TY - JOUR T1 - Diet Quality as Assessed by the Healthy Eating Index, Alternate Healthy Eating Index, Dietary Approaches to Stop Hypertension Score, and Health Outcomes: An Updated Systematic Review and Meta-Analysis of Cohort Studies. AU - Schwingshackl,Lukas, AU - Bogensberger,Berit, AU - Hoffmann,Georg, Y1 - 2017/10/27/ PY - 2017/03/20/received PY - 2017/08/16/accepted PY - 2017/11/8/pubmed PY - 2019/9/26/medline PY - 2017/11/8/entrez KW - Alternate Healthy Eating Index KW - Dietary Approaches to Stop Hypertension (DASH) diet KW - Health status KW - Healthy Eating Index KW - Meta-analysis SP - 74 EP - 100.e11 JF - Journal of the Academy of Nutrition and Dietetics JO - J Acad Nutr Diet VL - 118 IS - 1 N2 - BACKGROUND: Diets of the highest quality have been associated with a significantly lower risk of noncommunicable diseases. OBJECTIVE: It was the aim of this study to update a previous systematic review investigating the associations of diet quality as assessed by the Healthy Eating Index (HEI), Alternate Healthy Eating Index (AHEI), and Dietary Approaches to Stop Hypertension (DASH) score and multiple health outcomes. As an additional topic, the associations of these diet quality indices with all-cause mortality and cancer mortality among cancer survivors were also investigated. DESIGN: A literature search for prospective cohort studies that were published up to May 15, 2017 was performed using the electronic databases PubMed, Scopus, and Embase. Summary risk ratios (RRs) and 95% CIs were estimated using a random effects model for high vs low adherence categories. RESULTS: The updated review process showed 34 new reports (total number of reports evaluated=68; including 1,670,179 participants). Diets of the highest quality, as assessed by the HEI, AHEI, and DASH score, resulted in a significant risk reduction for all-cause mortality (RR 0.78, 95% CI 0.77 to 0.80; I2=59%; n=13), cardiovascular disease (incidence or mortality) (RR 0.78, 95% CI 0.76 to 0.80; I2=49%; n=28), cancer (incidence or mortality) (RR 0.84, 95% CI 0.82 to 0.87; I2=66%; n=31), type 2 diabetes (RR 0.82, 95% CI 0.78 to 0.85; I2=72%; n=10), and neurodegenerative diseases (RR 0.85, 95% CI 0.74 to 0.98; I2=51%; n=5). Among cancer survivors, the association between diets for the highest quality resulted in a significant reduction in all-cause mortality (RR 0.88, 95% CI 0.81 to 0.95; I2=38%; n=7) and cancer mortality (RR 0.90, 95% CI 0.83 to 0.98; I2=0%; n=7). CONCLUSIONS: In the updated meta-analyses, diets that score highly on the HEI, AHEI, and DASH were associated with a significant reduction in the risk of all-cause mortality, cardiovascular disease, cancer, type 2 diabetes, and neurodegenerative disease by 22%, 22%, 16%, 18%, and 15%, respectively. Moreover, high-quality diets were inversely associated with overall mortality and cancer mortality among cancer survivors. SN - 2212-2672 UR - https://www.unboundmedicine.com/medline/citation/29111090/Diet_Quality_as_Assessed_by_the_Healthy_Eating_Index_Alternate_Healthy_Eating_Index_Dietary_Approaches_to_Stop_Hypertension_Score_and_Health_Outcomes:_An_Updated_Systematic_Review_and_Meta_Analysis_of_Cohort_Studies_ DB - PRIME DP - Unbound Medicine ER -