Associations of symptom combinations with in-hospital mortality of coronavirus disease-2019 patients using South Korean National data
Fig 2
Multivariate cox regression of hazard ratios of in-hospital mortality in COVID-19 patients.
(a) Model 1: HR of symptom presence adjusting for age group, sex, obesity, heart rate, and comorbidities; (b) Model 2: HR of the number of symptoms adjusting for age group, sex, obesity, heart rate, and comorbidities; (c) Model 3: HR of each significant symptom adjusting for age group, sex, obesity, heart rate, and comorbidities; (d) Model 4: HR of each factor score adjusting for age group, sex, obesity, heart rate, and comorbidities. Abbreviations: REF = reference; HR = heart rate; SD = standard deviation; BMI = body mass index; COPD = chronic obstructive pulmonary disease.