Population (study)

Year

Age (years)

Household smoking status

Children with asthma

Children without asthma

Rate (%)

95% CI

Rate (%)

95% CI

Australia (1)

2004–05

0–14

One or more regular smokers usually smoke inside the house

11.0

8.1–13.9

9.4

8.3–10.4

Victoria (2)

2006

1 to under 13

No smoker

65.0

60.7–69.4

68.1

66.3–69.9

Regular smoker/s

35.0

30.6–39.3

31.9

30.1–33.6

(n = 652)

(n = 3,933)

Victoria (2)

2006

1 to under 13

Always or usually smoke outside the house

88.1

83.0–93.1

85.8

83.4–88.2

Sometimes smoke inside and sometimes smoke outside

9.4

4.8–14.1

10.0

8.1–11.8

Usually smoke inside and sometimes smoke outside

2.5

0.3–4.6

4.2

2.6–5.7

(n = 255)

(n = 1,287)

Western Australia (3)

2006–07

Under 16

My home is smoke-free

97.3

94.0–98.8

96.0

94.1–97.3

People occasionally smoke inside the house

2.2

0.9–5.6

2.0

1.2–3.3

People frequently smoke inside the house

0.5

0.2–1.7

2.0

1.1–3.7

(n = 127)

(n = 1,051)

South Australia (4)

2006–07

2–15

My home is smoke-free

92.5

87.9–95.5

95.2

93.8–96.3

People occasionally smoke inside the house

1.9

0.7–5.0

3.3

2.4–4.5

People frequently smoke inside the house

5.5

3.1–9.8

1.5

0.9–2.4

(n = 189)

(n = 1,087)