Los barrios de Badalona a partir de la encuesta estadística de población 1996

Nuestro estudio consiste en un análisis socioeconómico descriptivo de Badalona, a partir de la información obtenida en la Estadistica de población de 1996. El interés de este análisis se centra especialmente en los barrios, más que en los individuos. El objetivo es construir una tipología de barrios según las características socioeconómicas de su población. 1.2 Población de estudio La población que vamos a estudiar son los habitantes de Badalona de 15 años o más y que habitan en un tipo de vivienda familiar (no colectivo). El límite de edad es debido a que nuestras variables de estudio tienen interés en población más bien adulta, y hemos eliminado los menores de 15 porque se corresponde con el primer gran grupo de edad según la categorización que hemos utilizado en nuestro análisis. Hemos descartado el tipo de vivienda colectiva porque son grupos numerosos de personas con las mismas características y, en caso de que fuesen muchos en un determinado barrio, podría sesgar el valor de alguna variable. Estas personas se comportan de manera homogénea entre ellos, pero diferente con el resto de los habitantes. Por ejemplo, si en un barrio hubiera un convento, entonces los resultados que obtengamos estarán muy condicionados por las características de ese convento, y no se reflejará bien la tipología del barrio (p. ej.: podría haber una proporción desequilibrada entre ambos sexos, excesiva proporción de solteros, etc.

Los barrios de Badalona a partir de la encuesta estadística de población 1996

Nuestro estudio consiste en un análisis socioeconómico descriptivo de Badalona, a partir de la información obtenida en la Estadistica de población de 1996. El interés de este análisis se centra especialmente en los barrios, más que en los individuos. El objetivo es construir una tipología de barrios según las características socioeconómicas de su población. 1.2 Población de estudio La población que vamos a estudiar son los habitantes de Badalona de 15 años o más y que habitan en un tipo de vivienda familiar (no colectivo). El límite de edad es debido a que nuestras variables de estudio tienen interés en población más bien adulta, y hemos eliminado los menores de 15 porque se corresponde con el primer gran grupo de edad según la categorización que hemos utilizado en nuestro análisis. Hemos descartado el tipo de vivienda colectiva porque son grupos numerosos de personas con las mismas características y, en caso de que fuesen muchos en un determinado barrio, podría sesgar el valor de alguna variable. Estas personas se comportan de manera homogénea entre ellos, pero diferente con el resto de los habitantes. Por ejemplo, si en un barrio hubiera un convento, entonces los resultados que obtengamos estarán muy condicionados por las características de ese convento, y no se reflejará bien la tipología del barrio (p. ej.: podría haber una proporción desequilibrada entre ambos sexos, excesiva proporción de solteros, etc.

Adolescents' mental health problems increase after parental divorce, not before, and persist until adulthood:a longitudinal TRAILS study

Parental divorce is one of the most stressful life events for youth and is often associated with (long-lasting) emotional and behavioral problems (EBP). However, not much is known about the timing of the emergence of these EBP in adolescents relative to the moment of parental divorce, and its longitudinal effects. We therefore assessed this timing of EBP in adolescents of divorce and its longitudinal effects. We used the first four waves of the TRacking Adolescent's Individual Lives Survey (TRAILS) cohort, which included 2230 10-12 years olds at baseline. EBP were measured through the Youth Self-Report (YSR), as internalizing and externalizing problems. We applied multilevel analysis to assess the effect of divorce on EBP. The levels of both internalizing and externalizing problems were significantly higher in the period after parental divorce (beta = 0.03, and 0.03, respectively; p <0.05), but not in the period before divorce, with a persistent and increasing effect over the follow-up periods compared to adolescents not experiencing divorce. Adolescents tend to develop more EBP in the period after parental divorce, not before. These effects are long-lasting and underline the need for better care for children with divorcing parents

Variance constraints strongly influenced model performance in growth mixture modeling:a simulation and empirical study

BACKGROUND: Growth Mixture Modeling (GMM) is commonly used to group individuals on their development over time, but convergence issues and impossible values are common. This can result in unreliable model estimates. Constraining variance parameters across classes or over time can solve these issues, but can also seriously bias estimates if variances differ. We aimed to determine which variance parameters can best be constrained in Growth Mixture Modeling. METHODS: To identify the variance constraints that lead to the best performance for different sample sizes, we conducted a simulation study and next verified our results with the TRacking Adolescent Individuals' Lives Survey (TRAILS) cohort. RESULTS: If variance parameters differed across classes and over time, fitting a model without constraints led to the best results. No constrained model consistently performed well. However, the model that constrained the random effect variance and residual variances across classes consistently performed very poorly. For a small sample size (N = 100) all models showed issues. In TRAILS, the same model showed substantially different results from the other models and performed poorly in terms of model fit. CONCLUSIONS: If possible, a Growth Mixture Model should be fit without any constraints on variance parameters. If not, we recommend to try different variance specifications and to not solely rely on the default model, which constrains random effect variances and residual variances across classes. The variance structure must always be reported Researchers should carefully follow the GRoLTS-Checklist when analyzing and reporting trajectory analyses

Socioeconomic Health Inequalities in Adolescent Metabolic Syndrome and Depression:No Mediation by Parental Depression and Parenting Style

We assessed to what extent parental depression and parenting style mediate the relationships between different measures of parental socioeconomic status (SES) and both depression and metabolic syndrome (MetS) in adolescents, and whether sex moderates these mechanisms. Data were from the prospective multigenerational Dutch Lifelines Cohort Study. Our sample consisted of 1217 adolescents with an average follow-up of 33.3 (SD = 7.33) months and a median baseline age of 13 (IQR:13–14) years. We used structural equation models to assess the direct and indirect effects of SES on baseline and changes at follow-up in both depression and MetS, and to assess moderation by sex. For each additional year of education, continuous MetS scores were 0.098 (95%CI: 0.020; 0.184) units lower at baseline and decreased 0.079 (95%CI: 0.004; 0.158) units at follow-up. No other direct or indirect effects of SES were found, and there was no moderation by sex. Additionally, warmer parenting style was generally associated with more favorable outcome scores. Therefore, improving parenting style may improve health for all adolescents. However, in this study parental depression and parenting style did not account for adolescent socioeconomic health inequalities. This may be partly due to good access to social services within the Netherlands

On the Computation of the Trace Form of Some Galois Extensions

AbstractWe investigate the trace form trL/K:L→K:x↦trL/Kx2of a finite Galois extensionL/K. In particular, we study 2-extensions of degree ≤16. Using some reduction theorems, these results yield a classification of nearly all trace forms of Galois extensions of degree ≤31. Finally, we study the trace form of a cyclotomic extension and of its maximal real subfield

A capital-based approach to better understand health inequalities: Theoretical and empirical explorations

Background: The persistence of health inequalities may be driven by differences in education and income, but also by other economic and non-economic factors. Our aim was to explore how the association between single-dimensional health and socioeconomic status (SES) changes when including health-related person capital, economic capital, social capital, cultural capital and attractiveness and personality capital. Methods: We used a capital-based approach to understand health inequalities. It presumes intertwined relationships between broadly measured health (‘health-related person capital’) and embodied resources (‘attractiveness and personality capital’) on the one hand, and ESC capital, i.e., economic, social, and cultural resources on the other. We used cross-sectional data on 152,592 participants from the Dutch Lifelines cohort study and estimated correlations using partial least squares structural equation modelling. Results: The correlation between SES and health-related person capital (r = 0.15) was stronger than the correlations between SES and single-dimensional health (physical and mental health; r = 0.12 and r = 0.04, respectively). ESC capital, combining economic, social and cultural capital, showed a correlation of 0.34 with health-related person capital. This was stronger than the correlation between health-related person capital and economic capital alone (r = 0.19). Lastly, the correlation between health-related person capital and ESC capital increased when health related, attractiveness and personality resources were combined into a single person capital construct (from r = 0.34 to r = 0.49). Conclusions: This exploratory study shows the empirical interconnectedness of various types of resources, and their potential role in the persistence of health inequalities. Our findings corroborate the idea of considering health as a multidimensional concept, and to extend conventional SES indicators to a broader measurement of economic and non-economic resources

Benefit finding in renal transplantation and its association with psychological and clinical correlates:A prospective study

OBJECTIVES: The identification of positive psychological changes, including benefit finding (BF), in chronic illness has gained substantial interest. However, less is known about BF in the context of a positive medical intervention. End-stage renal disease (ESRD) can be regarded as a burdensome condition, but transplantation is expected to restore physical and psychological functioning to a large extent after a period of illness. The aim of this study was to examine (1) changes in BF from pre- to 12 months post-transplantation, (2) the concurrent association of disease-related characteristics and optimism to BF, and (3) the potential causal relations between BF and distress. METHODS: In this longitudinal study, 319 patients completed questionnaires before, 3 months, 6 months, and/or 12 months post-transplantation. Multilevel models were used for the analyses. Measures included the Illness Cognitions Questionnaire to measure BF, the Life Orientation Test to measure optimism, and the General Health Questionnaire to measure distress. RESULTS: Benefit finding increased from pre- to post-transplantation. Fewer symptoms and comorbidities, and more optimism, were related to more BF over all time-points. The direction of the relation between BF and distress changed over time. Before transplantation, distress predicted an increase in BF, whereas post-transplantation, distress predicted a decrease in BF. The causal relation between BF and distress post-transplantation appeared to be reciprocal. CONCLUSIONS: A positive medical intervention such as renal transplantation might facilitate the development of BF. This study indicates the need for longitudinal research on the relation between BF and psychological health in the face of positive events. Statement of contribution What is already known on this subject? Benefit finding refers to the identification of positive psychological changes following a negative life event. Individuals can experience benefit finding following chronic illness. The positive event of kidney transplantation is associated with improvements in patients' physical and psychological functioning. What does this study add? Benefit finding increases from pre- to post-kidney transplantation. Fewer symptoms and comorbidities, and higher optimism are related to more benefit finding. Before transplantation, distress predicts an increase in benefit finding. After transplantation, there appears to be a reciprocal relation between distress and benefit finding such that distress predicts a decrease in benefit finding and benefit finding predicts a decrease in distress

Effectiveness of a Comprehensive Health Literacy Consultation Skills Training for Undergraduate Medical Students:A Randomized Controlled Trial

Comprehensible communication by itself is not sufficient to overcome health literacy related problems. Future doctors need a larger scope of capacities in order to strengthen a patient's autonomy, participation, and self-management abilities. To date, such comprehensive training-interventions are rarely embedded in curricula, nor systematically evaluated. We assessed whether comprehensive training increased these health literacy competencies, in a randomized controlled trial (RCT), with a waiting list condition. Participants were international undergraduate medical students of a Dutch medical faculty (intervention: 39; control: 40). The 11-h-training-intervention encompassed a health literacy lecture and five interactive small-group sessions to practise gathering information and providing comprehensible information, shared decision-making, and enabling of self-management using role-play and videotaped conversations. We assessed self-reported competencies (knowledge and awareness of health literacy, attitude, self-efficacy, and ability to use patient-centred communication techniques) at baseline, after a five and ten-week follow-up. We compared students' competencies using multi-level analysis, adjusted for baseline. As validation, we evaluated demonstrated skills in videotaped consultations for a subsample. The group of students who received the training intervention reported significantly greater health literacy competencies, which persisted up to five weeks afterwards. Increase was greatest for providing comprehensible information (B: 1.50; 95% confidence interval, CI 1.15 to 1.84), shared decision-making (B: 1.08; 95% CI 0.60 to 1.55), and self-management (B: 1.21; 95% CI 0.61 to 1.80). Effects regarding demonstrated skills confirmed self-rated competency improvement. This training enhanced a larger scope of health literacy competences and was well received by medical students. Implementation and further evaluation of this training in education and clinical practice can support sustainable health literacy capacity building of future doctors and contribute to better patient empowerment and outcomes of consultations

Accelerometer Measured Sedentary and Physical Activity Behaviors of Working Patients after Total Knee Arthroplasty, and their Compensation Between Occupational and Leisure Time

Purpose Objective measurements of sedentary and physical activity (PA) behavior are scarce among working-age patients who undergo total knee arthroplasty (TKA). Aim was to assess sedentary and PA behaviors using accelerometers and to identify compensation effects between occupational and leisure time of sedentary and PA behavior. Methods One year post-TKA, 51 patients wore an ActiGraph(GT3x) accelerometer for 7 days. Sedentary time, prolonged sedentary bouts (≥ 30 min) and PA (light-intensity and moderate-to-vigorous PA) were examined. Compliance with the guideline of > 150 min moderate-to-vigorous PA per week was calculated. Compensation effects were analyzed using multilevel models, splitting effects into routine and within-day compensation, stratifying by physical and non-physical jobs. The routine compensation effects are the ones of interest, representing habitual compensation during a week. Results Participants spent 60% of time in sedentary bouts and 17% in prolonged sedentary bouts, with 37% of PA spent in light-intensity and 3% in moderate-to-vigorous activity. About 70% of patients met the PA guideline. Routine compensation effects were found for workers in physical jobs, who compensated for their occupational light-intensity PA with less light-intensity PA during leisure time. Workers in non-physical jobs did not compensate for their occupational prolonged sedentary bouts, as these continued during leisure time. Conclusion This study showed that working TKA patients are highly sedentary 1 year after surgery, but most met the PA guideline. Especially those with non-physical jobs do not compensate for their occupational prolonged sedentary bouts. This stresses the need to stimulate PA among TKA patients not complying with the guidelines and those with non-physical jobs