Publications by authors named "Frederik Peters"

Background Cancer is one of the main causes of a high burden of disease and one of the strongest contributors to earlier mortality among lower socioeconomic groups in Germany. Therefore, studying socio-economic inequalities in cancer incidence is of high relevance from a public-health and health-equity lens. The aim of this study was to examine in more depth time trends in socioeconomic inequalities in cancer incidence and the related potential for reducing the incidence of specific cancers across Germany.

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Introduction: In Europe, cancer survival rates are high and improving for children (0-14 years) and AYAs (15-39 years). However, AYAs often have worse outcomes than children but better than adults. Using EUROCARE data, this study analyzes 5-year relative survival rates across age groups, highlighting age-specific differences and survival trends over time to address persistent disparities.

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Background: Adolescents and young adults (AYAs), aged 15-39, face unique challenges as cancer survivors, including long-term health issues treatment. This study applies a novel approach to estimate the relative risk (RR) of mortality from non-cancer causes in AYA cancer patients compared to the general population and the cure fraction (CF) for AYA patients.

Methods: Conventional and new mixture cure models with various parametric survival functions were applied to the most common AYA cancers.

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Introduction: The number of elderly patients (≥90 years) admitted to intensive care units (ICUs) is continuously increasing. Survival estimations that differentiate into population and excess mortality are lacking but might be warranted given the higher baseline mortality in this group.

Methods: We evaluated excess mortality and risk factors in 1076 ICU patients ≥90 treated at the University Medical Center Hamburg-Eppendorf, Germany, from 2008 to 2019 by relative survival analysis.

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Article Synopsis
  • A study investigates how socioeconomic status (SES) affects the survival rates of diffuse large B-cell lymphoma (DLBCL) patients in Germany, analyzing data from nearly 50,000 patients.
  • Patients living in low SES areas had lower 5-year overall survival rates (59.2%) compared to those in middle (61.8%) and high SES (64.1%) areas.
  • However, when accounting for premature mortality in the analysis, the negative effects of low SES on survival disappeared, suggesting that higher health complications, not the quality of DLBCL treatment, are the main issue.
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Background: Generating synthetic patient data is crucial for medical research, but common approaches build up on black-box models which do not allow for expert verification or intervention. We propose a highly available method which enables synthetic data generation from real patient records in a privacy preserving and compliant fashion, is interpretable and allows for expert intervention.

Methods: Our approach ties together two established tools in medical informatics, namely OMOP as a data standard for electronic health records and Synthea as a data synthetization method.

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Objective: There has been a decline in hospital admission rates in many countries since the beginning of the COVID-19 pandemic. Patient selection differed from episodes before the pandemic. This study investigated changes in baseline characteristics as well as the short term mortality rate and probability of receiving an invasive procedure while considering sex disparities.

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Age-standardized cancer incidence has decreased over the last years for many cancer sites in developed countries. Whether these trends led to narrowing or widening socioeconomic inequalities in cancer incidence is unknown. Using cancer registry data covering 48 million inhabitants in Germany, the ecological association between age-standardized total and site specific (colorectal, lung, prostate and breast) cancer incidence in 2007 to 2018 and a deprivation index on district level (aggregated to quintiles) was investigated.

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This population-based cross-sectional cohort study investigated the association of the Mediterranean and DASH (Dietary Approach to Stop Hypertension) diet as well as supplement intake with gray-scale median (GSM) and the presence of carotid plaques comparing women and men. Low GSM is associated with plaque vulnerability. Ten thousand participants of the Hamburg City Health Study aged 45-74 underwent carotid ultrasound examination.

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Objective: The goal of this study was to compare clinical outcomes in patients with peripheral arterial occlusive disease undergoing revascularisation by peripheral endovascular intervention (EVI), bypass surgery, endarterectomy (EA), and hybrid surgery in an unselected real world setting.

Methods: This was a German, prospective, multicentre, comparative cohort study, enrolling patients at hospital admission for revascularisation at 35 vascular centres with 12 months of follow up. Primary composite endpoints were major amputation or death, major adverse limb events, and any minor or major amputation.

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Objective: There is a paucity of current figures on the prevalence of carotid and lower extremity peripheral arterial disease (PAD) and abdominal aortic aneurysm (AAA) as well as the associated cardiovascular risk factors to support considerations on screening programmes.

Methods: In the population based Hamburg City Health Study, participants between 45 and 74 years were randomly recruited. In the current cross sectional analysis of the first 10 000 participants enrolled between February 2016 and November 2018, the prevalence of carotid artery disease (intima-media thickness ≥ 1 mm), lower extremity PAD (ankle brachial index ≤ 0.

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Objective: To examine long-term outcomes after endovascular (EVAR) and open repairs (OAR) for intact abdominal aortic aneurysms in Australia, Germany, and the United States, using a unified study design.

Background: Similarities and differences in long-term outcomes after EVAR versus OAR across countries remained unclear, given differences in designs across existing studies.

Methods: We identified patients aged >65 years undergoing intact abdominal aortic aneurysm repairs during 2010-2017/2018.

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Objective: There is a paucity of data on the relationship between hospital procedure volume and outcomes after inpatient treatment of symptomatic peripheral arterial disease (PAD). This study aimed to generate meaningful hypotheses to support the ongoing discussion.

Methods: Data derived from BARMER, Germany's second largest insurance provider, were linked with nationwide hospital procedure volumes from mandatory hospital quality reports.

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Fifty articles comprising 18 randomized controlled trials (RCTs), 16 observational studies, and 16 meta-analyses on the safety and effectiveness of sodium-glucose cotransporter 2 inhibitors were evaluated in the current review. Only one-fourth of the cohorts of recent trials had peripheral arterial disease (PAD), whereas this subgroup was at high risk for amputations. Despite a remarkable heterogeneity of RCTs, only 2 trials on canagliflozin suggested excess amputation rates, whereas several observational studies generated conflicting conclusions and remained short on possible explanations.

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Objectives: Patients with peripheral arterial occlusive disease (PAOD) are at risk of worsening limb symptoms, major adverse cardiovascular events and exhibit an impaired life expectancy. There is a lack of evidence on the extent of pharmacological secondary prevention in PAOD patients. This study assesses treatment patterns of antithrombotic agents in symptomatic PAOD patients.

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Objective: The current study aimed to determine the relationship between chronic kidney disease (CKD) and major 12-month outcomes for patients with in-hospital treatment for symptomatic peripheral arterial occlusive disease (PAOD).

Methods: An analysis of the prospective longitudinal multicentric cohort study with 12-month follow-up was conducted including patients who underwent endovascular or open surgery for symptomatic PAOD at 35 German vascular centres (initial study protocol: NCT03098290). Severity of CKD was grouped into four stages combining information about the estimated glomerular filtration rate (eGFR) at baseline and dialysis dependency.

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Background: Broadly available digital and mobile health applications (also known as mHealth) have recently gained increasing attention by the vascular community, but very little is known about the dissemination and acceptance of such technologies in certain target populations. The current study aimed to determine the user behaviour and acceptance of such digital technologies amongst patients with peripheral arterial disease (PAD).

Methods: A cross-sectional survey of consecutively treated inpatients at 12 university institutions, as well as one non-university institution, was conducted.

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Objective: There is a paucity of evidence concerning the risk of bleeding after hospitalisation for symptomatic peripheral artery disease (PAD) in everyday clinical practice, as randomised clinical trials commonly exclude patients with heightened risk. The current study aimed to develop a pragmatic risk score that enables prediction of major bleeding during the first year after index discharge.

Methods: Unselected retrospective data from the second largest insurance fund in Germany, BARMER, were used to identify patients with a first hospitalisation for PAD registered between 1 January 2010 and 31 December 2018.

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Objective: To assess the association between long term risk of hospitalisation for heart failure (HHF) and lower extremity minor and major amputation (LEA) in patients initiating sodium glucose cotransporter 2 inhibitors (SGLT2i) suffering from type 2 diabetes and peripheral arterial disease (PAD). Outcomes were compared with patients without PAD and evaluated separately for the time periods before and after the official warning of the European Medicines Agency (EMA) in early 2017.

Methods: This study used BARMER German health claims data including all patients suffering from type 2 diabetes initiating SGLT2i therapy between 1 January 2013 and 31 December 2019 with follow up until the end of 2020.

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