Adaptation of the Charlson Comorbidity Index for Register-Based Research in Sweden.

abstract：:Background: The Swedish National Patient Registry (NPR) is a nationwide registry that is used extensively for epidemiological research. Using the NPR, we recently found a recurrent pregnancy loss (RPL) incidence of 650/100,000 (0.65%) pregnant women in Sweden. It is of great importance that the quality of the coding i...

journal_title：Clinical epidemiology

authors： Rasmark Roepke E,Christiansen OB,Hansson SR

更新日期：2019-05-08 00:00:00

abstract：:The Danish health care system provides partial reimbursement of most prescription medications in Denmark. The dispensation of prescription medications is registered in administrative databases. Each time a prescription is redeemed at a pharmacy, an electronic record is generated with information related to the user, p...

journal_title：Clinical epidemiology

authors： Johannesdottir SA,Horváth-Puhó E,Ehrenstein V,Schmidt M,Pedersen L,Sørensen HT

更新日期：2012-01-01 00:00:00

abstract：INTRODUCTION:Few modern population-based estimates of the prognosis of ruptured abdominal aortic aneurysm (rAAA) exist. METHODS AND MATERIALS:From 1994-2008, a total of 6954 rAAA cases were identified in Danish nationwide population-based registries. RESULTS:Of 3148 (45%) surgery cases, 1454 (46%) died within 30 days...

journal_title：Clinical epidemiology

authors： Lindholt JS,Søgaard R,Laustsen J

更新日期：2012-01-01 00:00:00

abstract：OBJECTIVE:Invasive bladder cancer (IBC) is a common urological malignancy accounting for 4%-5% of all cancers in Denmark. Our aim was to examine possible changes in short- and long-term survival of patients with IBC during 1998-2009. STUDY DESIGN AND SETTING:Data on all patients (N = 4032) with an incident diagnosis o...

journal_title：Clinical epidemiology

authors： Lund L,Erichsen R,Nørgaard M,Larsen EH,Borre M,Jacobsen J

更新日期：2011-01-01 00:00:00

abstract：BACKGROUND:Severe infection resulting in sepsis is recognized as a leading cause of morbidity and mortality worldwide. The purpose of this study is to use longitudinal, population-based data to report national-level hospital metrics, providing a current assessment of the status of sepsis hospitalizations in Canadian ch...

journal_title：Clinical epidemiology

authors： Thompson GC,Kissoon N

更新日期：2014-12-05 00:00:00

abstract：Purpose:Obesity is an established risk factor for venous thromboembolism (VTE), while studies on physical inactivity and VTE risk show conflicting results. We examined whether physical activity modified the association between obesity and VTE. Patients and Methods:We conducted a population-based cohort study by combin...

journal_title：Clinical epidemiology

authors： Solli H,Olsen M,Larsen FB,Pedersen L,Schmidt M

更新日期：2020-12-08 00:00:00

abstract：AIM OF THE DATABASE:The main purpose of the database of the Danish Renal Cancer Group (DaRenCaData) is to improve the quality of renal cancer treatment in Denmark and secondarily to conduct observational research. STUDY POPULATION:DaRenCaData includes all Danish patients with a first-time diagnosis of renal cancer in ...

journal_title：Clinical epidemiology

authors： Petersen AC,Søgaard M,Mehnert F,Larsen EH,Donskov F,Azawi NH,Kromann-Andersen B

更新日期：2016-10-25 00:00:00

abstract：:Routinely-collected health data (RCD) are now used for a wide range of studies, including observational studies, comparative effectiveness research, diagnostics, studies of adverse effects, and predictive analytics. At the same time, limitations inherent in using data collected without specific a priori research quest...

journal_title：Clinical epidemiology

authors： Nicholls SG,Langan SM,Sørensen HT,Petersen I,Benchimol EI

更新日期：2016-10-19 00:00:00

abstract：Background:In 2012, liver cancer ranked as the fifth and eighth most common cancer in men and women, respectively, in urban Shanghai. This study aims to present the trend and projection of age-specific incidence and mortality of liver cancer in Shanghai. Methods:We extracted data of liver cancer incident cases and dea...

journal_title：Clinical epidemiology

authors： Bai L,Liu Z,Fang Q,Yan Q,Shi O,Bao P,Mu L,Chen X,Zhang T

更新日期：2018-03-09 00:00:00

abstract：BACKGROUND:With the emergence of new lipid-lowering therapies, more patients are expected to achieve substantial lowering of low-density lipoprotein cholesterol (LDL-C). However, there are limited data examining the clinical experience of patients with low (<1.3 mmol/L) or very low (<0.65 mmol/L) levels of LDL-C. To pr...

journal_title：Clinical epidemiology

authors： Schmidt SA,Heide-Jørgensen U,Manthripragada AD,Ehrenstein V

更新日期：2015-02-26 00:00:00

abstract：BACKGROUND:Data on the safety of selective serotonin-reuptake inhibitors (SSRIs) in pregnancy are inconsistent. We examined associations between SSRI use during early pregnancy and risk of congenital malformations in infants. METHODS:Set in Northern Denmark, our population-based prevalence study included 216,042 women...

journal_title：Clinical epidemiology

authors： Kornum JB,Nielsen RB,Pedersen L,Mortensen PB,Nørgaard M

更新日期：2010-08-09 00:00:00

abstract：OBJECTIVE:The Department of Hematology, Zealand University Hospital, Denmark, and the National Institute of Public Health, University of Southern Denmark, created the first nationwide, population-based, and the most comprehensive cross-sectional health-related quality of life (HRQoL) survey of patients with myeloprolif...

journal_title：Clinical epidemiology

authors： Brochmann N,Flachs EM,Christensen AI,Andersen CL,Juel K,Hasselbalch HC,Zwisler AD

更新日期：2017-03-02 00:00:00

abstract：AIM:In 2008, the Danish National Chronic Lymphocytic Leukemia Registry was founded within the Danish National Hematology Database. The primary aim of the registry is to assure quality of diagnosis and care of patients with chronic lymphocytic leukemia (CLL) in Denmark. Secondarily, to evaluate adherence to national gui...

journal_title：Clinical epidemiology

authors： da Cunha-Bang C,Geisler CH,Enggaard L,Poulsen CB,de Nully Brown P,Frederiksen H,Bergmann OJ,Pulczynski EJ,Pedersen RS,Nielsen LH,Christiansen I,Niemann CU

更新日期：2016-10-25 00:00:00

abstract：:The management of brain-dead organ donors is complex. The use of inotropic agents and replacement of depleted hormones (hormonal replacement therapy) is crucial for successful multiple organ procurement, yet the optimal hormonal replacement has not been identified, and the statistical adjustment to determine the best ...

journal_title：Clinical epidemiology

authors： Mi Z,Novitzky D,Collins JF,Cooper DK

更新日期：2014-12-22 00:00:00

abstract：BACKGROUND:Data from the Nordic health care registers have been of great value in perinatal epidemiological research. It has been assumed that findings from the Nordic population (Denmark, Finland, Iceland, Norway, and Sweden) are applicable to other populations as well, including the population of the US. OBJECTIVE:T...

journal_title：Clinical epidemiology

authors： Löfling L,Bröms G,Bahmanyar S,Kieler H

更新日期：2016-08-03 00:00:00

abstract：BACKGROUND:Case-control studies are a common and efficient means of studying rare diseases or illnesses with long latency periods. Matching of cases and controls is frequently employed to control the effects of known potential confounding variables. The analysis of matched data requires specific statistical methods. M...

journal_title：Clinical epidemiology

authors： Niven DJ,Berthiaume LR,Fick GH,Laupland KB

更新日期：2012-01-01 00:00:00

abstract：:Characterizing the relations between exposures and diseases is the central tenet of epidemiology. Researchers may want to evaluate exposure-disease causation by assessing whether the disease under concern is induced by the various exposures - the so-called "attribution". In this paper, the authors propose a method to ...

journal_title：Clinical epidemiology

authors： Chen C,Lee WC

更新日期：2018-04-27 00:00:00

abstract：Purpose:Substantial heterogeneity exists in reported kidney function decline in pre-dialysis chronic kidney disease (CKD). By design, kidney function decline can be studied in CKD 3-5 cohorts or dialysis-based studies. In the latter, patients are selected based on the fact that they initiated dialysis, possibly leading...

journal_title：Clinical epidemiology

authors： Janmaat CJ,van Diepen M,van Hagen CC,Rotmans JI,Dekker FW,Dekkers OM

更新日期：2018-05-25 00:00:00

abstract：BACKGROUND:Primary hyperparathyroidism (pHPT) is associated with an increased risk of developing breast cancer, but little is known about the underlying factors. The aim of this study was to compare women with a history of pHPT and a reference population in terms of standard factors predictive of prognosis and response...

journal_title：Clinical epidemiology

authors： Norenstedt S,Granath F,Ekbom A,Bergh J,Lambe M,Adolfsson J,Warnberg F,Zedenius J,Nilsson IL

更新日期：2011-03-25 00:00:00

abstract：Background and aims:Canada's large geographic area and low population density pose challenges in access to specialized health care for remote and rural residents. We compared health services use, surgical rate, and specialist gastroenterologist care in rural and urban inflammatory bowel disease (IBD) patients in Canada...

journal_title：Clinical epidemiology

authors： Benchimol EI,Kuenzig ME,Bernstein CN,Nguyen GC,Guttmann A,Jones JL,Potter BK,Targownik LE,Catley CA,Nugent ZJ,Tanyingoh D,Mojaverian N,Underwood FE,Siddiq S,Otley AR,Bitton A,Carroll MW,deBruyn JC,Dummer TJ,El-Matar

更新日期：2018-11-08 00:00:00

abstract：:When healthcare professionals have the choice between several drug treatments for their patients, they often experience considerable decision uncertainty because many decisions simply have no single "best" choice. The challenges are manifold and include that guideline recommendations focus on randomized controlled tri...

journal_title：Clinical epidemiology

authors： Meid AD,Ruff C,Wirbka L,Stoll F,Seidling HM,Groll A,Haefeli WE

更新日期：2020-11-02 00:00:00

abstract：Background:The Swedish Quality Register for Inflammatory Bowel Disease (SWIBREG) contains clinical data for the study of inflammatory bowel disease (IBD). The Epidemiology Strengthened by histoPathology Reports in Sweden (ESPRESSO) cohort was recently established for the study of gastrointestinal histopathology. We aim...

journal_title：Clinical epidemiology

authors： Axelrad JE,Sachs MC,Ludvigsson JF,Olén O,SWIBREG Study Group.

更新日期：2020-10-09 00:00:00

abstract：BACKGROUND:Comorbidity indices summarize complex medical histories into concise ordinal scales, facilitating stratification and regression in epidemiologic analyses. Low subject prevalence in the highest strata of a comorbidity index often prompts combination of upper categories into a single stratum ('collapsing'). O...

journal_title：Clinical epidemiology

authors： Ahern TP,Bosco JL,Silliman RA,Yood MU,Field TS,Wei F,Lash TL

更新日期：2009-08-09 00:00:00

abstract：:Introduction: Spontaneous (non-traumatic) subarachnoid hemorrhage (ntSAH) is frequently suspected in the emergency department, but the incidence rate is low. Diagnosis registers can provide valuable data for research in uncommon conditions like ntSAH. Unfortunately, validity vary in the registers. We aimed to assess t...

journal_title：Clinical epidemiology

authors： Sonne A,Andersen JB,Rasmussen LS

更新日期：2019-05-01 00:00:00

abstract：BACKGROUND:To date there has not been any nationwide age-standardized incidence data reported for prostate cancer in Nigeria. We examined and integrated diverse trends in the age-specific incidence of prostate cancer into a comprehensive trend for Nigeria, and examined how best the existing data could generate a countr...

journal_title：Clinical epidemiology

authors： Ifere GO,Abebe F,Ananaba GA

更新日期：2012-01-01 00:00:00

abstract：Purpose:To establish the validity of intracerebral hemorrhage (ICH) diagnoses in the Danish Stroke Registry (DSR) and the Danish National Patient Registry (DNPR). Patients and Methods:Based on discharge summaries and brain imaging reports, we estimated the positive predictive value (PPV) of a first-ever diagnosis code...

journal_title：Clinical epidemiology

authors： Hald SM,Kring Sloth C,Agger M,Schelde-Olesen MT,Højholt M,Hasle M,Bogetofte H,Olesrud I,Binzer S,Madsen C,Krone W,García Rodríguez LA,Al-Shahi Salman R,Hallas J,Gaist D

更新日期：2020-12-01 00:00:00

abstract：Purpose:Synthetic oxytocin for labor augmentation during birth has been linked to negative neurodevelopment effects in children. We examined whether maternal labor augmentation was associated with lower cognitive ability in young adulthoods. Patients and methods:We identified 330,107 individuals (96.6% were men), with...

journal_title：Clinical epidemiology

authors： Stokholm L,Talge NM,Christensen GT,Juhl M,Mortensen LH,Strandberg-Larsen K

更新日期：2018-11-26 00:00:00

abstract：Background:Primary care databases represent a rich source of data for health care research; however, the quality of recording of secondary care events in these databases is uncertain. This study sought to investigate the completeness of recording of hospital admissions for bleeds in primary care records and explore the...

journal_title：Clinical epidemiology

authors： McDonald L,Sammon CJ,Samnaliev M,Ramagopalan S

更新日期：2018-09-04 00:00:00

abstract：:Sjögren's syndrome is a chronic systemic autoimmune disease characterized by lymphocytic infiltration of exocrine glands. It can present as an entity by itself, primary Sjögren's syndrome (pSS), or in addition to another autoimmune disease, secondary Sjögren's syndrome (sSS). pSS has a strong female propensity and is ...

journal_title：Clinical epidemiology

authors： Patel R,Shahane A

更新日期：2014-07-30 00:00:00

abstract：Purpose:To report completeness of registered surgeries in the Danish hip arthroscopy registry (DHAR) and proportion of patients completing patient-reported outcome measures (PROMs) prior to surgery and at 1-year follow-up. Patients and Methods:Completeness was determined as the number of surgeries registered in DHAR i...

journal_title：Clinical epidemiology

authors： Poulsen E,Lund B,Roos EM

更新日期：2020-08-04 00:00:00