Table 1 Socio-demographic characteristics of the study population by location of dwelling

Median age (25th percentile, 75th percentile)

9.0 (7.0–11.0)

9.0 (7.0–11.0)*†

10.0 (7.0–12.0)‡

10.0 (7.38–10.0)

0.004

% Female

50.5

50.9

54.1‡

47.0

0.053

% >high school (maternal)

76.2

78.8*

61.6‡

75.7

<0.001

 % Caucasian

64.1

64.8*†

39.7‡

76.1

<0.001

 % First Nations or Metis

15.8

8.8

50.5

18.9

 % Other ethnic background

20.1

26.4

9.9

5.0

% Maternal smoking

17.3

13.1*†

39.2‡

18.8

<0.001

% Paternal smoking

23.3

19.0*†

45.9‡

25.5

<0.001

% Dampness in the home

16.2

14.9*

22.7‡

17.4

0.001

% Home mould

11.9

11.0*

19.2‡

10.9

<0.001