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Association of acute myocardial infarction with influenza: A nationwide observational study

Influenza may precipitate cardiovascular disease, but influenza typically peaks in winter, coinciding with other triggers of myocardial infarction (MI) such as low air temperature, high wind velocity, low atmospheric pressure, and short sunshine duration. Read more at https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0236866

https://www.lupop.lu.se/article/association-acute-myocardial-infarction-influenza-nationwide-observational-study - 2025-12-01

Patterns of urinary albumin and IgM associate with markers of vascular ageing in young to middle-aged individuals in the Malmö offspring study

Increased urinary excretion of IgM and low-grade albuminuria are associated with increased risk of cardiovascular morbidity and mortality. The objective of this study was to investigate the association between urinary IgM, albuminuria, and vascular parameters reflecting arterial structure and function. Read more at https://bmccardiovascdisord.biomedcentral.com/articles/10.1186/s12872-020-01638-3

https://www.lupop.lu.se/article/patterns-urinary-albumin-and-igm-associate-markers-vascular-ageing-young-middle-aged-individuals - 2025-12-01

Mental health and academic performance: a study on selection and causation effects from childhood to early adulthood

An inverse relationship between mental health and academic achievement is a well-known phenomenon in the scientific literature. However, how and when this association develops is not fully understood and there is a lack of longitudinal, population-based studies on young children. Early intervention is important if associations are to be found already during childhood. The aim of the present study

https://www.lupop.lu.se/article/mental-health-and-academic-performance-study-selection-and-causation-effects-childhood-early - 2025-12-01

Reversal Treatment in Oral Anticoagulant-Related Intracerebral Hemorrhage—An Observational Study Based on the Swedish Stroke Register

Intracerebral hemorrhage (ICH) is the most serious adverse effect of oral anticoagulant (OAC) treatment. The effect of OAC reversal therapy on outcome is uncertain. We compared 90-day survival and functional outcome in patients with OAC-ICH who received OAC reversal therapy with those who did not. Read more at https://www.frontiersin.org/articles/10.3389/fneur.2020.00760/full

https://www.lupop.lu.se/article/reversal-treatment-oral-anticoagulant-related-intracerebral-hemorrhage-observational-study-based - 2025-12-01

The Swedish Scandinavian donations and transfusions database (SCANDAT3‐S) – 50 years of donor and recipient follow‐up

The two previous versions of the Scandinavian donations and transfusions (SCANDAT) databases, encompassing data on blood donors, blood components, transfusions, and transfused patients linked to national health registers in Sweden and Denmark up until 2012, have been used to study donor health, disease transmission, the role of donor characteristics, and more. Read more at https://onlinelibrary.wi

https://www.lupop.lu.se/article/swedish-scandinavian-donations-and-transfusions-database-scandat3-s-50-years-donor-and-recipient - 2025-12-01

Can the validity of a cohort be improved by reweighting based on register data? Evidence from the Swedish MDC study

We reweighted the Malmö Diet and Cancer (MDC) study based on population register data on background variables, including socio-demographics and hospital admissions for both participants and the background population. Following individuals from baseline in 1991-1996 and at most until 2016, we studied mortality (all-cause, cancer, and CVD), incidences (cancer and CVD), and associations between these

https://www.lupop.lu.se/article/can-validity-cohort-be-improved-reweighting-based-register-data-evidence-swedish-mdc-study - 2025-12-01

NordMAN facilitates researchers’ access to Nordic microdata and provides metadata on existing Nordic registers

A project jointly conducted by the Nordic national statistical institutes and funded by NordForsk was initiated in 2015. The project, Nordic Microdata Access Network (NordMAN), seeks to establish a single pan-Nordic solution to facilitate researchers' access to the Nordic metadata compiled for statistical purposes, and to provide an overview of the existing Nordic registers. The project’s common N

https://www.lupop.lu.se/article/nordman-facilitates-researchers-access-nordic-microdata-and-provides-metadata-existing-nordic - 2025-12-01

Exploring the impact of cancer registry completeness on international cancer survival differences: a simulation study

Data from population-based cancer registries are often used to compare cancer survival between countries or regions. The ICBP SURVMARK-2 study is an international partnership aiming to quantify and explore the reasons behind survival differences across high-income countries. However, the magnitude and relevance of differences in cancer survival between countries have been questioned, as it is argu

https://www.lupop.lu.se/article/exploring-impact-cancer-registry-completeness-international-cancer-survival-differences-simulation - 2025-12-01

Probabilistic Quantification of Bias to Combine the Strengths of Population-Based Register Data and Clinical Cohorts-Studying Mortality in Osteoarthritis

We propose combining population-based register data with a nested clinical cohort to correct misclassification and unmeasured confounding through probabilistic quantification of bias. We have illustrated this approach by estimating the association between knee osteoarthritis and mortality. We used the Swedish Population Register to include all persons resident in the Skåne region in 2008 and asses

https://www.lupop.lu.se/article/probabilistic-quantification-bias-combine-strengths-population-based-register-data-and-clinical-0 - 2025-12-01

The Validity of Intracerebral Hemorrhage Diagnoses in the Danish Patient Registry and the Danish Stroke Registry

Based on discharge summaries and brain imaging reports, we estimated the positive predictive value (PPV) of a first-ever diagnosis code for ICH (ICD-10, code I61) for all patients in the Region of Southern Denmark (1.2 million) during 2009– 2017 according to either DNPR or DSR. We estimated PPVs for any non-traumatic ICH (a-ICH) and spontaneous ICH (s-ICH) alone (ie, without underlying structural

https://www.lupop.lu.se/article/validity-intracerebral-hemorrhage-diagnoses-danish-patient-registry-and-danish-stroke-registry - 2025-12-01

The Israel Registry for Alzheimer’s Prevention (IRAP) Study: Design and Baseline Characteristics

Participants are members of the Maccabi Health Services, 40–65 years of age, with exquisitely detailed laboratory, medical diagnoses and medication data available in the Maccabi electronic medical records since 1998. Data collected through IRAP include genetic, sociodemographic, cognitive, brain imaging, lifestyle, and health-related characteristics at baseline and every three years thereafter. Re

https://www.lupop.lu.se/article/israel-registry-alzheimers-prevention-irap-study-design-and-baseline-characteristics - 2025-12-01

The Importance of Cancer Registry Linkage for Studying Rare Cancers in Prospective Cohorts

Large prospective cohort studies may offer an opportunity to study the etiology and natural history of rare cancers. Cancer diagnoses in observational cohort studies are often self-reported. Little information exists on the validity of self-reported cancer diagnosis, especially rare cancers, in Canada. This study evaluated the validity of self-reported cancer diagnosis in Alberta’s Tomorrow Projec

https://www.lupop.lu.se/article/importance-cancer-registry-linkage-studying-rare-cancers-prospective-cohorts - 2025-12-01

Administrative and Registry Databases for Patient Safety Tracking and Quality Improvement

Acquisition of data on clinical performance is essential to improve outcomes in surgery. Large, national datasets allow hospitals to monitor events involving patient safety, complications, and benchmark against peer hospitals and facilitate quality improvement (QI) development. Although clinical datasets are often preferable, administrative data also have potential for actionable QI. Hospitals sho

https://www.lupop.lu.se/article/administrative-and-registry-databases-patient-safety-tracking-and-quality-improvement - 2025-12-01

The validity of child and adolescent depression diagnoses in the Danish psychiatric central research register

A nationwide random sample of 500 children (6–17 years) diagnosed with depression between 1996 and 2016 was identified in the DPCRR. Psychiatric hospital records were reviewed and rated using an online checklist. The primary outcome was whether depressive symptoms and functional impairment documented in hospital records justified a depressive disorder diagnosis based on ICD‐10 or DSM‐5 diagnostic

https://www.lupop.lu.se/article/validity-child-and-adolescent-depression-diagnoses-danish-psychiatric-central-research-register - 2025-12-01

Developing a trauma registry in a middle-income country - Botswana

A cross sectional study was piloted at a tertiary hospital and a secondary level hospital in Botswana. The study consisted of two stages: stage 1 - stakeholders' consultation and trauma registry prototype was designed. Stage 2 consisted of two phases: Phase I involved retrospective collection of existing data from existing data collection tools and Phase II collected data prospectively using the p

https://www.lupop.lu.se/article/developing-trauma-registry-middle-income-country-botswana - 2025-12-01

The validity of child and adolescent depression diagnoses in the Danish psychiatric central research register

A nationwide random sample of 500 children (6–17 years) diagnosed with depression between 1996 and 2016 was identified in the DPCRR. Psychiatric hospital records were reviewed and rated using an online checklist. The primary outcome was whether depressive symptoms and functional impairment documented in hospital records justified a depressive disorder diagnosis based on ICD‐10 or DSM‐5 diagnostic

https://www.lupop.lu.se/article/validity-child-and-adolescent-depression-diagnoses-danish-psychiatric-central-research-register-0 - 2025-12-01

Population research awarded the Färs and Frosta Prize

Anna Tegunimataka awarded prize for best dissertation at LUSEM Anna Tegunimataka, who finished her PhD in economic history last June, has been awarded the Färs and Frosta Prize for best doctoral dissertation at LUSEM. The prize is 100,000 SEK. The titel of her thesis is: Trajectories of Integration: Naturalization, Intermarriage and Education in Denmark, 1980-2015

https://www.lupop.lu.se/article/population-research-awarded-fars-and-frosta-prize - 2025-12-01