 (24.11%) 190 (25.30%) 66 (21.22%) 0.256 Φ = 0.04
Hypercholesterolemia 148 (13.94%) 107 (14.25%) 41 (13.18%) 0.786 Φ = 0.01
Mechanical ventilation 772 (72.69%) 500 (66.58%) 272 (87.46%)  < 0.001*** Φ = 0.21
Dialysis 12 (1.13%) 10 (1.33%) 2 (0.64%) 0.333 Φ = 0.03
CRRT 193 (18.17%) 70 (9.32%) 123 (39.35%)  < 0.001*** Φ = 0.36
Corticosteroids 331 (31.17%) 171 (22.77%) 160 (51.45%)  < 0.001*** Φ = 0.28
Vasopressors 451 (42.47%) 234 (31.16%) 217 (69.77%)  < 0.001*** Φ = 0.36
  1. Data presented as mean (standard deviation) or n (%). Effect sizes are Cohen’s d (for independent-sample t tests) or Φ (for Chi-square tests)
  2. APACHE II Acute Physiology and Chronic Health Evaluation II; BMI body mass index; CRRT continuous renal replacement therapy; HDL high density lipoprotein; ICU intensive care unit; LDL low density lipoprotein
  3. *p < 0.05, ** p < 0.01, *** p < 0.001