Assessment of overweight and obesity in Iranian adolescents: optimal cut-off values of anthropometric indices

Motlagh, Mohammad Esmaeil; Shirvani, Seiyed Davoud Nasrollahpour; Hassanzadeh-Rostami, Zahra; Taheri, Majzoubeh; Ghadimi, Reza

doi:10.26719/emhj.18.016

Cited by 2 publications

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“…WHR did not perform well in the estimation of body fat, as in other study that showed that BMI and WC correlated with BF% in Swedish adolescents of both sexes, while WHR did not correlate well (47) . Similar to Motlagh et al (38) who assessed 2444 adolescents aged from 12 to 14 years and observed that WC and WtHR show higher AUC than WHR in predicting overweight and obesity.…”

Section: Discussionsupporting

confidence: 69%

“…Therefore, the assessment of body composition is necessary, and the identification of more accurate adiposity indices for estimating body fat and the determination of cut-off points for these indices, in this age group, are important to expand the methods of assessment and monitoring of overweight and obesity. These strategies are essential for disease prevention and health promotion in the adolescent population (38,39) . Therefore, BMI should be used with caution, especially in adolescents, since during the growth spurt, this index may not reliably reflect increases in body fat.…”

Section: Discussionmentioning

confidence: 99%

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Predictive capacity and cut-off points of adiposity indices for body fat prediction according to adolescent periods

et al. 2021

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Overweight is increasing in the adolescent population, being a public health problem in the world. This study aimed to identify the body adiposity indices with the best capacity to predict excess fat tissue and propose cutoff points for them, according to sex and adolescence period. This is a cross-sectional study. We calculated Body Mass Index (BMI), Conicity Index (CI), Body Adiposity Index (BAI), Body Roundness Index (BRI), Waist-to-Height Ratio (WtHR) and Waist-Hip Ratio (WHR). Predictive capacity and cutoff points of adiposity indices were established by ROC (Receiver Operating Characteristic) curves. We determined areas under the ROC curves and confidence intervals, stratified by sex and adolescence period. The best index to identify excess body fat in 10 to 13 years old female adolescents was the WtHR (AUC=0.92), like the BAI in girls aged from 14 to 16 years old (AUC=0.87) and 17 to 19 years old (AUC=0.80). In male adolescents aged from 10 to 13 years old and 14 to 16 years old, the best index was the WtHR (AUC=0.93 and AUC=0.8, respectively), like the BAI in boys aged from 17 to 19 years old (AUC=0.95). The use of indices with specific cutoff points for each period of adolescence and according to sex is important for the reliable diagnosis of excess body fat. It is advisable to use indices together to obtain a more accurate assessment. Thus, the WtHR and BAI are reproducible and reliable, with high sensitivity and specificity values and can be used together with the BMI.

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Section: Discussionsupporting

confidence: 69%

Section: Discussionmentioning

confidence: 99%

Predictive capacity and cut-off points of adiposity indices for body fat prediction according to adolescent periods

et al. 2021

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“…There is fair coverage in the matter of breakfast among Iranian studies although not all of them related to the subject of the present study. These studies indicated that 90% of children in one study (15) and 80% of children in other studies (16,17) had breakfast before going to school. Conversely, the professionals should be concerned about what would happen for the other 10% -20% of children who did not have their breakfast.…”

Section: Introductionmentioning

confidence: 86%

Effect of Breakfast Consumption on Verbal Fluency and Verbal Working Memory Performance in Seven-Year-Old Children

Bakhtiyari

Shadnoush

Dadgar

et al. 2020

Middle East J Rehabil Health Stud

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Background: Studies have indicated that failure to eat breakfast did not affect children's performance in general cognitive tests; however, skipping breakfast might have effects on the specific aspects of cognition such as memory. Hypothetically, language as a higher cognitive function may be influenced by breakfast consumption routines. Objectives: This study aimed to compare students' verbal fluency and working memory according to their breakfast routines. Methods: We selected 60 seven-year-old children from three primary schools in the central regions of Tehran in 2017. Their parents were invited to a structured interview to fill out questionnaires consisting of information related to the child, parent, and breakfast routines. Based on the family's breakfast habits, two groups were identified: Group 1 with a full, regular breakfast routine and Group 2 with no breakfast or incomplete breakfast routine. An experienced speech therapist administered the verbal fluency task (phonemic and semantic fluency) and verbal working memory task (forward and backward digit numbers) for each student. Results: The mean scores of students with a full breakfast routine on verbal fluency tasks were at least three units more than those of students without breakfast. These differences were all significant (P = 0.001). In working memory tasks, students with a full breakfast routine had seven digits and one digit in their responses more than students without breakfast in forward and backward digit tasks, in sequence. These differences were significant (P = 0.001). Conclusions:The findings of the present study provide information on the positive effects of a regular breakfast routine on the specific cognitive functions related to language processing. Patient Consent:A pack of information sheet and consent form was sent off to the schools' principals. Then they allowed the researcher to contact family through their health advisors. All the parents were invited to a meeting at the school halls to be informed about the study and its possible consequences. At the end of the meetings, a second pack including information sheet and consent form written in simple language was passed to the families. They had three working days to decide about contribution. At the end, only 60 signed consent forms were returned.

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Assessment of overweight and obesity in Iranian adolescents: optimal cut-off values of anthropometric indices

Cited by 2 publications

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Predictive capacity and cut-off points of adiposity indices for body fat prediction according to adolescent periods

Predictive capacity and cut-off points of adiposity indices for body fat prediction according to adolescent periods

Effect of Breakfast Consumption on Verbal Fluency and Verbal Working Memory Performance in Seven-Year-Old Children

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