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Table 4 Incidence, case fatality rate and mortality in invasive pneumococcal disease in greater Gothenburg during 45 years

From: Epidemiology of invasive pneumococcal infections: manifestations, incidence and case fatality rate correlated to age, gender and risk factors

 

1964–1980 (17 years)

Age (years)

Mean pop.a

No. IPD

Incidenceb

Died (No.)

CFR (%)c

Mortalityd

0–1

15,248

52

23

8

15

3.1

2–17

118,570

32

2

3

9

0.1

18–50

264,282

161

4

28

17

0.6

51–65e

98,657

129

9

27

21

1.6

66–101e

79,387

134

11

34

25

2.5

All ages

576,143

508

5

100

20

1.0

 

1981–1995 (15 years)

Age (years)

Mean pop.a

No. IPD

Incidenceb

Died (No.)

CFR (%)c

Mortalityd

0–1

15,169

67

29

5

7

2.2

2–17

103,624

35

2

3

9

0.2

18–50

280,287

189

4

18

10

0.4

51–64

84,475

167

13

27

16

2.1

65–101

99,233

441

30

83

19

5.6

All ages

582,789

899

10

136

15

1.6

 

1996–2008 (13 years)

Age (years)

Mean pop.a

No. IPD

Incidenceb

Died (No.)

CFR (%)c

Mortalityd

0–1

11,636

37

24

1

3

0.66

2–17

118,604

31

2

1

3

0.06

18–50

308,938

257

6

9

4

0.22

51–64

102,280

228

17

10

4

0.75

65–101

102,161

530

40

72

14

5.4

All ages

643,620

1083

13

93

9

1.1

  1. aMean population during the period. Values for 1964–1980 are calculated on data from 1968–1980
  2. bIncidence: No. of IPD episodes/100,000 inhabitants/year
  3. cCase fatality rate
  4. dNo of patients who died from IPD/100,000 inhabitants/year
  5. eData from 1964–80 concern 51–65 and 66 years and above
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BMC Infectious Diseases

ISSN: 1471-2334

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