Meller F O, Assunção M C F, Schäfer A A, Loret de Mola C, Dahly D L, Vaz J S, Barros F C
Post-Graduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil.
Department of Epidemiology and Public Health, University College Cork, Cork, Ireland.
PLoS One. 2017 Mar 23;12(3):e0174087. doi: 10.1371/journal.pone.0174087. eCollection 2017.
Our study aimed to estimate the association between number of siblings and dietary patterns in adolescents. Prospective longitudinal study was developed using data from the birth cohort of the city of Pelotas, Brazil, which included 5249 participants. At the 18-year-old follow-up, from 4563 individuals located, 4106 were interviewed (follow-up rate 81.3%). Of these, 3751 were included in our principal component analysis of dietary patterns. Regular dietary intake of 45 food groups over the previous year was measured with a food frequency questionnaire. We identified four patterns, which accounted for 40% of the total variance in food group consumption. These were labeled "Protein and fast food", "Fruit and vegetables", "Common Brazilian", and "Sweets, soft drinks, and dairy products". Crude and adjusted analyses of the association between number of siblings and dietary patterns were performed using linear regression. The number of siblings was positively associated with a higher adherence to each dietary pattern, with the exception of the "Common Brazilian" patterns, for which there was no apparent relationship with number of siblings. The findings showed that a greater number of siblings is related to a more diverse diet in the later adolescence, which may predict better nutrient adequacy and health outcomes.
我们的研究旨在评估青少年的兄弟姐妹数量与饮食模式之间的关联。利用巴西佩洛塔斯市出生队列的数据开展了前瞻性纵向研究，该队列包括5249名参与者。在18岁随访时，在找到的4563名个体中，4106人接受了访谈（随访率81.3%）。其中，3751人纳入了我们饮食模式的主成分分析。通过食物频率问卷测量过去一年45种食物组的常规饮食摄入量。我们识别出四种模式，它们占食物组消费总方差的40%。这些模式分别被标记为“蛋白质和快餐”、“水果和蔬菜”、“常见巴西饮食”以及“甜食、软饮料和乳制品”。使用线性回归对兄弟姐妹数量与饮食模式之间的关联进行了粗分析和校正分析。除了“常见巴西饮食”模式外，兄弟姐妹数量与每种饮食模式的更高依从性呈正相关，而“常见巴西饮食”模式与兄弟姐妹数量之间没有明显关系。研究结果表明，更多的兄弟姐妹与青少年后期更多样化的饮食有关，这可能预示着更好的营养充足性和健康结果。
