Research Article

Early Prediction of Disease Progression in Patients with Severe COVID-19 Using C-Reactive Protein to Albumin Ratio

Table 1

Baseline characteristics of patients with stable and progressive COVID-19.

VariablesTotal ()Disease progression value
Stable ()Progressive ()

Age, median (IQR), years62.0 (54.0-69.0)61.0 (53.0-68.0)67.5 (57.0-73.8)0.001
Male, [%]248 (53.3%)208 (50.9%)40 (71.4%)0.004
Comorbidities, [%]
Hypertension223 (48.0%)184 (45.0%)39 (69.7%)0.001
Diabetes102 (21.9%)89 (21.8%)13 (23.2%)0.805
Coronary heart disease63 (13.5%)49 (12.0%)14 (25.0%)0.008
Chronic obstructive lung disease37 (8.0%)27 (6.6%)10 (17.9%)0.008
Malignancy30 (6.5%)26 (6.4%)4 (7.1%)0.822
Vital signs
Respiration rate, median (IQR),breaths per minute21.0 (20.0-25.0)21.0 (20.0-25.0)23.5 (22.0-29.5)<0.001
SpO2, median (IQR), %92.0 (90.0-93.0)92.0 (90.0-93.0)85.0 (82.3-87.8)<0.001
Pulse, median (IQR), beats per minute88.0 (78.5-101.0)88.0 (78.0-100.5)92.5 (80.0-104.8)0.140
MAP, median (IQR), mm Hg96.7 (90.0-106.2)96.7 (90.0-106.0)96.2 (91.0-106.6)0.916
Temperature, median (IQR), °C36.8 (36.4-37.3)36.8 (36.3-37.3)37.0 (36.5-37.8)0.010
Disease severity scores, median (IQR)
SOFA score2.0 (2.0-3.0)2.0 (2.0-3.0)4.0 (3.0-4.0)<0.001
CURB-65 score1.0 (0.0-1.0)1.0 (0.0-1.0)1.0 (1.0-2.0)<0.001
Clinical outcomes
Invasive mechanical ventilation, [%]43 (9.2%)0 (0.0%)43 (76.8%)<0.001
ICU admission, [%]40 (8.6%)0 (0.0%)40 (71.4%)<0.001
Length of hospital stay of survivors, median (IQR), days31.0 (22.0-40.0)31.0 (22.0-38.0)51.0 (45.0-55.0)<0.001
Hospital mortality, [%]34 (7.3%)0 (0.0%)34 (60.7%)<0.001

Data are presented as medians (IQR) and (%). values were calculated by Student -test, Mann–Whitney test, Chi-square test, or Fisher’s exact test, as appropriate. values indicate differences between the stable and progressive patients. Abbreviations: IQR: interquartile range; SpO2: percutaneous oxygen saturation; MAP: mean arterial pressure; SOFA score: Sequential Organ Failure Assessment score.