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Table 1 Baseline characteristics

From: Lactate is associated with mortality in very old intensive care patients suffering from COVID-19: results from an international observational study of 2860 patients

Variables Baseline lactate ≥ 2 mmol/L Baseline lactate < 2 mmol/L p value
n = 920 (32%) n = 1940 (68%)
Male gender [n] (%) 678 (74%) 1356 (70%) 0.033
Age [years] (IQR) 72–79 (76) 72–78 (75) 0.007
Age 70–79 [n] (%) 715 (78%) 1554 (80%) 0.15
Age 80–89 [n] (%) 194 (21%) 373 (19%) 0.24
Age > 90 [n] (%) 10 (1%) 12 (1%) 0.18
CFS (IQR) 2–4 (3) 2–4 (3) 0.47
Diabetes [n] (%) 334 (37%) 690 (36%) 0.68
Coronary vascular disease [n] (%) 226 (25%) 441 (23%) 0.26
Chronic renal failure [n] (%) 163 (18%) 331 (17%) 0.65
Arterial hypertension [n] (%) 599 (65%) 1325 (69%) 0.086
Pulmonary disease [n] (%) 200 (22%) 456 (24%) 0.30
Heart failure [n] (%) 164 (18%) 264 (14%) 0.004
Lactate on day 1 [mmol/L] (IQR) 2.3–3.8 (2.8) 1.1–1.7 (1.4) < 0.001
SOFA score (IQR) 4–8 (6) 3–8 (5) < 0.001
Symptoms prior to hospitalization (days) 2 (1–5) 2 (1–5) 0.96
Symptoms prior to ICU-admission (days) 6 (3–9) 7 (3–10) 0.38
  1. CFS clinical frailty scale, SOFA score sequential organ failure Assessment for the first 24 h, IQR interquartile range