Table 2.

Clinical characteristics of the 663 COVID-19 patients

	Total (n = 663)	Disease severity				Improvement during follow-up			In-hospital death
		Mild to moderate	Severe	Critical	p value	Yes	No	p value	Survival	Non-survival	p value
Respiratory symptoms
Dry cough	410 (61.8)	155 (61.0)	202 (64.1)	53 (56.4)	0.376	150 (59.8)	260 (63.1)	0.390	394 (61.8)	16 (64.0)	0.821
Expectoration	166 (25.0)	52 (20.5)	89 (28.3)	25 (26.6)	0.096	42 (16.7)	124 (30.1)	<0.001	157 (24.6)	9 (36.0)	0.197
Dyspnoea	161 (24.3)	37 (14.6)	94 (29.8)	30 (31.9)	<0.001	36 (14.3)	125 (30.3)	<0.001	150 (23.5)	11 (44.0)	0.019
Chest tightness	154 (23.2)	37 (14.6)	91 (28.9)	26 (27.7)	<0.001	36 (14.3)	118 (28.6)	<0.001	148 (23.2)	6 (24.0)	0.926
Digestive symptoms
Abdominal pain	5 (0.8)	2 (0.8)	3 (1.0)	0 (0)	0.643	2 (0.8)	3 (0.7)	0.716	5 (0.8)	0 (0)	1.000
Diarrhoea	61 (9.2)	25 (9.8)	36 (11.4)	0 (0)	0.003	22 (8.8)	39 (9.5)	0.762	61 (9.6)	0 (0)	0.259
Nausea	31 (4.7)	11 (4.3)	15 (4.8)	5 (5.32)	0.923	9 (3.6)	22 (5.3)	0.299	30 (4.7)	1 (4.0)	0.714
Vomiting	17 (2.6)	6 (2.4)	9 (2.9)	2 (2.13)	0.895	6 (2.4)	11 (2.7)	0.825	16 (2.5)	1 (4.0)	0.865
Bloating	8 (1.2)	4 (1.6)	4 (1.3)	0 (0)	0.485	5 (2.0)	3 (0.7)	0.281	8 (1.3)	0 (0)	1.000
Systemic symptoms
Fever	527 (79.5)	198 (78.0)	257 (81.6)	72 (76.7)	0.427	186 (74.1)	341 (82.8)	0.007	508 (79.6)	19 (76.0)	0.660
Fatigue	208 (31.4)	63 (24.8)	110 (34.9)	35 (37.2)	0.015	67 (26.7)	141 (34.2)	0.043	199 (31.2)	9 (36.0)	0.611
Dizziness	23 (3.5)	2 (0.8)	15 (4.8)	6 (6.9)	0.009	3 (1.2)	20 (4.9)	0.023	22 (3.5)	1 (4.0)	0.682
Headache	20 (3.0)	7 (2.8)	11 (3.5)	2 (2.1)	0.757	7 (2.8)	13 (3.2)	0.789	20 (3.1)	0 (0)	1.000
Muscle ache	63 (9.5)	33 (13.0)	26 (8.3)	4 (4.3)	0.028	39 (15.5)	24 (5.8)	<0.001	63 (9.9)	0 (0)	0.157
Neurological symptoms
Unconsciousness	10 (1.5)	1 (0.4)	0 (0)	9 (9.6)	<0.001	0 (0)	10 ()	0.031	7 (1.1)	3 (12.0)	<0.001

Data are n (%) unless specified otherwise.

P <0.05 was considered statistically significant.