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Table 2 Standardized mortality ratios (SMR) in age groups 0–14, 15–64 and 65+ years among 16,710 domestically infected Campylobacter cases in Sweden 1997–2003

From: Mortality following Campylobacter infection: a registry-based linkage study

Time after infection

Age group (years)

Obs*

Exp*

SMR* (95% CI*)

0–1 months

0–14

1

0.1

8.9 (0.2–32.9)

 

15–64

4

2.0

2.0 (0.5–4.3)

 

65+

25

8.3

3.0 (2.0–4.3)

1–3 months

0–14

0

0.2

0 (0–13.5)

 

15–64

7

4.1

1.7 (0.7–3.2)

 

65+

24

16.4

1.5 (0.9–2.1)

3–12 months

0–14

3

1.0

3.1 (0.6–7.6)

 

15–64

26

18.5

1.4 (0.9–2.0)

 

65+

94

74.4

1.3 (1.0–1.5)

>12 months

0–14

0

2.3

0 (0–1.3)

 

15–64

72

75.5

1.0 (0.7–1.2)

 

65+

307

310.7

1.0 (0.9–1.1)

  1. * Obs, observed number of deaths; Exp, expected number of deaths; SMR, standardized mortality ratio; CI, confidence interval