Table 2 Multivariable analysis of factors associated with wheezing in the last 12 months

Age (years)

<0.01

 2 - 3

154 (25)

36

1

1

 4 - 5

157 (25)

24

0.54 (0.33 - 0.88)

0.51 (0.30 - 0.86)

 6 - 7

150 (24)

26

0.62 (0.38 - 1.01)

0.68 (0.40 - 1.14)

 8 - 10

167 (26)

19

0.42 (0.25 - 0.70)

0.46 (0.27 - 0.78)

Sex

0.037

 Male

316 (50)

30

1

1

 Female

312 (50)

22

0.68 (0.48 - 0.98)

0.74 (0.50 - 1.08)

Region

<0.01

 Curiapo

273 (43)

35

1

1

 Manuel Renaud

92 (15)

21

0.50 (0.28 - 0.87)

0.67 (0.36 - 1.26)

 Padre Barral

186 (30)

20

0.49 (0.32 - 0.76)

0.61(0.37 - 1.01)

 Santos de Abalgas

79 (13)

17

0.38 (0.20 - 0.72)

0.52(0.25 - 1.07)

Cooking method

<0.01

 Gas

123 (20)

15

1

1

 Gas and woodsmoke

203 (31)

20

1.38 (0.76 - 2.51)

1.44 (0.78 - 2.67)

 Woodsmoke

299 (48)

35

3.05 (1.77 - 5.24)

2.12 (1.18 - 3.84)

 Gasoline and woodsmoke

3 (1)

0

#

#

Wall status of house

<0.01

 With walls

431 (69)

20

1

1

 Without walls

196 (31)

40

2.66 (1.84 - 3.85)

1.83 (1.20 - 2.79)

 Unknown

1 (0)

0

#

#

Number of cigarettes per day smoked in household

<0.01

 0

318 (51)

28

1

1

 1 - 10

281 (45)

22

0.73 (0.50 - 1.06)

0.89 (0.57 -1.38)

 > 10

27 (4)

56

3.30 (1.48 - 7.32)

2.69 (1.11 - 6.48)

Relation of smoker to child

0.79

 Father

206 (33)*

25

1

 Brother

13 (3)

17

0.55 (0.12 - 2.58)

 Grandparents

83 (13)

29

0.58 (0.67 - 2.02)

 Mother

25 (4)

20

0.72 (0.26 - 1.95)

 Others

65 (10)

29

0.77 (0.61 – 2.04)