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Table 2 Glutamine status of the study population

From: Prevalence of glutamine deficiency in ICU patients: a cross-sectional analytical study

Group Median plasma GLN level (μmol/L)
medians [25th – 75th percentiles]
P-value Deficient: <420 μmol/L Normal: 420 – 930 μmol/L Supra-normal: >930 μmol/L
n (%)
ICU patients (n = 60) 497 [387 – 644]   23 (38.3) 33 (55.0) 4 (6.70)
ICU men (n = 35) 558 [395 – 697] 0.116 12 (34.3) 19 (54.3) 4 (11.4)
ICU women (n = 25) 466 [380 – 543]   11 (44.0) 14 (56.0)
Admission categories:
 Medical (n = 42) 475 [372 – 627] 0.325** 18 (42.8) 23 (54.8) 1 (2.40)
 Surgical (n = 16) 515 [468 – 782]   4 (25.0) 9 (56.2) 3 (18.8)
 Trauma (n = 2) 432 [381 – 432]   1 (50.0) 1 (50.0)
Specific conditions:b
 HIV+ (n = 8) 562 [375 – 1062]   2 (25.0) 5 (62.5) 1 (12.5)
 Liver failure (n = 4) 497 [389 – 643]   2 (50.0) 1 (25.0) 1 (25.0)
 Renal failurea (n = 7) 575 [388 – 714]   3 (42.9) 4 (57.1)
 MOF (n = 4) 355 [310 – 689]   3 (75.0) 1 (25.0)
 Sepsis (n = 4) 355 [310 – 689]   3 (75.0) 1 (25.0)
 DM (n = 19) 380 [273 – 500]   10 (52.6) 9 (47.4)
  1. Non-parametric data reported as median [25th–75thpercentile]
  2. DM diabetes mellitus, GLN glutamine, HIV+ human immunodeficiency virus seroreactive, ICU intensive care unit, MOF multiple-organ failure, n number/ frequency
  3. aPatients not dialysed; bMedian plasma glutamine levels and distribution for certain conditions, that are expected to alter glutamine status
  4. **p-value 0.042 when excluding trauma patients and comparing the medical and surgical patients