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Assessment of dietary quality in American adults and its association with sociodemographic and metabolic syndrome-related biomarkers: Comparison of two samples from Midlife in the United States (MIDUS) study (Preprint)
- Publication Year :
- 2022
- Publisher :
- JMIR Publications Inc., 2022.
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Abstract
- BACKGROUND An unhealthy diet ranks among the top contributors to the burden of noncommunicable chronic disease and death in the US, highlighting the importance of evaluating diet quality in population-based studies, such as the MIDUS (Midlife in the United States) cohort. OBJECTIVE 1) To develop a simple tool (MIDUS healthy eating index (MIDUS-HEI)) to evaluate diet quality more broadly and consistently in subjects enrolled at different time points of the MIDUS study, and 2) To use this score in assessing the cross-sectional association of the overall dietary pattern with sociodemographic and health variables in MIDUS participants. METHODS We used extant food intake data collected from participants in two biomarker sub-studies of the MIDUS Core and Refresher national samples to design, test, and validate the dietary score tool through its cross-sectional association with available sociodemographic and health variables. RESULTS Our results indicated that better dietary quality was observed among older adults as well as white subjects and those with a higher educational status. According to the MIDUS-HEI score, dietary quality improved over time in MIDUS Refresher cohort compared to the MIDUS Core cohort. However, race-based disparities in dietary quality increased between the two survey times. Regarding health variables, MIDUS-HEI score was inversely associated with the prevalence of metabolic syndrome (MetS) and most of its diagnostic criteria. CONCLUSIONS The MIDUS-HEI score is a useful indicator of quality of diet intake, exhibiting an inverse cross-sectional association with unhealthy diet-related biomarkers and MetS. Also, sociodemographic-dependent variations of this index were consistent with similar dietary pattern scores evident in other epidemiological studies. Thus, MIDUS-HEI represents a valuable tool for further analysis and discovery using the wide multidisciplinary scope of MIDUS.
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi...........0b7899cca14f380527638f0685bcb4e5