SAMRC/Wits Developmental Pathways for Health Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 1862, South Africa.
School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO17 1BJ, UK.
Nutrients. 2023 Feb 21;15(5):1075. doi: 10.3390/nu15051075.
We set out to evaluate the association between nutrient patterns and general adiposity in black South African adolescents and adults and to determine whether the interactions are longitudinally sustained over 24 months.
Principal Component Analysis (PCA) was used to derive the nutrient patterns of 750 participants (250 adolescents between 13 and 17 years old and 500 adults who were 27 years or 45 years old). PCA was applied to 25 nutrients, computed from the quantified food frequency questionnaire (QFFQ) over a 24 months period.
The nutrient patterns between adolescents and adults were similar over time; however, their associations with BMI were different. Among the adolescents, only the "plant-driven nutrients pattern" was significantly associated with a 0.56% (95% CI (0.33; 0.78); < 0.001) increase in BMI. Among the adults, the "plant-driven nutrient pattern" (0.43% (95% CI (0.03; 0.85); < 0.001) and the "fat-driven nutrients pattern" (0.18% (95% CI (0.06; 0.29); < 0.001) were significantly associated with a BMI increase. Furthermore, the "plant-driven nutrient pattern", "fat-driven nutrient pattern" and the animal-driven nutrient pattern revealed sex differences in their association with BMI.
Urban adolescents and adults had consistent nutrient patterns, but their BMI relationships changed with age and gender, an important finding for future nutrition interventions.
我们旨在评估黑种南非青少年和成年人的营养模式与总体肥胖之间的关系,并确定这些相互作用是否在 24 个月的时间内保持纵向稳定。
主成分分析(PCA)用于得出 750 名参与者(250 名 13 至 17 岁的青少年和 500 名 27 岁或 45 岁的成年人)的营养模式。PCA 应用于从 24 个月的定量食物频率问卷(QFFQ)计算得出的 25 种营养素。
青少年和成年人之间的营养模式随时间相似;然而,它们与 BMI 的关联不同。在青少年中,只有“植物驱动的营养模式”与 BMI 增加 0.56%(95%CI(0.33;0.78);<0.001)显著相关。在成年人中,“植物驱动的营养模式”(0.43%(95%CI(0.03;0.85);<0.001)和“脂肪驱动的营养模式”(0.18%(95%CI(0.06;0.29);<0.001)与 BMI 增加显著相关。此外,“植物驱动的营养模式”、“脂肪驱动的营养模式”和动物驱动的营养模式揭示了它们与 BMI 之间的性别差异。
城市青少年和成年人的营养模式一致,但他们的 BMI 关系随年龄和性别而变化,这是未来营养干预的一个重要发现。