Sodium Intake and Health: What Should We Recommend Based on the Current Evidence?

Several health organizations recommend low sodium intake (below 2.3 g/day, 5.8 g/day of salt) for entire populations, on the premise that lowering of sodium intake, irrespective of its level of intake, will lower blood pressure and, in turn, will result in a lower incidence of cardiovascular disease. These guidelines were developed without effective interventions to achieve long term sodium intakes at low levels in free-living individuals and without high-quality evidence that low sodium intake reduces cardiovascular events (compared with average levels of intake). In this review, we examine whether advice to consume low amounts of sodium is supported by robust evidence. We contend that current evidence indicates that most people around the world consume a moderate range of dietary sodium (3 to 5 g/day), that this level of intake is associated with the lowest risk of cardiovascular disease and mortality, and that the risk of adverse health outcomes increases when sodium intakes exceeds 5 g/day or is below 3 g/day. While the current evidence has limitations, it is reasonable, based upon prospective cohort studies, to suggest a mean target of below 5 g/day in populations, while awaiting the results of large randomized controlled trials of sodium reduction on cardiovascular disease and death.     

Is Maternal Food Security a Predictor of Food and Drink Intake Among Toddlers in Oregon?

Food insecurity has detrimental effects on the mental, physical, and behavioral health of developing children. Few studies, however, have sought to determine whether associations exist between food insecurity and intake of vegetables, fresh or canned fruit, candy or cookies, French fries, fast food, water, milk, fruit juices, fruit drinks, soda, and sports drinks. To identify independent associations that exist between maternal food insecurity and food and drink intake among toddlers, population-based data from the 2006–2008 Oregon Pregnancy Risk Assessment Monitoring System follow-back survey (Oregon PRAMS-2) of 1,522 mothers of 2-year-old children were analyzed. Maternal food insecurity was defined as mothers’ report of eating less because of lack of money for food. Typical weekly child food and drink intake was examined using polytomous logistic regression: 0–1 days/week, 2–3 days/week, and 4–7 days/week. Maternal food insecurity prevalence was 11.7 %. Compared to toddlers of food secure mothers, toddlers of food insecure mothers consumed vegetables (adjusted odds ratio [AOR] for 4–7 days/week = 0.31; 95 % confidence interval [CI] 0.12, 0.79) and fruit (AOR for 4–7 days/week = 0.25; 95 % CI 0.08, 0.75) fewer days of the week. Toddlers of food insecure mothers consumed soda (AOR for 4–7 days/week = 3.21; 95 % CI 1.12, 9.14) more days of the week. Maternal food insecurity is associated with weekly intake of certain foods and drinks. Among toddlers, consumption of fewer vegetables and fruit, and more soda may help explain the link between food insecurity and poor health.     

Measuring Kitchen Performance: What Assessment Should we Choose?

There are several published kitchen assessments currently available for use by clinicians. The main objective of this paper was to offer criteria for choosing standardized kitchen assessments, from a ''top-down'' cognitive perspective, in order to help clinicians in selecting the most appropriate kitchen assessment tools. Towards this objective, four standardized kitchen assessment tools were critically analyzed by means of six criteria: (1) frame of reference and theoretical basis; (2) cultural relevance; (3) clinical utility; (4) outcome measures; (5) psychometric properties; and (6) scoring methods. Each of the assessment tools was then analyzed according to ten executive function components. The advantages and disadvantages of each assessment tool are addressed in the final discussion. The main conclusion is that the Assessment of Motor and Process Skills (AMPS) is the most comprehensive tool for assessing occupational performance.     

Fibre Intake in Chronic Kidney Disease: What Fibre Should We Recommend?

Chronic kidney disease (CKD) is a major global health problem that challenges all patients’ healthcare needs. Fibre consumption benefits kidney patients by acting preventively on associated risk factors, improving intestinal microbiota composition or reducing metabolic acidosis and inflammation. In this review, we focus on increasing fibre consumption and the quality of fibre to recommend, in addition to increasing the consumption of foods that naturally have it in their design, that can resort to fortified foods or fibre supplements. The Western nutritional practice, which is low in fibre and rich in animal proteins, saturated fats, sodium, and sugar, increases the risk of mortality in these patients. On the contrary, patterns with higher consumption of fibre and vegetable proteins, such as the Mediterranean, vegetarian, or Plant dominant low protein diet (PLADO), seem to have a preventive effect on the associated risk factors and influence CKD progression. Until now, the use of fibre supplements has not achieved an evident impact on clinical results. Fibre-rich foods contain other nutrients that reduce cardiovascular risk. Promoting diets richer in vegetables and guaranteeing adequate energy and protein intake is a challenge for the multidisciplinary teams involved in the standard of care for CKD.     

Drink and drug driving: what's the skipper up to?

OBJECTIVE: Since the introduction of random breath testing (RBT) in Australia there has been a significant reduction in drink driving, as measured by alcohol-related crashes. In contrast, the prevalence of drug-related road fatalities is on the increase. One strategy that targets drink- and/or drug-driving is the promotion of a designated driver or 'skipper'. This paper determines to what extent the 'skipper' is driving alcohol or drug-free. METHODS: A convenience sample of university students from The University of Western Australia completed a questionnaire that included questions on drug and alcohol use while driving as the designated 'skipper'. RESULTS: The mean age of the 286 participants was 21 years. Among the students who reported acting as the designated 'skipper' during the past 12 months, 26% of the students drove, as the designated 'skipper,' while feeling the effects of alcohol. Similarly, 18% of students who reported using drugs drove, as the 'skipper', while feeling the effects of the drug. Multivariate analysis identified that the presence of random drug testing would act as a deterrent for drug driving while the designated 'skipper'. CONCLUSION: Although three-quarters of designated 'skippers' do not drink and/or drug drive, a sizeable proportion of young drivers continue to place themselves and, more importantly, their passengers and the entire community at an elevated risk of injury. IMPLICATIONS: Campaigns that target the responsibility of the 'skipper' and that are included as part of drink-driving campaigns would be beneficial. It is premature to be making recommendations on random drug testing for drivers.     

Smokeless Tobacco: How Exposed are Our Schoolchildren?

The use of smokeless tobacco (ST) is linked to poor health outcomes, including oral and esophageal cancers. Adolescents who use ST are also more likely to use cigarettes and develop lung cancer later in life. Evidence shows that proximity to tobacco retailers increases youth initiation of use. We assessed availability of ST in neighborhoods surrounding ten high schools in New York City. Three hundred and twenty-one retailers were visited. Sixty-three percent of likely tobacco-selling businesses surrounding schools sold cigarettes. About 20 % sold snus, while 3 % sold snuff. Culturally-linked ST products, such as paan and gutka, were largely confined to ethnic neighborhoods, while snuff was more prevalent in neighborhoods with predominantly US born residents. A variety of ST products are easily accessible to adolescents and are located within close proximity to schools, perhaps facilitating use, as has been documented with youth smoking. Further research is needed on adolescent use of culturally-linked ST products. This research can serve as a foundation for development of interventions to reduce ST use among adolescents and for policy recommendations.     

Lessons From Healthcare Providers' Attitudes Toward Pay-for-performance: What Should Purchasers Consider in Designing and Implementing a Successful Program?

We conducted a systematic review to summarize providers'' attitudes toward pay-for-performance (P4P), focusing on their general attitudes, the effects of P4P, their favorable design and implementation methods, and concerns. An electronic search was performed in PubMed and Scopus using selected keywords including P4P. Two reviewers screened target articles using titles and abstract review and then read the full version of the screened articles for the final selections. In addition, one reference of screened articles and one unpublished report were also included. Therefore, 14 articles were included in this study. Healthcare providers'' attitudes on P4P were summarized in two ways. First, we gathered their general attitudes and opinions regarding the effects of P4P. Second, we rearranged their opinions regarding desirable P4P design and implementation methods, as well as their concerns. This study showed the possibility that some healthcare providers still have a low level of awareness about P4P and might prefer voluntary participation in P4P. In addition, they felt that adequate quality indicators and additional support for implementation of P4P would be needed. Most healthcare providers also had serious concerns that P4P would induce unintended consequences. In order to conduct successful implementation of P4P, purchaser should make more efforts such as increasing providers'' level of awareness about P4P, providing technical and educational support, reducing their burden, developing a cooperative relationship with providers, developing more accurate quality measures, and minimizing the unintended consequences.     

Food Addiction and Cognitive Functioning: What Happens in Adolescents?

This study aimed to examine cognitive factors associated to food addiction (FA) symptoms in a non-clinical sample of adolescents. A group of 25 adolescents (12–18 years; Mean age = 15.2 years) with a high level of FA symptoms (two and more) were compared to a control group without FA symptoms (n = 25), matched on sex and age, on four Cambridge Neuropsychological Test Automated Battery (CANTAB) neuropsychological tasks (MT: Multitasking Test; OTS: One Touch Stockings of Cambridge; SST: Stop Signal Task; RVP: Rapid Visual Information Processing). They were also compared on self-reported questionnaires assessing binge eating, depressive and anxiety symptoms, impulsivity levels, as well as executive functioning difficulties. Group comparisons did not show significant differences on neuropsychological tasks’ performances. However, effect sizes’ estimates showed small to medium effect sizes on three scores: adolescents with a high level of FA symptoms showed a higher probability of an error following an incorrect answer (OTS), a higher probability of false alarm, and a poorer target sensitivity (RVP). When referring to self-reported measurements, they reported significantly more executive functioning difficulties, more binge eating, depressive symptoms and higher impulsivity levels. Overall, results suggested that cognitive difficulties related to FA symptoms seem to manifest themselves more clearly when assessing daily activities with a self-reported questionnaire, which in turn are strongly related to overeating behaviors and psychological symptoms. Future longitudinal research is needed to examine the evolution of those variables, their relationships, and contribution in obesity onset. More precisely, the present findings highlighted the importance of affective difficulties related to this condition, as well as the need to take them into account in its assessment.     

Intakes of Vitamin C,Vegetables and Fruits: Which Schoolchildren Are at Risk?

Objective: The purpose of this study was to determine vitamin C intakes among American schoolchildren. We investigated the leading sources of vitamin C in children’s diets, the leading vegetables and fruits consumed by children and differences in dietary intake associated with vitamin C consumption.

Methods: Data from 1,350 7- to 12-year-old and 908 13- to 18-year-old schoolchildren were obtained from the 1994–1996 Continuing Survey of Food Intakes by Individuals (CSFII). The children were stratified by age and gender and then split into three vitamin C consumption groups based upon two 24-hour recalls: low (0 to 30.0 mg), marginal (30.1 to 59.9 mg), and desirable (>60.0 mg). Data were analyzed by tabulation and by ANOVA followed by post hoc Scheffe’s test. Outcome measures included food groups and energy-adjusted intakes of micro- and macronutrients.

Results: Among the 7- to 12-year-olds, 12% of boys and 13% of girls had mean vitamin C intakes that were less than 30 mg/day, and, among 13- to 18-year-olds, 14% of boys and 20% of girls had low vitamin C intakes. In addition to consuming significantly more vitamin C, children with desirable vitamin C intakes also consumed significantly more (p <0.001) energy-adjusted folate and vitamin B₆; children with low vitamin C intakes tended to have significantly greater (p <0.001) energy-adjusted intakes of fat and saturated fat. Children with desirable vitamin C intakes consumed significantly more (p <0.006) high-vitamin C fruit juice, low-vitamin C vegetables and whole milk. Children with low vitamin C intakes on average consumed two daily servings of vegetables and fruits, of which less than ? of a serving was citrus, while children with desirable vitamin C intakes consumed an average of one daily serving of citrus.

Conclusions: A considerable number of children drastically under-consumed vitamin C and total vegetables and fruits. Overall, children with desirable vitamin C intakes had healthier diets, including more milk and vegetables, than did their peers with low vitamin C intakes. Health care professionals should continue to promote at least five daily servings of vegetables and fruits and should advise parents that at least one of these should be rich in vitamin C.     

Fluid and electrolyte balance: how do junior doctors measure up?

Fluid and electrolyte disorders are common in hospital patients and can cause serious complications, especially in the elderly. The task of fluid management is often left to the most junior members of the team, the senior house officer and the preregistration house officer. However, the level of teaching and support available to them in this regard appears to be unsatisfactory.     

Dietary Recommendations During and After Cancer Treatment: Consistently Inconsistent?

Recent data reveals that dietary factors may influence outcomes in patients undergoing cancer treatment. However, patient-centered information on dietary recommendations is limited. In this study, we assessed dietary recommendations for cancer patients during treatment and survivorship by evaluating the websites of all National Comprehensive Cancer Network (NCCN) member institutions. NCCN members were identified on www.nccn.org, and individual websites were reviewed for nutritional content. Recommendations were categorized by meal frequency, diet type, macronutrient content, and other specific recommendations. Twenty-one NCCN member institutions were identified. Only 4 sites (19%) provided nutritional guidelines. Half promoted a low-fat, high-carbohydrate diet recommending 5:1 and 7:1 ratios of carbohydrate to fat food types, and half promoted weight maintenance during treatment, endorsing a 1:1 ratio of carbohydrate to fat. One third of all NCCN sites (n = 7) had links to 9 external websites. Four external sites provided nutrition guidelines: half favored a low-fat, high-carbohydrate diet, and half favored high-caloric intake to maintain weight. Consistent online dietary recommendations are lacking for patients during and after cancer treatment. Given the lack of consensus on dietary recommendations, future research is warranted to develop evidenced-based guidelines that can be used by oncologists and patients alike.     

Breast cancer screening: Should it be introduced and how?

Summary This brief discussion of the papers by Gästrin and Paccaud is looking at differences in the results of different study types. Introducing screening means changing unsystematic to systematic screening: only the latter has been shown to be effective. The comparison between randomized trials, and follow-up of acceptors only, suggests that the non-acceptors have much higher risks. Programmes should therefore concentrate on trying to reach non-acceptors. The combination of mammographic screening and self-examination in a randomized trial could add to the existing evidence.

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Zusammenfassung Die Diskussion der beiden Arbeiten von Gästrin und Paccaud befasst sich mit den Unterschieden zwischen systematischem und unsystematischem screening: Nur ersteres hat in der Vergangenheit Effekte gezeigt. Nachuntersuchungen von Frauen, welche Screening akzeptiert haben, zeigen bessere Resultate als die randomisierten Studien; dies weist darauf hin, dass Frauen, welche in unsystematischem Screening nicht erfasst werden, ein höheres Risiko haben. Neue Programme sollten deswegen unbedingt darauf achten, auch diejenigen Frauen für Screening zu gewinnen, welche sonst nicht kommen. Die Kombination der zwei Ansätze: Mammographie Screening und Selbstuntersuchung der Brust in einer randomisierten Untersuchung könnte wichtige Hinweise zur Ergänzung der bestehenden Evidenz geben.

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Résumé La brève discussion des articles de Gästrin et Paccaud porte sur la diversité des résultats obtenus lors d'études de types différents. En introduisant le dépistage, le dépistage non-systématique fait place à un dépistage systématisé, qui s'est révélé être efficace. La comparaison entre des essais randomisés et des études de suivi chez des femmes acceptant le dépistage suggère que les femmes nonsoumises au dépistage ont un risque plus élevé. Les nouveaux programmes devraient porter leur attention sur la motivation de ces femmes à haut risque. La combinaison du dépistage par mammographie et de la palpation du sein par la femme elle-même pourrait, dans le cadre d'un essai clinique randomisé, apporter des éléments complémentaires renforçant l'evidence déjà existante.

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Paper presented at a symposium on The Public Health Perspective of Social and Preventive Medicine, in celebration of the 20th anniversary of the Department of Social and Preventive Medicine, University of Berne, 25 June 1992 in Berne.     

Birth Weight and Early Cognitive Skills: Can Parenting Offset the Link?

Objectives There is an enduring negative association between low birth weight (<2500 g) and early childhood cognitive skills. This study examines if parenting practices meaningfully contribute to or offset birth weight disparities in cognitive development prior to formal schooling. Methods This study uses the ECLS-B, a nationally representative sample of live births in the United States in 2001. Unlike studies focused on one or two measures of parenting and investment, this study considers a wide array parenting measures collected at multiple time points, tracked from before birth across 5 years of development. Results Regression results show that nearly 50 % of the low-birth-weight gap in early math and reading ability is associated with family socioeconomic status. Between-family OLS regressions show that parenting practices, including “parental interaction,” “cognitive stimulation,” and “parent quality”, are negatively associated with low birth weight and positively associated with improved cognitive skill among all children. After adjustment for family socioeconomic status, parenting practices did little to offset (by mediation or moderation) remaining birth weight disparities in early cognitive development. Conclusions Effective parenting is positively associated with cognitive development, but parenting is not a panacea—the developmental disadvantages associated with poor child health are not linked to parenting practices. We argue that birth weight disparities are rooted in biology and cannot easily be offset by parenting practices.     

Interplay Between Self-Efficacy and Perceived Availability at Home and in the School Neighborhood on Adolescents’ Fruit and Vegetable Intake and Energy-Dense,Low-Nutrient Food and Sugary Drink Consumption

Objective

The current study aimed to examine the interplay between self-efficacy and perceived availabilities of fruits and vegetables (F&V) and energy-dense, low-nutrient foods and sugary drinks (EDLNF&SD) at home and in the school neighborhoods on adolescents’ eating behaviors.