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Table 4 Characteristics of non-AGI and AGI patients

From: Predictive value of transabdominal intestinal sonography in critically ill patients: a prospective observational study

  Total (n = 116) Non-AGI (n = 80) AGI (n = 36) t/Z/χ p value
Age (year) 53.4 ± 20.6 53.9 ± 21.6 52.2 ± 18.5 0.41a 0.68
Male/female, n (%) 62/54 42/38 20/16 0.09c 0.76
BMI (kg/m2) 22.3 ± 3.9 22.1 ± 3.9 22.5 ± 4.0 0.49a 0.63
Cause of ICU admission
 Major trauma, n (%) 59 (50.9) 43 (53.8) 16 (44.4) 0.86c 0.35
 Complications after surgery, n (%) 45 (38.8) 30 (37.5) 15 (41.7) 0.18c 0.67
 Others, n (%) 12 (10.3) 7 (8.8) 5 (13.9) 0.71c 0.40
Serum lactate at onset (mmol/L) 2.4 ± 1.0 2.3 ± 1.0 2.5 ± 0.9 1.21a 0.23
APACHE II on ICU admission 15.0 [11.0–17.0] 15.0 [11.0–17.0] 14.5 [13.0–18.0] 1.83b 0.78
SOFA score on ICU admission 10.0 [8.0–13.0] 9.5 [8.0–13.0] 10.0 [9.3–13.0] 5.14b 0.48
Mechanical ventilation, n (%) 62 (53.5) 36 (45.0) 26 (72.2) 7.40c 0.007
PaO2/FiO2 (mmHg) 206.5 ± 21.5 209.8 ± 20.7 199.1 ± 21.6 2.54a 0.01
Platelet count (× 109/L) 133.7 ± 19.7 137.11 ± 19.7 126.11 ± 17.7 2.87a 0.005
Total bilirubin (mmol/L) 70.1 ± 32.8 54.1 ± 22.7 105.8 ± 22.0 11.46a < 0.001
MAP (mmHg) 75.0 ± 6.2 75.2 ± 5.6 74.3 ± 7.4 0.76a 0.45
Vasopressor support, n (%) 59 (50.9) 35 (43.8) 24 (66.7) 5.22c 0.02
 Norepinephrine, n (%) 59 (50.9) 35 (43.8) 24 (66.7) 5.22c 0.02
 Epinephrine, n (%) 7 (6.0) 2 (2.5) 5 (13.9) 5.68c 0.02
 Dobutamine, n (%) 3 (2.6) 0 (0) 3 (8.3) 6.84c 0.009
 Norepinephrine dose (μg/kg/min) 0.06 [0.03–0.15] 0.04 [0.03–0.06] 0.15 [0.09–0.24] 5.22b < 0.001
 At least two drugs, n (%) 9 (7.8) 2 (2.5) 7 (19.4) 9.96c 0.002
Serum creatinine (μmol/L) 94.0 [61.5–131.8] 80.0 [50.5–107.3] 162.0 [108.5–200.8] 18.64b < 0.001
Renal replacement therapy, n (%) 34 (29.3) 19 (23.8) 15 (41.7) 3.85c 0.05
Intra-abdominal pressure (mmHg) 10.6 ± 6.3 8.4 ± 5.5 15.5 ± 5.3 6.57a < 0.001
Abdominal perfusion pressure (mmHg) 64.3 ± 8.3 66.9 ± 7.8 58.8 ± 6.6 5.41a < 0.001
Intra-abdominal hypertension, n (%) 78 (67.2) 43 (53.8) 35 (97.2) 21.30c < 0.001
Feeding intolerance, n (%) 41 (35.3) 5 (6.3) 36 (100) 95.49c < 0.001
Duration of mechanical ventilation (days) 3.0 [0.0–12.8] 1.0 [0–7.0] 12.0 [0–14.8] 4.48b < 0.001
AGIUS score 2.0 [1.0–3.0] 2.0 [1.0–3.0] 4.0 [3.0–4.0] 5.85b < 0.001
GUTS score 3.0 [2.0–3.0] 3.0 [2.0–3.0] 3.0 [3.0–3.0] 4.60b < 0.001
Length of ICU stay (days) 9.5 [6.0–18.0] 8.0 [5.0–14.5] 17.0 [8.8–21.0] 3.38b 0.001
Length of hospital stay (days) 17.0 [11.0–23] 14.0 [10.0–20.8] 21.0 [19.0–25.8] 3.75b < 0.001
28-day mortality, n (%) 42 (36.2) 14 (17.5) 28 (77.8) 39.06c < 0.001
ICU mortality, n (%) 37 (31.9) 12 (15.0) 25 (69.4) 38.21c < 0.001
Hospital mortality, n (%) 41 (35.3) 14 (17.5) 27 (75) 35.92c < 0.001
  1. Variables including PaO2/FiO2, platelet count, total bilirubin, norepinephrine dose, serum creatinine, and duration of mechanical ventilation were reported as the average values during stay in the ICU. Variables including mechanical ventilation, vasopressor support, and renal replacement therapy were reported as the number of patients receiving these treatments during stay in the ICU. Variables including MAP, intra-abdominal pressure, and abdominal perfusion pressure were reported as the average values of the first week after ICU admission. Variables including AGIUS score and GUTS score were reported as the highest values recorded during the first week after ICU admission. Variables including intra-abdominal hypertension and feeding intolerance were reported as the number of patients of the first week after ICU admission
  2. p value represents the difference between non-AGI patients and AGI patients
  3. Continuous data are expressed as median [Q1; Q3] or mean ± standard
  4. BMI body mass index
  5. aStudent’s t test
  6. bMann-Whitney Utest
  7. cχ2 test or Fisher’s exact test
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Critical Care

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