scholarly journals Fruit and Vegetable Consumption and Their Polyphenol Content Are Inversely Associated with Sleep Duration: Prospective Associations from the UK Women’s Cohort Study

Nutrients ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1803 ◽  
Author(s):  
Essra Noorwali ◽  
Laura Hardie ◽  
Janet Cade

This study aims to investigate the prospective associations between fruit and vegetable (FV) intakes and their polyphenol content with subsequent sleep duration in UK women. In this study, 13,958 women with ~4 years of follow-up in the UK Women’s Cohort Study were included in the analyses. FV intakes were assessed at baseline using a food frequency questionnaire (FFQ), and average hours of sleep per day were self-reported in follow-up. Polyphenol intake was calculated by matching FV items from the FFQ with the Phenol-Explorer database. Linear regression models, adjusting for confounders, were used for the analyses. Consuming an additional portion of apples, kiwi, oranges, pineapple, and 100% pure juice were associated with shorter sleep. Similarly, an additional portion of cabbage, celery, aubergine, olives, and peppers were inversely associated with sleep duration. An additional gram of total polyphenols was associated with shorter sleep by 18 min (99% CI −31 to −4, p < 0.001). FV consumption and total polyphenol content were inversely associated with sleep duration; however, effect sizes were small, and polyphenol classes from FV intakes were not associated with sleep duration. Future intervention studies considering the time of FV consumption in relation to sleep are needed to clarify the underlying mechanisms.

Appetite ◽  
2001 ◽  
Vol 37 (1) ◽  
pp. 71-79 ◽  
Author(s):  
Jennie Pollard ◽  
Darren Greenwood ◽  
Sara Kirk ◽  
Janet Cade

2002 ◽  
Vol 5 (3) ◽  
pp. 479-486 ◽  
Author(s):  
Jennie Pollard ◽  
Darren Greenwood ◽  
Sara Kirk ◽  
Janet Cade

Abstract:Background: Despite recommendations to increase fruit and vegetable consumption within the UK population, intakes are still too low. In order to stimulate dietary behaviour change the determinants of food choice need to be explored.Objectives:To investigate how the priorities of high consumers of fruit and vegetables differ from those of low consumers, with respect to food choice motivations, and to identify what value high and low consumers place on different aspects of food choice behaviour.Design:A 4-day food diary and a questionnaire, including The Food Choice Questionnaire (FCQ) and a measure of Stage of Change (SOC) for fruit and vegetable consumption, were administered to subjects. Motivation scores from the FCQ were compared with fruit and vegetable intake and SOC data.Subjects:Nine hundred and ninety-eight females, aged 35–69 years, participating in the UK Women's Cohort Study.Results:In a multiple linear regression model, including age, education level and all FCQ motivations, the strongest motivations specifically affecting fruit and vegetable intake were health and natural content. It was found that, for a one point increase (measured on a scale of 0–4) in health and natural content scores, fruit and vegetable consumption increased by 1.11 portions (95% confidence interval (CI) 0.5–1.7) and 0.84 portions (95% CI 0.4–1.3), respectively (P>0.01). The SOC evaluation showed significant associations with portions of fruit and vegetables consumed (P>0.01). Women whose SOC was classed as maintenance phase were found to score higher on health, natural content, weight control and ethical concern factors (P>0.01). These women also scored lower on convenience questions (P>0.01).Conclusion:In this particular group of women the most important motivating factors for food choice, within the high fruit and vegetable consumers, were health and natural content of the food.


Cancers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1036
Author(s):  
Sangeetha Shyam ◽  
Darren Greenwood ◽  
Chun-Wai Mai ◽  
Seok Shin Tan ◽  
Barakatun Nisak Mohd Yusof ◽  
...  

(1) Background: We studied the association of both conventional (BMI, waist and hip circumference and waist–hip ratio) and novel (UK clothing sizes) obesity indices with pancreatic cancer risk in the UK women’s cohort study (UKWCS). (2) Methods: The UKWCS recruited 35,792 women from England, Wales and Scotland from 1995 to 1998. Cancer diagnosis and death information were obtained from the National Health Service (NHS) Central Register. Cox’s proportional hazards regression was used to evaluate the association between baseline obesity indicators and pancreatic cancer risk. (3) Results: This analysis included 35,364 participants with a median follow-up of 19.3 years. During the 654,566 person-years follow up, there were 136 incident pancreatic cancer cases. After adjustments for age, smoking, education and physical activity, each centimetre increase in hip circumference (HR: 1.03, 95% CI: 1.01–1.05, p = 0.009) and each size increase in skirt size (HR: 1.12, 95% CI: 1.02–1.23, p = 0.041) at baseline increased pancreatic cancer risk. Baseline BMI became a significant predictor of pancreatic cancer risk (HR: 1.04, 95% CI: 1.00–1.08, p = 0.050) when latent pancreatic cancer cases were removed. Only baseline hip circumference was associated with pancreatic cancer risk (HR: 1.03, 95% CI: 1.00–1.05, p = 0.017) when participants with diabetes at baseline were excluded to control for reverse causality. (4) Conclusion: Hip circumference and skirt size were significant predictors of pancreatic cancer risk in the primary analysis. Thus, hip circumference is useful to assess body shape relationships. Additionally, standard skirt sizes offer an economical and objective alternative to conventional obesity indices for evaluating pancreatic cancer risk in women.


2021 ◽  
pp. 1-12
Author(s):  
Tanushree Banerjee ◽  
Juan Jesus Carrero ◽  
Charles McCulloch ◽  
Nilka Rios Burrows ◽  
Karen R. Siegel ◽  
...  

<b><i>Background:</i></b> The association between fruit and vegetable (FV) intake and the risk of end-stage kidney disease (ESKD) has not been examined in the general population and fully explored in chronic kidney disease (CKD). We prospectively evaluated this relationship in US representative sample of adults and evaluated consistency by the presence or absence, and severity, of CKD. <b><i>Methods:</i></b> We used data from the Third National Health and Nutrition Examination Survey (1988–1994) linked with the US Renal Data System, including 14,725 adults aged ≥20 years and with follow-up for ESKD through 2008. Daily FV intake was ascertained using a food frequency questionnaire. We examined the association between selected categories of FV intake and ESKD using a Fine Gray competing risk model adjusting for sociodemographics, lifestyle, clinical and nutritional factors, estimated glomerular filtration rate, and albuminuria. We evaluated whether risk varied in individuals with severe versus any CKD. <b><i>Results:</i></b> 230 participants (1.5%) developed ESKD during follow-up. In the adjusted model, compared to highest intake, those in lowest categories of FV intake had a higher risk of ESKD, for &#x3c;2 times/day (1.45 [1.24–1.68], 2 to &#x3c;3 times/day (1.40 [1.18–1.61]), 3 to &#x3c;4 times/day (1.25 [1.04–1.46]), and 4 to &#x3c;6 times/day (1.14 [0.97–1.31]). There was suggestion of heterogeneity (<i>p</i> for interaction = 0.03) with possible stronger inverse association in patients with CKD than those without CKD. After stratification, we obtained similar strong inverse association when we examined ESKD incidence across intake of FVs in participants with CKD stages 1–4 (<i>n</i> = 5,346) and specifically in those with CKD stages 3–4 (<i>n</i> = 1,084). <b><i>Conclusions:</i></b> Low intake of FVs was associated with higher risk of ESKD in US adults with and without CKD, supporting an emerging body of literature on the potential benefits of plant-rich diets for prevention of ESKD.


2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Yanfeng Ren ◽  
Maohua Miao ◽  
Wei Yuan ◽  
Jiangwei Sun

Abstract Background Although a U-shaped association between sleep duration and all-cause mortality has been found in general population, its association in the elderly adults, especially in the oldest-old, is rarely explored. Methods In present cohort study, we prospectively explore the association between sleep duration and all-cause mortality among 15,092 participants enrolled in the Chinese Longitudinal Healthy Longevity Survey (CLHLS) from 2005 to 2019. Sleep duration and death information was collected by using structured questionnaires. Cox regression model with sleep duration as a time-varying exposure was performed to calculate the hazard ratios (HRs) and 95% confidence intervals (CIs). The dose-response association between them was explored via a restricted cubic spline function. Results During an average follow-up of 4.51 (standard deviation, SD: 3.62) years, 10,768 participants died during the follow-up period. The mean (SD) age of the participants was 89.26 (11.56) years old. Compared to individuals with moderate sleep duration (7–8 hours), individuals with long sleep duration (> 8 hours) had a significantly higher risk of all-cause mortality (HR: 1.13, 95%CI: 1.09–1.18), but not among individuals with short sleep duration (≤ 6 hours) (HR: 1.02, 95%CI: 0.96–1.09). Similar results were observed in subgroup analyses based on age and gender. In the dose-response analysis, a J-shaped association was observed. Conclusions Sleep duration was associated with all-cause mortality in a J-shaped pattern in the elderly population in China.


2021 ◽  
Author(s):  
Bozena Wielgoszewska ◽  
Jane Maddock ◽  
Michael J Green ◽  
Giorgio Di Gessa ◽  
Sam Parsons ◽  
...  

Background: In March 2020 the UK implemented the Coronavirus Job Retention Scheme (furlough) to minimize job losses. Our aim was to investigate associations between furlough and diet, physical activity, and sleep during the early stages of the pandemic. Methods: We analysed data from 25,092 participants aged 16 to 66 years from eight UK longitudinal studies. Changes in employment (including being furloughed) were defined by comparing employment status pre- and during the first lockdown. Health behaviours included fruit and vegetable consumption, physical activity, and sleeping patterns. Study-specific estimates obtained using modified Poisson regression, adjusting for socio-demographic characteristics and pre-pandemic health and health behaviours, were statistically pooled. Associations were also stratified by sex, age, and education. Findings: Across studies, between 8 and 25% of participants were furloughed. Compared to those who remained working, furloughed workers were slightly less likely to be physically inactive (RRR:0.85, [0.75-0.97], I2=58.7%) and did not differ in diet and sleep behaviours. In stratified analyses, furlough was associated with low fruit and vegetable consumption among males (RRR=1.11; 95%CI: 1.01-1.22; I2: 0%) but not females (RRR=0.84; 95%CI: 0.68-1.04; I2: 65%). Considering change in behaviour, furloughed workers were more likely than those who remained working to report increased fruit and vegetable consumption, exercise, and hours of sleep. Interpretation: Those furloughed exhibited broadly similar levels of health behaviours with those who remained in employment during the initial stages of the pandemic. Social protection policies in the post-pandemic recovery period and during future economic crises may help protect population health. Funding: Medical Research Council.


Sign in / Sign up

Export Citation Format

Share Document