Self-Assessment of Having COVID-19 With the Corona Check mHealth App.

At the beginning of the COVID-19 pandemic, with a lack of knowledge about the novel virus and a lack of widely available tests, getting first feedback about being infected was not easy. To support all citizens in this respect, we developed the mobile health app Corona Check. Based on a self-reported questionnaire about symptoms and contact history, users get first feedback about a possible corona infection and advice on what to do. We developed Corona Check based on our existing software framework and released the app on Google Play and the Apple App Store on April 4, 2020. Until October 30, 2021, we collected 51,323 assessments from 35,118 users with explicit agreement of the users that their anonymized data may be used for research purposes. For 70.6% of the assessments, the users additionally shared their coarse geolocation with us. To the best of our knowledge, we are the first to report about such a large-scale study in this context of COVID-19 mHealth systems. Although users from some countries reported more symptoms on average than users from other countries, we did not find any statistically significant differences between symptom distributions (regarding country, age, and sex). Overall, the Corona Check app provided easily accessible information on corona symptoms and showed the potential to help overburdened corona telephone hotlines, especially during the beginning of the pandemic. Corona Check thus was able to support fighting the spread of the novel coronavirus. mHealth apps further prove to be valuable tools for longitudinal health data collection.

Functional versus morphological assessment of vascular age in patients with coronary heart disease.

Communicating cardiovascular risk based on individual vascular age (VA) is a well acknowledged concept in patient education and disease prevention. VA may be derived functionally, e.g. by measurement of pulse wave velocity (PWV), or morphologically, e.g. by assessment of carotid intima-media thickness (cIMT). The purpose of this study was to investigate whether both approaches produce similar results. Within the context of the German subset of the EUROASPIRE IV survey, 501 patients with coronary heart disease underwent (a) oscillometric PWV measurement at the aortic, carotid-femoral and brachial-ankle site (PWVao, PWVcf, PWVba) and derivation of the aortic augmentation index (AIao); (b) bilateral cIMT assessment by high-resolution ultrasound at three sites (common, bulb, internal). Respective VA was calculated using published equations. According to VA derived from PWV, most patients exhibited values below chronological age indicating a counterintuitive healthier-than-anticipated vascular status: for VAPWVao in 68% of patients; for VAAIao in 52% of patients. By contrast, VA derived from cIMT delivered opposite results: e.g. according to VAtotal-cIMT accelerated vascular aging in 75% of patients. To strengthen the concept of VA, further efforts are needed to better standardise the current approaches to estimate VA and, thereby, to improve comparability and clinical utility.

A Self-administered Version of the Functioning Assessment Short Test for Use in Population-based Studies: A Pilot Study.

BACKGROUND: The Functioning Assessment Short Test (FAST) is an interviewer-administered scale assessing functional impairment originally developed for psychiatric patients. OBJECTIVES: To adapt the FAST for the general population, we developed a self-administered version of the scale and assessed its properties in a pilot study. METHODS: The original FAST scale was translated into German via forward and backward translation. Afterwards, we adjusted the scale for self-administered application and inquired participants from two ongoing studies in Germany, 'STAAB' (Würzburg) and 'BiDirect' (Münster), both recruiting subjects from the general population across a wide age range (STAAB: 30-79 years, BiDirect: 35-65 years). To assess reliability, agreement of self-assessment with proxy-assessment by partners was measured via intraclass correlation coefficient (ICC) over the FAST score. Construct validity was estimated by conducting correlations with validated scales of depression (PHQ-9), anxiety (GAD-7), and health-related quality of life (SF-12) and regression analyses using these scales besides potentially disabling comorbidities (e.g. Chronic Back Pain (CBP)). RESULTS: Participants (n=54) had a median age of 57.0 years (quartiles: 49.8, 65.3), 46.3% were female. Reliability was moderate: ICC 0.50 (95% CI 0.46-0.54). The FAST score significantly correlated with PHQ-9, GAD-7, and the mental sub-scale of SF-12. In univariable linear regression, all three scales and chronic back pain explained variance of the FAST score. In multivariable analysis, only CBP and the SF-12 remained significant predictors. CONCLUSION: The German self-administered version of the FAST yielded moderate psychometric properties in this pilot study, indicating its applicability to assess functional impairment in the general population.

The Montreal Cognitive Assessment (MoCA) in a population-based sample of Turkish migrants living in Germany.

OBJECTIVES: Data on cognitive testing in migrants in Germany are scarce. We aimed to evaluate the Montreal Cognitive Assessment (MoCA) in Turkish migrants in Berlin and its association with demographics and health-related variables. METHOD: For this cross-sectional study, a random sample of persons with Turkish names was drawn from the registration-office. Cognitive function was assessed using the MoCA; 0 = worst, 30 = best total score. Multivariable linear regression models were calculated to determine associated factors with the total MoCA-score. RESULTS: In our analyses we included 282 participants (50% female), mean age 42.3 ± 11.9 years (mean ± standard deviation (SD)). The mean ± SD MoCA score was 23.3 ± 4.3. In the multivariable analysis, higher education (ß = 2.68; p < 0.001), and chosing the German version of the MoCA (ß = -1.13; p = 0.026), were associated with higher MoCA-scores, whereas higher age (ß = -0.08; p = 0.002) was associated with lower MoCA scores. CONCLUSION: In our study, a higher educational level, lower age, and German as the preferred test language (as compared to Turkish) were positively associated with the cognitive performance of Berliners with Turkish roots. To examine neurocognitive health of migrants, longitudinal population-based and clinical cohort studies that specifically compare migrants and their descendants with the original population of their home countries are required.

Public funding for medical research in relation to the burden of disease caused by cardiovascular diseases and neoplasms in Germany.

BACKGROUND: Public funding for medical research in Germany is primarily provided by the German Research Foundation (DFG) and the Federal Ministry of Education and Research (BMBF). The aim of this study was to analyze the amount of national public funding for medical research on predominant causes of death in Germany, cardiovascular diseases and neoplasms, in relation to the burden of these diseases in Germany. METHODS: Three evaluators categorized medical research projects funded by the DFG or BMBF between 2010 and 2012 into the categories "Diseases of the circulatory system" (with subgroups "Ischemic heart diseases", "Heart failure" and "Cerebrovascular diseases") and "Neoplasms". The total amount of public funding by the national agencies was analyzed in relation to the burden of disease for the respective disease condition. RESULTS: Information on national public funding for medical research of 2091 million euros was available; of those, 246.8 million euros (11.8%) were categorized being spent for research on "Neoplasms", 118.4 million euros (5.7%) for research on "Diseases of the circulatory system". This results in 362.08 euros per case of death, 16.58 euros per year of life lost (YLL) and 16.04 euros per disability-adjusted life year (DALY) for "Neoplasms" and in 113.44 euros per case of death, 8.05 euros per YLL and 7.17 euros per DALY for "Diseases of the circulatory system". CONCLUSIONS: In Germany, research on cardiovascular diseases receives a lower share of national public funding for medical research compared to oncological research. These results are comparable to other European countries.

Pulmonary wedge resection plus parietal pleurectomy (WRPP) versus parietal pleurectomy (PP) for the treatment of recurrent primary pneumothorax (WOPP trial): study protocol for a randomized controlled trial.

BACKGROUND: For the surgical treatment of recurrent primary spontaneous pneumothoraces (rPSP) different operative therapies are applied to achieve permanent freedom from recurrence. METHODS/DESIGN: This multicenter clinical trial evaluates the long-term results of two commonly applied surgical techniques for the treatment of rPSP. Based on the inclusion and exclusion criteria, and after obtaining the patients' informed consent, participants are randomized into the two surgical treatment arms: pulmonary wedge resection plus parietal pleurectomy (WRPP) or parietal pleurectomy alone (PP). Consecutively, all study participants will be followed up for two years to evaluate the surgical long-term effect. The primary efficacy endpoint is the recurrence rate of pneumothorax within 24 months after surgery. The calculated sample size is 360 patients (n = 180 per treatment arm) to prove superiority of one of the two treatments. So far, 22 surgical sites have submitted their declaration of commitment, giving the estimated number of participating patients. DISCUSSION: A prospective randomized clinical trial has been started to compare two established surgical therapies to evaluate the long-term results regarding recurrence rates. Furthermore, cost of treatment, and influence on the perioperative morbidity and mortality as well as on quality of life are analyzed. If the study reveals equivalence for both surgical techniques, unnecessary pulmonary resections could be avoided. TRIAL REGISTRATION: ClinicalTrials gov: NCT01855464 , 06.05 2013.

Effects of structured heart failure disease management on mortality and morbidity depend on patients' mood: results from the Interdisciplinary Network for Heart Failure Study.

AIMS: Depression is common in heart failure (HF) and associated with adverse outcomes. Randomized comparisons of the effectiveness of HF care strategies by patients' mood are scarce. We therefore investigated in a randomized trial a structured collaborative disease management programme (HeartNetCare-HF™; HNC) recording mortality, morbidity, and symptoms in patients enrolled after hospitalization for decompensated systolic HF according to their responses to the 9-item Patient Health Questionnaire (PHQ-9) during an observation period of 180 days. METHODS AND RESULTS: Subjects scoring <12/≥12 were categorized as non-depressed/depressed, and those ignoring the questionnaire as PHQ-deniers. Amongst 715 participants (69 ± 12 years, 29% female), 141 (20%) were depressed, 466 (65%) non-depressed, and 108 (15%) PHQ-deniers. The composite endpoint of mortality and re-hospitalization was neutral overall and in all subgroups. However, HNC reduced mortality risk in both depressed and non-depressed patients [adjusted hazard ratios (HRs) 0.12, 95% confidence interval (CI) 0.03-0.56, P = 0.006, and 0.49, 95% CI 0.25-0.93, P = 0.03, respectively], but not in PHQ-deniers (HR 1.74, 95% CI 0.77-3.96, P = 0.19; P = 0.006 for homogeneity of HRs). Average frequencies of patient contacts in the HNC arm were 12.8 ± 7.9 in non-depressed patients, 12.4 ± 7.1 in depressed patients, and 5.5 ± 7.2 in PHQ-deniers (P < 0.001). CONCLUSIONS: Early after decompensation, HNC reduced mortality risk in non-depressed and even more in depressed subjects, but not in PHQ-deniers. This suggests that differential acceptability and chance of success of care strategies such as HNC might be predicted by appropriate assessment of patients' baseline characteristics including psychological disposition. These post-hoc results should be reassessed by prospective evaluation of HNC in larger HF populations.

Association between socioeconomic status and functional impairment 3 months after ischemic stroke: the Berlin Stroke Register.

BACKGROUND AND PURPOSE: We aimed to analyze the association between patient socioeconomic status and functional impairment 3 months after ischemic stroke and to identify factors that influence this association. METHODS: Data were obtained from the Berlin Stroke Register, a network of 14 stroke units in Berlin. Ischemic stroke patients consecutively admitted to 1 of the hospitals in the Berlin Stroke Register between June 2010 and September 2011, were followed-up 3 months after the index event by postal or telephone interview. We used multivariable logistic regression to examine the association between highest education as marker of socioeconomic status and functional impairment after stroke defined by Barthel Index categories. We adjusted for age, sex, prestroke dependency, stroke severity, functional deficit after stroke onset, and comorbidities as possible confounding factors. RESULTS: A total of 1688 ischemic stroke patients who were alive at 3 months and completed the questionnaire were included in the analysis; 40% of the patients were female and 50% of the patients were 70 years or older. Age, prestroke dependency, stroke severity, and the absence of comorbidities were significantly associated with good functional outcome at 3 months. In multivariable analysis, a higher probability of good outcome was observed in patients with college or university degree (odds ratio, 2.18; 95% confidence interval, 1.39-3.42) compared with patients with no completed education. CONCLUSIONS: Patients with lower education have considerably lower rates of good functional outcome after stroke that cannot be fully explained by variations in the patients' clinical and demographic characteristics.

Predictors of dependency on nursing care after stroke: results from the Dortmund and Münster stroke registry.

BACKGROUND: The long-term effects of stroke have been inadequately studied. We identified social and clinical factors that were associated with application for insurance payments for long-term care within 3.6 years after stroke. METHODS: In a quality-assurance project called "Stroke Northwest Germany," information was obtained from 2286 stroke patients on their socio-demographic background, type of stroke, comorbidities, and degree of physical impairment during their hospital stay, as measured on the Rankin Scale, the Barthel Index, and the Neurological Symptom Scale. We used logistic regression models to identify possible associations between these factors and application for insurance payments for long-term care within 3.6 years after stroke. We developed an appropriate prognostic model by means of backward selection. RESULTS: 734 (32.1%) of the patients participated in follow-up and reported whether they had applied for insurance payments for long-term care. 22.5% had submitted an application. The rate of application was positively correlated with age, female sex, the number of comorbidities and complications during hospitalization, and the degree of physical impairment. CONCLUSION: Stroke has major long-term effects. The probability that a stroke patient will apply for insurance payments for long-term care is a function of the patient's age, sex, previous stroke history, and physical impairment as measured on the Rankin Scale and the Barthel Index.

Stroke and myocardial infarction: a comparative systematic evaluation of gender-specific analysis, funding and authorship patterns in cardiovascular research.

BACKGROUND: Major gender differences exist in cardiovascular diseases and lead to different outcomes in women and men. However, attention and incorporation of sex-/gender-specific research might vary among disciplines. We therefore conducted a systematic review comparing publication characteristics and trends between stroke and myocardial infarction (MI) with respect to sex- and gender-related aspects. METHODS: A systematic literature search was performed in PubMed to identify gender-/sex-related articles published for stroke and MI between 1977 and 2008. A specifically designed text mining program was used, and all literature was rated by two independent investigators. Publications were classified according to type of research performed, publication year, funding, geographical location, and gender of first and last authors. RESULTS: 962 articles were retrieved and limited to 405 (42%) gender-relevant publications; 131 on stroke and 274 on MI. Type of performed research differed, especially in disease management, which received little attention (17%) in stroke, while representing the major focus in MI (40%). In both areas, clinical presentation received little attention (3 and 5%). Although publications progressively increased in both fields, an 8- to 10-year time gap emerged for stroke compared to MI. Last authors in both areas were predominantly men, but female last authorship is increasing more significantly over time in the field of stroke. Research on sex and gender differences in MI and stroke is largely underfunded, particularly by the EU. CONCLUSIONS: The data demonstrate how sex-/gender-specific research differs between specialties, most likely due to the diverse interest, funding opportunities and authorship distributions identified.

A comparison of characteristics and resource use between in-hospital and admitted patients with stroke.

BACKGROUND: Although in-hospital stroke is not a common occurrence, it is important to identify what components of stroke care these patients receive. The aims of this study were to estimate the clinical characteristics, process of stroke care, and mortality in patients admitted to hospital with stroke compared with patients with in-hospital strokes. METHODS: Data from a community-based stroke register (1995-2004) in an inner city multiethnic population of 271,817 in South London, United Kingdom, were analyzed. RESULTS: From a total of 2402 patients, 291 (12.1%) had in-hospital strokes. Patients with in-hospital strokes were more likely to be incontinent, be dysphagic, have a motor deficit, and have a low level of consciousness (P < .001) compared with admitted patients with stroke. Brain imaging was carried out more frequently in admitted patients with stroke (P < .001). Access to stroke unit care was higher in admitted patients with stroke (P < .001). In-hospital patients with stroke had a longer mean length of stay (55.9 days) compared with admitted patients with stroke (37.9 days, P < .001). There were no significant differences between the groups for receipt of physiotherapy or occupational therapy after discharge (P=.232) or receipt of speech and language therapy (P=.345). After adjustment of case mix variables, in-hospital patients with stroke were less likely to undergo imaging (odds ratio [OR]=0.54, 95% confidence interval [CI]=0.33-0.89, P=.015). In-hospital patients with stroke were less likely to be treated in a stroke unit (OR=0.33, 95% CI=0.22-0.50, P < .001) and prescribed antiplatelet therapy at 3 months (OR=0.51, 95% CI=0.30-0.88, P=.015). By 3 months, in-hospital patients with stroke were more likely to have died (P < .001), although this was not significant after case mix adjustment (OR=1.39, 95% CI=0.90-2.15, P=.135). CONCLUSION: This study demonstrated that in-hospital patients with stroke had worse stroke severity, and poorer access to a number of components of stroke care compared with admitted patients with stroke. All hospitals should include, in their stroke policies and guidelines, evidence-based pathways that prioritize the needs of patients who have a stroke while in hospital.

Discrepancy between theoretical knowledge and real action in acute stroke: self-assessment as an important predictor of time to admission.

BACKGROUND: Poor knowledge of stroke symptoms within the general population might be responsible for significant delay between symptom onset and hospital admission in most stroke patients. METHODS: We prospectively evaluated whether theoretical knowledge about stroke influenced time to admission among 102 consecutive acute stroke patients using standardized questionnaires. We assessed in multiple logistic regression models the influence of theoretical knowledge (knowledge about stroke symptoms and knowledge about the appropriate actions to be taken in the case of a stroke) on the real actions taken in the acute situation. Predictors of a delayed hospital admission greater than 2 hours after stroke onset were determined. Models were adjusted for age, gender, level of education, stroke severity, previous history of stroke or transient ischemic attack (TIA), and being alone at symptom onset. RESULTS: Patients arrived significantly later, if the patients themselves were the managers of the emergency situation [odds ratio (OR): 4.7; 95% confidence interval (CI): 1.5-140.8]. Symptom knowledge and action knowledge were not found to be significantly associated with shorter pre-hospital times, whereas the correct diagnosis of stroke by the manager (OR: 0.2; 95% CI: 0.1-0.4) and calling the emergency medical system (OR: 0.3; 95% CI: 0.1-0.7) independently led to a higher likelihood to arrive at a hospital within 2 hours. CONCLUSION: Our study underscores that good theoretical knowledge about stroke does not imply appropriate management in the emergency situation. Educational efforts need to incorporate more practical aspects in order to translate theoretical knowledge into concrete action.

Lifetime cost of ischemic stroke in Germany: results and national projections from a population-based stroke registry: the Erlangen Stroke Project.

BACKGROUND AND PURPOSE: The number of stroke patients and the healthcare costs of strokes are expected to rise. The objective of this study was to determine the direct costs of first ischemic stroke and to estimate the expected increase in costs in Germany. METHODS: An incidence-based, bottom-up, direct-cost-of-ischemic-stroke study from the third-party payer's perspective was performed, incorporating 10-year survival data and 5-year resource use data from the Erlangen Stroke Registry. Discounted lifetime year 2004 costs per case were obtained and applied to the expected age and sex evolution of the German resident population in the period 2006 to 2025. RESULTS: The overall cost per first-year survivor of first-ever ischemic stroke was estimated to be 18,517 euros (EUR). Rehabilitation accounted for 37% of this cost, whereas in subsequent years outpatient care was the major cost driver. Discounted lifetime cost per case was 43,129 EUR overall and was higher in men (45,549 EUR) than in women (41,304 EUR). National projections for the period 2006 to 2025 showed 1.5 million and 1.9 million new cases of ischemic stroke in men and women, respectively, at a present value of 51.5 and 57.1 billion EUR, respectively. CONCLUSIONS: The number of stroke patients and the healthcare costs of strokes in Germany will rise continuously until the year 2025. Therefore, stroke prevention and reduction of stroke-related disability should be made priorities in health planning policies.