Validity of self-reported educational level in the Tromsø Study

Education Levels and Poststroke Cognitive Trajectories

Importance

Acute stroke is associated with accelerated, years-long cognitive decline. Whether education levels are associated with faster cognitive decline after stroke is unclear.

Objective

To evaluate the association of education level with poststroke cognitive decline and to determine whether age at stroke modifies the association.

Design, Setting, and Participants

Individual participant data meta-analysis of 4 US cohort studies (January 1971 to December 2019). Analysis began August 2022 and was completed in January 2024.

Exposures

Education level (less than high school, completed high school, some college, and college graduate).

Main Outcomes and Measures

Harmonized cognitive outcomes were global cognition (primary outcome), memory, and executive function. Outcomes were standardized as t scores (mean [SD], 50 [10]); a 1-point difference represents a 0.1-SD difference in cognition, with higher score representing better function. Linear mixed-effect models estimated the trajectory of cognitive decline after incident stroke.

Results

The analysis included 2019 initially dementia-free stroke survivors (1048 female [51.9%]; median [IQR] age at stroke, 74.8 [69.0-80.4] years; 339 with less than a high school education [16.7%]; 613 who completed high school [30.4%]; 484 with some college [24.0%]; 583 with a college degree or higher [28.9%]). Median (IQR) follow-up time after stroke was 4.1 (1.8-7.2) years. Compared with those with less than a high school degree, college graduates had higher initial poststroke performance in global cognition (1.09 points higher; 95% CI, 0.02 to 2.17 points higher), executive function (1.81 points higher; 95%CI, 0.38 to 3.24 points higher), and memory (0.99 points higher; 95% CI, 0.02 to 1.96 points higher). Compared with stroke survivors with less than a high school education, there was a faster decline in executive function among college graduates (-0.44 points/y faster; 95% CI, -0.69 to -0.18 points/y faster) and those with some college education(-0.30 points/y faster; 95% CI, -0.57 to -0.03 points/y faster). Education level was not associated with declines in global cognition or memory. Age did not modify the association of education with cognitive decline.

Conclusions and Relevance

In this pooled cohort study, the trajectory of cognitive decline after stroke varied by education level and cognitive domain, suggesting that stroke survivors with a higher education level may have greater cognitive reserve but steeper decline in executive function than those with a lower education level.

Longitudinal cholesterol trends across socioeconomic groups in Norway: the influence of lipid-lowering drugs in the population-based Tromsø Study 1994-2016

OBJECTIVES

There is limited evidence regarding the impact of lipid-lowering drugs (LLDs) on the socioeconomic gradient in a longitudinal perspective. The study investigates the longitudinal socioeconomic gradient in total cholesterol levels and whether this is affected by the use of LLDs.

DESIGN

Population-based cohort study.

SETTING

Sample from adult inhabitants of Tromsø municipality, Norway, who participated in the Tromsø Study (1994-2016).

PARTICIPANTS

17 550 participants of the population-based Tromsø Study in 1994-1995 who were non-users of LLD, aged 25-78 years at baseline and who attended one or more of three subsequent surveys in 2001, 2007-2008 and 2015-2016 were included in the study.

OUTCOME MEASURE

Socioeconomic gradient in total cholesterol levels was compared among participants treated and not treated with LLDs during the observation period.

RESULTS

The total cholesterol levels across all educational groups increased from 1994-1995 to 2015-2016 among untreated women (+0.33 mmol/L to +0.48 mmol/L), except for those with primary education (-0.12 mmol/L). Total cholesterol levels decreased among untreated men (-0.40 mmol/L to -0.06 mmol/L, from lowest education to highest education), treated women (-1.88 mmol/L to -1.35 mmol/L) and men (-2.21 mmol/L to -1.84 mmol/L) across all educational groups. At baseline, we observed a significant inverse association between education and total cholesterol levels among non-users of LLDs. There was no clear educational gradient in total cholesterol levels among users of LLDs.

CONCLUSIONS

Users of LLDs experienced a more substantial decrease in total cholesterol levels over time compared with non-users. The educational gradient in total cholesterol levels observed among non-users of LLD was not apparent among users.

Does the association between adiposity measures and pre-frailty among older adults vary by social position? Findings from the Tromsø study 2015/2016

INTRODUCTION

Pre-frailty provides an ideal opportunity to prevent physical frailty and promote healthy ageing. Excess adiposity has been associated with an increased risk of pre-frailty, but limited studies have explored whether the association between adiposity measures and pre-frailty varies by social position.

METHODS

We used data from the seventh survey of the Tromsø Study (Tromsø7) conducted in 2015-2016. Our primary sample consisted of 2,945 women and 2,794 men aged ≥ 65 years. Pre-frailty was defined as the presence of one or two of the five frailty components: low grip strength, slow walking speed, exhaustion, unintentional weight loss and low physical activity. Adiposity was defined by body mass index (BMI), waist circumference (WC), fat mass index (FMI) and visceral adipose tissue (VAT) mass. Education and subjective social position were used as measures of social position. Poisson regression with robust variance was used to assess the association between adiposity measures and pre-frailty, and the interaction term between adiposity measures and social position measures were utilised to explore whether the association varied by social position.

RESULTS

In our sample, 28.7% of women and 25.5% of men were pre-frail. We found sub-multiplicative interaction of BMI-defined obesity with education in women and subjective social position in men with respect to development of pre-frailty. No other adiposity measures showed significant variation by education or subjective social position. Regardless of the levels of education or subjective social position, participants with excess adiposity (high BMI, high WC, high FMI and high VAT mass) had a higher risk of pre-frailty compared to those with low adiposity.

CONCLUSION

We consistently observed that women and men with excess adiposity had a greater risk of pre-frailty than those with low adiposity, with only slight variation by social position. These results emphasize the importance of preventing excess adiposity to promote healthy ageing and prevent frailty among all older adults across social strata.

Social inequality in prevalence of NCD risk factors: a cross-sectional analysis from the population-based Tromsø Study 2015-2016

OBJECTIVE

We aimed to examine associations between educational level, serving as an indicator of socioeconomic position, and prevalence of WHO-established leading behavioural and biological risk factors for non-communicable diseases (NCDs), in middle-aged to older women and men.

DESIGN

Population-based cross-sectional study.

SETTING

All inhabitants of the municipality of Tromsø, Norway, aged ≥40 years, were invited to the seventh survey (2015-2016) of the Tromsø Study; an ongoing population-based cohort study.

PARTICIPANTS

Of the 32 591 invited; 65% attended, and a total of 21 069 women (53%) and men aged 40-99 years were included in our study.

OUTCOME MEASURES

We assessed associations between educational level and NCD behavioural and biological risk factors: daily smoking, physical inactivity (sedentary in leisure time), insufficient fruit/vegetable intake (<5 units/day), harmful alcohol use (>10 g/day in women, >20 g/day in men), hypertension, obesity, intermediate hyperglycaemia and hypercholesterolaemia. These were expressed as odds ratios (OR) per unit decrease in educational level, with 95% CIs, in women and men.

RESULTS

In women (results were not significantly different in men), we observed statistically significant associations between lower educational levels and higher odds of daily smoking (OR 1.69; 95% CI 1.60 to 1.78), physical inactivity (OR 1.38; 95% CI 1.31 to 1.46), insufficient fruit/vegetable intake (OR 1.54, 95% CI 1.43 to 1.66), hypertension (OR 1.25; 95% CI 1.20 to 1.30), obesity (OR 1.23; 95% CI 1.18 to 1.29), intermediate hyperglycaemia (OR 1.12; 95% CI 1.06 to 1.19), and hypercholesterolaemia (OR 1.07; 95% CI 1.03 to 1.12), and lower odds of harmful alcohol use (OR 0.75; 95% CI 0.72 to 0.78).

CONCLUSION

We found statistically significant educational gradients in women and men for all WHO-established leading NCD risk factors within a Nordic middle-aged to older general population. The prevalence of all risk factors increased at lower educational levels, except for harmful alcohol use, which increased at higher educational levels.

Norwegian nurse educators' self-rating of competencies: a nationwide cross-sectional web-survey

BACKGROUND

Nurse educators' competencies play a crucial role in the educational quality of nurses.

OBJECTIVE

This study aimed to investigate how Norwegian nurse educators self-rated their competence domains, and how these competencies were associated background variables.

METHODS

The study was designed as a cross-sectional web-survey, and n=154 participated and filled out the Evaluation of Requirements of Nurse Teachers (ERNT) instrument. Educators' mean working experience was 12.9 years (SD 9.2); 86.3 % were permanently employed and 76.8 % had formal supervision training.

RESULTS

The nurse educators rated their competence as good on all competence domains and single competence items, and ERNT total mean score was 4.62 (SD 0.28), with relationship with the students rated highest and personality factors rated lowest. The ERNT total mean score was significantly related to academic degree.

CONCLUSIONS

Educational leaders in nursing education are recommended to establish a mentoring and supporting team for their educators.

Are relative educational inequalities in multiple health behaviors widening? A longitudinal study of middle-aged adults in Northern Norway

Introduction

Educational inequality in multiple health behaviors is rarely monitored using data from the same individuals as they age. The aim of this study is to research changes in relative educational inequality in multiple variables related to health behavior (smoking, physical activity, alcohol intake, and body mass index), separately and collectively (healthy lifestyle), among middle-aged adults living in Northern Norway.

Methods

Data from adult respondents aged 32-87 in 2008 with repeated measurements in 2016 (N = 8,906) were drawn from the sixth and seventh waves of the Tromsø Study. Logistic regression was used to assess the relative educational inequality in the variables related to health behavior. The analyses were performed for the total sample and separately for women and men at both baseline and follow-up.

Results

Educational inequality was observed in all the variables related to health behavior at baseline and follow-up, in both men and women. Higher levels of educational attainment were associated with healthier categories (non-daily smoking, physical activity, normal body mass index, and a healthy lifestyle), but also with high alcohol intake. The prevalence of daily smoking and physical inactivity decreased during the surveyed period, while high alcohol intake, having a body mass index outside of the normal range and adhering to multiple health recommendations simultaneously increased. The magnitude of relative educational inequality measured at baseline increased at the follow-up in all the variables related to health behavior. Differences were larger among women when compared to men, except in physical inactivity.

Conclusion

Persistent and increasing relative disparities in health behavior between the highest education level and lower education levels are found in countries with well-established and comprehensive welfare systems like Norway. Addressing these inequalities is essential for reducing both the chronic disease burden and educational disparities in health.

Education Level and Self-Reported Cardiovascular Disease in Norway-The Tromsø Study, 1994-2016

BACKGROUND

Cardiovascular disease (CVD) is a leading source of morbidity and mortality, and research has shown education level to be a risk factor for the disease. The aim of this study was to investigate the association between education level and self-reported CVD in Tromsø, Norway.

METHODS

This prospective cohort study included 12,400 participants enrolled in the fourth and seventh surveys of the Tromsø Study (Tromsø4 and Tromsø7) in 1994-1995 and 2015-2016, respectively. Logistic regression was used to obtain odds ratios (ORs) and 95% confidence intervals (CIs).

RESULTS

For every 1-level increase in education, the age-adjusted risk of self-reported CVD decreased by 9% (OR = 0.91, 95% CI: 0.87-0.96), but after adjustment for covariates, the association was weaker (OR = 0.96, 95% CI: 0.92-1.01). The association was stronger for women (OR = 0.86, 95% CI: 0.79-0.94) than men (OR = 0.91, 95% CI: 0.86-0.97) in age-adjusted models. After adjustment for covariates, the associations for women and men were similarly weak (women: OR = 0.95, 95% CI: 0.87-1.04; men: OR = 0.97, 95% CI: 0.91-1.03). In age-adjusted-models, higher education level was associated with a lower risk of self-reported heart attack (OR = 0.90, 95% CI: 0.84-0.96), but not stroke (OR = 0.97, 95% CI: 0.90-1.05) or angina (OR = 0.98, 95% CI: 0.90-1.07). There were no clear associations observed in the multivariable models for CVD components (heart attack: OR = 0.97, 95% CI: 0.91-1.05; stroke: OR = 1.01, 95% CI: 0.93-1.09; angina: OR = 1.04, 95% CI: 0.95-1.14).

CONCLUSIONS

Norwegian adults with a higher education level were at lower risk of self-reported CVD. The association was present in both genders, with a lower risk observed in women than men. After accounting for lifestyle factors, there was no clear association between education level and self-reported CVD, likely due to covariates acting as mediators.

Self-reported medication information needs among medication users in a general population aged 40 years and above - the Tromsø study

PURPOSE

To determine the prevalence and associated factors of self-reported medication information needs among medication users in a general population aged 40 years and above - The Tromsø Study.

METHODS

Cross-sectional study of medication users (n = 10,231) among participants in the Tromsø Study, a descriptive analysis of questionnaire data and multivariable logistic regression (n = 9,194).

RESULTS

Sixteen percent of medication users expressed a need for more information about own medications. Overall, medication users agreed to a higher degree to have received information from the GP compared to the pharmacy. Concerned medication users and those disagreeing to have received information about side effects had the highest odds for needing more information (OR 5.07, 95% CI 4.43-5.81) and (OR 2.21, 95% CI 1.83-2.68), respectively. Medication users who used heart medications (e.g., nitroglycerin, antiarrhythmics, anticoagulants) (OR 1.71, 95% CI 1.46-2.01), medication for hypothyroidism (OR 1.36, 95% CI 1.13-1.64) or had moderately health anxiety had expressed need for medication information. Whereas medication users with lower education, those that never used internet to search for health advice, and medication users who disagreed to have received information about reason-for-use were associated with lower odds (OR 0.75, 95% CI 0.62-0.91), (OR 0.85, 95% CI 0.74-0.98) and (OR 0.68, 95% CI 0.53-0.88), respectively.

CONCLUSION

This study demonstrated that there is need for more information about own medications in a general population aged 40 years and above and shed light on several characteristics of medication users with expressed information need which is important when tailoring the right information to the right person.