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Table 6 Stratified analysis for patients with low vs. high AGIUS scores

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

  Total (n = 116) AGIUS score ≤ 2 (n = 59) AGIUS > 2 (n = 57) t/Z/χ2 p value
Cumulative fluid balance within 1 week (L) 5.0 [3.4–6.7] 4.7 [2.6–5.8] 5.6 [4.0–7.3] 0.13b 0.008
Serum lactate at onset (mmol/L) 2.4 ± 1.0 2.5 ± 0.9 2.3 ± 1.0 0.13a 0.36
Vasopressor support, n (%) 59 (50.9) 25 (42.4) 34 (59.7) 3.46c 0.06
Norepinephrine dose (μg/kg/min) 0.06 [0.03–0.15] 0.03 [0.03, 0.04] 0.12 [0.07–0.22] 4.92b < 0.001
Mechanical ventilation, n (%) 62 (53.4) 26 (44.1) 36 (63.2) 4.25c 0.04
Duration of mechanical ventilation (days) 3.0 [0–12.8] 1.0 [0–7.0] 9.0 [0–14.0] 12.18b 0.001
Serum creatinine (μmol/L) 94.0 [61.5–131.8] 70.0 [41.0–91.0] 128.0 [94.0–185.5] 13.25b < 0.001
Renal replacement therapy, n (%) 34 (29.3) 9 (15.3) 25 (43.9) 11.45c 0.001
Feeding intolerance, n (%) 41 (35.3) 6 (10.2) 35 (61.4) 33.30c < 0.001
Intra-abdominal hypertension, n (%) 78 (67.2) 35 (59.3) 43 (75.4) 3.42c 0.06
GIF score 2.0 [1.0–3.0] 2.0 [1.0–2.0] 3.0 [2.0–3.0] 4.18b < 0.001
SOFA score 12.0 [10.0–14.0] 10.0 [8.0–12.0] 14.0 [12.5–15.5] 2.44b < 0.001
Length of ICU stay (days) 9.5 [6.0–18.0] 8.0 [5.0–15.0] 14.0 [6.5–20.0] 2.45b 0.01
28-day mortality, n (%) 42 (36.2) 7 (11.9) 35 (61.4) 30.80c < 0.001
ICU mortality, n (%) 37 (31.9) 5 (8.5) 32 (56.1) 30.32c < 0.001
Hospital mortality, n (%) 41 (35.3) 7 (11.9) 34 (59.7) 28.97c < 0.001
  1. Variables including vasopressor support, mechanical ventilation, and renal replacement therapy were reported as the number of patients during stay in the ICU. Variables including serum creatinine, norepinephrine dose, and duration of mechanical ventilation were reported as the average values recorded during stay in the ICU. Variables including intra-abdominal hypertension and feeding intolerance were reported as the number of patients during the first week after ICU admission. SOFA score was reported as the average of the first week after ICU admission. GIF score were reported as the highest values observed during the first week after ICU admission
  2. p value represents difference between low AGIUS patients and high AGIUS patients
  3. Continuous data are expressed as median [Q1; Q3] or mean ± standard
  4. aStudent’s t test
  5. bMann-Whitney U test
  6. cχ2 test or Fisher’s exact test