Simmons College, 4 Department of Biostatistics, Harvard T.H. Chan School of Public Health, 5 Division of Preventive Medicine, Brigham and Women's Hospital ...
Dietary diversity vs. diet quality scores as measures of healthy and sustainable diet Selma Gicevic MSc1, Audrey J. Gaskins SD1, Teresa T. Fung SD1, 3, Bernard Rosner PhD4, Deirdre K. Tobias SD5, Sheila Isanaka SD1,6 and Walter C. Willett MD DrPH1,2 Department of Nutrition, Harvard T.H. Chan School of Public Health, 2 Department of Epidemiology, Harvard T.H. Chan School of Public Health, 3 Department of Nutrition, Simmons College, 4 Department of Biostatistics, Harvard T.H. Chan School of Public Health, 5 Division of Preventive Medicine, Brigham and Women's Hospital and Harvard Medical School, 6 Department of Global Health and Population 1
METHODS
BACKGROUND AND OBJECTIVES
§ Our prospective cohort study included 21,312 (GDM) and 19,917 (HDP) pregnancies lasting longer than 6 months in the Nurses‘Health Study II (1991-2001).
§ Diet diversity scores (DDS), considered as potential indicators for measuring dietary quality on a global scale, require rigorous evaluation in relation to a range of health outcomes and across different settings.
§ Dietary scores were calculated from food frequency questionnaires collected every four years. Dietary patterns were calculated and converted into quintiles for analysis.
§ DDS include generic, positively scored, food components; as a result, foods associated with adverse cardiometabolic and/or environmental outcomes (e.g. red and processed meat, refined grains, foods containing trans fat, high fat dairy) may also receive positive scores.
§ Multivariable log-binomial regression models were used to estimate risk ratios and 95% confidence intervals. § MDD-W (10 food components) and FGI (8) score one positive point for each consumed component; PDQS food components (14 healthy and 7 unhealthy) score 0-2 points; AHEI-2010 combines 11 healthy and unhealthy nutrient & food components, each scoring 0-10 points (scoring is graded based on the frequency of consumption and is reversed for unhealthy components in PDQS and AHEI-2010).
§ This study evaluated two diet diversity scores, MDD-Wa and FGIb, and two diet quality scores, AHEI-2010c and PDQSd, in relation to gestational diabetes mellitus (GDM) and hypertensive disorders of pregnancy (HDPs).
RESULTS Quintiles of prepregnancy dietary scores and GDM risk MDD-Wa
AHEI-2010c
P-trend=0.88
P-trend
