Association between incubation period and clinical characteristics of patients with COVID-19

Area of Science:

• Infectious Diseases
• Epidemiology
• Clinical Medicine

Background:

• Coronavirus disease 2019 (COVID-19) is a global health concern.
• Understanding the clinical characteristics and incubation periods of COVID-19 is crucial for patient management and prognosis.
• Previous studies have explored various aspects of COVID-19, but the direct association between incubation period and disease severity requires further investigation.

Purpose of the Study:

• To investigate associations between clinical characteristics and incubation periods of patients infected with COVID-19.
• To determine if incubation period can serve as a predictor of disease severity and prognosis in COVID-19 patients.

Main Methods:

• Retrospective analysis of complete clinical and epidemiological data from 149 COVID-19 patients.
• Utilized distribution and receiver operator characteristic curve analysis to identify optimal incubation period cut-offs.
• Employed regression and correlation analyses to assess relationships between incubation period and clinical outcomes.

Main Results:

• A 7-day incubation period was identified as an optimal cut-off for differentiating disease severity.
• Patients with shorter incubation periods (≤7 days) exhibited more severe disease, longer hospitalizations, and poorer laboratory and radiological findings.
• Shorter incubation periods were significantly associated with longer times from symptom onset to hospital discharge.

Conclusions:

• The incubation period of COVID-19 is associated with clinical characteristics and disease severity.
• A shorter incubation period may indicate a more severe disease course and a less favorable prognosis.
• Incubation period can be a valuable marker for assessing COVID-19 severity and predicting patient outcomes.