• Mehmet Enes Gokler, Necati Bugrul, Ahu Ozturk Sarı, and Selma Metintas.
• Department of Public Health, Medical Faculty, Eskisehir Osmangazi University, Eskisehir, Turkey.
• Arch Med Sci. 2018 Jan 1; 14 (1): 174181174-181.

IntroductionThe objective was to assess the validity of self-reported body weight and height and the possible influence of self-perception of body mass index (BMI) status on the actual BMI during the adolescent period.Material And MethodsThis cross sectional study was conducted on 3918 high school students. Accurate BMI perception occurred when the student's self-perception of their BMI status did not differ from their actual BMI based on measured height and weight. Agreement between the measured and self-reported body height and weight and BMI values was determined using the Bland-Altman metod. To determine the effects of "a good level of agreement", hierarchical logistic regression models were used.ResultsAmong male students who reported their BMI in the normal region, 2.8% were measured as overweight while 0.6% of them were measured as obese. For females in the same group, these percentages were 1.3% and 0.4% respectively. Among male students who perceived their BMI in the normal region, 8.5% were measured as overweight while 0.4% of them were measured as obese. For females these percentages were 25.6% and 1.8% respectively. According to logistic regression analysis, residence and accurate BMI perception were significantly associated with "good agreement" (p ≤ 0.001).ConclusionsThe results of this study demonstrated that in determining obesity and overweight statuses, non-accurate weight perception is a potential risk for students.

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