Dataset Information

Prospective Study of Dietary Patterns and Hearing Threshold Elevation.

ABSTRACT: We conducted a prospective study of dietary patterns and longitudinal change in audiometric hearing thresholds among 3,135 women (mean age = 59 years) in the Nurses' Health Study II (2012-2018). Diet adherence scores for the Dietary Approaches to Stop Hypertension (DASH) and Alternate Mediterranean (AMED) diets and the Alternate Healthy Eating Index 2010 (AHEI-2010) were calculated using validated food-frequency questionnaires. Baseline and 3-year follow-up hearing sensitivities were assessed by pure-tone audiometry at 19 US sites. We used multivariable-adjusted logistic regression models to examine independent associations between diet adherence scores and risk of ?5 dB elevation in the pure-tone average (PTA) of low-frequency (LPTA0.5,1,2 kHz), mid-frequency (MPTA3,4 kHz), and high-frequency (HPTA6,8 kHz) hearing thresholds. Higher adherence scores were associated with lower risk of hearing loss. Compared with the lowest quintile of DASH score, the multivariable-adjusted odds ratios for mid-frequency and high-frequency threshold elevation in the highest quintile were 0.71 (95% confidence interval (CI): 0.55, 0.92; P for trend = 0.003) and 0.75 (95% CI: 0.59, 0.96; P for trend = 0.02); for AMED and AHEI scores, for mid-frequency threshold elevation, they were 0.77 (95% CI: 0.60, 0.99; P for trend = 0.02) and 0.72 (95% CI: 0.57, 0.92; P for trend = 0.002). Nonsignificant inverse associations were observed for high-frequency threshold elevation. There were no significant associations between adherence scores and low-frequency threshold elevation. Our findings indicate that eating a healthy diet might reduce the risk of acquired hearing loss.

SUBMITTER: Curhan SG

PROVIDER: S-EPMC7217280 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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Prospective Study of Dietary Patterns and Hearing Threshold Elevation.

Curhan Sharon G SG Halpin Christopher C Wang Molin M Eavey Roland D RD Curhan Gary C GC

American journal of epidemiology 20200301 3

We conducted a prospective study of dietary patterns and longitudinal change in audiometric hearing thresholds among 3,135 women (mean age = 59 years) in the Nurses' Health Study II (2012-2018). Diet adherence scores for the Dietary Approaches to Stop Hypertension (DASH) and Alternate Mediterranean (AMED) diets and the Alternate Healthy Eating Index 2010 (AHEI-2010) were calculated using validated food-frequency questionnaires. Baseline and 3-year follow-up hearing sensitivities were assessed by ...[more]

PMID: 31608356

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Project description:BackgroundAdherence to alternate Healthy Eating Index (AHEI), alternate Mediterranean diet (AMED), and Dietary Approaches to Stop Hypertension (DASH) has been linked to lower risks of chronic diseases. However, their associations with common pregnancy complications are unclear.ObjectivesThis study investigates the associations of AHEI, AMED, and DASH during periconception and pregnancy with common pregnancy complication risks.MethodsThe study included 1887 pregnant women from the Eunice Kennedy Shriver National Institute of Child Health and Human Development Fetal Growth Studies-Singletons. Women responded to an FFQ at 8-13 gestational weeks, and they performed a 24-h dietary recall at 16-22 and 24-29 wk. Gestational diabetes (GDM), gestational hypertension, preeclampsia, and preterm delivery were ascertained using medical records.ResultsHealthier diet indicated by higher AHEI, AMED, and DASH scores was generally related to lower risks of pregnancy complications. Significant inverse associations were observed between AHEI score reported at 16-22 wk and GDM risk [adjusted RR (95% CI), highest (Q4) vs. lowest quartile (Q1): 0.32 (0.16, 0.66), P-trend = 0.002]; DASH score reported at both 8-13 [adjusted RR (95% CI), Q4 vs. Q1: 0.45 (0.17, 1.17), P-trend = 0.04] and 16-22 wk [adjusted RR (95% CI), Q4 vs. Q1: 0.19 (0.05, 0.65), P-trend = 0.01] and gestational hypertension risk; AHEI score reported at 24-29 wk and preeclampsia risk [adjusted RR (95% CI), Q4 vs. Q1: 0.31 (0.11, 0.87), P-trend = 0.03]; AMED score reported at 8-13 wk [adjusted RR (95% CI), Q4 vs. Q1: 0.50 (0.25, 1.01), P-trend = 0.03] and DASH score reported at 24-29 wk [adjusted RR (95% CI), Q4 vs. Q1: 0.50, (0.26, 0.96), P-trend = 0.03] and preterm delivery risk.ConclusionsAdherence to AHEI, AMED, or DASH during periconception and pregnancy was related to lower risks of GDM, gestational hypertension, preeclampsia, and preterm delivery.This study was registered at ClinicalTrials.gov as NCT00912132.

Project description:There is a lack of research on preconception diet and reproductive outcomes conducted in the Chinese population using individual assessment. Between April 2017 and April 2020, 2,796 couples undergoing in vitro fertilization treatment were recruited in this ongoing prospective cohort, and 1,500 eligible couples were included in the final analysis. A validated semi-quantitative food frequency questionnaire was used to evaluate the maternal preconception diet. Other lifestyle factors, including smoking status, psycho-mental status, sleep quality, and physical activity, were also assessed. Five dietary patterns were identified using principal component analysis, namely "Fruits-Vegetables-Dairy-Eggs," "Fish/Seafood-Animal blood," "Tubers-Beans-Cereals," "Puffed food-Candy-Bakery," and "Dried Fruits-Organs-Rice." After adjusting for multiple confounders, we detected that the women who are more inclined to the "Fruits-Vegetables-Dairy-Eggs" pattern and less adherent to the "Tubers-Beans-Cereals" were more likely to achieve normally fertilized eggs and transferable embryos. Regarding pregnancy outcomes, we observed that a lower "Puffed food-Candy-Bakery" score and a higher "Dried fruits-Organs-Rice" score were related to a higher likelihood to achieve biochemical pregnancy. In terms of pregnancy complications, an inverse association between "Fish/Seafood-Animal blood" and hypertensive disorders was observed. We further clustered the dietary patterns based on the proportion of food groups consumed and found that dairy intake was beneficial to embryo quality, while frequent rice consumption was associated with a higher risk of macrosomia. Notably, in the stratified analysis, we observed that the positive relationship between the "Fruit-Dairy-Vegetables-Eggs" score and normal fertilization and the inverse association of the "Fish/Seafood-Animal blood" score with hypertensive disorders during pregnancy were exhibited only among women with body mass index ≥25 kg/m2. In conclusion, pre-treatment diets might be an important target for intervention to achieve a better reproductive outcome.

Project description:BackgroundDiet is increasingly recognized as an important determinant of human fertility, with most research focused on specific nutrients or food groups. However, there has been limited assessment of the effect of dietary patterns on fertility.ObjectivesWe evaluated the association between 4 dietary patterns [the alternative Mediterranean Diet (aMed), the Healthy Eating Index-2010 (HEI-2010), the Danish Dietary Guidelines (DDGI), and the Dietary Inflammatory Index (DII)] and fecundability in 2 preconception cohorts of couples trying to conceive: SF (SnartForaeldre.dk) in Denmark and PRESTO (Pregnancy Study Online) in North America.MethodsParticipants completed a baseline questionnaire on sociodemographic, anthropometric, and lifestyle factors and, 10 d later, a validated cohort-specific FFQ. We used data from these respective FFQs to calculate adherence to each dietary pattern. Participants completed bimonthly follow-up questionnaires for ≤12 mo or until pregnancy, whichever came first. We restricted analyses to 3429 SF and 5803 PRESTO participants attempting pregnancy for ≤6 cycles at enrollment. We used proportional probabilities regression models to estimate fecundability ratios (FRs) and 95% CIs, adjusting for potential confounders.ResultsGreater DII, indicative of a less anti-inflammatory diet (i.e., poorer diet quality), was associated with reduced fecundability in both SF and PRESTO (DII ≥ -1.5 compared with < -3.3: FR: 0.83; 95% CI: 0.71, 0.97 and FR: 0.82; 95% CI: 0.73, 0.93, respectively). In PRESTO, greater adherence to the aMed or to the HEI-2010 was associated with greater fecundability. In SF, there was no appreciable association between the aMed and fecundability, whereas greater adherence to the DDGI was associated with greater fecundability.ConclusionsIn prospective preconception cohort studies from Denmark and North America, higher-quality diets, including diets lower in inflammatory effects, were associated with greater fecundability.

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Prospective Study of Dietary Patterns and Hearing Threshold Elevation.

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Prospective Study of Dietary Patterns and Hearing Threshold Elevation.

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