Table A
Coefficients for model of self-reported adult (age 20 or older) body mass index value, by sex and for auto-regressive model order 1, derived from data from the National Population Health Survey 1994/1995 through 2006/2007
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Terms | Men | Women |
---|---|---|
Intercept | 0.198 | 0.169 |
Age group | ||
20 to 29 | 0.032 | 0.027 |
30 to 39 | 0.027 | 0.025 |
40 to 49 | 0.026 | 0.026 |
50 to 59 | 0.024 | 0.026 |
60 to 69 | 0.018 | 0.024 |
70 to 79 | 0.010 | 0.011 |
80 or older | 0 | 0 |
Previous BMI value(s), log | ||
At time t-2 years | 0.933 | 0.940 |
At time t-4 years | 0 | 0 |
At time t-6 years | 0 | 0 |
At time t-8 years | 0 | 0 |
Leisure-time physical activity (minutes per day) | ||
None | 0.003 | 0.005 |
Less than 30 | 0.004 | 0.008 |
30 to less than 60 | 0.003 | 0.004 |
60 or more | 0 | 0 |
Cycling for transportation or errands | ||
No | 0 | 0 |
Yes | -0.005 | -0.001 |
Longitudinal trend in walking for transportation or errands | ||
None | 0 | 0 |
Downward | 0.003 | 0.0001 |
Upward | 0.0008 | 0.0009 |
Longitudinal trend in usual daily physical activity | ||
None | 0 | 0 |
Downward | 0.003 | 0.003 |
Upward | 0.0004 | -0.0006 |
Smoking status | ||
Never smoker | 0 | 0 |
Former smoker | 0.003 | 0.003 |
Current smoker | -0.002 | -0.004 |
Longitudinal trend in smoking | ||
None | 0 | 0 |
Downward | 0.007 | 0.021 |
Upward | -0.003 | -0.004 |
Note: The BMI prediction model for adult men and women is: log(BMI) = α + βA’Age + βH’log(Previous BMI values) + βPA’Physical Activity + βS’Smoking + σε Sources: 1994/1995 through 2006/2007 National Population Health Survey. |
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