<p><i>Objective</i>: To estimate current food intake in the population of northern Norway and to investigate the impact of self-perceived Sami ethnicity and region of residence on food intake.</p> <p><i>Design</i>: The data are part of the second cross-sectional survey of the Population-based Study on Health and Living Conditions in Regions with Sami and Norwegian Populations (the SAMINOR 2 ...

<p><i>Introduction</i>: Maternal age is an established risk factor for cesarean section; epidural analgesia and oxytocin augmentation may modify this association. We investigated the effects and interactions of oxytocin augmentation, epidural analgesia and maternal age on the risk of cesarean section.</p> <p><i>Material and methods</i>: In all, 416 386 nulliparous women with spontaneous onset of ...

<i>Introduction - </i>In this study, we examined changes in depot medroxyprogesterone acetate (DMPA) prescriptions over a time‐period when new professions started prescribing, and when the method gained some negative media attention.<br><br> <i>Material and methods - </i>The Norwegian Prescription Database provided data on hormonal contraception from 2006 through 2012. We estimated the annual number ...

Several researchers have raised the concern that the cross-sectional association of retrospectively reported childhood adversity with self-reported onset of asthma and chronic bronchitis in adulthood may be confounded, as well as mediated by an individual's mental health. The aim of this study was to assess the effect of retrospectively reported childhood adversity on self-reported onset of asthma ...

While most early childhood education and care (ECEC) programs taken to scale in the United States have served socially disadvantaged 3- to 5-years-olds, Norway scaled up universal ECEC from age 1. We investigated the consequences of Norway’s universal ECEC scale-up for children’s early language skills, exploiting variation in ECEC coverage across birth cohorts and municipalities in a population-based ...

We aimed to investigate physical activity (PA) and risk of different histological subtypes of lung cancer according to smoking status and body mass index using repeated measurements in a large cohort of women in Norway. The study sample for the multiple imputation analyses consisted of 86,499 and for the complete-case analysis 80,802 women. Repeated measurements of PA level, smoking habits, weight, ...

Physical activity and overweight are associated with myocardial infarction (MI). However, their joint association with MI remains unclear. Our objective was to examine the independent and joint association between leisuretime physical activity (LTPA), body mass index (BMI) and MI. This prospective cohort study included 16,572 men and women (47.5% women) aged 20–54 years who took part in the second ...

<i>Aim:</i> To identify factors associated with high weight gain and obesity duration in a representative sample of Norwegian women.<p> <p><i>Methods</i>: 66,618 Norwegian women aged 34–70 years at baseline were included in the analysis. Baseline and follow-up questionnaires completed in 1991–2011 provided information on height, weight as well as sociodemographic, lifestyle and reproductive ...

Polychlorinated biphenyls (PCBs) can be used as chemical sentinels for the assessment of anthropogenic influences on Arctic environmental change. We present an overview of studies on PCBs in the Arctic and combine these with the findings from ArcRisk—a major European Union-funded project aimed at examining the effects of climate change on the transport of contaminants to and their behaviour of in ...

Breastmilk covers all the nutritional needs of the infant the first months of life, with the exception of vitamin D. In addition, breastmilk has a number of protective properties. However, as humans are exposed to polluting chemicals through food, air, water and skin contact, breastmilk also contains contaminants. Taking the present-day levels of contaminants in Norwegian breastmilk and the long ...