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Table 3 Age distribution comparison of respiratory pathogen infections between 2021–2022 and 2023

From: Epidemiological characteristics of respiratory tract infections during and after the pandemic of COVID-19 from 2021 - 2023 in Shenzhen, southern China

Year

Age Group

Virus Detection, n (%)

Bacteria Detection, n (%)

Total number of cases

IVA

IVB

RSV

Total positive cases

Total number of cases

ABA

HIN

KP

PAE

SAU

SMA

SP

MRSA

Total positive cases

2021–2022

Children (< 5 years)

2128

97(4.6)

21(1.0)

287(13.5)

405(19.0)

47

1(2.1)

16(34.0)

2(4.3)

0(0.0)

5(10.6)

0(0.0)

10(21.3)

5(10.6)

39(83.0)

School-age children (5‒17 years)

672

58(8.6)

45(6.7)

12(1.8)

115(17.1)

83

4(4.8)

7(8.4)

0(0.0)

0(0.0)

4(4.8)

0(0.0)

7(8.4)

4(4.8)

26(31.3)

Adult (18‒59 years)

3191

93(2.9)

47(1.5)

13(0.4)

153(4.8)

4187

78(1.9)

300(7.2)

163(3.9)

114(2.7)

114(2.7)

19(0.5)

105(2.5)

234(5.6)

1127(26.9)

Older people (≥ 60 years)

1028

69(6.7)

4(0.4)

9(0.9)

82(8.0)

1674

106(6.3)

170(10.2)

134(8.0)

134(8.0)

55(3.3)

32(1.9)

67(4.0)

240(14.3)

938(56.0)

 

X²

 

56.87

120.7

558.5

306.5

 

79.1

55.98

47.13

89.82

12.04

31.25

67.76

125.1

489.5

 

P

 

< 0.0001

< 0.0001

< 0.0001

< 0.0001

 

< 0.0001

< 0.0001

< 0.0001

< 0.0001

0.0073

< 0.0001

< 0.0001

< 0.0001

< 0.0001

2023

Children (< 5 years)

1390

77(5.5)

10(0.7)

261(18.8)

348(25.0)

13

0(0.0)

0(0.0)

0(0.0)

0(0.0)

1(7.7)

0(0.0)

1(7.7)

4(30.8)

6(46.2)

School-age children (5‒17 years)

1129

133(11.8)

26(2.3)

18(1.6)

177(15.7)

82

0(0.0)

11(13.4)

0(0.0)

1(1.2)

3(3.7)

0(0.0)

8(9.8)

3(3.7)

26(31.7)

Adult (18‒59 years)

3655

526(14.4)

170(4.7)

34(0.9)

730(20.0)

2338

27(1.2)

219(9.4)

72(3.1)

62(2.7)

76(3.3)

9(0.4)

68(2.9)

92(3.9)

625(26.7)

Older people (≥ 60 years)

1812

129(7.1)

17(0.9)

32(1.8)

178(9.8)

1385

73(5.3)

133(9.6)

103(7.4)

64(4.6)

48(3.5)

45(3.2)

47(3.4)

171(12.3)

684(49.4)

 

X²

 

93.79

92.47

853.3

142.8

 

60.39

2.889

42.44

12.11

0.909

52.57

12.82

106.2

197

 

p

 

< 0.0001

< 0.0001

< 0.0001

< 0.0001

 

< 0.0001

0.409

< 0.0001

0.007

0.8233

< 0.0001

0.005

< 0.0001

< 0.0001