Associations between a posteriori defined dietary patterns and bone mineral density in adolescents

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Teresa Monjardino (Author) Other; Raquel Lucas (Author) Other; Elisabete Ramos (Author) Other; Carla Lopes (Author) Other; Rita Gaio (Author) FCUP; Henrique Barros (Author) Other

Journal

Title: European Journal of Nutrition

Vol. 54

Pages: 273-282

ISSN: 1436-6207

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 12 Citations

Scopus - 12 Citations

Other information

Authenticus ID: P-00A-28E

DOI: 10.1007/s00394-014-0708-x

Abstract (EN): Dietary pattern analysis may uncover the joint effects of multiple dietary components on bone health, but such research is scarce and targets mostly adults. We quantified prospective associations between dietary patterns and bone mineral density (BMD) in 1,007 adolescents of a cohort born in 1990 and recruited at schools in Porto during the 2003/2004 school year. Forearm BMD was measured using dual-energy X-ray absorptiometry. Participants' dietary patterns were classified "Healthier", "Dairy products", "Fast food and sweets" and "Lower intake" according to previously identified patterns obtained in a larger sample of 1,489 participants using the K-means method. Using dietary patterns at 13 years old as the main exposure, associations were estimated cross-sectionally (with BMD at the age of 13) and prospectively (with annual BMD variation between 13 and 17 years), using linear regression coefficients adjusted for height, weight, energy intake and, in girls, for menarche age. No significant associations between the a posteriori dietary patterns identified and mean BMD at 13 were found. However, among girls, adherence to a pattern characterized by low intake of energy and all food groups was negatively associated with annual BMD variation between 13 and 17 years [adjusted coefficient (95 % CI) -0.451 (-0.827; -0.074) mg center dot cm(-2)center dot year(-1)]. Although results showed that, in girls, adherence to a "Lower intake" dietary pattern is associated with lower annual BMD variation throughout adolescence, overall, there were no consistent associations between dietary patterns and forearm BMD in adolescents.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10