Check your outliers! An introduction to identifying statistical outliers in R with easystats.

Beyond the challenge of keeping up to date with current best practices regarding the diagnosis and treatment of outliers, an additional difficulty arises concerning the mathematical implementation of the recommended methods. Here, we provide an overview of current recommendations and best practices and demonstrate how they can easily and conveniently be implemented in the R statistical computing software, using the {performance} package of the easystats ecosystem. We cover univariate, multivariate, and model-based statistical outlier detection methods, their recommended threshold, standard output, and plotting methods. We conclude by reviewing the different theoretical types of outliers, whether to exclude or winsorize them, and the importance of transparency. A preprint of this paper is available at: 10.31234/osf.io/bu6nt.

The significance of cerebrospinal fluid analysis in the differential diagnosis of 564 psychiatric patients: Multiple sclerosis is more common than autoimmune-encephalitis.

The analysis of cerebrospinal fluid (CSF) is an essential tool for the differential diagnosis of psychiatric disorders caused by autoimmune inflammation or infections. Clear guidelines for CSF analysis are limited and mainly available for schizophrenia and dementia. Thus, insights into CSF changes in psychiatric patients largely derive from research. We analyzed the clinical and CSF data of 564 psychiatric patients without pre-existing neurological diagnoses from March 1998 to April 2020. Primary aim was to detect previously undiagnosed neurological conditions as underlying cause for the psychiatric disorder. Following CSF analysis, 8 % of patients (47/564) were diagnosed with a neurological disorder. This was the case in 12.0 % (23/193) of patients with affective disorders, 7.2 % (19/262) of patients with schizophrenia, and 4.0 % (23/193) of patients with anxiety disorders. The predominant new diagnoses were multiple sclerosis (19/47) and autoimmune encephalitis (10/47). Abnormal CSF findings without any implications for further treatment were detected in 17.0 % (94/564) of patients. Our data indicates that CSF analysis in patients suffering from psychiatric disorders may uncover underlying organic causes, most commonly multiple sclerosis and autoimmune encephalitis. Our findings imply that the incorporation of CSF analysis in routine psychiatric assessments is potentially beneficial.

Public knowledge and beliefs about the irritable bowel syndrome - results from the SOMA.SOC study.

BACKGROUND: Despite the epidemiological and economic relevance of the irritable bowel syndrome (IBS), there is a lack of research on what the general public knows and thinks about this condition (IBS literacy). Therefore, the aim of this study was to explore public knowledge and beliefs about IBS in Germany. Moreover, associations of knowledge and beliefs about IBS with socio-demographic characteristics as well as illness and treatment experiences were analysed. METHODS: Analyses made use of a national telephone survey (N = 1,205). A carefully developed vignette describing a person with typical symptoms of IBS was presented. Respondents were then asked to name the disease in question and beliefs about causes and treatment options were assessed. For the analyses respondents were divided into three groups: (1) people who never had IBS symptoms, (2) people who had or have IBS symptoms but never were in treatment and (3) individuals who reported to be or have been treated for IBS symptoms. RESULTS: Less than 4% of the respondents recognized IBS after presentation of the vignette. About 75% positively evaluated treatability while psychotherapy was evaluated more effective than medication. Stress and unhealthy lifestyle were the most frequently endorsed possible causes of the presented IBS symptoms. There were variations in knowledge and beliefs about IBS according to age, gender, and education. We found minor differences in beliefs and knowledge between individuals who had or have symptoms but never were in treatment and those without respective illness experience. Respondents with illness/treatment experiences rated their knowledge significantly better than those without any experiences. CONCLUSIONS: Results indicate low levels of public knowledge about IBS regarding illness recognition in Germany. A majority disagreed that they have good knowledge about IBS symptoms. Against this background, it seems reasonable to develop and test interventions to improve IBS literacy by increasing knowledge about symptoms, causes and treatment options.

Multi-staged development and pilot testing of a self-assessment tool for organizational health literacy.

BACKGROUND: Until now a comprehensive, consensus-based tool that can be used by a variety of health care organizations for assessing their organizational health literacy (OHL) is not available. Therefore, we aimed to develop and test a literature- and consensus-based self-assessment tool. METHODS: The study is based on a scoping review that was previously published by the authors. For the development of the self-assessment tool, the criteria identified in the literature were synthesized with criteria gained through group discussions with representatives of different types of health care organizations (N = 27) all based in Hamburg (Germany). Consensus on the criteria was reached by conducting a Delphi process (N = 22). A review by the project's patient advisory council was included in the process. The self-assessment tool was converted into an online tool and refined by a pretest. Finally, the online survey was piloted (N = 53) and the reliability and item loadings for each scale were analyzed. RESULTS: In total, 77 criteria (items) characterizing a health literate health care organization were developed and grouped into five main categories (scales): (1) "easy access and navigation", (2) "integration, prioritization, and dissemination of OHL", (3) "qualification, quality management, evaluation, and needs assessment", (4) "communication with target groups", and (5) "involvement and support of target groups". The results of the online survey showed that the tool is suitable for assessing an organization's status quo on OHL. The psychometric analysis showed good to excellent internal consistency. Item analyses of the developed self-assessment tool was satisfactory. CONCLUSIONS: We were able to define a set of 77 items to characterize OHL, which were integrated into a new, comprehensive, and consensus-based self-assessment tool to identify areas for improvement. We found evidence that the self-assessment tool, based on the identified criteria, consists of the assumed five scales. Further research should analyze the validity of the self-assessment tool on a higher detail level.

Metacognitive training in the acute psychiatric care setting: feasibility, acceptability, and safety.

Patients on acute psychiatric wards desire more psychosocial treatment than they receive, according to recent studies, but evidence-based interventions tailored to this setting are currently lacking. Metacognitive Training for psychosis (MCT) is a flexible, easy-to-administer group therapy that has been adapted to meet this demand (MCT-Acute). Thirty-seven patients with severe mental illness took part in MCT-Acute twice a week during their stay on a locked acute ward and were interviewed before, during, and after the intervention period regarding subjective utility, subjective adverse events, and symptom severity; attendance rates and reasons for absence were recorded. In addition, staff rated adverse events, symptom severity, and functioning (German Clinical Trial Register ID: DRKS00020551). Overall, most patients evaluated MCT-Acute positively and reported symptom stabilization. Staff also reported improvement in functioning. No clinician-rated adverse events related to participation in MCT-Acute were reported. Conducting MCT-Acute is feasible and safe and may contribute to meeting patients', practitioners', and researchers' demands for more evidence-based psychotherapeutic interventions for the acute psychiatric care setting. Clinical Trial Registration: ID: DRKS00020551, https://drks.de/search/de/trial/DRKS00020551.

Perceived treatment urgency of common mental disorders in the German population.

Perceived treatment urgency of mental disorders are important as they determine utilization of health care. The aim was to analyze variations in perceived treatment urgency in cases of psychosis (adolescents), alcoholism (adults), and depression (older adults) with two levels of severity each by characteristics of the case and the respondents. A telephone survey (N = 1200) with vignettes describing cases of psychosis, alcoholism, and depression was conducted in Hamburg, Germany. Vignettes varied by symptom severity and sex. Perceived treatment urgency was assessed by three items. A sum scale was calculated. Linear regression models were computed to analyze differences in perceived urgency by characteristics of the case (severity, sex) and the respondents (sex, age, education, migration background, illness recognition, personal affliction). Perceived treatment urgency was significantly higher in severe cases and varied by education. Additionally, regarding psychosis, estimated urgency varied significantly by correct illness recognition. With regard to depression, perceived urgency differed significantly by age and correct illness recognition. Interaction effects between case severity and sociodemographic characteristics of the respondents, personal affliction, and correct recognition of the disorder were found. The identified differences should be considered in the development of interventions on mental health literacy with regard to adequate urgency assessment.

Associations of Migration, Socioeconomic Position and Social Relations With Depressive Symptoms - Analyses of the German National Cohort Baseline Data.

Objectives: We analyze whether the prevalence of depressive symptoms differs among various migrant and non-migrant populations in Germany and to what extent these differences can be attributed to socioeconomic position (SEP) and social relations. Methods: The German National Cohort health study (NAKO) is a prospective multicenter cohort study (N = 204,878). Migration background (assessed based on citizenship and country of birth of both participant and parents) was used as independent variable, age, sex, Social Network Index, the availability of emotional support, SEP (relative income position and educational status) and employment status were introduced as covariates and depressive symptoms (PHQ-9) as dependent variable in logistic regression models. Results: Increased odds ratios of depressive symptoms were found in all migrant subgroups compared to non-migrants and varied regarding regions of origins. Elevated odds ratios decreased when SEP and social relations were included. Attenuations varied across migrant subgroups. Conclusion: The gap in depressive symptoms can partly be attributed to SEP and social relations, with variations between migrant subgroups. The integration paradox is likely to contribute to the explanation of the results. Future studies need to consider heterogeneity among migrant subgroups whenever possible.

Worsened self-rated health in the course of the COVID-19 pandemic among older adults in Europe.

BACKGROUND: Governments across Europe deployed non-pharmaceutical interventions to mitigate the spread of coronavirus disease 2019 (COVID-19), which not only showed clear benefits but also had negative consequences on peoples' health. Health inequalities increased, disproportionally affecting people with higher age or lower education. This study analyzed associations between social factors and worsened self-rated health of elderly people in the course of the COVID-19 pandemic, taking different stringencies of government mandates as well as infection rates into account. METHODS: Data stem from the European SHARE survey. The main outcome was a binary indicator of worsened self-rated health. Analyses included data from two waves (2020 and 2021) during the pandemic (N = 48 356 participants, N = 96 712 observations). Predictors were age, sex, education and living together with a partner, and two macro indicators that reflected the stringency of government response mandates and COVID-19 infection rates. Data were analyzed using logistic mixed-effects regression models. RESULTS: Older age [odds ratio (OR) 1.73, confidence interval (CI) 1.65-1.81] and female sex (OR 1.26, CI 1.20-1.32) were positively associated and higher education (OR 0.74, CI 0.70-0.79) was negatively associated with worsened self-rated health. Not living together with a partner showed higher odds of worsened self-rated health (OR 1.30, CI 1.24-1.36). Inequalities increased from 2020 to 2021. Associations between worsened self-rated health and government response mandates or infection rates were inconsistent. CONCLUSION: Self-rated health worsened in the course of the pandemic and health disparities increased. Possible future pandemics require targeted interventions to minimize adverse health outcomes, in particular among old, potentially isolated, and deprived people.

Family health partners in regional network structures (NEST): A non-randomized controlled trial among parents of chronically ill and disabled children.

BACKGROUND: The overarching project goal is to evaluate the effectiveness of a cross-sectoral and cross-service provider offering professional support for families with chronically ill and disabled children: so-called Family Health Partners (in German: 'Familien-Gesundheits-Partner' or FGP). This needs-oriented service, which is anchored in regional networks, aims to provide 'holistic' support for families with children in need of care. METHODS: We are carrying out a non-randomized controlled trial with four points of measurement (t0-t3 in 18 months), beginning in January 2022. Both intervention and control group include 102 families. Primary outcome measure is the quality of life, secondary outcomes are resilience factors and associated measures as well as the access to care. Multilevel regression models will be used to analyze the longitudinal data. DISCUSSION: The strength of this study is that it looks at the health and resilience of all family members involved by examining how a FGP can influence the entire family system with regard to increasing quality of life, resilience and self-efficacy. The network structures of FGP also open up better to previously unknown regional supply offers. There are, however, a number of limitations (e.g. type of outcomes, sample size). TRIAL REGISTRATION: This study was first registered on the German Clinical Trials Register before enrolment of participants started (ID: DRKS00027465, 4 January 2022). In order to promote its dissemination, it was also retrospectively registered on ClinicalTrials.gov (ID: NCT05418205, 14 June 2022).

Item distribution, scalability and internal consistency of the QUALIDEM quality of life assessment for patients with dementia in acute hospital settings.

BACKGROUND: Quality of life (QoL) of people with dementia (PwD) is an important indicator of quality of care. Studying the impact of acute hospital settings on PwD's QoL requires assessment instruments that consider environmental factors. Until now, dementia-specific QoL instruments have not yet demonstrated their feasibility in acute hospitals because their use takes up too much time or their validity depends on observation periods that usually exceed the average length of hospital stays. Therefore, validated instruments to study QoL-outcomes of patients with dementia in hospitals are needed. METHODS: Data stem from a study that analyzed the impact of a special care concept on the QoL of patients with dementia in acute hospitals. Total sample size consisted of N = 526 patients. Study nurses were trained in using an assessment questionnaire and conducted the data collection from June 2016 to July 2017. QoL was assessed with the QUALIDEM. This instrument consists of nine subscales that can be applied to people with mild to severe dementia (N = 344), while six of the nine subscales are applicable for people with very severe dementia (N = 182). Scalability and internal consistency were tested with Mokken scale analysis. RESULTS: For people with mild to severe dementia, seven out of nine subscales were scalable (0.31 ≤ H ≤ 0.75). Five of these seven subscales were also internally consistent (ρ ≥ 0.69), while two had insufficient reliability scores (ρ = 0.53 and 0.52). The remaining two (positive self-image, feeling at home) subscales had rather low scalability (H = 0.17/0.16) and reliability scores (ρ = 0.35/0.36). For people with very severe dementia, all six subscales were scalable (0.34 ≤ H ≤ 0.71). Five out of six showed acceptable internal consistency (ρ = 0.65-0.91). Only the item social relations had insufficient reliability (ρ = 0.55). CONCLUSIONS: In comparison with a previous evaluation of the QUALIDEM in a long-term care setting, the application in a hospital setting leads to very similar, acceptable results for people with mild to severe dementia. For people with very severe dementia, the QUALIDEM seems to fit even better in a hospital context. Results suggest either a revision of unsatisfactory items or a general reduction to six items for the QUALIDEM, for all PwD. In general, the QUALIDEM can be recommended as instrument to assess the QoL for PwD in the context of hospital research. Additionally, an investigation of the inter-rater reliability is necessary because the qualification of the nurses and the length of stay of the patients in the hospital differ from the previous investigations of the inter-rater reliability of QUALIDEM in the nursing home.

Repositioning synthetic glucocorticoids in psychiatric disease associated with neural autoantibodies: a narrative review.

Synthetic glucocorticoids (sGCs) are a well-investigated and standard drug therapy for disorders associated with CNS inflammation. Less is known about treating psychiatric disorders associated with neural autoantibodies. Our aim is to elucidate the repositioning of sGCs in psychiatric diseases that co-exist with neural autoantibodies. We used PubMed to identify articles for this narrative review. To our knowledge, no randomized, placebo-controlled trials have yet been conducted on applying sGC to treat neural autoantibody-associated psychiatric disorders. We describe initial results of cohort studies and single cases or case series often associated with autoantibodies against membrane-surface antigens demonstrating a largely beneficial response to sGCs either as monotherapy or polytherapy together with other immunosuppressive agents. However, sGCs may be less efficient in patients with psychiatric diseases associated with autoantibodies directed against intracellular antigens. These results reveal potential benefits of the novel usage of sGCs for the indication of neural autoantibody-associated psychiatric disease. Further large-scale randomized, placebo-controlled trials are needed to discover whether sGCs are safe, well tolerated, and beneficial in subgroups of neural autoantibody-associated psychiatric diseases.

Service users' perceptions of relevant and helpful components of an integrated care concept (ACCESS) for psychosis.

Introduction: Psychotic disorders have a significant impact on patients' lives and their families, and long-term treatment with individually tailored multimodal combinations of therapies is often required. Integrated care (IC) concepts such as the "Hamburg Model (ACCESS)" with a focus on psychotic disorders, includes different (therapeutic) components with pharmaco- and psychotherapy, family involvement, home treatment and the option of using a 24/7 crisis hotline. All components are offered by a therapeutically-oriented assertive community treatment (TACT) team in a need-adapted manner. So far, however, little is known about which specific components are regarded as especially relevant and helpful by the users of IC. Methods: Patients currently participating in IC completed a questionnaire as part of the continuous quality assurance study (ACCESS II) in which they were asked to rate the different components of treatment according to their relevance and helpfulness, considering the individual's unique experiences with IC and needs in mental health care. Furthermore, they were asked to make suggestions regarding additional helpful components of treatment. Results: Fifty patients participated in this survey (23% of the patients currently participating in the IC concept). For participants, the most helpful and important factors were having the same therapist in the long-term and the 24/7 crisis telephone. Additional components suggested by patients included more addiction-specific therapies and increased focus on vocational rehabilitation and integration. Conclusion: From the perspective of the users of IC, long-term care from a trusted therapist with whom there is a therapeutic relationship and the possibility to reach someone they already know from the TACT team 24/7 serves as the best basis for effective care, fostering trust, understanding, and open communication. In contrast, home treatment remains a relevant aspect of evidence-based care for people with severe mental illness, but perhaps surprisingly, is not viewed as the most important issue.

Burdening and Protective Organisational Factors among International Volunteers in Greek Refugee Camps-A Qualitative Study.

A majority of the workforce in the humanitarian aid consists of volunteers who partly suffer from health problems related to their voluntary service. To date, only a fraction of the current research focuses on this population. The aim of this qualitative explorative study was to identify burdening and protective organisational factors for health and well-being among humanitarian aid volunteers in a Greek refugee camp. To this end, interviews with 22 volunteers were held on site and afterwards analysed by using qualitative content analysis. We focused on international volunteers working in Greece that worked in the provision of food, material goods, emotional support and recreational opportunities. We identified burdening factors, as well as protective factors, in the areas of work procedures, team interactions, organisational support and living arrangements. Gender-specific disadvantages contribute to burdening factors, while joyful experiences are only addressed as protective factors. Additionally, gender-specific aspects in the experience of team interactions and support systems were identified. According to our findings, several possibilities for organisations to protect health and well-being of their volunteers exist. Organisations could adapt organisational structures to the needs of their volunteers and consider gender-specific factors.

Decline in Mental Health in the Beginning of the COVID-19 Outbreak Among European Older Adults-Associations With Social Factors, Infection Rates, and Government Response.

Objective: Governments across the world have deployed a wide range of non-pharmaceutical interventions (NPI) to mitigate the spread of COVID-19. Certain NPIs, like limiting social contacts or lockdowns, had negative consequences for mental health in the population. Especially elder people are prone to mental illnesses during the current pandemic. This article investigates how social factors, infections rates, and stringency of NPIs are associated with a decline in mental health in different European countries. Methods: Data stem from the eighth wave of the SHARE survey. Additional data sources were used to build macro indicators for infection rates and NPIs. Two subsamples of persons with mental health problems were selected (people who reported being depressed, n = 9.240 or nervous/anxious, n = 10.551). Decline in mental health was assessed by asking whether depressive symptoms or nervousness/anxiety have become worse since the beginning of the COVID-19 outbreak. For each outcome, logistic regression models with survey-design were used to estimate odds ratios (OR), using social factors (age, gender, education, living alone, and personal contacts) and macro indicators (stringency of NPIs and infection rates) as predictors. Results: Higher age was associated with a lower likelihood of becoming more depressed (OR 0.87) or nervous/anxious (OR 0.88), while female gender increased the odds of a decline in mental health (OR 1.53 for being more depressed; OR 1.57 for being more nervous/anxious). Higher education was only associated with becoming more nervous/anxious (OR 1.59), while living alone or rare personal contacts were not statistically significant. People from countries with higher infection rates were more likely to become more depressed (OR 3.31) or nervous/anxious (OR 4.12), while stringency of NPIs showed inconsistent associations. Conclusion: A majority of European older adults showed a decline in mental health since the beginning of the COVID-19 outbreak. This is especially true in countries with high prevalence rates of COVID-19. Among older European adults, age seems to be a protective factor for a decline in mental health while female gender apparently is a risk factor. Moreover, although NPIs are an essential preventative mechanism to reduce the pandemic spread, they might influence the vulnerability for elderly people suffering from mental health problems.

Data quality of reported child immunization coverage in 194 countries between 2000 and 2019.

Analyzing immunization coverage data is crucial to guide decision-making in national immunization programs and monitor global initiatives such as the Immunization Agenda 2030. We aimed to assess the quality of reported child immunization coverage data for 194 countries over 20 years. We analyzed child immunization coverage as reported to the World Health Organization (WHO) and the United Nations Children's Fund (UNICEF) between 2000-2019 by all WHO Member States for Bacillus Calmette-Guérin (BCG) vaccine birth dose, first and third doses of diphtheria-tetanus-pertussis-containing vaccine (DTP1, DTP3), and first dose of measles-containing vaccine (MCV1). We assessed completeness, consistency, integrity, and congruence and assigned data quality flags in case anomalies were detected. Generalized linear mixed-effects models were used to estimate the probability of flags worldwide and for different country groups over time. The probability of data quality flags was 18.2% globally (95% confidence interval [CI] 14.8-22.3). The lowest probability was seen in South-East Asia (6.3%, 3.3-11.8, p = 0.002), the highest in the Americas (29.7%, 22.7-37.9, p < 0.001). The probability of data quality flags declined by 5.1% per year globally (3.2-7.0, p < 0.001). The steepest decline was seen in Africa (-9.6%, -13.0 to -5.8, p < 0.001), followed by Europe (-5.4%, -9.2 to -1.6, p = 0.0055), and the Americas (-4.9%, -9.2 to -0.6, p = 0.026). Most country groups showed a statistically significant decline, and none had a statistically significant increase. Over the past two decades, the quality of global immunization coverage data appears to have improved. However, progress has not been universal. The results highlight the need for joint efforts so that all countries collect, report, and use high-quality data for action in immunization.

Health Patterns among Migrant and Non-Migrant Middle- and Older-Aged Individuals in Europe-Analyses Based on Share 2004-2017.

INTRODUCTION: European populations are becoming older and more diverse. Little is known about the health differences between the migrant and non-migrant elderly in Europe. The aim of this paper was to analyse changes in the health patterns of middle- and older-aged migrant and non-migrant populations in Europe from 2004 to 2017, with a specific focus on differences in age and gender. We analysed changes in the health patterns of older migrants and non-migrants in European countries from 2004 to 2017. METHOD: Based on data from the Survey of Health, Ageing and Retirement in Europe (6 waves; 2004-2017; n = 233,117) we analysed three health indicators (physical functioning, depressive symptoms, and self-rated health). Logistic regression models for complex samples were calculated. Interaction terms (wave * migrant * gender * age) were used to analyse gender and age differences and the change over time. RESULTS: Middle- and older-aged migrants in Europe showed significantly higher rates of depressive symptoms, lower self-rated health, and a higher proportion of limitations on general activities compared to non-migrants. However, different time trends were observed. An increasing health gap was identified in the physical functioning of older males. Narrowing health gaps over time were observed in women. DISCUSSION: An increasing health gap in physical functioning in men is evidence of cumulative disadvantage. In women, evidence points towards the hypothesis of aging-as-leveler. These different results highlight the need for specific interventions focused on healthy ageing in elderly migrant men.

Which criteria characterize a health literate health care organization? - a scoping review on organizational health literacy.

BACKGROUND: Organizational health literacy (OHL) aims to respond to the health literacy needs of patients by improving health information and services and making them easier to understand, access, and apply. This scoping review primarily maps criteria characterizing health literate health care organizations. Secondary outcomes are the concepts and terminologies underlying these criteria as well as instruments to measure them. METHODS: The review was carried out following the JBI Manual on scoping reviews. The databases CINAHL, Cochrane Library, JSTOR, PsycINFO, PubMed, Web of Science Core Collection, and Wiley Online Library were searched in July 2020. Three researchers screened the records and extracted the data. The results were synthesized systematically and descriptively. RESULTS: The literature search resulted in 639 records. After removing duplicates, screening by title and abstract, and assessing full-texts for eligibility, the scoping review included 60 publications. Criteria for OHL were extracted and assigned to six main categories (with 25 subcategories). The most prevalent topic of organizational health literacy refers to communication with service users. Exemplary criteria regarding this main category are the education and information of service users, work on easy-to-understand written materials as well as oral exchange, and verifying understanding. The six main categories were defined as 1) communication with service users; 2) easy access & navigation; 3) integration & prioritization of OHL; 4) assessments & organizational development; 5) engagement & support of service users, and 6) information & qualification of staff. The criteria were based on various concepts and terminologies. Terminologies were categorized into four conceptual clusters: 1) health literacy in various social contexts; 2) health literate health care organization; 3) organizational behavior, and 4) communication in health care. 17 different assessment tools and instruments were identified. Only some of the toolkits and instruments were validated or tested in feasibility studies. CONCLUSIONS: Organizational health literacy includes a significant number of distinct organizational criteria. The terminologies used in the OHL literature are heterogeneous based on a variety of concepts. A comprehensive, consensus-based conceptual framework on OHL is missing.

Protective Behavior in Course of the COVID-19 Outbreak-Survey Results From Germany.

Objective: The COVID-19 outbreak means far-reaching changes in the organization of daily lives. Disease-related literacy and factors such as age, gender, or education play a major role in shaping individual practices of protective behavior. This paper investigates different types and frequency of practicing protective behaviors, as well as socio-demographic factors that are associated with such behavioral change. Methods: Data stem from a cross-sectional survey in Germany. Three thousand seven hundred and sixty-five people were contacted, 3,186 participated in the survey. Information on behavior to lower the risk of becoming infected with COVID-19 was assessed by nine items (answer options yes/no). For each item, logistic regression models were used to estimate odds ratios (OR), using education, sex, and age as main predictors and adjusting for partnership status and household composition. Results: People with lower educational level were less likely to avoid gatherings (OR = 0.63; 95%CI = 0.48-0.83), adapt their work situation (OR = 0.66; 95%CI = 0.52-0.82), reduce personal contacts and meetings (OR = 0.71; 95%CI = 0.55-0.93), or increase hand hygiene (OR = 0.53; 95%CI = 0.38-0.73). Being female was associated with higher odds of protective behavior for most outcomes. Exceptions were wearing face masks and adapting the own work situation. Associations between respondents' age and individual behavior change were inconsistent and mostly weak. Conclusion: Disease specific knowledge is essential in order to enable people to judge information on COVID-19. Health education programs aiming at improving COVID-19 knowledge are helpful to build up appropriate practices and reduce the spread of the disease. Strategies are needed to guarantee easy access and better dissemination of high-quality news and fact-checks. Socioeconomic characteristics should be taken into account in the development of infection control measures.