|
Associations between school physical activity provision and prevalence of overweighta at baseline and follow-up |
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| Males |
Females |
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|
|
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| % (n/N) |
PRb |
95% CI |
PRc |
95% CI |
% (n/N) |
PRc |
95% CI |
PRb |
95% CI |
|
|
|
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| Baseline |
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| Overweight/Obese |
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| Primary School |
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| Low PA School |
14 (51/371) |
1.0 |
Ref |
1.0 |
Ref |
12 (48/417) |
1.0 |
Ref |
1.0 |
Ref |
| Med PA School |
10 (48/460) |
0.76 |
(0.52–1.11) |
0.80 |
(0.57–1.12) |
13 (60/455) |
1.15 |
(0.81–1.61) |
1.14 |
(0.80–1.62) |
| High PA School |
11 (53/503) |
0.77 |
(0.55–1.06) |
0.77 |
(0.56–1.07) |
13 (59/472) |
1.09 |
(0.80–1.48) |
1.10 |
(0.83–1.47) |
| ptrend |
0.13 |
0.14 |
0.62 |
0.51 |
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| Secondary School |
||||||||||
| Low PA School |
9 (40/440) |
1.0 |
Ref |
1.0 |
Ref |
12 (51/442) |
1.0 |
Ref |
1.0 |
Ref |
| Med PA School |
11 (55/485) |
1.25 |
(0.78–1.99) |
1.27 |
(0.86–1.88) |
13 (57/456) |
1.08 |
(0.72–1.63) |
1.15 |
(0.80–1.65) |
| High PA School |
11 (68/622) |
1.20 |
(0.82–1.76) |
1.14 |
(0.79–1.64) |
13 (69/532) |
1.12 |
(0.80–1.59) |
1.15 |
(0.81–1.64) |
| ptrend |
0.39 |
0.59 |
0.50 |
0.44 |
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| Follow-Up |
||||||||||
| Overweight/Obese |
||||||||||
| Low PA School |
59 (123/208) |
1.0 |
Ref |
1.0 |
Ref |
39 (92/239) |
1.0 |
Ref |
1.0 |
Ref |
| Med PA School |
66 (169/254) |
1.13 |
(0.97–1.30) |
1.10 |
(0.97–1.25) |
38 (96/250) |
1.00 |
(0.78–1.28) |
0.98 |
(0.79–1.22) |
| High PA School |
63 (182/288) |
1.07 |
(0.93–1.23) |
1.08 |
(0.95–1.23) |
41 (110/270) |
1.06 |
(0.83–1.34) |
1.04 |
(0.84–1.28) |
| ptrend |
0.46 |
0.33 |
0.63 |
0.63 |
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|
a Overweight at baseline defined as a BMI equal to or greater than international age- and sex-specific cutpoints for overweight; overweight at follow-up defined as a BMI≥25 kg/m2. b PR: prevalence ratios adjusted for the effects of clustering by school. c PR: prevalence ratios adjusted for the effects of clustering by school plus baseline area-level SES, baseline smoking, baseline parental physical activity; follow-up associations also adjusted for highest level of education, smoking at follow-up, marital status at follow-up and number of live births at follow-up (females only). | ||||||||||
Cleland et al. International Journal of Behavioral Nutrition and Physical Activity 2008 5:14 doi:10.1186/1479-5868-5-14 |
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