Torunn Varmdal
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View article: Trends in reperfusion treatments, functional outcomes and mortality for first-ever ischaemic stroke in Norway from 2014 to 2021: The Norwegian Stroke Registry
Trends in reperfusion treatments, functional outcomes and mortality for first-ever ischaemic stroke in Norway from 2014 to 2021: The Norwegian Stroke Registry Open
Introduction: Acute ischaemic stroke (AIS) treatment has undergone major changes in the last decades with regards to reperfusion treatment with intravenous thrombolysis (IVT) and mechanical thrombectomy (MT). We analysed temporal trends in…
View article: Transport time as a potential limiting factor for thrombolytic treatment of stroke in Norway
Transport time as a potential limiting factor for thrombolytic treatment of stroke in Norway Open
Background Rapid diagnosis and treatment of stroke is important for good outcome. In some cases, patients with ischemic stroke arrive at hospital too late for reperfusion therapy. This may be the case especially in rural areas where time s…
View article: Thrombolytic Treatment in Wake‐Up Stroke: A Propensity Score–Matched Analysis of Treatment Effectiveness in the Norwegian Stroke Registry
Thrombolytic Treatment in Wake‐Up Stroke: A Propensity Score–Matched Analysis of Treatment Effectiveness in the Norwegian Stroke Registry Open
Background Previous clinical trials found improved outcome of thrombolytic treatment in patients with ischemic wake‐up stroke (WUS) selected by advanced imaging techniques. The authors assessed the effectiveness of thrombolytic treatment i…
View article: Coverage uncertainty range: A new method for calculating uncertainty around summary statistics in healthcare quality indicators
Coverage uncertainty range: A new method for calculating uncertainty around summary statistics in healthcare quality indicators Open
Data from clinical health registries, such as medical quality registries, are often used as basis for healthcarequality indicators (QI). To aid the interpretation of quality indicators and support decisions, it is importantto quantify the …
View article: Risk of myocardial infarction after invasive outpatient procedures
Risk of myocardial infarction after invasive outpatient procedures Open
Objective To assess the short-term risk of acute myocardial infarction (AMI) associated with procedures performed at outpatient specialised hospital clinics. Methods In this case-crossover, population-based study, we identified first-time …
View article: Wake-up stroke and unknown-onset stroke; occurrence and characteristics from the nationwide Norwegian Stroke Register
Wake-up stroke and unknown-onset stroke; occurrence and characteristics from the nationwide Norwegian Stroke Register Open
Introduction: Population-based knowledge of the characteristics of wake-up stroke and unknown-onset stroke is limited. We compared occurrence and characteristics of ischaemic and haemorrhagic wake-up stroke, unknown-onset stroke and known-…
View article: Validating Acute Myocardial Infarction Diagnoses in National Health Registers for Use as Endpoint in Research: The Tromsø Study
Validating Acute Myocardial Infarction Diagnoses in National Health Registers for Use as Endpoint in Research: The Tromsø Study Open
MI diagnoses in both the Norwegian Myocardial Infarction Register and the Norwegian Patient Register were highly correct and complete, and each of the registers could be considered as endpoint sources for the Tromsø Study. A combination of…
View article: Validating Acute Myocardial Infarction Diagnoses in National Health Registers for Use as Endpoint in Research: The Tromsø Study
Validating Acute Myocardial Infarction Diagnoses in National Health Registers for Use as Endpoint in Research: The Tromsø Study Open
Torunn Varmdal,1,2 Ellisiv B Mathiesen,1,3 Tom Wilsgaard,1 Inger Njølstad,1 Audhild Nyrnes,1 Sameline Grimsgaard,1 Kaare Harald Bønaa,2,4 Jan Mannsverk,1 Maja-Lisa Løchen1,5 1Department of Community Medicine, UiT The Arctic University of N…
View article: Data from national health registers as endpoints for the Tromsø Study: Correctness and completeness of stroke diagnoses
Data from national health registers as endpoints for the Tromsø Study: Correctness and completeness of stroke diagnoses Open
Aim: To assess whether stroke diagnoses in national health registers are sufficiently correct and complete to replace manual collection of endpoint data for the Tromsø Study, a population-based epidemiological study. Method: Using the Trom…
View article: Inter-rater reliability of a national acute stroke register
Inter-rater reliability of a national acute stroke register Open
A majority of the variables in The Norwegian Stroke Register have substantial to excellent reliability. The problem areas seem to be the lack of completeness in the time variable indicating stroke onset and poor reliability in some variabl…
View article: MOESM1 of Inter-rater reliability of a national acute stroke register
MOESM1 of Inter-rater reliability of a national acute stroke register Open
Additional file 1. Contingency tables of all variables.