Table 1 Characteristics of the COVID-19 patients

From: Dynamics of neutralizing antibody responses to SARS-CoV-2 in patients with COVID-19: an observational study

 

Total population

n = 545

Peak analysis

n = 328

Decay analysis

n = 194

6-month visit

n = 197

Age, year, Mean ± sd

50.9 ± 15.0

49.9 ± 14.5

52.2 ± 13.9

55.9 ± 13.3

Age, N(%)

18 ~ 40 year

140 (25.7%)

88 (26.8%)

41 (21.1%)

28 (14.2%)

41 ~ 60 year

262 (48.1%)

159 (48.5%)

98 (50.5%)

93 (47.2%)

61 ~ 90 year

143 (26.2%)

81 (24.7%)

55 (28.4%)

76 (38.6%)

Gender, N (%)

female

259 (47.5%)

155 (47.3%)

86 (44.3%)

92 (46.7%)

male

286 (52.5%)

173 (52.7%)

108 (55.7%)

105 (53.3%)

Disease severitya, N (%)

mild

491 (90.1%)

304 (92.7%)

181 (93.3%)

181 (91.9%)

severe

54 (9.9%)

24 (7.3%)

13 (6.7%)

16 (8.1%)

Number of antibody testing, N (%)

1

166 (30.5%)

26 (7.9%)

0 (0%)

26 (13.2%)

2

111 (20.4%)

76 (23.2%)

31 (16.0%)

24 (12.2%)

3

144 (26.4%)

126 (38.4%)

87 (44.8%)

76 (38.6%)

≥4

124 (22.8%)

100 (30.5%)

76 (39.2%)

71 (36.0%)

Number of RT-PCR testing, Mean ± sd

7.0 ± 2.3

7.3 ± 2.2

7.2 ± 2.1

6.9 ± 2.1

Days from symptom to PCR positiveb, Mean ± sd

11.7 ± 8.4

12.6 ± 8.1

13.1 ± 8.1

12.3 ± 8.0

Duration of COVID-19c, day, Mean ± sd

25.6 ± 13.1

26.8 ± 12.6

29.8 ± 12.4

28.7 ± 13.2

Length of follow upd, days

62 (45, 175)

63 (49, 179)

174 (62, 183)

180 (174, 184)

Use of hydroxychloroquinee, N (%)

49 (13.5%)

39 (14.1%)

22 (12.8%)

21 (15.1%)

Use of glucocorticoidse, N (%)

178 (48.9%)

135 (48.9%)

90 (52.3%)

79 (56.8%)

  1. a Severe COVID-19 was defined as need for ICU, respiratory failure, mechanical ventilation, or death.
  2. b in symptomatic patients. Symptoms considered included fever, coughing, sore throat, tiredness, dyspnea, aches and pains, diarrhea, and loss of taste or smell.
  3. c defined as days from onset of symptoms to virus shedding (RT-PCR test turning from positive to negative).
  4. d presented as median (25th, 75th percentile).
  5. e in patients with medical information.