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. 2021 Sep 17;10(10):1344–1351. doi: 10.1530/EC-21-0411

Table 1.

Demographic data, outcome measures and biochemical indexes. Data are expressed as mean ± s.d. (minimum-maximum range) or as number and percentage.

Whole cohort (n = 117) Hyponatremic (group A, n = 31) Normonatremic (group B, n = 78) Hypernatremic (group C, n = 8) P value
Age (years) 64 ± 13 (25–90) 61 ± 12 (25–83) 63 ± 13(36–90) 71 ± 11 (53–88) 0.190
Gender (Male) 81 (69) 23 (28) 51 (63) 7 (9) 0.341
ICU admission 18 (15) 7 (39) 10 (56) 1 (5) 0.432
Need for mechanical ventilation in ICU 32 (27) 10 (31) 21 (66) 1 (3) 0.530
Length of hospital stay (days) 33 ± 22 (4–120) 29 ± 17 (7–82) 27 ± 22 (4–120) 27 ± 18 (11–66) 0.391
Death 20 (17) 4 (20) 15 (75) 1 (5) 0.686
IL-6, maximum (pg/mL) 404.9 ± 776.7 (7.4–4601.0) 325.1 ± 450.6 (9.8–2140.0) 342.7 ± 623.5 (3.5–3207.0) 1001.2 ± 1784.8 (61.1–4601.0) 0.385
CRP, admission (mg/dL) 8.6 ± 8.0 (0.6–41.5) 10.5 ± 10.0 (1.0–41.5) 7.0 ± 5.7 (0.3–27.3) 3.5 ± 2.4 (0.3–6.2) 0.029 (A vs C)
Lac, admission (mmol/mol) 0.9 ± 0.8 (0.0–3.6) 1.0 ± 0.7 (0.0–2.5) 0.7 ± 0.8 (0.0–3.6) 0.8 ± 0.8 (0.0–2.0) 0.107

CRP, C reactive protein; ICU, intensive care unit; IL-6, interleukin 6; Lac, serum lactate levels.

Bold indicates statistical significance, P = 0.029.