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Modifiable characteristics associated with sedentary behaviours among youth.
Int J Pediatr Obes. 2008; 3(2):93-101.IJ

Abstract

OBJECTIVE

Childhood overweight and obesity is a major public health issue. A better understanding of factors associated with sedentary behaviours would provide valuable insight for tailoring interventions to prevent or reduce overweight among youth.

METHODS

Data were collected from 25,416 grade 9 to 12 students attending 76 secondary schools in Ontario, Canada, using the Physical Activity Module of the School Health Action, Planning and Evaluation System (SHAPES). Sex specific multivariate logistic regression analyses were then used to examine how physical activity, BMI, social influences, and smoking behaviour were associated with screen time, time spent reading, and time spent on homework.

RESULTS

The average screen time per day was 2.7 (+/-1.7) hours, yet 48.1% of students reported spending less than one hour reading per week and 30.2% spent less than an hour of time on homework per week. Among males, being underweight (< or = 5% percentile BMI, adjusted for age and sex) was associated with more screen time (OR 1.23, 95%CI 1.01-1.50) and time spent reading (OR 1.19, 95%CI 1.00-1.43), whereas being at risk of overweight (> or = 85% percentile BMI, adjusted for age and sex) was associated with less time spent on homework (OR 0.75, 95%CI 0.65-0.85). Conversely, among females, being at risk of overweight was associated with more screen time (OR 1.24, 95%CI 1.10-1.41), and time spent reading (OR 1.19, 95%CI 1.05-1.35). Aside from BMI, other factors associated with sedentary behaviours included physical activity, parental encouragement and support for physical activity, close friend physical activity behaviour, and smoking status.

DISCUSSION

We found that students are highly involved in screen-based sedentary behaviours, but spend a limited time on more productive sedentary behaviours, like reading and homework. Developing a better understanding of sedentary behaviours is critical for preventing and reducing obesity among youth populations.

Authors+Show Affiliations

Division of Preventive Oncology, Cancer Care Ontario, Toronto ON, Canada, M5G 2L7. scott.leatherdale@cancercare.on.caNo affiliation info available

Pub Type(s)

Journal Article
Multicenter Study
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18465435

Citation

Leatherdale, Scott T., and Suzy L. Wong. "Modifiable Characteristics Associated With Sedentary Behaviours Among Youth." International Journal of Pediatric Obesity : IJPO : an Official Journal of the International Association for the Study of Obesity, vol. 3, no. 2, 2008, pp. 93-101.
Leatherdale ST, Wong SL. Modifiable characteristics associated with sedentary behaviours among youth. Int J Pediatr Obes. 2008;3(2):93-101.
Leatherdale, S. T., & Wong, S. L. (2008). Modifiable characteristics associated with sedentary behaviours among youth. International Journal of Pediatric Obesity : IJPO : an Official Journal of the International Association for the Study of Obesity, 3(2), 93-101. https://doi.org/10.1080/17477160701830879
Leatherdale ST, Wong SL. Modifiable Characteristics Associated With Sedentary Behaviours Among Youth. Int J Pediatr Obes. 2008;3(2):93-101. PubMed PMID: 18465435.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Modifiable characteristics associated with sedentary behaviours among youth. AU - Leatherdale,Scott T, AU - Wong,Suzy L, PY - 2008/5/10/pubmed PY - 2008/7/4/medline PY - 2008/5/10/entrez SP - 93 EP - 101 JF - International journal of pediatric obesity : IJPO : an official journal of the International Association for the Study of Obesity JO - Int J Pediatr Obes VL - 3 IS - 2 N2 - OBJECTIVE: Childhood overweight and obesity is a major public health issue. A better understanding of factors associated with sedentary behaviours would provide valuable insight for tailoring interventions to prevent or reduce overweight among youth. METHODS: Data were collected from 25,416 grade 9 to 12 students attending 76 secondary schools in Ontario, Canada, using the Physical Activity Module of the School Health Action, Planning and Evaluation System (SHAPES). Sex specific multivariate logistic regression analyses were then used to examine how physical activity, BMI, social influences, and smoking behaviour were associated with screen time, time spent reading, and time spent on homework. RESULTS: The average screen time per day was 2.7 (+/-1.7) hours, yet 48.1% of students reported spending less than one hour reading per week and 30.2% spent less than an hour of time on homework per week. Among males, being underweight (< or = 5% percentile BMI, adjusted for age and sex) was associated with more screen time (OR 1.23, 95%CI 1.01-1.50) and time spent reading (OR 1.19, 95%CI 1.00-1.43), whereas being at risk of overweight (> or = 85% percentile BMI, adjusted for age and sex) was associated with less time spent on homework (OR 0.75, 95%CI 0.65-0.85). Conversely, among females, being at risk of overweight was associated with more screen time (OR 1.24, 95%CI 1.10-1.41), and time spent reading (OR 1.19, 95%CI 1.05-1.35). Aside from BMI, other factors associated with sedentary behaviours included physical activity, parental encouragement and support for physical activity, close friend physical activity behaviour, and smoking status. DISCUSSION: We found that students are highly involved in screen-based sedentary behaviours, but spend a limited time on more productive sedentary behaviours, like reading and homework. Developing a better understanding of sedentary behaviours is critical for preventing and reducing obesity among youth populations. SN - 1747-7174 UR - https://www.unboundmedicine.com/medline/citation/18465435/Modifiable_characteristics_associated_with_sedentary_behaviours_among_youth_ L2 - https://doi.org/10.1080/17477160701830879 DB - PRIME DP - Unbound Medicine ER -