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Table 2
Odds ratios relating selected characteristics to low self-esteem, household population aged 10 or 11 in 1994/1995, Canada excluding territories, 1994/1995, 1996/1997 and 1998/1999

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Characteristics in 1994/1995 Cross-sectional analysis Two-year follow-up (1996/1997) Four-year follow-up (1998/1999)
Odds ratio 95% confidence interval Adjusted odds ratio 95% confidence interval Odds ratio 95% confidence interval Adjusted odds ratio 95% confidence interval Odds ratio 95% confidence interval Adjusted odds ratio 95% confidence interval
from to from to from to from to from to from to
Self-esteem
Normal 1.00 1.00 1.00 1.00
Low 3.55* 2.40 5.23 3.40* 2.24 5.17 3.29* 2.16 5.01 3.19* 1.97 5.12
Body weight
Normal 1.00 1.00 1.00 1.00 1.00 1.00
Overweight 1.33 0.92 1.93 1.29 0.86 1.94 1.38 0.93 2.06 1.36 0.87 2.14 1.12 0.74 1.69 1.03 0.64 1.66
Obesity 1.96* 1.09 3.62 1.84* 1.01 3.47 1.47 0.78 2.75 1.15 0.59 2.26 2.18* 1.08 4.39 1.82* 1.01 3.78
Sex
Girl 1.00 1.00 1.00 1.00 1.00 1.00
Boy 0.94 0.71 1.26 0.94 0.68 1.29 0.52* 0.38 0.71 0.48* 0.33 0.69 0.39* 0.28 0.54 0.37* 0.25 0.55
School performance
Poor or very poor 1.00 1.00 1.00 1.00 1.00 1.00
Average 0.69 0.34 1.40 0.68 0.33 1.42 0.72 0.30 1.73 0.81 0.33 2.00 1.76 0.61 5.13 1.45 0.50 4.18
Good or very good 0.43* 0.22 0.84 0.43* 0.21 0.86 0.41* 0.18 0.97 0.47 0.19 1.13 1.43 0.52 3.91 1.20 0.44 3.27
Residence
Rural 1.00 1.00 1.00 1.00 1.00 1.00
Urban 1.03 0.79 1.34 1.04 0.78 1.39 1.11 0.83 1.49 1.08 0.79 1.50 1.30 0.93 1.82 1.18 0.81 1.73
Annual household income
Less than $20,000 1.00 1.00 1.00 1.00 1.00 1.00
$20,000 to $39,999 1.17 0.52 2.69 1.27 0.54 2.99 0.60 0.27 1.35 0.57 0.26 1.26 1.24 0.54 2.85 0.91 0.38 2.20
$40,000 to $59,999 1.06 0.46 2.44 1.09 0.46 2.59 0.81 0.36 1.83 0.80 0.36 1.76 1.30 0.57 2.95 0.96 0.41 2.27
$60,000 or more 0.99 0.44 2.20 1.02 0.44 2.39 0.53 0.24 1.17 0.54 0.24 1.21 0.85 0.38 1.88 0.65 0.28 1.52
Parental education
Less than secondary graduation 1.00 1.00 1.00 1.00 1.00 1.00
Secondary graduation 0.41* 0.20 0.84 0.42* 0.19 0.93 0.68 0.36 1.32 0.81 0.42 1.57 0.86 0.39 1.88 0.90 0.42 1.92
Some postsecondary 0.54 0.28 1.02 0.58 0.29 1.16 0.67 0.36 1.24 0.82 0.45 1.51 0.95 0.47 1.91 1.16 0.57 2.39
Postsecondary graduation 0.79 0.45 1.42 0.93 0.48 1.80 0.82 0.46 1.46 1.01 0.55 1.85 1.04 0.55 1.97 1.24 0.63 2.42
Weekly physical activity
Twice or less 1.00 1.00 1.00 1.00 1.00 1.00
Three or four times 0.79 0.54 1.15 0.83 0.56 1.23 0.66 0.42 1.04 0.74 0.46 1.21 0.71 0.45 1.12 0.77 0.47 1.26
Five to seven times 0.76 0.54 1.06 0.79 0.55 1.12 0.68* 0.48 0.98 0.79 0.53 1.19 0.50* 0.33 0.76 0.55* 0.34 0.89
Eight or more times 0.37* 0.19 0.72 0.37* 0.18 0.77 0.32* 0.15 0.69 0.50 0.22 1.10 0.45 0.20 1.00 0.62 0.24 1.59
Weekly screen time
Twice or less 1.00 1.00 1.00 1.00 1.00 1.00
Three or four times 1.36 0.52 3.54 1.60 0.60 4.31 0.58 0.19 1.83 0.70 0.21 2.32 0.63 0.17 2.33 0.67 0.15 2.93
Five to seven times 1.31 0.58 2.99 1.33 0.56 3.16 1.20 0.45 3.19 1.23 0.44 3.42 1.50 0.49 4.58 1.65 0.47 5.87
Eight or more times 1.40 0.60 3.24 1.40 0.58 3.35 1.27 0.47 3.47 1.47 0.52 4.18 1.47 0.48 4.50 2.14 0.60 7.63
† reference category
* significantly different from reference category (p < 0.05)
Source: 1994/1995, 1996/1997, and 1998/1999 National Longitudinal Survey of Children and Youth.
Table source: Statistics Canada, 2009, "The influence of childhood obesity on the development of self-esteem", Health Reports, Vol. 20, No. 2, catalogue number 82-003-X.