Table 2 Clinical symptoms and biomarkers at admission

 Fever

436 (59.3)

223 (57.3)

210 (61.6)

0.24

 Headache

39 (5.3)

25 (6.4)

13 (3.8)

0.11

 Nausea/vomiting

154 (21)

99 (25.5)

54 (15.8)

0.001

 Diarrhea

187 (25.4)

104 (26.7)

80 (24.5)

0.31

 Digestive symptoms (nausea, vomiting, or diarrhea)

269 (36.6)

153 (39.3)

112 (32.8)

0.06

 Abdominal pain

65 (8.8)

37 (9.5)

28 (8.2)

0.54

 Rhinorrhea

28 (3.8)

18 (4.6)

10 (2.9)

0.23

 Sore throat

47 (6.4)

25 (6.4)

21 (6.2)

0.88

 Cough (productive)

125 (17)

62 (16)

63 (18.5)

0.36

 Cough (no-productive)

329 (44.8)

184 (47.3)

143 (41.9)

0.15

 Chest tightness or pain

99 (13.5)

53 (13.6)

46 (13.5)

0.95

 Dyspnea

422 (57.4)

238 (61.2)

183 (53.7)

0.04

 Anosmia

18 (2.5)

10 (2.6)

8 (2.4)

0.84

 Ageusia

25 (3.4)

13 (3.3)

12 (3.5)

0.9

 Myalgia

203 (27.7)

115 (29.6)

87 (25.5)

0.21

 Confusion

127 (17.3)

65 (16.7)

62 (18.2)

0.6

 Fatigue

237 (32.3)

139 (35.7)

97 (28.5)

0.03

 ALT > 56 U/L ^a (n = 729)

204 (278)

54 (21.4)

88 (36.8)

0.0002

 AST >40 U/L ^b (n = 727)

192 (26.4)

47 (18.7)

88 (36.9)

< 0.0001

 CRP > 3 mg/L ^c (n = 641)

632 (98.6)

270 (98.2)

264 (97.8)

0.73

 D-dimer > 0.5 mg/L (n = 541)

486 (89.8)

147 (63.1)

131 (57.2)

0.2

 Ferritin > 300 ng/mL (n = 640)

437 (68.3)

163 (58.8)

199 (75.4)

< 0.0001

 Glucose ≥ 140 mg/dL (n = 598)

286 (48.6)

153 (47.7)

130 (49.1)

0.74

 A1c > 5.7% (n = 262)

262 (83.7)

163 (80.7)

143 (78.1)

0.53

 LDH ≥ 220 U/L^d (n = 629)

522 (83)

226 (81.3)

213 (82.9)

0.63

 Procalcitonin ≥ 0.1 ng/mL (n = 494)

423 (85.6)

98 (56.7)

112 (69.6)

0.01

 Troponin ≥ 0.04 ng/ml (n = 549)

121 (22)

62 (29.7)

53 (28.3)

0.77

 NT-Pro BNP > 400 pg/ml ^e (n = 603)

178 (29.5)

39 (41.5)

27 (38)

0.65

 WBC count < 4.0 × 10³/uL ^f (n = 732)

71 (9.7)

20 (9.4)

22 (11.2)

0.55

 Lymphocytes < 1.0 × 10³/uL (n = 732)

304 (41.5)

74 (36.8)

86 (46.5)

0.06

 Platelets < 150 × 10³/uL (n = 733)

121 (16.5)

36 (17.9)

35 (18.9)

0.8

 Neutrophils > 1.8 × 10³/uL (n = 732)

709 (96.9)

199 (99.5)

182 (100)

0.34

 NLR>6 ^g (n = 732)

275 (37.6)

125 (32.1)

147 (43.4)

0.001

 Monocytes > 1.0 × 10³/uL (n = 732)

104 (14.2)

27 (12.8)

37 (18.9)

0.09