Table 2.

Summary of baseline characteristics and outcomes of the included studies.

Authors	Date (MM/DD)	Study location	Age (years)	Sample size		BMI (kg/m2)		Comorbidities; N(%)					Findings (OR to develop severe COVID-19)
				Total	M/F	Mild-moderate	Severe	Hyper-tension	Respiratory diseases	CVD	DM	Dyslipi-daemia
Wu J et al. [17]	03/27	China	43.12 ± 19.02	280	151/129	23.6 (20.4–26.8)	25.8 (24.0–27.6)	NA	6 (2.14)	57 (20.36)	34 (12.14)		Obesity grade Ia: 1.30 (1.09–1.54; p = 0.003)
Lighter J et al. [18]	04/09	USA	<60	402	NA	30–34	$\ge$35	NA	NA	NA	NA	NA	Obesity grade Ia: 1.8 (1.2–2.7; p < 0.006) Obesity grade IIa: 3.6 (2.5–5.3; p < 0.0001)
Simonnet A et al. [19]	04/09	France	60 (51–70)	124	90/34	27 (25.3–30.8)	31.1 (27.3–37.5)	60 (49)	NA	NA	28 (23)	34 (28)	Obesity grade IIb: 7.36 (1.63–33.14; p = 0.021)

Notes.

CVD: Cardiovascular Disease.

DM: Diabetes Mellitus.

NA: not available/not known/not stated.

^aNormo- and over-weight comparator group.

^bNormoweight comparator group.