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Associations of the infancy body mass index peak with anthropometry and cardiometabolic risk in Mexican adolescents.

ABSTRACT: BACKGROUND:Early-life growth dynamics are associated with future health. Little is known regarding timing and magnitude of the infancy body mass index (BMI) peak with adiposity and metabolic biomarkers during adolescence. AIM:To examine associations of the infancy BMI peak with anthropometry and cardiometabolic risk during peripuberty. METHODS:Among 163 ELEMENT participants, this study estimated age and magnitude of the infancy BMI peak from eight anthropometric measurements from birth-36?months using Newton's Growth Models, an acceleration-based process model. Associations were examined of the infancy milestones with anthropometry and cardiometabolic risk at 8-14?years using linear regression models that accounted for maternal calcium supplementation and age; child's birthweight, sex, and age; and the other infancy milestone. RESULTS:Median age at the infancy BMI peak was 9.6?months, and median peak BMI was 16.5?kg/m2. Later age and larger magnitude of the peak predicted higher BMI z-score, waist circumference, and skinfold thicknesses; i.e. each 1?month of age at peak and each 1?kg/m2 of peak BMI corresponded with 0.04 (0.01-0.07) and 0.33 (0.17-0.48) units of higher BMI z-score, respectively. Later age at peak was also a determinant of worse glycaemia and higher blood pressure. CONCLUSION:Later age and larger magnitude of the infancy BMI peak are associated with higher adiposity at 8-14?years of age. Later age but not magnitude of the BMI peak are related to a worse cardiometabolic profile during peripuberty.

SUBMITTER: Perng W

PROVIDER: S-EPMC6377326 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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Associations of the infancy body mass index peak with anthropometry and cardiometabolic risk in Mexican adolescents.

Perng Wei W Baek Jonggyu J Zhou Christina W CW Cantoral Alejandra A Tellez-Rojo Maria Martha MM Song Peter X K PXK Peterson Karen E KE

Annals of human biology 20180801 5

<h4>Background</h4>Early-life growth dynamics are associated with future health. Little is known regarding timing and magnitude of the infancy body mass index (BMI) peak with adiposity and metabolic biomarkers during adolescence.<h4>Aim</h4>To examine associations of the infancy BMI peak with anthropometry and cardiometabolic risk during peripuberty.<h4>Methods</h4>Among 163 ELEMENT participants, this study estimated age and magnitude of the infancy BMI peak from eight anthropometric measurement ...[more]

PMID: 30328713

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Project description:BackgroundBody image is known as an important factor affecting different aspects of adolescents' health; however, its relationship with lifestyle, body mass index (BMI), and health-related quality of life (HRQoL) in Iranian adolescents has not been addressed in a conceptual model.ObjectivesThis study aimed to investigate the network associations among body image, lifestyle, BMI, and HRQoL in adolescent boys and girls.MethodsThe present study examined 760 adolescents (15 - 18 years) from Tehran. Adolescents reported their weight and height, according to which the participants' BMIs were calculated. The adolescents' body image, lifestyle, and HRQoL were assessed using a set of questionnaires, including the Body Image Scale for Youth (BISY), Modifiable Activity Questionnaire (MAQ), Eating Habits Checklist, Eating Attitudes Test (EAT-26), and Pediatric Quality of Life Inventory (PedsQLTM).ResultsThe participants' mean age and BMI were 16.5 ± 1.0 years and 22.4 ± 4.6 kg/m2, respectively. More than one-third of boys (39.9%) and less than a quarter of girls (22.6%) were overweight/obese. In the final model, body image was significantly and directly associated with physical activity, disordered eating, eating habits, and HRQoL in both genders (P < 0.05). Moreover, body image was directly correlated with screen time in boys (P = 0.012) and BMI in girls (P = 0.001). Body image was indirectly correlated with BMI by the mediating role of disordered eating in girls. Moreover, body image was indirectly associated with HRQoL by the mediating role of physical activity and eating habits in both genders and screen time only in boys.ConclusionsThe network associations among body image, lifestyle, BMI, and HRQoL revealed a gender-specific pattern among the study population. Body image was a significant determinant of lifestyle and HRQoL in both genders and excessive weight in girls. The present findings would contribute to designing and implementing relevant health promotion interventions.

Project description:BackgroundObesity is rapidly increasing in Mexican children and adolescents, while food environments are rapidly changing. We evaluated the association between changes in retail food stores and change in body mass index (BMI) in Mexican children and adolescents.MethodsData on 7507 participants aged 5-19 years old came from the Mexican Family Life Survey 2002-2012. Density of food stores at the municipal-level (number of food stores/area in km2) came from the Economic Censuses of 1999, 2004 and 2009. We categorized food stores as small food retail (small neighborhood stores, tiendas de abarrotes in Mexico), specialty foods, fruit/vegetables, convenience foods, and supermarkets. Associations between change in food stores and change in BMI were estimated using five longitudinal linear fixed-effects regression models (one per type of food store) adjusted for age, parental education, municipal-level socioeconomic deprivation and population density. Density of each food store type was operationalized as quartiles. Analyses were stratified by urbanization.ResultsThere was an inverse dose-response association between increases in fruit/vegetable store density and BMI (β = -0.455 kg/m2, β = -0.733 kg/m2, and β = -0.838 kg/m2 in the second, third, and fourth quartile). In non-urban areas, children living in municipalities with the highest density of small food retail stores experienced a reduction in BMI (β = -0.840 kg/m2). In urban areas, there was an inverse association between specialty food stores with BMI (β = -0.789 kg/m2 in third quartile, and β = -1.204 kg/m2 in fourth quartile). We observed dynamic associations with age; results suggested stronger associations in adolescents.ConclusionsThe availability of fruit/vegetable stores may influence a reduction in children and adolescents BMI. These results indicate that policy approaches could be tailored by type of food store - with some consideration for level of urbanization and children's age.

Dataset Information

Associations of the infancy body mass index peak with anthropometry and cardiometabolic risk in Mexican adolescents.

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Associations of the infancy body mass index peak with anthropometry and cardiometabolic risk in Mexican adolescents.

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