A Count Model to Study the Correlates of 60 Min of Daily Physical Activity in Portuguese Children
Abstract
:1. Introduction
2. Materials and Methods
2.1. Sample
2.2. Study Location Socio-Demographic Characteristics
2.3. Anthropometry
2.4. Maturity Offset
2.5. Physical Activity
2.6. Neighborhood and Home Environment Questionnaire
2.7. Lifestyle Questionnaire
2.8. Statistical Analysis
3. Results
Variable | Boys (M ± SD) | Girls (M ± SD) | t | p-Value | Total (M ± SD) |
---|---|---|---|---|---|
Height (cm) | 143.5 ± 6.4 | 143.5 ± 7.1 | 0.060 | 0.952 | 143.5 ± 6.8 |
Weight (kg) | 40.5 ± 9.2 | 40.3 ± 9.2 | −0.332 | 0.740 | 40.4 ± 9.2 |
BMI (kg·m−2) | 19.5 ± 3.5 | 19.4 ± 3.4 | −0.511 | 0.610 | 19.5 ± 3.4 |
Maturity offset | −2.7 ± 0.4 | −1.2 ± 0.5 | 41.028 | <0.001 | −1.9 ± 0.89 |
Factors | Frequency (%) or Mean |
---|---|
Annual income | |
≤€6000 | 15.0 |
€6000–€11,999 | 28.0 |
€12,000–€17,999 | 26.5 |
€18,000–€23,999 | 13.3 |
€24,000–€29,999 | 6.1 |
€30,000–€35,999 | 4.2 |
€36,000–€41,999 | 2.6 |
≥€42,000 | 4.2 |
Family support | |
Encourage | |
Never | 4.7 |
1–2 days | 23.0 |
3–4 days | 19.8 |
5–6 days | 10.6 |
Every day | 41.8 |
Provide transport | |
Never | 20.4 |
1–2 days | 43.0 |
3–4 days | 20.6 |
5–6 days | 5.0 |
Every day | 11.1 |
I can ask my parent to do physically active things with me | |
Disagree a lot | 13.7 |
Disagree a little | 12.8 |
Disagree/agree | 22.6 |
Agree a little | 21.4 |
Agree a lot | 29.4 |
Time to walk from home to | |
Indoor recreation | |
1–5 min | 12.0 |
6–10 min | 21.3 |
11–20 min | 25.2 |
21–30 min | 16.3 |
>30 min | 11.7 |
Don’t know | 13.6 |
Bike/walking trail | |
1–5 min | 12.5 |
6–10 min | 12.1 |
11–20 min | 14.4 |
21–30 min | 15.6 |
>30 min | 18.7 |
Don’t know | 26.7 |
Playing fields/courts | |
1–5 min | 10.2 |
6–10 min | 14.1 |
11–20 min | 22.6 |
21–30 min | 18.5 |
>30 min | 13.8 |
Don’t know | 20.7 |
Public parks | |
1–5 min | 10.5 |
6–10 min | 18.1 |
11–20 min | 25.9 |
21–30 min | 16.5 |
>30 min | 15.9 |
Don’t know | 13.1 |
There is a high crime rate in the neighborhood | |
Strongly disagree | 43.4 |
Somewhat disagree | 39.2 |
Somewhat agree | 12.8 |
Strongly agree | 4.5 |
Time spent outside | |
Week days | |
<1 h | 39.7 |
1 h | 32.8 |
2 h | 20.3 |
3 h | 5.7 |
4 h | 0.6 |
5 or more | 1.0 |
Weekend | |
<1 h | 30.3 |
1 h | 23.3 |
2 h | 21.7 |
3 h | 12.7 |
4 h | 5.0 |
5 or more | 7.0 |
Screen time | |
Week days | |
≤2 h | 73.6 |
>2 h | 26.4 |
Weekend | |
≤2 h | 36.2 |
>2 h | 63.8 |
Sleep time (minutes (M ± SD)) | |
Week days | 517.2 ± 54.7 |
Weekend Days | 562.8 ± 78.4 |
Variables | Beta (SE) | p-Value | RR | 95% RR CI |
---|---|---|---|---|
Intercept | 0.907 (0.063) | <0.001 | 2.278 | 2.189 to 2.806 |
Sex | 0.734 (0.048) | <0.001 | 2.083 | 1.895 to 2.291 |
BMI | −0.122 (0.046) | <0.001 | 0.927 | 0.901 to 0.954 |
AI | −0.075 (0.014) | <0.001 | 0.959 | 0.925 to 0.996 |
TIR | −0.043 (0.015) | 0.004 | 0.957 | 0.928 to 0.986 |
SW | −0.152 (0.043) | <0.001 | 0.858 | 0.788 to 0.934 |
SSW | 0.118 (0.052) | 0.024 | 1.125 | 1.015 to 1.248 |
4. Discussion
5. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Borges, A.; Gomes, T.N.; Santos, D.; Pereira, S.; Santos, F.K.d.; Chaves, R.; Katzmarzyk, P.T.; Maia, J. A Count Model to Study the Correlates of 60 Min of Daily Physical Activity in Portuguese Children. Int. J. Environ. Res. Public Health 2015, 12, 2557-2573. https://doi.org/10.3390/ijerph120302557
Borges A, Gomes TN, Santos D, Pereira S, Santos FKd, Chaves R, Katzmarzyk PT, Maia J. A Count Model to Study the Correlates of 60 Min of Daily Physical Activity in Portuguese Children. International Journal of Environmental Research and Public Health. 2015; 12(3):2557-2573. https://doi.org/10.3390/ijerph120302557
Chicago/Turabian StyleBorges, Alessandra, Thayse Natacha Gomes, Daniel Santos, Sara Pereira, Fernanda K. dos Santos, Raquel Chaves, Peter T. Katzmarzyk, and José Maia. 2015. "A Count Model to Study the Correlates of 60 Min of Daily Physical Activity in Portuguese Children" International Journal of Environmental Research and Public Health 12, no. 3: 2557-2573. https://doi.org/10.3390/ijerph120302557