Blar i St. Olavs hospital på forfatter "Åsberg, Arne"
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Calculating the Coefficient of Variation from Duplicate Measurements: A New Method
Åsberg, Arne; Bolann, Bjørn (Peer reviewed; Journal article, 2023) -
Calprotectin and CRP as biomarkers of cardiovascular disease risk in patients with chronic kidney disease: a follow-up study at 5 and 10 years
Løfblad, Lena; Hov, Gunhild Garmo; Åsberg, Arne; Videm, Vibeke (Peer reviewed; Journal article, 2023)Chronic kidney disease (CKD) and low-grade inflammation are associated with increased risk of cardiovascular disease (CVD). Calprotectin, a protein mainly secreted by activated neutrophils during inflammatory conditions, ... -
Comparison of procalcitonin, C-reactive protein, white blood cell count and clinical status in diagnosing pneumonia in patients hospitalized with acute exacerbations of COPD: A prospective observational study
Titova, Elena; Christensen, Andreas; Henriksen, Anne Hildur; Steinshamn, Sigurd Loe; Åsberg, Arne (Journal article; Peer reviewed, 2018)Lower respiratory tract infection is the most common cause of acute exacerbations of chronic obstructive pulmonary disease (AECOPD). The aim of the present study was to compare the accuracy of procalcitonin (PCT), C-reactive ... -
Diagnosing empty iron stores in women: unbound iron binding capacity (UIBC) versus soluble transferrin receptor (sTFR)
Åsberg, Arne; Thorstensen, Ketil; Hov, Gunhild Garmo; Åsberg, Ann Elisabeth (Peer reviewed; Journal article, 2021)Unbound iron binding capacity (UIBC) is more accurate than total iron binding capacity (TIBC) and percent transferrin saturation in diagnosing empty iron stores. It is unknown whether UIBC is more or less accurate than ... -
The diagnostic accuracy of quality control rules
Åsberg, Arne; Bolann, Bjørn (Peer reviewed; Journal article, 2024)Internal quality control in clinical chemistry laboratories are based on analyzing samples of stable control materials among the patient samples. The control results are interpreted by using quality control rules that ... -
HbA1c as screening for gestational diabetes mellitus in women with polycystic ovary syndrome
Odsæter, Ingrid Hov; Åsberg, Arne; Vanky, Eszter; Carlsen, Sven Magnus (Journal article; Peer reviewed, 2015)Background Gestational diabetes mellitus (GDM) is associated with adverse pregnancy outcomes such as preeclampsia and macrosomia. Women with polycystic ovary syndrome (PCOS) are at increased risk of developing GDM. ... -
Hemoglobin A1c as screening for gestational diabetes mellitus in Nordic Caucasian women
Odsæter, Ingrid Hov; Åsberg, Arne; Vanky, Eszter; Mørkved, Siv; Stafne, Signe Nilssen; Salvesen, Kjell Å; Carlsen, Sven Magnus (Peer reviewed; Journal article, 2016)Background Gestational diabetes mellitus (GDM) increases the risk for preeclampsia and macrosomia. GDM is conventionally diagnosed by an oral glucose tolerance test (OGTT). Hemoglobin A1c (HbA1c) is a marker for the ... -
Impact of different preanalytical conditions on results of lupus anticoagulant tests
Kristoffersen, Ann-Helen; Jansrud, Ida; Vannes, Solveig; Åsberg, Arne; Aakre, Kristin Moberg (Peer reviewed; Journal article, 2019)Introduction: The currently recommended preanalytical conditions for lupus anticoagulant (LA) analysis require analyzing samples in fresh or freshly frozen platelet‐poor plasma. The aim of this study was to evaluate whether ... -
Inflammatory markers and risk of cardiovascular mortality in relation to diabetes status in the HUNT study
Løfblad, Lena; Hov, Gunhild Garmo; Åsberg, Arne; Videm, Vibeke (Peer reviewed; Journal article, 2021)Inflammatory markers have been associated with increased risk of cardiovascular mortality in general populations. We assessed whether these associations differ by diabetes status. From a population-based cohort study ... -
New reference intervals for cortisol, cortisol binding globulin and free cortisol index in women using ethinyl estradiol
Panton, Kristine Kollerøs; Mikkelsen, Gustav; Irgens, Wenche Elna Øiestad; Hovde, Ann Kristin; Killingmo, Marte Wien; Øien, Monja Airin; Thorsby, Per Medbøe; Åsberg, Arne (Peer reviewed; Journal article, 2019)Healthy women using contraceptives containing a low dose of an estrogen may have a higher serum concentration of cortisol (s-cortisol) and cortisol binding globulin (s-CBG) than the commonly used upper reference limits. ... -
Should total calcium be adjusted for albumin? A retrospective observational study of laboratory data from central Norway
Lian, Ingrid Alsos; Åsberg, Arne (Peer reviewed; Journal article, 2018)Objectives: Albumin-adjusted total calcium is often used as a surrogate marker for free calcium to evaluate hypocalcaemia or hypercalcaemia. Many adjustment formulas based on simple linear regression models have been ... -
Testing the limits: the diagnostic accuracy of reference change values
Åsberg, Arne; Lian, Ingrid Alsos; Odsæter, Ingrid Hov; Mikkelsen, Gustav (Peer reviewed; Journal article, 2021)Reference change values (RCVs) are used by the physician to judge whether a change in analyte concentration from one sample to the next may represent a clinically significant change. Published RCVs are usually given as ... -
Using blood calprotectin as a measure of blood neutrophils
Åsberg, Arne; Løfblad, Lena; Felic, Amela; Aune, Marthe Wedø; Hov, Gunhild Garmo; Fagerli, Unn-Merete (Peer reviewed; Journal article, 2021)Presently, bed-side or at home quantification of neutrophils in blood (b-neutrophils) is not practical, because cytometric methods are too expensive and technically demanding. We have explored whether calprotectin concentration ...