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Table 4 Risk markers by sex and age-group

From: Lethality risk markers by sex and age-group for COVID-19 in Mexico: a cross-sectional study based on machine learning approach

Patients stratified by age

Risk markers for males

Risk markers for females

In common

20–29*

Dyspnea, polypnea, days elapsed, chest pain, chills, hypertension, Smoking

30–39

Chest pain, CKD, obesity

Diabetes, odynophagia, diarrhea, chills

Dyspnea, polypnea, hypertension

40–49

Chills

Hypertension, vomiting

Dyspnea, days elapsed, polypnea, diabetes, CKD

50–59

Chest pain, odynophagia, chills

Diabetes, general discomfort, anosmia

Dyspnea, polypnea, use of antipyretics

60–69

Chest pain, myalgia, CKD, use of antipyretics

Diabetes, cough, arthralgia

Dyspnea, hypertension, vomiting

 ≥ 70

Chest pain, myalgia, smoking

Hypertension, chills, CKD, arthralgia

Dyspnea, polypnea, use of antipyretics

  1. COPD chronic obstructive pulmonary disease, CKD chronic kidney disease. Days elapsed: elapsed days from symptom onset until medical care. * The age group 20–29 years was discarded in the analysis because only one death was observed in this group and the model could not be trained to identify markers for comparison with males