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Beinahe jeder dritte ischämische Schlaganfall ist ursächlich auf Erkrankungen des Herzens zurückzuführen. Daher empfehlen Leitlinien allen Patienten und Patientinnen, bei denen eine kardioembolische Ätiologie des Schlaganfalls vermutet wird und bei denen ein Vorhofflimmern nicht bereits bekannt ist, als Teil der Routinediagnostik eine echokardiographische Untersuchung, um Hinweise auf die Ätiologie des ischämischen Schlaganfalls zu gewinnen und um gegebenenfalls Maßnahmen zur Sekundärprävention einleiten zu können. Jedoch ist der Zugang zu solchen echokardiographischen Untersuchungen oftmals limitiert, besonders für Patienten und Patientinnen auf Stroke Units, denn dort überschreitet die Nachfrage häufig die verfügbaren personellen und instrumentellen Kapazitäten. Zudem stellt der Transport bettlägeriger Patienten und Patientinnen in andere Abteilungen eine Belastung dar.
Daher stellt sich die Frage, ob zukünftig im Rahmen wissenschaftlicher Studien POC-Echokardiographie-Geräte zur Diagnostik bestimmter Herzerkrankungen einschließlich einer systolischen Dysfunktion bei Patienten und Patientinnen mit ischämischem Schlaganfall eingesetzt werden können, mit dem Ziel Patienten und Patientinnen zu identifizieren, die von einer erweiterten echokardiographischen Untersuchung profitieren könnten. Im Rahmen der vorliegenden prospektiven Validierungsstudie untersuchte eine Studentin 78 Patienten und Patientinnen mit akutem ischämischem Schlaganfall mithilfe eines POC-Echokardiographie-Geräts auf der Stroke Unit der Neurologischen Abteilung des Universitätsklinikums Würzburg. Im Anschluss daran erhielten alle 78 Patienten und Patientinnen eine Kontrolluntersuchung durch eine erfahrene Echokardiographie-Raterin mithilfe eines SE-Geräts in einem externen Herzzentrum.
Die diagnostischen Qualitäten des POC-Echokardiographie-Geräts für Forschungszwecke zur fokussierten kardialen Diagnostik nach ischämischem Schlaganfall im Vergleich zu einer SE-Untersuchung konnten mithilfe der Validierungsstudie bestätigt werden. Es zeigte sich insbesondere, dass die POC-Echokardiographie für die Detektion einer LVEF≤55% mit einer Sensitivität von 100% geeignet war.
Um zu evaluieren, ob sich das POC-Echokardiographie-Gerät in Zukunft auch in der klinischen Praxis als Screeninginstrument eignet, mit dem Ziel eine individuelle Behandlung von Schlaganfallpatienten und -patientinnen zu gewährleisten, müssen größere, prospektive Studien durchgeführt werden, in denen die Fallzahl für bestimmte kardiologische Erkrankungen ausreichend hoch ist.
Objectives
Although the vast majority of COVID-19 cases are treated in primary care, patients' experiences during home isolation have been little studied. This study aimed to explore the experiences of patients with acute COVID-19 and to identify challenges after the initial adaptation of the German health system to the pandemic (after first infection wave from February to June 2020).
Methods
A mixed-method convergent design was used to gain a holistic insight into patients experience. The study consisted of a cross-sectional survey, open survey answers and semi-structured telephone interviews. Descriptive analysis was performed on quantitative survey answers. Between group differences were calculated to explore changes after the first infection wave. Qualitative thematic analysis was conducted on open survey answers and interviews. The results were then compared within a triangulation protocol.
Results
A total of 1100 participants from all German states were recruited by 145 general practitioners from August 2020 to April 2021, 42 additionally took part in qualitative interviews. Disease onset varied from February 2020 to April 2021. After the first infection wave, more participants were tested positive during the acute disease (88.8%; 95.2%; P < 0.001). Waiting times for tests (mean 4.5 days, SD 4.1; 2.7days, SD 2.6, P < 0.001) and test results (mean 2.4 days, SD 1.9; 1.8 days, SD 1.3, P < 0.001) decreased. Qualitative results indicated that the availability of repeated testing and antigen tests reduced insecurities, transmission and related guilt. Although personal consultations at general practices increased (6.8%; 15.5%, P < 0.001), telephone consultation remained the main mode of consultation (78.5%) and video remained insignificant (1.9%). The course of disease, the living situation and social surroundings during isolation, access to health care, personal resilience, spirituality and feelings of guilt and worries emerged as themes influencing the illness experience. Challenges were contact management and adequate provision of care during home isolation. A constant contact person within the health system helped against feelings of care deprivation, uncertainty and fear.
Conclusions
Our study highlights that home isolation of individuals with COVID-19 requires a holistic approach that considers all aspects of patient care and effective coordination between different care providers.
Die chronische Niereninsuffizienz (CKD) gilt als wichtiger prognostischer Faktor bei Patienten mit koronarer Herzerkrankung (KHK). Das Bewusstsein (Awareness) für das Vorliegen einer CKD bei Ärzten wie bei Patienten kann bei der Therapie von KHK-Patienten eine entscheidende Rolle spielen. Ziel dieser Arbeit war die Beschreibung der zeitlichen Trends der CKD-Prävalenz sowie der Awareness bei KHK-Patienten und Ärzten im Rahmen der EUROASPIRE (EA) V Studie im Studienzentrum Würzburg. EA V ist eine multizentrische Querschnittsstudie der European Society of Cardiology (ESC) zur Untersuchung der Qualität der Sekundärprävention bei KHK-Patienten, die 6-24 Monate vor dem Studienbesuch stationär behandelt wurden. Nierenfunktion und Nierenerkrankung wurden mit der glomerulären Filtrationsrate (eGFR) und der Urin Albumin-Kreatinin-Ratio abgeschätzt und klassifiziert. Die CKD Awareness der Patienten wurde anhand standardisierter Fragen erhoben. Die CKD Awareness der Ärzte wurde über die ICD-10 Codierung in der Patientenakte sowie die Dokumentation im Entlassungsbrief erfasst. Die Ergebnisse wurden mit der Würzburger EUROASPIRE IV (2012/13) Substudie verglichen. In EA V wurden 219 KHK-Patienten (Median 70 Jahre, 81% Männer) in Würzburg eingeschlossen. Bei Studienbesuch betrug die Prävalenz der CKD 32%, davon waren sich 30% der Patienten der CKD bewusst. Bei 26% der 73 Patienten mit während des Index-Krankenhausaufenthaltes apparenter Nierenfunktionseinschränkung wurde diese auch im Entlassungsbrief dokumentiert und bei 80% korrekt in der Patientenakte codiert. Im Vergleich zu EA IV zeigte sich die eingeschränkte Nierenfunktion während des Krankenhausaufenthaltes (p=0,013) und während des Studienbesuchs (p=0,056) häufiger. Bezüglich der CKD Awareness bei Ärzten und Patienten gab es keine signifikanten Unterschiede bezogen auf die gesamten Kohorten. Im Frühstadium G3a zeigte sich eine statistisch signifikant geringere CKD Awareness der Patienten in EA V verglichen mit EA IV. Die CKD ist eine häufige Komorbidität bei KHK-Patienten. Die CKD Awareness ist bei Patienten, aber auch Ärzten niedrig. Aus dieser Konstellation ergeben sich Handlungsaufträge für eine gezielte Aufklärung von Patienten und nachhaltig wirksame Fortbildung der behandelnden Ärzte.
Wenige Publikationen beschäftigen sich mit der diastolischen Dysfunktion (DD) bei Schlaganfallpatienten. Um diese Datenlücke zu bearbeiten, wurden, im Rahmen der SICFAIL-Kohortenstudie, Schlaganfallpatienten hinsichtlich des Vorhandenseins einer diastolischen Funktionsstörung in Anlehnung an, zum Zeitpunkt des Verfassens dieser Arbeit, aktuelle Empfehlungen anhand echokardiographischer Parameter eingeteilt und charakterisiert. Zudem konnten Erkenntnisse über Einflussfaktoren gewonnen werden, die mit einer DD assoziiert sind.
Dabei zeigte sich, dass Schlaganfallpatienten mit einer diastolischen Funktionsstörung älter sind als Schlaganfallpatienten ohne DD und dass mit steigendem Lebensalter auch die Chance für eine DD ansteigt. Zudem bestand häufiger eine medikamentös behandelte aber auch eine unbehandelte arterielle Hypertonie, die mit dem Auftreten einer DD assoziiert ist. Diese Erkenntnisse decken sich mit den Ergebnissen verschiedener Arbeitsgruppen, die sich mit dem Vorkommen der DD in der Allgemeinbevölkerung beschäftigt haben.
Die im Rahmen dieser Arbeit ermittelte Prävalenz der diastolischen Funktionsstörung bei Schlaganfallpatienten ist deutlich niedriger als diejenige, die in anderen Forschungsarbeiten herausgefunden wurde. Unterschiedliche Definitionen der DD können ein Grund dafür sein.
Es bedarf aber weitere Forschungsarbeit in diese Richtung genauso wie eine stärkere Etablierung der aktuellen Definitionsgrundlagen der DD um umfassende und einheitliche Erkenntnisse über die diastolische Funktionsstörung bei Schlaganfallpatienten und auch in der Allgemeinbevölkerung zu erlangen. Zudem sollte ein weiteres Forschungsziel sein, mögliche Einflüsse der DD auf das Outcome der Patienten nach ischämischem Schlaganfall zu identifizieren, um diese gezielt in die Erarbeitung von Präventionsmaßnahmen aufzunehmen.
We assume that a specific health constraint, e.g., a certain aspect of bodily function or quality of life that is measured by a variable X, is absent (or irrelevant) in a healthy reference population (Ref0), and it is materially present and precisely measured in a diseased reference population (Ref1). We further assume that some amount of this constraint of interest is suspected to be present in a population under study (SP). In order to quantify this issue, we propose the introduction of an intuitive measure, the population comparison index (PCI), that relates the mean value of X in population SP to the mean values of X in populations Ref0 and Ref1. This measure is defined as PCI[X] = (mean[X|SP] − mean[X|Ref0])/(mean[X|Ref1] − mean[X|Ref0]) × 100[%], where mean[X|.] is the average value of X in the respective group of individuals. For interpretation, PCI[X] ≈ 0 indicates that the values of X in the population SP are similar to those in population Ref0, and hence, the impairment measured by X is not materially present in the individuals in population SP. On the other hand, PCI[X] ≈ 100 means that the individuals in SP exhibit values of X comparable to those occurring in Ref1, i.e., the constraint of interest is equally present in populations SP and Ref1. A value of 0 < PCI[X] < 100 indicates that a certain percentage of the constraint is present in SP, and it is more than in Ref0 but less than in Ref1. A value of PCI[X] > 100 means that population SP is even more affected by the constraint than population Ref1.
Now that mechanical thrombectomy has substantially improved outcomes after large-vessel occlusion stroke in up to every second patient, futile reperfusion wherein successful recanalization is not followed by a favorable outcome is moving into focus. Unfortunately, blood-based biomarkers, which identify critical stages of hemodynamically compromised yet reperfused tissue, are lacking. We recently reported that hypoxia induces the expression of endoglin, a TGF-β co-receptor, in human brain endothelium in vitro. Subsequent reoxygenation resulted in shedding. Our cell model suggests that soluble endoglin compromises the brain endothelial barrier function. To evaluate soluble endoglin as a potential biomarker of reperfusion (-injury) we analyzed its concentration in 148 blood samples of patients with acute stroke due to large-vessel occlusion. In line with our in vitro data, systemic soluble endoglin concentrations were significantly higher in patients with successful recanalization, whereas hypoxia alone did not induce local endoglin shedding, as analyzed by intra-arterial samples from hypoxic vasculature. In patients with reperfusion, higher concentrations of soluble endoglin additionally indicated larger infarct volumes at admission. In summary, we give translational evidence that the sequence of hypoxia and subsequent reoxygenation triggers the release of vasoactive soluble endoglin in large-vessel occlusion stroke and can serve as a biomarker for severe ischemia with ensuing recanalization/reperfusion.
(1) Background: The health-related quality of life (HRQOL) of colorectal cancer (CRC) survivors >10 years post-diagnosis is understudied. We aimed to compare the HRQOL of CRC survivors 14–24 years post-diagnosis to that of age- and sex-matched non-cancer controls, stratified by demographic and clinical factors. (2) Methods: We used data from 506 long-term CRC survivors and 1489 controls recruited from German population-based multi-regional studies. HRQOL was assessed with the European Organization for Research and Treatment of Cancer Quality of Life Core-30 (EORTC QLQ-C30) questionnaire. We estimated differences in the HRQOL of CRC survivors and controls with multiple regression, adjusted for age at survey, sex, and education, where appropriate. (3) Results: CRC survivors reported poorer social functioning but better health status/QOL than controls. CRC survivors, in general, had higher levels of symptom burden, and in particular diarrhea and constipation, regardless of demographic or clinical factors. In stratified analyses, HRQOL differed by age, sex, cancer type, and having a permanent stoma. (4) Conclusions: Although CRC survivors may have a comparable health status/QOL to controls 14–24 years after diagnosis, they still live with persistent bowel dysfunction that can negatively impact aspects of functioning. Healthcare providers should provide timely and adapted follow-up care to ameliorate potential long-term suffering.
The Internet of Things (IoT) enables a variety of smart applications, including smart home, smart manufacturing, and smart city. By enhancing Business Process Management Systems with IoT capabilities, the execution and monitoring of business processes can be significantly improved. Providing a holistic support for modeling, executing and monitoring IoT-driven processes, however, constitutes a challenge. Existing process modeling and process execution languages, such as BPMN 2.0, are unable to fully meet the IoT characteristics (e.g., asynchronicity and parallelism) of IoT-driven processes. In this article, we present BPMNE4IoT—A holistic framework for modeling, executing and monitoring IoT-driven processes. We introduce various artifacts and events based on the BPMN 2.0 metamodel that allow realizing the desired IoT awareness of business processes. The framework is evaluated along two real-world scenarios from two different domains. Moreover, we present a user study for comparing BPMNE4IoT and BPMN 2.0. In particular, this study has confirmed that the BPMNE4IoT framework facilitates the support of IoT-driven processes.
Background
Patients with coronary heart disease (CHD) with and without diabetes mellitus have an increased risk of recurrent events requiring multifactorial secondary prevention of cardiovascular risk factors. We compared prevalences of cardiovascular risk factors and its determinants including lifestyle, pharmacotherapy and diabetes mellitus among patients with chronic CHD examined within the fourth and fifth EUROASPIRE surveys (EA-IV, 2012–13; and EA-V, 2016–17) in Germany.
Methods
The EA initiative iteratively conducts European-wide multicenter surveys investigating the quality of secondary prevention in chronic CHD patients aged 18 to 79 years. The data collection in Germany was performed during a comprehensive baseline visit at study centers in Würzburg (EA-IV, EA-V), Halle (EA-V), and Tübingen (EA-V).
Results
384 EA-V participants (median age 69.0 years, 81.3% male) and 536 EA-IV participants (median age 68.7 years, 82.3% male) were examined. Comparing EA-IV and EA-V, no relevant differences in risk factor prevalence and lifestyle changes were observed with the exception of lower LDL cholesterol levels in EA-V. Prevalence of unrecognized diabetes was significantly lower in EA-V as compared to EA-IV (11.8% vs. 19.6%) while the proportion of prediabetes was similarly high in the remaining population (62.1% vs. 61.0%).
Conclusion
Between 2012 and 2017, a modest decrease in LDL cholesterol levels was observed, while no differences in blood pressure control and body weight were apparent in chronic CHD patients in Germany. Although the prevalence of unrecognized diabetes decreased in the later study period, the proportion of normoglycemic patients was low. As pharmacotherapy appeared fairly well implemented, stronger efforts towards lifestyle interventions, mental health programs and cardiac rehabilitation might help to improve risk factor profiles in chronic CHD patients.
Psychosocial factors affect mental health and health-related quality of life (HRQL) in a complex manner, yet gender differences in these interactions remain poorly understood. We investigated whether psychosocial factors such as social support and personal and work-related concerns impact mental health and HRQL differentially in women and men during the first year of the COVID-19 pandemic. Between June and October 2020, the first part of a COVID-19-specific program was conducted within the “Characteristics and Course of Heart Failure Stages A-B and Determinants of Progression (STAAB)” cohort study, a representative age- and gender-stratified sample of the general population of Würzburg, Germany. Using psychometric networks, we first established the complex relations between personal social support, personal and work-related concerns, and their interactions with anxiety, depression, and HRQL. Second, we tested for gender differences by comparing expected influence, edge weight differences, and stability of the networks. The network comparison revealed a significant difference in the overall network structure. The male (N = 1370) but not the female network (N = 1520) showed a positive link between work-related concern and anxiety. In both networks, anxiety was the most central variable. These findings provide further evidence that the complex interplay of psychosocial factors with mental health and HRQL decisively depends on gender. Our results are relevant for the development of gender-specific interventions to increase resilience in times of pandemic crisis.
Long-term sequelae in hospitalized Coronavirus Disease 2019 (COVID-19) patients may result in limited quality of life. The current study aimed to determine health-related quality of life (HRQoL) after COVID-19 hospitalization in non-intensive care unit (ICU) and ICU patients. This is a single-center study at the University Hospital of Wuerzburg, Germany. Patients eligible were hospitalized with COVID-19 between March 2020 and December 2020. Patients were interviewed 3 and 12 months after hospital discharge. Questionnaires included the European Quality of Life 5 Dimensions 5 Level (EQ-5D-5L), patient health questionnaire-9 (PHQ-9), the generalized anxiety disorder 7 scale (GAD-7), FACIT fatigue scale, perceived stress scale (PSS-10) and posttraumatic symptom scale 10 (PTSS-10). 85 patients were included in the study. The EQ5D-5L-Index significantly differed between non-ICU (0.78 ± 0.33 and 0.84 ± 0.23) and ICU (0.71 ± 0.27; 0.74 ± 0.2) patients after 3- and 12-months. Of non-ICU 87% and 80% of ICU survivors lived at home without support after 12 months. One-third of ICU and half of the non-ICU patients returned to work. A higher percentage of ICU patients was limited in their activities of daily living compared to non-ICU patients. Depression and fatigue were present in one fifth of the ICU patients. Stress levels remained high with only 24% of non-ICU and 3% of ICU patients (p = 0.0186) having low perceived stress. Posttraumatic symptoms were present in 5% of non-ICU and 10% of ICU patients. HRQoL is limited in COVID-19 ICU patients 3- and 12-months post COVID-19 hospitalization, with significantly less improvement at 12-months compared to non-ICU patients. Mental disorders were common highlighting the complexity of post-COVID-19 symptoms as well as the necessity to educate patients and primary care providers about monitoring mental well-being post COVID-19.
Stress experiences of healthcare assistants in family practice at the onset of the COVID-19 pandemic
(2023)
Background: At the beginning of the pandemic in 2020, healthcare assistants in general practices were confronted with numerous new challenges. The aim of the study was to investigate the stress factors of healthcare assistants in March/April 2020 as well as in the further course of the pandemic in 2020.
Methods: From August to December 2020, 6,300 randomly selected healthcare assistants in four German states were invited to participate in the study. We performed a mixed methods design using semi-structured telephone interviews and a cross-sectional survey with quantitative and open questions. The feeling of psychological burden was assessed on a 6-point likert-scale. We defined stress factors and categorized them in patient, non-patient and organizational stress factors. The results of the three data sets were compared within a triangulation protocol.
Results: One thousand two hundred seventy-four surveys were analyzed and 28 interviews with 34 healthcare assistants were conducted. Of the participants, 29.5% reported experiences of a very high or high feeling of psychological burden in March/April 2020. Worries about the patients’ health and an uncertainty around the new disease were among the patient-related stress factors. Non-patient-related stress factors were problems with the compatibility of work and family, and the fear of infecting relatives with COVID-19. Organizational efforts and dissatisfaction with governmental pandemic management were reported as organizational stress factors. Support from the employer and team cohesion were considered as important resources.
Discussion: It is necessary to reduce stress among healthcare assistants by improving their working conditions and to strengthen their resilience to ensure primary healthcare delivery in future health crises.
During the COVID-19 pandemic, the novel coronavirus had an impact not only on public health but also on the mental health of the population. Public sentiment on mental health and depression is often captured only in small, survey-based studies, while work based on Twitter data often only looks at the period during the pandemic and does not make comparisons with the pre-pandemic situation. We collected tweets that included the hashtags #MentalHealth and #Depression from before and during the pandemic (8.5 months each). We used LDA (Latent Dirichlet Allocation) for topic modeling and LIWC, VADER, and NRC for sentiment analysis. We used three machine-learning classifiers to seek evidence regarding an automatically detectable change in tweets before vs. during the pandemic: (1) based on TF-IDF values, (2) based on the values from the sentiment libraries, (3) based on tweet content (deep-learning BERT classifier). Topic modeling revealed that Twitter users who explicitly used the hashtags #Depression and especially #MentalHealth did so to raise awareness. We observed an overall positive sentiment, and in tough times such as during the COVID-19 pandemic, tweets with #MentalHealth were often associated with gratitude. Among the three classification approaches, the BERT classifier showed the best performance, with an accuracy of 81% for #MentalHealth and 79% for #Depression. Although the data may have come from users familiar with mental health, these findings can help gauge public sentiment on the topic. The combination of (1) sentiment analysis, (2) topic modeling, and (3) tweet classification with machine learning proved useful in gaining comprehensive insight into public sentiment and could be applied to other data sources and topics.
Summary
Blood oxygen saturation is an important clinical parameter, especially in postoperative hospitalized patients, monitored in clinical practice by arterial blood gas (ABG) and/or pulse oximetry that both are not suitable for a long-term continuous monitoring of patients during the entire hospital stay, or beyond. Technological advances developed recently for consumer-grade fitness trackers could—at least in theory—help to fill in this gap, but benchmarks on the applicability and accuracy of these technologies in hospitalized patients are currently lacking. We therefore conducted at the postanaesthesia care unit under controlled settings a prospective clinical trial with 201 patients, comparing in total >1,000 oxygen blood saturation measurements by fitness trackers of three brands with the ABG gold standard and with pulse oximetry. Our results suggest that, despite of an overall still tolerable measuring accuracy, comparatively high dropout rates severely limit the possibilities of employing fitness trackers, particularly during the immediate postoperative period of hospitalized patients.
Highlights
•The accuracy of O2 measurements by fitness trackers is tolerable (RMSE ≲4%)
•Correlation with arterial blood gas measurements is fair to moderate (PCC = [0.46; 0.64])
•Dropout rates of fitness trackers during O2 monitoring are high (∼1/3 values missing)
•Fitness trackers cannot be recommended for O2 measuring during critical monitoring
Objectives
To evaluate whether a multimodal intervention in general practice reduces the proportion of second line antibiotic prescriptions and the overall proportion of antibiotic prescriptions for uncomplicated urinary tract infections in women.
Design
Parallel, cluster randomised, controlled trial.
Setting
General practices in five regions in Germany. Data were collected between 1 April 2021 and 31 March 2022.
Participants
General practitioners from 128 randomly assigned practices.
Interventions
Multimodal intervention consisting of guideline recommendations for general practitioners and patients, provision of regional data for antibiotic resistance, and quarterly feedback, which included individual first line and second line proportions of antibiotic prescribing, benchmarking with regional or supra-regional practices, and telephone counselling. Participants in the control group received no information on the intervention.
Main outcome measures
Primary outcome was the proportion of second line antibiotics prescribed by general practices, in relation to all antibiotics prescribed, for uncomplicated urinary tract infections after one year between the intervention and control group. General practices were randomly assigned in blocks (1:1), with a block size of four, into the intervention or control group using SAS version 9.4; randomisation was stratified by region. The secondary outcome was the prescription proportion of all antibiotics, relative within all cases (instances of UTI diagnosis), for the treatment of urinary tract infections after one year between the groups. Adverse events were assessed as exploratory outcomes.
Results
110 practices with full datasets identified 10 323 cases during five quarters (ie, 15 months). The mean proportion of second line antibiotics prescribed was 0.19 (standard deviation 0.20) in the intervention group and 0.35 (0.25) in the control group after 12 months. After adjustment for preintervention proportions, the mean difference was −0.13 (95% confidence interval −0.21 to −0.06, P<0.001). The overall proportion of all antibiotic prescriptions for urinary tract infections over 12 months was 0.74 (standard deviation 0.22) in the intervention and 0.80 (0.15) in the control group with a mean difference of −0.08 (95% confidence interval −0.15 to −0.02, P<0.029). No differences were noted in the number of complications (ie, pyelonephritis, admission to hospital, or fever) between the groups.
Conclusions
The multimodal intervention in general practice significantly reduced the proportion of second line antibiotics and all antibiotic prescriptions for uncomplicated urinary tract infections in women.
Trial registration
German Clinical Trials Register (DRKS), DRKS00020389