| Keywords |
Physical activity ; Sedentary behavior ; Dietary behavior ; Korean adolescent ; 2008 KYRBWS |
| Abstract |
A web-based survey has been administered annually since 2005 throughout Korea to assess the prevalence of adolescent health risk behaviors among middle and high school student. The aim of this study was to analyse the patterns and the interrelationships for meeting guideline of physical activity (PA), sedentary behavior (SB), and dietary behavior (DB) based on the Korea Youth Risk Behavior Web-based survey (KYRBWS) 2008 data. A cross-sectional design was used to assess 49,110 middle-high school students. PA (moderate PA≥5 times/week, or vigorous≥3 times/week) SB (watching TV, computer, DVD, video, etc.∠3 hours/day), and DB (serving of fruits≥1 time/day, or vegetables≥3 times/day) were categorized into level of meeting guidelines or not. Adolescents meeting guidelines for PA, SB, and DB were 54.7% (boys 66.9%, girls 41.1%), 84.4% (boys 87.4%, girls 83.0%), and 72.6% (boys 73.2%, girls 72.0%), respectively. In addition, there were significant differences between both genders for PA (p<0.001), SB (p<0.001) and DB (p<0.01). Only 6.9% of students met all three guidelines and 13.0% did not meet all three. Students who did not meet PA were at greater fisk of not meeting SB (boys; OR 1.04, 95% CI 0.96 to 1.12, girls; OR 1.14, 95% CI 1.07 to 1.22) and DB (boys; OR 1.74, 95% CI 1.65 to 1.85, girls; OR 1.53, 95% CI 1.44 to 1.62) compared with students who met PA. The findings of this study support not an independent behavior approach but a multiple behavior approach taking into account gender and interrelationship among the physical, sedentary and dietary behaviors. |