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Table 1 Frequency of hospitalisations by ALRI diagnosis and age group in Aboriginal and non-Aboriginal children

From: A retrospective population-based cohort study identifying target areas for prevention of acute lower respiratory infections in children

ALRI diagnosis

Age group

Number of hospitalisations (Ratea)

  

Aboriginal

Non-Aboriginal

Whooping cough

<1 month

6

(4.2)

25

(1.3)

 

1-2 months

36

(12.7)

101

(2.7)

 

3-5 months

42

(10.1)

62

(1.1)

 

6-11 months

13

(1.6)

26

(0.2)

 

12-23 months

6

(0.4)

23

(0.1)

 

2-4 years

0

-

10

(0.0)

 

5-9 years

1

(0.05)

6

(0.02)

Pneumonia

<1 month

42

(29.1)

136

(7.2)

 

1-2 months

118

(41.6)

133

(3.6)

 

3-5 months

241

(57.9)

212

(3.9)

 

6-11 months

570

(71.7)

629

(6.0)

 

12-23 months

740

(51.0)

1,614

(8.4)

 

2-4 years

711

(21.4)

1,937

(4.4)

 

5-9 years

124

(6.0)

520

(1.8)

Bronchiolitis

<1 month

119

(82.4)

546

(28.9)

 

1-2 months

579

(204.0)

1,958

(52.6)

 

3-5 months

923

(222.1)

2,221

(40.7)

 

6-11 months

1,090

(137.2)

2,510

(24.0)

 

12-23 months

467

(32.2)

1,172

(6.1)

 

2-4 years

97

(2.9)

281

(0.6)

 

5-9 years

3

(0.1)

22

(0.1)

Influenza

<1 month

4

(2.8)

23

(1.2)

 

1-2 months

20

(7.0)

72

(1.9)

 

3-5 months

29

(7.0)

101

(1.9)

 

6-11 months

43

(5.4)

179

(1.7)

 

12-23 months

41

(2.8)

270

(1.4)

 

2-4 years

42

(1.3)

321

(0.7)

 

5-9 years

9

(0.4)

80

(0.3)

Bronchitis

<1 month

3

(2.1)

2

(0.1)

 

1-2 months

20

(7.0)

24

(0.6)

 

3-5 months

46

(11.1)

52

(1.0)

 

6-11 months

69

(8.7)

107

(1.0)

 

12-23 months

88

(6.1)

147

(0.8)

 

2-4 years

69

(2.1)

135

(0.3)

 

5-9 years

11

(0.5)

33

(0.1)

Unspecified ALRI

<1 month

15

(10.4)

35

(1.9)

 

1-2 months

15

(20.4)

55

(1.5)

 

3-5 months

119

(28.6)

88

(1.6)

 

6-11 months

319

(40.1)

309

(3.0)

 

12-23 months

480

(33.0)

803

(4.2)

 

2-4 years

386

(11.7)

1,008

(2.3)

 

5-9 years

65

(3.2)

254

(0.9)

Total ALRI

<1 month

189

(131.0)

767

(40.6)

 

1-2 months

831

(292.7)

2,343

(62.9)

 

3-5 months

1,400

(336.8)

2,736

(50.2)

 

6-11 months

2,104

(264.8)

3,760

(36.0)

 

12-23 months

1,822

(125.5)

4,029

(21.0)

 

2-4 years

1,305

(39.4)

3,692

(8.4)

 

5-9 years

213

(10.4)

915

(3.2)

  1. aRate per 1000 child-years at risk