Table 2.

Demographic information and baseline characteristics of patients in MEXCOVID study

	Age (years)	Sex	Occupation	Allergic history	Smoking history (pack years)	Clinical classification	Days of admission from symptom onset (days)	Days of haMSCs-Exos nebulization from symptom onset (days)	Principal symptoms	Comorbidity
Patient 1	34	Male	Unemployed	Denied	400	Severe	15	32	Fever, shortness of breath	Hypertension
Patient 2	51	Female	Self-employed	Denied	None	Severe	15	59	Fever, sore throat, shortness of breath, cough, expectoration, malaise	None
Patient 3	43	Male	Employee	Denied	None	Severe	30	34	Fever, cough	Diabetes, Hypertension
Patient 4	60	Male	Employee	Denied	800	Severe	40	85	Fever, cough, malaise, shortness of breath	Chronic obstructive pulmonary disease, hypertension
Patient 5	57	Female	Unemployed	Denied	None	Severe	11	69	Fever, headache, diarrhea	Hyperthyroidism
Patient 6	75	Male	Unemployed	Denied	None	Severe	44	54	Fever, cough, shortness of breath, malaise	None
Patient 7	70	Female	Unemployed	Penicillin	None	Severe	38	47	Fever, cough, shortness of breath	Diabetes