The Relationship between Media Use and Body Mass Index among Secondary Students in Kuching South City, Sarawak, Malaysia
- Author:
Whye Lian Cheah
;
Ching Thon Chang
;
Saimon Rosalia
;
Lai Dekun Charles
;
Sze Lin Yii
;
Pik Hoong Tiong
;
Kim Pey Yeap
- Publication Type:Journal Article
- Keywords:
adolescent, behaviour, body mass index, public health, urban population
- From:Malaysian Journal of Medical Sciences
2011;18(3):33-42
- CountryMalaysia
- Language:English
-
Abstract:
Background: Overweight and obesity rates among adolescents have increased substantially
over the years. This study aimed to determine the body mass index (BMI) of students and parents
and the relationship among media use, BMI, socio-demographic profiles, and snacking behaviour
during television watching of secondary school students in Kuching South City.
Methods: In accordance with the two-stage sampling method, a total of 316 adolescents aged
13–17 years from 7 secondary schools participated. Data were collected using questionnaire and
anthropometric measurement. Independent t test, one-way ANOVA, Mann–Whitney U test, and chisquare
test were performed.
Results: The mean BMI was 20.56 kg/m2 (SD 4.33) for boys and 20.15 kg/m2 (SD 3.91) for
girls. No significant difference in terms of z score for BMI-for-age or socio-demographic factors was
found. The mean duration of time devoted to media use was 4.69 hours (SD 2.93) on weekdays and
5.69 hours (SD 2.87) on weekends. Boys were found to spend more hours on media use than did the
girls (t = 4.293, P < 0.01). Respondents were reported to consume more cereal compared with soft
drinks and junk foods. Respondents whose fathers worked in the private sector devoted the fewest
hours to media use, whereas those with self-employed fathers devoted the most time to media use.
Respondents with mothers who were employed spent more time on media use than did respondents
whose mothers were housewives (F = 4.067, P < 0.01). No significant difference was found between
BMI and media time or snacking habits.
Conclusion: This finding indicated that media time has no effect on body weight, because
respondents were found to have normal weight and to consume less unhealthy food.
- Full text:W020151022583624252756.pdf
