Reproducibility and relative validity of a newly developed web-based food-frequency questionnaire for assessment of preconception diet

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EFFECT OF WETTABILITY ON OIL RECOVERY FROM CARBONATE MATERIAL REPRESENTING DIFFERENT PORE CLASSES

ABSTRACT This paper discusses experimental studies of waterflooding native state cores and also waterflooding results for the same cores after aging in crude oil. The topics discussed are related to the effect of wettability change on relative permeability and oil recovery for different carbonate core materials. The unsteady state method was used as experimental procedure for measuring relative permeability and obtaining oil recovery data. The wettability was measured after aging, using the combined Amott / USBM method. The core material used in this study represents different pore classes within carbonate reservoirs. The cores used represent outcrop and gas well cores and had an initial waterwet state. Different carbonate pore classes showed large variation in properties with regard to two-phase flow properties. The waterflood experiments showed that low permeable carbonate (K << 1 mD) may still display a high oil recovery efficiency. The wettability of the cores after aging was intermediate towards oil wet, and nearly all the material displayed a mixed-wet small behaviour. The initial water saturation (S wi ) was very similar for the water-wet cores and the same cores after aging, which is essential for comparing the different wetting states. A strong increase in oil recovery after aging was observed in most cases, except for the cores that showed no spontaneous imbibition after aging. These cores had a lower oil recovery for aged cores compared to waterflood at initial water-wet conditions

Differences in formal education among Norwegian Home Economics teachers

Many Norwegian teachers in Food and Health (Home Economics) do not have any formal subject-specific education. This study aims to explore potential differences between teachers with formal versus no formal Food and Health education. In 2018, Food and Health teachers in all primary and lower secondary schools in Norway were invited to answer a web-based questionnaire. In total, 1170 Food and Health teachers completed the questionnaire. We found several differences between the groups. Most importantly, 49% of the teachers at the secondary school level had formal Food and Health education despite national requirements. Also, a higher proportion of the formally educated group showed more contentment with teaching and reported to a greater extent mastering teaching (p≤0.001) compared to the non-educated group. With higher coverage of formally educated teachers in Food and Health, the subject can be strengthened towards fulfilling its potential of being influential for motivation, knowledge and life skills related to food and health.publishedVersio

The mismatch between teaching practices and curriculum goals in Norwegian Home Economics classes : a missed opportunity

DOI 10.1080/20004508.2020.1816677Current curriculum guidelines emphasise the importance of both nutrition education and the development of practical cooking skills in the school subject Food and Health (FH). This study aimed to explore teachers’ and students’ perspectives and experiences of current classroom practices in FH. Focus group discussions (FGDs) with teachers and students at three schools in Southern Norway were conducted and thematically analysed. Our findings suggest there is a mismatch between curriculum guidelines and teaching practices. Although teachers understood the benefits of nutrition education, practical cooking activities were prioritised. Three key themes were identified; students and teachers value cooking and limited time, which both explain this mismatch from the perspectives of students and teachers, and pedagogical solutions to resolve the mismatch, which summarises novel learning activities suggested by students and teachers as a solution for this mismatch. There needs to be a focus on comprehensive nutrition education in FH classes, to improve its pedagogical implications and meet the demands of the curriculum. These findings can be used to inform educators and policymakers on how to strengthen nutrition education in FH.Peer reviewe

Severe traumatic brain injury in Norway: Impact of age on outcome

Objective: The aim of this study was to investigate the influence of age on mortality and 3-month outcome in a Norwegian cohort of patients with severe traumatic brain injury (TBI). Methods: Norwegian residents ≥ 16 years of age who were admitted with a severe TBI to the country’s 4 major trauma centres in 2009 and 2010 were included, as were adults (16– 64 years) and elderly patients (≥ 65 years). Results: Half of the adult subjects and 84% of the elderly subjects were injured by falls. One-third of the adults and half of the elderly subjects were admitted to a local hospital before being transported to a regional trauma hospital. Subdural haematomas were more frequent in the elderly subjects. One-quarter of adults and two-thirds of the elderly subjects died within 3 months. At 3 months, 41% of the adult survivors were still in-patients, mainly in rehabilitation units (92%). Of the surviving elderly subjects, 14% were in-patients and none were in rehabilitation units. There was no difference in functional level for survivors at the 3-month follow-up. Conclusion: Old age is associated with fall-induced severe TBI and high mortality rates. Less intensive treatment strategies were applied to elderly patients in the present study despite high rates of haemorrhage. Few surviving elderly patients received rehabilitation at 3 months post-injury.publishedVersio

Serving of free school lunch to secondary-school pupils - a pilot study with health implications

Published version of an article from the journal Public Health Nutrition, Copyright Cambridge University Press. Article also available from publisher: http://dx.doi.org/10.1017/S1368980009990772Objective: To study whether service of a free school lunch has an impact on weight development and food intake among pupils at a lower secondary school, and to assess the association between self-perceived school behaviour and food intake. Design: A controlled intervention study involving service of a free healthy school lunch to 9th grade pupils took place over 4 months, from January to May 2007. Weight and height were measured before and after the intervention. The pupils also completed a short FFQ and a questionnaire concerning self-perceived school behaviour and the classroom environment before and after the intervention. A healthy food score was calculated using the FFQ data. Setting: All 9th graders at three different lower secondary schools in southern Norway were invited to participate. One school was randomly selected as the intervention school. Subjects: Fifty-eight pupils (91 %) from the intervention school and ninety-two pupils (77 %) from the control schools participated. Results: BMI did not increase among the girls at the intervention school, but increased significantly among the boys at the intervention school and among the control school groups. The healthy food score correlated positively with the trait ‘satisfied with schoolwork’ (P,0?001). Fifteen per cent of the variance in food score could be explained by gender and the trait ‘satisfied with schoolwork’. Conclusions: Serving of a healthy free school lunch to secondary-school pupils may result in restricted weight gain. Further studies are needed to clarify the impact of school meals on overweight and academic performance

Obesity Does Not Protect From Subarachnoid Hemorrhage : Pooled Analyses of 3 Large Prospective Nordic Cohorts

Background: Several population-based cohort studies have related higher body mass index (BMI) to a decreased risk of subarachnoid hemorrhage (SAH). The main objective of our study was to investigate whether the previously reported inverse association can be explained by modifying effects of the most important risk factors of SAH-smoking and hypertension. Methods: We conducted a collaborative study of three prospective population-based Nordic cohorts by combining comprehensive baseline data from 211 972 adult participants collected between 1972 and 2012, with follow-up until the end of 2018. Primarily, we compared the risk of SAH between three BMI categories: (1) low (BMI= 30) BMI and evaluated the modifying effects of smoking and hypertension on the associations. Results: We identified 831 SAH events (mean age 62 years, 55% women) during the total follow-up of 4.7 million person-years. Compared with the moderate BMI category, persons with low BMI had an elevated risk for SAH (adjusted hazard ratio [HR], 1.30 [1.09-1.55]), whereas no significant risk difference was found in high BMI category (HR, 0.91 [0.73-1.13]). However, we only found the increased risk of low BMI in smokers (HR, 1.49 [1.19-1.88]) and in hypertensive men (HR, 1.72 [1.18-2.50]), but not in nonsmokers (HR, 1.02 [0.76-1.37]) or in men with normal blood pressure values (HR, 0.98 [0.63-1.54]; interaction HRs, 1.68 [1.18-2.41], P=0.004 between low BMI and smoking and 1.76 [0.98-3.13], P=0.06 between low BMI and hypertension in men). Conclusions: Smoking and hypertension appear to explain, at least partly, the previously reported inverse association between BMI and the risk of SAH. Therefore, the independent role of BMI in the risk of SAH is likely modest.Peer reviewe

The impact of diet during adolescence on the neonatal health of offspring:evidence on the importance of preconception diet. The HUNT study

Emerging evidence suggests that parents’ nutritional status before and at the time of conception influences the lifelong physical and mental health of their child. Yet little is known about the relationship between diet in adolescence and the health of the next generation at birth. This study examined data from Norwegian cohorts to assess the relationship between dietary patterns in adolescence and neonatal outcomes. Data from adolescents who participated in the Nord-Trøndelag Health Study (Young-HUNT) were merged with birth data for their offspring through the Medical Birth Registry of Norway. Young-HUNT1 collected data from 8980 adolescents between 1995 and 1997. Linear regression was used to assess associations between adolescents’ diet and later neonatal outcomes of their offspring adjusting for sociodemographic factors. Analyses were replicated with data from the Young-HUNT3 cohort (dietary data collected from 2006 to 2008) and combined with Young-HUNT1 for pooled analyses. In Young-HUNT1, there was evidence of associations between dietary choices, meal patterns, and neonatal outcomes, these were similar in the pooled analyses but were attenuated to the point of nonsignificance in the smaller Young-HUNT3 cohort. Overall, energy-dense food products were associated with a small detrimental impact on some neonatal outcomes, whereas healthier food choices appeared protective. Our study suggests that there are causal links between consumption of healthy and unhealthy food and meal patterns in adolescence with neonatal outcomes for offspring some years later. The effects seen are small and will require even larger studies with more state-of-the-art dietary assessment to estimate these robustly

Global Characterisation of Coagulopathy in Isolated Traumatic Brain Injury (iTBI): A CENTER-TBI Analysis

Background - Trauma-induced coagulopathy in patients with traumatic brain injury (TBI) is associated with high rates of complications, unfavourable outcomes and mortality. The mechanism of the development of TBI-associated coagulopathy is poorly understood. Methods - This analysis, embedded in the prospective, multi-centred, observational Collaborative European NeuroTrauma Effectiveness Research in Traumatic Brain Injury (CENTER-TBI) study, aimed to characterise the coagulopathy of TBI. Emphasis was placed on the acute phase following TBI, primary on subgroups of patients with abnormal coagulation profile within 4 h of admission, and the impact of pre-injury anticoagulant and/or antiplatelet therapy. In order to minimise confounding factors, patients with isolated TBI (iTBI) (n = 598) were selected for this analysis. Results - Haemostatic disorders were observed in approximately 20% of iTBI patients. In a subgroup analysis, patients with pre-injury anticoagulant and/or antiplatelet therapy had a twice exacerbated coagulation profile as likely as those without premedication. This was in turn associated with increased rates of mortality and unfavourable outcome post-injury. A multivariate analysis of iTBI patients without pre-injury anticoagulant therapy identified several independent risk factors for coagulopathy which were present at hospital admission. Glasgow Coma Scale (GCS) less than or equal to 8, base excess (BE) less than or equal to − 6, hypothermia and hypotension increased risk significantly. Conclusion - Consideration of these factors enables early prediction and risk stratification of acute coagulopathy after TBI, thus guiding clinical management