# Table 1 Descriptive statistics of the sample

Health Problem vs. Healthy Comparison
Total Sample (n = 13,790) Health Problem (n = 7196) Healthy (n = 6594) t or chi-square tests and p-values SI
Child-specific measures
Age group
4–6 years old, % 37.78 37.16 38.45 X2 2 = 1.01, ns 0.03
7–9 years old, % 37.12 37.56 36.63 X2 2 = 0.57, ns 0.02
10–11 years old, % 25.10 25.28 24.92 X2 2 = 0.10, ns 0.01
% male 51.15 54.90 47.06 X2 1 = 34.45, p < 0.0001 0.16
% born in Canada 94.65 95.99 93.19 X2 1 = 12.73, p = 0.0004 0.13
Family-specific measures
Income, mean (sd) \$52,501 (\$91,376) \$52,544 (\$85,800) \$52,454 (\$75,658) t = 0.08, ns 0.00
% PMKs with at least high school education 83.78 83.32 84.28 X2 1 = 0.80, ns 0.03
% Two-parent families 83.88 81.75 86.20 X2 1 = 16.96, p < 0.0001 0.12
Child health status measures
% Good/fair/poor health 12.40 19.01 5.19 X2 1 = 277.54, p < 0.0001 0.42
% Injured in past year 11.18 13.92 8.18 X2 1 = 54.68, p < 0.0001 0.18
% Hospitalized in past year 3.81 7.29 0.00 X2 1 = 260.60, p < 0.0001 0.38
% Behaviour problems 29.28 34.37 23.71 X2 1 = 72.79, p < 0.0001 0.23
% Taking medication regularly 10.85 20.79 0.00 X2 1 = 775.29, p < 0.0001 0.67
1. Presence of a health problem is determined by meeting the criteria of at least one of the four indicators.