COVID-19 Research Paper Volume 12, Issue 12 pp 11287—11295

Serum calcium as a biomarker of clinical severity and prognosis in patients with coronavirus disease 2019

Figure 4. The survival curves at 28 days after admission of the three groups: Group A (serum calcium values ≤2.0 mmol/L, n =43), Group B (serum calcium values 2.0-2.2 mmol/L, n =137), and Group C (serum calcium values >2.2 mmol/L, n =61) (P <0.001).