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En komparativ tvärsnittsstudie
The aim of this study is to investigate the prevalence of computer consumption among boys in ninth grade, and to see if there were any differences with regards to physical activity, sleeping habits, breakfast habits and BMI. The study has cross sectional design with a comparative and a quantitative structure and is based on a former study called ?Food & Health 2007?. The respondents were represented by 181 boys in ninth grade, recruited from ten different schools in the county of Uppsala, who were answering questions about media consumption, breakfast habits, physical activity and sleeping habits. Daily computer consumption was reported up to one hour for 12 % of the respondents, one to three hours for 65 % and over three hours for 42 %. The boys who had a high physical activity level were less frequent in computer consumption while those who had a low physical activity level spent more time by the computer. The boys who were high computer consumers showed either a high or low level of physical activity, while the boys who were low computer consumers were presented mainly by boys with a high activity level. BMI increased in relation to increasing computer consumption and in relation to less prevalence of physical activity. The boys with high computer consumption had a higher BMI than the low consumers and involve a risk of decreased general health. Further studies are required to confirm the results and to find out the causes for the differences, and to give a foundation for further work against overweight, obesity and decreasing level of physical activity among children and adolescents.