Skip to main content
. 2022 Jan 18;9:799536. doi: 10.3389/fpubh.2021.799536

Table 3.

Characteristics of casesa in three stages in Chaoyang District, China (2020).

Characteristics 1 January-29 February 1 March-31 May 1 June-31 December In total
n = 87 n = 109 n = 15 n = 211
Source of infection
Local cases 38(43.7) 4(3.7) 5(33.3) 47(22.3)
Imported cases inside of China 40(46.0) 0(0) 0(0) 40(19.0)
Imported cases outside of China 9(10.3) 105(96.3) 10(66.7) 124(58.7)
Sex
Male 49(56.3) 46(42.2) 9(60.0) 104(49.3)
Female 38(43.7) 63(57.8) 6(40.0) 107(50.7)
Age, years
Median(IQR) 42 (31–54) 24 (20–39) 36 (23–48) 33 (22–47)
0–19 7 (8) 20(18.3) 2(13.3) 29(13.7)
20–39 29(33.3) 62(56.9) 7(46.7) 98(46.4)
40–59 38(43.7) 24 (22) 4(26.7) 66(31.3)
60–79 11(12.6) 3(2.8) 2(13.3) 16(7.6)
≥80 2(2.3) 0(0) 0(0) 2(1.0)
Clinical severity
Symptomatic patients
Mild patients 36(41.4) 56(51.4) 8(53.3) 100(47.4)
Moderate patients 29(33.3) 47(43.1) 6 (40) 82(38.9)
Severe patients 7(8.0) 0(0) 0(0) 7(3.3)
Critical patients 8(9.2) 6(5.5) 0(0) 14(6.6)
Asymptomatic patients
7(8.0) 0(0) 1(6.7) 8(3.8)

Data are presented as no. (%) of cases unless otherwise indicated.

a

Cases are comprised of symptomatic and asymptomatic infected cases.

b: IQR is the abbreviation of Interquartile range.