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Table 2 Summary statistics of demographic characteristics, mortality, hospitalization, and virological and meteorological data in Brisbane in different periods

From: Comparison of influenza disease burden in older populations of Hong Kong and Brisbane: the impact of influenza and pneumococcal vaccination

 

Whole period

Pre-SARS

Post-SARS

Post-pandemic

Mean

SD

Min.

Max.

Mean

SD

Min.

Max.

Mean

SD

Min.

Max.

Mean

SD

Min.

Max.

Elderly population (per 1000)

116.2

6.5

106.6

129

107.8

1

106.6

108.6

114

2.6

110.4

119.8

126.1

2.5

122.7

129

Weekly death no. (n)

 All-causes

94.9

13.7

56

142

94.6

13.9

74

134

95

13.6

63

142

95

15.5

56

141

 CRD

48.9

10.3

23

85

53.6

11.4

31

85

50

10.1

23

80

43.6

9.3

26

76

 P&I

3.2

2

0

13

3.6

1.9

0

11

3.8

2.1

0

13

2.3

1.6

0

8

 COPD

4.5

2.3

0

15

4.9

2.5

0

11

4.3

2.3

0

15

4.7

2.3

0

12

 Stroke

11

3.7

2

29

13.6

4

5

29

11.1

3.6

3

22

9

2.9

2

18

 IHD

19.7

5.8

6

45

22.4

6.3

9

45

20.2

5.6

6

38

16.6

4.8

7

35

Weekly hospitalization no. (n)

 CRD

271.4

45.7

189

467

266.4

44.9

193

384

275.3

46.3

189

467

    

 P&I

25.2

10.6

9

65

24.7

10

9

51

25.9

10.8

9

65

    

 COPD

46.1

14.8

18

96

45.3

14.8

18

87

47.2

15.1

20

96

    

 Stroke

22.5

5.1

9

37

22.5

4.8

10

36

22.6

5.2

9

37

    

 IHD

75.7

10.3

43

103

78.6

9.8

57

103

74.7

10.6

43

102

    

 Weekly positive specimens (n)

6.1

22.1

0

272

0.5

0.9

0

5

1.6

3.5

0

28

23.8

44.3

1

272

 Weekly positive percentage (%)

2

3.6

0

35.1

2.3

4.6

0

20

2

3.9

0

35.1

2.1

2.4

0

13.2

 Temperature (°C)

21.2

3.7

13.4

30.4

20.8

3.8

14.3

28.4

21.6

3.7

13.5

30.4

20.9

3.5

14.1

27.8

 Relative Humidity (%)

57.9

8.5

32.1

90.2

54.4

7.7

36.1

73.9

57.4

8.1

32.1

79.2

60.4

9.2

36.9

90.2

  1. Note. Weekly positive percentage (%) is defined as the percentage of positive specimens among annual total specimens