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Table 3 Age-specific incidence rates of pertussis for different time periods at the national level in Chile

From: Whooping cough dynamics in Chile (1932–2010): disease temporal fluctuations across a north-south gradient

Years

I (<1 y)

I (1–4 y)

I (5–9 y)

I (10–19 y)

I (20–44 y)

I (>45 y)

1952–1960

24.80

42.90

17.43

3.92

0.32

0.14

1961–1970

11.35

18.82

8.56

1.95

0.18

0.03

1971–1980

12.78

22.45

9.02

1.94

0.19

0.17

1981–1990

1.84

1.53

0.98

0.40

0.04

0.01

1991–2000

3.25

2.78

1.01

0.42

0.21

0.07

2001–2010

3.44

1.89

0.73

0.41

0.30

0.16

  1. Numbers in parenthesis are the age-classes in years
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BMC Infectious Diseases

ISSN: 1471-2334

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