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Featured researches published by Claudia Sikorski.


Journal of Affective Disorders | 2012

Age- and gender-specific prevalence of depression in latest-life – Systematic review and meta-analysis

Melanie Luppa; Claudia Sikorski; Tobias Luck; Lena Ehreke; Alexander Konnopka; Birgitt Wiese; Siegfried Weyerer; Hans-Helmut König; Sg Riedel-Heller

OBJECTIVE The objective of the study is to systematically analyze the prevalence of depression in latest life (75+), particularly focusing on age- and gender-specific rates across the latest-life age groups. DESIGN Relevant articles were identified by systematically searching the databases MEDLINE, Web of Science, Cochrane Library and Psycinfo and relevant literature from 1999 onwards was reviewed. Studies based on the community-based elderly population aged 75 years and older were included. Quality of studies was assessed. Meta-analysis was performed using random effects model. RESULTS 24 studies reporting age- and gender-specific prevalence of depression were found. 13 studies had a high to moderate methodical quality. The prevalence of major depression ranged from 4.6% to 9.3%, and that of depressive disorders from 4.5% to 37.4%. Pooled prevalence was 7.2% (95% CI 4.4-10.6%) for major depression and 17.1% (95% CI 9.7-26.1%) for depressive disorders. Potential sources of high heterogeneity of prevalence were study design, sampling strategy, study quality and applied diagnostics of latest life depression. CONCLUSIONS Despite the wide variation in estimates, it is evident that latest life depression is common. To reduce variability of study results, particularly sampling strategies (inclusion of nursing home residents and severe cognitively impaired individuals) for the old age study populations should be addressed more thoroughly in future research.


PLOS ONE | 2012

Obese Children, Adults and Senior Citizens in the Eyes of the General Public: Results of a Representative Study on Stigma and Causation of Obesity

Claudia Sikorski; Melanie Luppa; Elmar Brähler; Hans-Helmut König; Steffi G. Riedel-Heller

Obese individuals are blamed for their excess weight based on causal attribution to the individual. It is unclear whether obese individuals of different age groups and gender are faced with the same amount of stigmatization. This information is important in order to identify groups of individuals at risk for higher stigmatization and discrimination. A telephone interview was conducted in a representative sample of 3,003 participants. Experimental manipulation was realized by vignettes describing obese and normal-weight children, adults and senior citizens. Stigmatizing attitudes were measured by semantic differential. Causal attribution was assessed. Internal factors were rated with highest agreement rates as a cause for the vignettes obesity. Lack of activity behavior and eating too much are the most supported causes. Importance of causes differed for the different vignettes. For the child, external causes were considered more important. The overweight vignette was rated consistently more negatively. Higher educational attainment and personal obesity were associated with lower stigmatizing attitudes. The vignette of the obese child was rated more negatively compared to that of an adult or senior citizen. Obesity is seen as a controllable condition, but for children external factors are seen as well. Despite this finding, they are faced with higher stigmatizing attitudes in the general public, contradicting attribution theory assumptions. Internal and external attribution were found to be inter-correlated. Obese children are the population most at risk for being confronted with stigmatization, making them a target point in stigma-reduction campaigns.


BMC Health Services Research | 2012

Does GP training in depression care affect patient outcome? - A systematic review and meta-analysis

Claudia Sikorski; Melanie Luppa; Hans-Helmut König; Hendrik van den Bussche; Steffi G. Riedel-Heller

BackgroundPrimary care practices provide a gate-keeping function in many health care systems. Since depressive disorders are highly prevalent in primary care settings, reliable detection and diagnoses are a first step to enhance depression care for patients. Provider training is a self-evident approach to enhance detection, diagnoses and treatment options and might even lead to improved patient outcomes.MethodsA systematic literature search was conducted reviewing research studies providing training of general practitioners, published from 1999 until May 2011, available on the electronic databases Medline, Web of Science, PsycINFO and the Cochrane Library as well as national guidelines and health technology assessments (HTA).Results108 articles were fully assessed and 11 articles met the inclusion criteria and were included. Training of providers alone (even in a specific interventional method) did not result in improved patient outcomes. The additional implementation of guidelines and the use of more complex interventions in primary care yield a significant reduction in depressive symptomatology. The number of studies examining sole provider training is limited, and studies include different patient samples (new on-set cases vs. chronically depressed patients), which reduce comparability.ConclusionsThis is the first overview of randomized controlled trials introducing GP training for depression care. Provider training by itself does not seem to improve depression care; however, if combined with additional guidelines implementation, results are promising for new-onset depression patient samples. Additional organizational structure changes in form of collaborative care models are more likely to show effects on depression care.


International Journal of Geriatric Psychiatry | 2012

Prevalence and risk factors of depressive symptoms in latest life—results of the Leipzig Longitudinal Study of the Aged (LEILA 75+)

Melanie Luppa; Claudia Sikorski; Tobias Luck; Siegfried Weyerer; Arno Villringer; Hans-Helmut König; Steffi G. Riedel-Heller

Because the oldest old will be the fastest‐growing age group in the future and information about epidemiology of depressive symptoms in latest life is scarce, the present study aims at determining the age‐specific and gender‐specific prevalence rates and risk factors of depressive symptoms in latest life.


Psychiatrische Praxis | 2010

Quantität versus Qualität

Claudia Sikorski; Heide Glaesmer; Anke Bramesfeld

OBJECTIVE The aim of this study was to determine the percentage of qualitative and quantitative research papers on health services research in two German journals. METHODS All publications of the two journals were viewed. Only empirical research papers were included. It was then assessed whether they dealt with health services research and what methodology was used to collect and analyse data. RESULTS About half of all published empirical papers dealt with health services research. Of those, slightly over 20 % used qualitative methods at least partially. Ordered by topic, qualitative data collection and analysis is especially common in the fields of phenomenology, treatment determinants and treatment outcome. CONCLUSIONS Sole qualitative methodology is still used rather seldom in health services research. Attempts to include quantitative as well as qualitative approaches are limited to sequential design, lowering the independent value of both approaches. The concept of triangulation yields the possibility to overcome paradigm based dichotomies. However, the choice of methodology ought to be based primarily on the research question.


PLOS ONE | 2012

Public attitudes towards prevention of obesity.

Claudia Sikorski; Melanie Luppa; Georg Schomerus; Perla Werner; Hans-Helmut König; Steffi G. Riedel-Heller

Objective To investigate obesity prevention support in the German general public and to assess determinants of general prevention support as well as support of specific prevention measures. Methods This study was a cross-sectional analysis of a telephone based representative German study (3,003 subjects (52.8% women, mean age 51.9, s.d. = 18.0, range 18–97 years). Likert scale-based questions on general prevention support and support of specific measures were used. Furthermore willingness to take part in preventive programs and willingness to pay were assessed. Stigmatizing attitudes were assessed with the Fat Phobia Scale (FPS). Causation of obesity was differentiated in three dimensions (internal, e.g. lack of exercise; external, e.g. social surroundings; and genetic factors). Results Obesity prevention was perceived as possible (98.2%), however, almost exclusively lifestyle changes were named. Participants with higher stigmatizing attitudes were less likely to believe obesity prevention is possible. The majority of participants would take part in preventive programs (59.6%) and pay at least partially themselves (86.9%). Factor analysis revealed three dimensions of preventive measures: promoting healthy eating, restrictive and financial, governmental prevention efforts. In regard to these, promoting healthy eating was the most supported measure. Higher age, female gender and external causation were associated with higher support for all three dimensions of preventive measures. Only for governmental regulation, higher age was associated with lower support. Conclusion Obesity prevention support in Germany is high. Structural prevention efforts are supported by the majority of the general public in Germany. The vast majority proclaims willingness to pay themselves for programs of weight gain prevention. This could be an indication of higher perceived self-responsibility in the German system but also for risen “fear of fat” in the population due to media coverage. For Germany, the government and communities ought to be encouraged by these results to start the implementation of structural obesity prevention.


Scandinavian Journal of Public Health | 2012

Perception of overweight and obesity from different angles: a qualitative study.

Claudia Sikorski; Christiane Riedel; Melanie Luppa; Beate Schulze; Perla Werner; Hans-Helmut König; Steffi G. Riedel-Heller

Aims: Up to this date, the obesity pandemic has yet to be confined, with prevalence rates still rising in most countries. Aside from numerous negative consequences such as comorbid diseases and a reduction in life expectancy due to excessive bodyweight and the economic impact of obesity on healthcare systems, negative outcomes in overweight and obese individuals are also affected by perceived stigmatisation and discrimination. Knowledge of common views and perception overweight and obesity in the general public as well as in specific populations (e.g. healthcare professionals) is crucial in order to develop stigma-reduction interventions. The specific aim of the current study was to develop an appropriate questionnaire to be used in the survey to follow and further to enhance existing instruments. Methods: This qualitative study reports results from focus groups with normal-weight and overweight individuals as well as healthcare professionals. Results: Contents of the discussion of overweight and obesity did not differ substantially between the three groups. Results show that the definition of obesity in our focus groups is a subjective construct influenced mainly by aesthetics, sympathy, and activity. Within the groups, obesity was mainly seen as a controllable condition; however, external, such as societal, factors were named as well. In line with this and as expected from theoretical background, obese individuals are ascribed mainly negative attributions. Conclusions: With these results, this study enlightens lived realities of different groups of people. The results can be applied to improve existing instruments for the measurement of attitudes towards obesity.


PLOS ONE | 2012

Medical Students’ Attitudes towards Overweight and Obesity

Birte Pantenburg; Claudia Sikorski; Melanie Luppa; Georg Schomerus; Hans-Helmut König; Perla Werner; Steffi G. Riedel-Heller

Objective Studies from the USA have identified medical students as a major source of stigmatizing attitudes towards overweight and obese individuals. As data from Europe is scarce, medical students’ attitudes were investigated at the University of Leipzig in Leipzig, Germany. Design Cross-sectional survey containing an experimental manipulation consisting of a pair of vignettes depicting an obese and a normal weight 42-year-old woman, respectively. Vignettes were followed by the Fat Phobia Scale (FPS), a semantic differential assessing weight related attitudes. In case of the overweight vignette a panel of questions on causal attribution for the overweight preceded administration of the FPS. Subjects 671 medical students were enrolled at the University of Leipzig from May to June 2011. Results The overweight vignette was rated significantly more negative than the normal weight vignette (mean FPS score 3.65±0.45 versus 2.54±0.38, p<0.001). A higher proportion of students had negative attitudes towards the overweight as compared to the normal weight individual (98.9% versus 53.7%, p<0.001). A “positive energy balance” was perceived as the most relevant cause for the overweight, followed by “negligent personality trait”, “societal and social environment” and “biomedical causes”. Attributing a “positive energy balance” or “negligent personality trait” as relevant cause for the overweight was positively associated with negative attitudes. Conclusion The results of this study confirm and complement findings from other countries, mainly the USA, and indicate that weight bias in the health care setting may be a global issue. Stigmatizing attitudes towards overweight and obesity are prevalent among a sample of medical students at the University of Leipzig. Negative attitudes arise on the basis of holding the individual accountable for the excess weight. They call for bringing the topic of overweight and obesity more into the focus of the medical curriculum and for enhancing medical students’ awareness of the complex aetiology of this health condition.


Journal of Affective Disorders | 2014

The role of spousal loss in the development of depressive symptoms in the elderly — Implications for diagnostic systems

Claudia Sikorski; Melanie Luppa; Kathrin Heser; Annette Ernst; Carolin Lange; Jochen Werle; Horst Bickel; Edelgard Mösch; Birgitt Wiese; Jana Prokein; Angela Fuchs; Michael Pentzek; Hans-Helmut König; Christian Brettschneider; Martin Scherer; Wolfgang Maier; Siegfried Weyerer; Steffi G. Riedel-Heller

BACKGROUND In the revised version of the Diagnostic and Statistical Manual of Mental Disorders (DSM) the Mood Disorder Workgroup for DSM-V the bereavement exclusion criterion for the diagnosis of major depression has been eliminated. AIM To investigate the impact of bereavement on the incidence of depression and depressive symptoms in the elderly. METHOD Participants over 75 years from the longitudinal German Study on Ageing, Cognition, and Dementia in Primary Care Patients (AgeCoDe) that were still married at baseline were investigated (n=1,193). Data from four follow-ups (time frame: 6 years) were investigated. The response rate at baseline was 50.3%. Three clinical endpoints were analyzed: depressive symptoms according to Geriatric Depression Scale (1) GDS≥6, (2) GDS≥10, and (3) Major Depression (MD). The effect of loss was investigated using random-effects regression models. RESULTS Experiencing a loss of spouse was predictive of a higher incidence in GDS≥6 (OR 4.52, 95% CI 2.6-7.9) and 10 (OR 5.59, 95% CI 1.8-17.0) even after adjusting for age, gender, impairment at baseline, and GDS score at baseline. Associations with MD were not significant (OR 1.77, 96% CI 0.9-3.5). CONCLUSIONS Older adults experiencing the loss of their spouse are more likely to display elevated levels of depressive symptoms, that may reach a concerning level of severity.


Journal of Affective Disorders | 2013

The relationship between social integration and depression in non-demented primary care patients aged 75 years and older

Michaela Schwarzbach; Melanie Luppa; Claudia Sikorski; Angela Fuchs; Wolfgang Maier; Hendrik van den Bussche; Michael Pentzek; Steffi G. Riedel-Heller

BACKGROUND Social integration seems to be associated with depression in late life. But the measurement of social integration still lacks a strong consensus. To date in most studies the different domains of social integration have been examined separately. AIMS In order to improve comparability among studies, we used the social integration index (SII), which covers all domains of social integration, to examine the association of social integration and depression in non-demented primary care patients aged 75 years and older. METHOD Data were derived from the longitudinal German study on Aging, Cognition and Dementia in primary care patients. Included in the cross-sectional survey were 1028 non-demented subjects aged 75 years and older. The GDS-15 Geriatric Depression Scale was used to measure depression with a threshold of ≥6. Associations of the SII and further potential risk factors and depression were analysed using multivariate logistic regression models. RESULTS The SII was significantly associated with depression in the elderly. After full adjustment for all variables, odds of depression were significantly higher for lower levels of the SII, having a care level, impaired vision and mobility and subjective memory complaints. CONCLUSION Because the social integration index covers several aspects of social integration, the results seem to be more significant than considering only one of these domains alone. Further research is needed to prove the practicability of the social integration index and to supply the literature with consistent results regarding the association of social integration and depression. Elderly with depression could benefit from increased social networks and enhanced social integration, which points to the development of social programs and social policies that maximize the engagement of older adults in social activities and volunteer roles.

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