TABLE 2

Demographic characteristics and rates of comorbidities, intensive care unit (ICU) admission, major complications and death in the studied populations

First author [ref.]	Patients n	Mean age years	Male %	Comorbidity %	ICU %	Complications %						Death %
First author [ref.]	Patients n	Mean age years	Male %	Comorbidity %	ICU %	DIC	Shock	ARDS	Kidney	Liver	Heart	Death %
Chen [14]	274	62	55/73^#	39/63^#		1/17^#	17	52/100^#	1/25^#	2/9^#	17/77^#,¶; 3/49^#,+	14.1
Guan [3]	1099	47	58.10	23.70	5	0.10	1.1	3.40	0.50			1.4
Han [15]	94		51.00
Huang [1]	41	49	73.00	32.00	31.70		7	29	7		12	15
Tang [16]	449	65.1	60.00	60.60		21.6^§						29.80
Tang [17]	183	54.1	53.50	41.00								11.50
Wan [26]	135	47	53.3	31.9			0.7	15.6	3.7		7.4	0.7
Wang [18]	138	56	54.30	46.40	26.00		8.7	19.60	3.60		7.20
Wang [19]	339	71	49.00	60.70			2.4	21	8.10	28.70	21^¶/17.4⁺	19.20
Wu [6]	201	51	63.70	32.80	26.40			41.80				21.90
Li [25]	25^ƒ	73	40	100	93							100
Yin [20]	449/104^##	65/58^##	60/69^##	60.6/61.5^##								29.8/15.4^##
Zhang [21]	95	49	55.80									26.3^¶¶
Zhang [24]	140	57	50.70	64.30	51.50
Zhou [22]	191	56	62	48.00	26		20	31	15		17^¶/23⁺	28.20
Zhang [23]	7	59	57.10	42.90	100							71.40

DIC: disseminated intravascular coagulation; ARDS: acute respiratory distress syndrome. ^#: recovered/non-recovered; ^¶: acute cardiac injury; ⁺: heart failure; ^§: sepsis-induced coagulopathy [27]; ^ƒ: deceased COVID-19; ^##: deceased COVID-19/non-COVID-19; ^¶¶: composite end-point.