Table 1. Results of linear regression predicting two-year weight change in kilograms from time, time squared, sex, age group and body mass index (BMI) category, household population aged 18 to 64, Canada excluding territories, 1996/1997 to 2004/2005

Statistics Canada - Government of Canada

Table 1
Results of linear regression predicting two-year weight change in kilograms from time, time squared, sex, age group and body mass index (BMI) category, household population aged 18 to 64, Canada excluding territories, 1996/1997 to 2004/2005
Characteristics	Beta	95% confidence interval
Intercept	0.67¹	1.24 to 1.10
Time	0.60¹	0.21 to 1.00
Time squared	-0.13¹	-0.20 to 0.05
Gender
Male²	0.40¹	0.28 to 0.53
Age group
18 to 33³	0.30¹	0.15 to 0.46
50 to 64³	-0.33¹	-0.47 to 0.18
BMI category
Underweight⁴	1.56¹	0.97 to 2.15
Overweight⁴	-0.82¹	-0.99 to 0.66
Obese⁴	-1.88¹	-2.13 to -1.63
1. p <0.05 (probability less than 0.05)
2. Reference group, females
3. Reference group, 34 to 49 years
4. Reference group, acceptable weight
Data Source : National Population Health Survey (1996/1997 to 2004/2005)