Table 1.
Comparisons of characteristics between COVID-19 and influenza patients
Demographic and clinical characteristics | COVID-19 patients (n=79) | Influenza patients (n=75) | P-value |
Age, years | 54 (45-63) | 59 (48-70) | 0.082 |
Sex | | | 0.670 |
Male | 49 (62.0) | 44 (58.7) | |
Female | 30 (38.0) | 31 (41.3) | |
Symptoms | | | |
Fever | 74 (93.7) | 71 (94.7) | 0.792 |
Cough | 47 (59.5) | 65 (86.7) | <0.001 |
Expectoration | 23 (29.1) | 52 (69.3) | <0.001 |
Headache | 8 (10.1) | 24 (32.0) | 0.001 |
Myalgia or fatigue | 23 (29.1) | 25 (33.0) | 0.572 |
Chill | 6 (7.6) | 29 (38.7) | <0.001 |
Pharyngalgia | 4 (5.1) | 7 (9.3) | 0.304 |
Dyspnea | 20 (25.3) | 27 (36.0) | 0.150 |
Nausea or vomiting | 3 (3.8) | 4 (5.3) | 0.674 |
Basic vital signs | | | |
Tmax,℃ | 38.2 (37.5-38.9) | 38.9 (37.7-39.5) | 0.014 |
Temperature at hospital admission, ℃ | 37.0 (36.6-37.5) | 37.5 (37.0-38.0) | <0.001 |
Respiratory rate, breaths/min | 18.0 (18.0-20.0) | 20.0 (18.0-20.0) | 0.014 |
Heart rate, beats/min | 87.0 (78.0-95.0) | 87.0 (78.0-100.0) | 0.519 |
Mean arterial pressure, mmHg | 100.0 (87.0-108.3) | 96.0 (91.7-104.3) | 0.831 |
Coexisting disorders | | | |
Hypertension | 29 (36.7) | 29 (38.7) | 0.802 |
Diabetes | 12 (15.2) | 13 (17.3) | 0.718 |
Cardiovascular disease | 5 (6.3) | 11 (14.7) | 0.090 |
Chronic obstructive pulmonary disease | 4 (5.1) | 6 (8.0) | 0.460 |
Chronic liver disease | 9 (11.4) | 10 (13.3) | 0.714 |
Chronic kidney disease | 3 (3.8) | 6 (8.0) | 0.266 |
CPIS | 2.0 (1.0-3.0) | 2.0 (1.0-4.0) | 0.310 |
CT severity score | 10.0 (6.0-16.0) | 9.0 (6.0-18.0) | 0.892 |
Days from illness onset to hospital admission, d | 5.0 (2.0-7.0) | 6.0 (3.0-7.0) | 0.052 |
Receiving treatment before admission | 40 (50.6) | 53 (70.0) | 0.011 |
Antibiotics | 18 (22.8) | 45 (60.0) | <0.001 |
Oseltamivir | 10 (12.7) | 26 (34.7) | 0.001 |
Lopinaviritonavir | 23 (29.1) | 0 (0.0) | <0.001 |
Hormones | 22 (27.8) | 18 (24.0) | 0.586 |
Length of hospital stay, d | 17 (14-24) | 8 (5-14) | <0.001 |
Laboratory results | | | |
White blood cell count, ×109/L | 5.7 (3.9-8.7) | 6.0 (4.1-9.5) | 0.486 |
Neutrophil count, ×109/L | 4.1 (2.5-7.2) | 4.2 (2.5-7.2) | 0.915 |
Lymphocyte count, ×109/L | 0.8 (0.5-1.2) | 0.9 (0.6-1.4) | 0.084 |
NLR | 5.5 (2.3-14.3) | 4.4 (2.4-11.7) | 0.345 |
Monocyte count, ×109/L | 0.3 (0.2-0.5) | 0.5 (0.3-0.7) | 0.004 |
Platelet count, ×109/L | 191.0 (145.0-234.0) | 165.0 (124.0-234.0) | 0.102 |
Hemoglobin, g/L | 141.0 (127.0-150.0) | 121.0 (107.0-140.0) | <0.001 |
Red blood cell distribution width, % | 12.2 (11.9-12.7) | 12.8 (12.2-14.0) | <0.001 |
Erythrocyte sedimentation rate, mm/h | 30.0 (14.0-60.0) | 40.0 (19.0-58.0) | 0.402 |
C-reactive protein, mg/L | 24.3 (9.4-51.2) | 32.3 (13.7-82.1) | 0.068 |
Procalcitonin, ng/mL | 0.06 (0.04-0.09) | 0.15 (0.07-0.44) | <0.001 |
Lactose dehydrogenase, U/L | 246.0 (206.0-337.0) | 244.0 (193.0-375.4) | 0.800 |
Hydroxybutyrate dehydrogenase, U/L | 207.0 (172.0-276.0) | 209.0 (168.0-322.6) | 0.641 |