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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