Stefán Einarsson's research while affiliated with Petromodel and other places

... In addition, we included renal function (microalbuminuria and glomerular filtration rate) and body mass index (BMI) values. The algorithm yielded good results for identifying those patients who might develop STDR, [18][19][20] but not those who might develop the early stages of DR. ...

... Much evidence supporting extended intervals suggests that it is safe to screen low-risk people at longer intervals [6][7][8] and this has been introduced in some countries. However, the underpinning evidence for this change comes from observational studies in areas with low incidence rates 6,[9][10][11] and from modelling studies, [12][13][14] and is not conclusive. In England and Wales, extended intervals have not been adopted, largely because of safety concerns highlighted by a recent systematic review calling for a randomised controlled trial (RCT) and cost-effectiveness data, 8 and recent problems in cancer screening programmes. ...

... Editor, Screening for diabetic retinopathy (DR) has reduced the risk of blindness in diabetes (Liew et al., 2014), but annual DR screening is costly. While prolonged and individualized screening intervals can reduce the burden of screening (Aspelund et al., 2011), important barriers to effective implementation of biannual DR screening in patients without DR have been the underlying fear of rapid progression to PDR in persons with impaired glycaemic control (Kohner et al., 1976). As knowledge of most recent haemoglobin A1c (HbA1c) is rarely available for screening facilities outside of clinical studies and hospital settings, we aimed to evaluate the real-world, HbA1c-stratified risk of 24-month progression from no DR to proliferative DR (PDR) in the Danish national DR-screening program. ...