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. 2021 Feb 4:znaa168. doi: 10.1093/bjs/znaa168

Table 1.

Patient demographics, duration of organ support, and mean and peak amylase concentrations in survivors and non-survivors

All patients
(n = 234)
Survivors
(n = 147)
Non-survivors
(n = 87)
Age (years)* 59 (51.0–64.3) 56.0 (47.0–63.0) 61.0 (57.0–66.0)
Men 167 (71.4) 101 (60.5) 66 (39.5)
BMI (kg/m2)* 27.7 (24.5–31.4) 27.6 (24.8–32.7) 27.6 (23.9–30.3)
Duration of ICU stay (days)* 14.7 (6.0–31.1) 16.0 (5.6–35.6) 12.1 (6.0–20.0)
Duration of advanced respiratory support days (days)* 13.0 (4.0–25.3) 13.0 (3.0–29.0) 13.0 (6.0–2–.0)
Mean amylase (units/l)* 90.3 (56.2–136.5) 90.0 (56.3–132.9) 90.5 (55.1–139.1)
Mean amylase > ULN (100 units/l) 97 (41.5) 63 (65) 34 (35)
Peak amylase (units/l)* 158 (82.8–274.5) 157 (90.0–273.0) 160 (79.0–330.0)
Peak amylase > 3 × ULN (300 units /l) 52 (22.2) 30 (58) 22 (42)
Peak amylase > 2 × ULN (200 units/l) 94 (40.2) 58 (62) 36 (38)
Peak amylase > ULN (100 units/l) 158 (67.5) 103 (65.2) 55 (34.8)
Peak amylase ≤ ULN (100 units/l) 76 (32.5) 44 (57.9) 32 (42.1)

Values in parentheses are percentages unless indicated otherwise;

*

values are median (i.q.r.).

Mechanical ventilatory support via endotracheal tube. ULN, upper limit of normal.