Validity of the recorded codes of gonadotropin-releasing hormone agonist treatment and orchiectomies in the Danish National Patient Registry.

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：BACKGROUND:The Danish National Registry of Patients (DNRP) is a potentially valuable resource for monitoring national trends in the use of chemotherapy and evaluating the benefits and harms of alternative treatments among colorectal cancer (CRC) patients in Denmark. However, the validity of chemotherapy reporting in th...

journal_title：Clinical epidemiology

authors： Lund JL,Frøslev T,Deleuran T,Erichsen R,Nilsson T,Pedersen AN,Høyer M

更新日期：2013-08-30 00:00:00

abstract：AIM OF DATABASE:The aim of the Danish Anaesthesia Database (DAD) is the nationwide collection of data on all patients undergoing anesthesia. Collected data are used for quality assurance, quality development, and serve as a basis for research projects. STUDY POPULATION:The DAD was founded in 2004 as a part of Danish C...

journal_title：Clinical epidemiology

authors： Antonsen K,Rosenstock CV,Lundstrøm LH

更新日期：2016-10-25 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：:Long-term storage of biological samples from patients has become increasingly important in studies of disease control and treatment. The first nationwide Danish diabetes project, ie, The Danish Center for Strategic Research in Type II Diabetes (DD2), aims to improve treatment and the long-term outcome of patients with...

journal_title：Clinical epidemiology

authors： Christensen H,Nielsen JS,Sørensen KM,Melbye M,Brandslund I

更新日期：2012-01-01 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:The presence of comorbid medical conditions can significantly affect a cancer patient's treatment options, quality of life, and survival. However, these important data are often lacking from population-based cancer registries. Leveraging routine linkage to hospital discharge data, a comorbidity score was cal...

journal_title：Clinical epidemiology

authors： Lichtensztajn DY,Giddings BM,Morris CR,Parikh-Patel A,Kizer KW

更新日期：2017-11-20 00:00:00

abstract：Background:Previous studies have shown a link between increased dietary intake of arachidonic acid (ARA) and colorectal neoplasms. It has been shown that erythrocyte phospholipid membrane concentrations of ARA are strongly determined by genetic variation. Fatty acid desaturase (FADS) controls the rate limiting step in ...

journal_title：Clinical epidemiology

authors： Isom CA,Shrubsole MJ,Cai Q,Smalley WE,Ness RM,Zheng W,Murff HJ

更新日期：2018-12-18 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:The combination of organized cervical cancer screening and childhood HPV vaccination programs has the potential to eliminate cervical cancer in the future. However, only women participating in both programs gain the full protection, and combined non-attenders remain at high risk of developing cervical cancer...

journal_title：Clinical epidemiology

authors： Badre-Esfahani S,Larsen MB,Seibæk L,Petersen LK,Blaakær J,Støvring H,Andersen B

更新日期：2019-11-08 00:00:00

abstract：Aim:To improve consistency between register studies in Sweden and ensure valid comparisons of possible changes in alcohol-related disorders and diseases (ARDDs) over time, we propose a definition of ARDDs. Based on this definition, we examined Sweden's incidence rates of ARDDs from 1970 to 2018 in non-primary healthcar...

journal_title：Clinical epidemiology

authors： Bergman D,Hagström H,Capusan AJ,Mårild K,Nyberg F,Sundquist K,Ludvigsson JF

更新日期：2020-12-31 00:00:00

abstract：Background:Cost-effective primary prevention of cardiovascular disease (CVD) relies on accuracy of risk assessment. Current risk scores require clinical and laboratory measures, are expensive and are often difficult to apply in the population setting. Objective:This study sought to estimate CVD risk from individuals' ...

journal_title：Clinical epidemiology

authors： Duval S,Van't Hof JR,Steffen LM,Luepker RV

更新日期：2020-01-14 00:00:00

abstract：Purpose:To develop a self-administered diagnostic screening questionnaire for lumbar spinal stenosis (LSS) consisting of items with high content validity and to investigate the diagnostic value of the questionnaire and the items. Patients and Methods:A self-reported diagnostic LSS screening questionnaire was developed...

journal_title：Clinical epidemiology

authors： Jensen RK,Lauridsen HH,Andresen ADK,Mieritz RM,Schiøttz-Christensen B,Vach W

更新日期：2020-08-19 00:00:00

abstract：Objective:Reports on the epidemiology of vestibular schwannoma (VS) indicate an increase in diagnosed cases, often based on selected materials over a limited period of time. This report presents prospective 40-year epidemiological data from an unselected national cohort of all patients diagnosed with a VS in Denmark si...

journal_title：Clinical epidemiology

authors： Reznitsky M,Petersen MMBS,West N,Stangerup SE,Cayé-Thomasen P

更新日期：2019-11-08 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：OBJECTIVE:In medicine, many more prediction models have been developed than are implemented or used in clinical practice. These models cannot be recommended for clinical use before external validity is established. Though various models to predict mortality in dialysis patients have been published, very few have been v...

journal_title：Clinical epidemiology

authors： Ramspek CL,Voskamp PW,van Ittersum FJ,Krediet RT,Dekker FW,van Diepen M

更新日期：2017-09-05 00:00:00

abstract：PURPOSE:Rotavirus (RV) is a leading cause of severe gastroenteritis (GE) in children across the world. As there is a lack of epidemiological data for RV gastroenteritis (RVGE) in Saudi Arabia, this hospital-based study was designed to estimate the disease burden of RVGE and assess the prevalent RV types in Saudi childr...

journal_title：Clinical epidemiology

authors： Khalil M,Azhar E,Kao M,Al-Kaiedi N,Alhani H,Al Olayan I,Pawinski R,Gopala K,Kandeil W,Anis S,Van Doorn LJ,DeAntonio R

更新日期：2015-02-11 00:00:00

abstract：AIM OF DATABASE:The aim of the Danish Heart Failure Registry (DHFR) is to monitor and improve the care of patients with incident heart failure (HF) in Denmark. STUDY POPULATION:The DHFR includes inpatients and outpatients (≥18 years) with incident HF. Reporting to the DHFR is mandatory for the Danish hospital departme...

journal_title：Clinical epidemiology

authors： Schjødt I,Nakano A,Egstrup K,Cerqueira C

更新日期：2016-10-25 00:00:00

abstract：BACKGROUND:Long-term mortality and causes of death in patients with pulmonary tuberculosis (PTB) and extrapulmonary tuberculosis (EPTB) are poorly documented. In this study, long-term mortality and causes of death in PTB and EPTB patients were compared with the background population and it was investigated whether mort...

journal_title：Clinical epidemiology

authors： Christensen AS,Roed C,Andersen PH,Andersen AB,Obel N

更新日期：2014-11-13 00:00:00

abstract：AIM OF DATABASE:The Danish Nonmelanoma Skin Cancer Dermatology Database was established in 2008. The aim of this database was to collect data on nonmelanoma skin cancer (NMSC) treatment and improve its treatment in Denmark. NMSC is the most common malignancy in the western countries and represents a significant challen...

journal_title：Clinical epidemiology

authors： Lamberg AL,Sølvsten H,Lei U,Vinding GR,Stender IM,Jemec GB,Vestergaard T,Thormann H,Hædersdal M,Dam TN,Olesen AB

更新日期：2016-10-25 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:To validate the use of International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) codes to identify patients with chronic hepatitis B virus (HBV) and hepatitis C virus (HCV) infection in the Taiwan National Health Insurance (NHI) Outpatient Claims Dataset. Methods:We conducted ...

journal_title：Clinical epidemiology

authors： Sheu MJ,Liang FW,Li ST,Li CY,Lu TH

更新日期：2020-02-20 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: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：OBJECTIVE:To validate a clinical database for nonmelanoma skin cancer (NMSC) with the aim of monitoring and predicting the prognosis of NMSC treated by dermatologists in clinics in the central and north Denmark regions. METHODS:We assessed the completeness of registration of patients and follow-up visits, and positive...

journal_title：Clinical epidemiology

authors： Lamberg AL,Cronin-Fenton D,Olesen AB

更新日期：2010-08-09 00:00:00

abstract：Purpose:Comorbidity indices are often used to measure comorbidities in register-based research. We aimed to adapt the Charlson comorbidity index (CCI) to a Swedish setting. Methods:Four versions of the CCI were compared and evaluated by disease-specific experts. Results:We created a cohesive coding system for CCI to ...

journal_title：Clinical epidemiology

authors： Ludvigsson JF,Appelros P,Askling J,Byberg L,Carrero JJ,Ekström AM,Ekström M,Smedby KE,Hagström H,James S,Järvholm B,Michaelsson K,Pedersen NL,Sundelin H,Sundquist K,Sundström J

更新日期：2021-01-12 00:00:00

abstract：BACKGROUND:Large-scale clinical registries are increasingly recognized as important resources for quality assurance and research to inform clinical decision-making and health policy. We established a clinical registry (SpineData) in a conservative care setting where more than 10,000 new cases of spinal pain are assesse...

journal_title：Clinical epidemiology

authors： Kent P,Kongsted A,Jensen TS,Albert HB,Schiøttz-Christensen B,Manniche C

更新日期：2015-08-13 00:00:00

abstract：OBJECTIVE:We examined the association between lifestyle factors and menstrual cycle characteristics among nulliparous Danish women aged 18-40 years who were participating in an Internet-based prospective cohort study of pregnancy planners. METHODS:We used cross-sectional data collected at baseline to assess the associ...

journal_title：Clinical epidemiology

authors： Hahn KA,Wise LA,Riis AH,Mikkelsen EM,Rothman KJ,Banholzer K,Hatch EE

更新日期：2013-08-19 00:00:00

abstract：Purpose:Sharing of detailed individual-level data continues to pose challenges in multi-center studies. This issue can be addressed in part by using analytic methods that require only summary-level information to perform the desired multivariable-adjusted analysis. We examined the feasibility and empirical validity of ...

journal_title：Clinical epidemiology

authors： Toh S,Wellman R,Coley RY,Horgan C,Sturtevant J,Moyneur E,Janning C,Pardee R,Coleman KJ,Arterburn D,McTigue K,Anau J,Cook AJ

更新日期：2018-11-27 00:00:00

abstract：BACKGROUND:A number of studies have shown poorer survival among cancer patients with comorbidity. Several mechanisms may underlie this finding. In this review we summarize the current literature on the association between patient comorbidity and cancer prognosis. Prognostic factors examined include tumor biology, diagn...

journal_title：Clinical epidemiology

authors： Søgaard M,Thomsen RW,Bossen KS,Sørensen HT,Nørgaard M

更新日期：2013-11-01 00:00:00