Table 1.

Sociodemographic and clinical features among the studies

Variables	Articles	Sample	Observation	95% clearance
Age/sex
Average age	89	8909	46.70	42.80-53.06
Men (%)	167	171,659	51.90	50.40-53.20
Women (%)	165	171,024	48.950	47.5-50.41
Presentations
Onset	25	3507	5.51	4.60-6.40
Incubation period (days)	7.1	744	5.30	4.50-5.98
Others (%)
Fever	155	15,921	78.81	76.21-81.2
Chills	27	4432	15.70	12.30-19.7
Fatigue	98	13,680	32.20	28.2-36.50
Myalgia	79	10,722	21.30	18.2-24.80
Malaise	38	2522	37.90	29.4-47.00
Cough	116	12,770	53.90	50.1-57.60
Expectoration	62	8745	24.20	21.1-27.17
Respiration (%)
SOB	82	11,104	17.990	14.7-21.80
Pain in chest	36	3511	8.9100	5.92-12.91
Rhinorrhea	42	6171	6.50	5.6-8.60
GI
Nausea	47	7483	4.70	3.8-5.80
Pain per abdomen	24	3351	3.950	2.93-5.920
Motions	93	12,148	8.950	6.98-10.95
Anorexia	31	3611	13.98	10.4-18.4
Nausea	37	5598	6.97	5.3-9.12
Neurological
Light headedness	22	2351	8.94	6.91-11.9
Headaches	75	12,383	8.97	7.83-10.9
Other diseases
Respiratory	32	785,692	4.0	2.3-6.95
Cancer	47	8732	3.312	1.60-4.2
Diabetes	74	84,262	10.2	7.4-13.9
Kidney	31	81,472	6.8	1.2-6.1
Hypertension	75	9921	19.4	17.3-21.6
Liver	33	79,522	3.3	1.7-6.3
Cardiac	51	82,212	5.9	2.9-12.6
Clinical course and outcomes
Heart injury	11	1485	9.40	3.5-12.8
Kidney injury	15	77,666	3.60	2.2-12.1
Death	86	52,802	5.60	3.2-6.5
Liver injury	11	77,352	7.90	1.6-11.7
Shocks	11	2981	4.30	3.3-6.9
ICU	39	80,489	10.95	1.6-27.6
Ventilator	36	6155	7.10	3.5-10.0

SOB: Shortness of breath, ICU: Intensive care unit, GI: Gastrointestinal