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Št. zadetkov: 7
Optimizirana penalizirana regresija - rešitev za problem ločenosti v logistični regresiji
HANA ŠINKOVEC, Rok Blagus, GEORG HEINZE
Magistrsko delo
Oznake: ločenost;monotona funkcija verjetja;neskončne ocene parametrov;(optimizirana) penalizirana logistična regresija;optimizacija;zmanjšanje srednje kvadratne napake;
Rezultatom, ki jih dobimo, ko želimo z modelom logistične regresije oceniti majhen vzorec, kjer so izidi redki, ne moremo kar tako zaupati. Pri tovrstni analizi se lahko celo zgodi, da ocene parametrov ne obstajajo. To je tako imenovana ločenost oz. monotona funkcija verjetja, saj situacija nastopi, ...
Leto: 2016 Vir: Fakulteta za elektrotehniko (UL FE)
Bring more data!—a good advice?
Hana Šinkovec, Angelika Geroldinger, Georg Heinze
Izvirni znanstveni članek
Oznake: maximum likelihood estimation;logistic regression;Firth’s correction;separation;penalized likelihood;bias;
The parameters of logistic regression models are usually obtained by the method of maximum likelihood (ML). However, in analyses of small data sets or data sets with unbalanced outcomes or exposures, ML parameter estimates may not exist. This situation has been termed ‘separation’ as the two outcome ...
Leto: 2019 Vir: Biotehniška fakulteta (UL BF)
Cross-sectoral comparisons of process quality indicators of health care across residential regions using restricted mean survival time
Hana Šinkovec, Walter E. Gall, Georg Heinze
Izvirni znanstveni članek
Oznake: health care provider comparisons;pseudo-observations;risk adjustment;restricted mean survival time;restricted mean time lost;
Background: Practice guidelines recommend patient management based on scientific evidence. Quality indicators gauge adherence to such recommendations and assess health care quality. They are usually defined as adverse event rates, which may not fully capture guideline adherence over time. Methods: F ...
Leto: 2024 Vir: Biotehniška fakulteta (UL BF)
To tune or not to tune, a case study of ridge logistic regression in small or sparse datasets
Hana Šinkovec, Georg Heinze, Rok Blagus, Angelika Geroldinger
Izvirni znanstveni članek
Oznake: logistic regression;Firth's correction;statistics;
Background: For finite samples with binary outcomes penalized logistic regression such as ridge logistic regression has the potential of achieving smaller mean squared errors (MSE) of coefficients and predictions than maximum likelihood estimation. There is evidence, however, that ridge logistic reg ...
Leto: 2021 Vir: Biotehniška fakulteta (UL BF)
Adherence to secondary prevention measures after acute myocardial infarction and its impact on patient outcome—a nationwide perspective
Andreas Hammer, Hana Šinkovec, Marko Todorović, Florian Katsch, Walter E. Gall, Georg Duftschmid, Georg Heinze, Alexander Niessner, Patrick Sulzgruber
Kratki znanstveni prispevek
Oznake: acute coronary syndrome;cardiac rehabilitation;high-intensity statins;dual antiplatelet therapy;adherence;acute myocardial infraction;
Objectives: Secondary prevention is crucial for reducing morbidity and mortality in patients following acute myocardial infraction (MI). However, adherence to cardiac rehabilitation (CR) and pharmacotherapy remains suboptimal despite strong guideline recommendations. This study investigated the adhe ...
Leto: 2024 Vir: Biotehniška fakulteta (UL BF)
Utilization of potentially inappropriate medication and risk of adverse drug events among older adults with chronic renal insufficiency
Safoura Sheikh Rezaei, Hana Šinkovec, Alexander Schöberl, Christoph Rinner, Georg Heinze, Michael Wolzt, Walter E. Gall
Izvirni znanstveni članek
Oznake: medications;chronic kidney disease;adverse drug events;pharmaco-epidemiology;older adults;
Background: The use of potentially inappropriate medication (PIM) in population of older adults may result in adverse drug events (ADE) already after short term exposure, especially when it is prescribed to patients with chronic kidney disease (CKD). In order to limit ADE in the treatment of older a ...
Leto: 2021 Vir: Biotehniška fakulteta (UL BF)
Impact of high-volume, intermediate-volume and low-volume bowel preparation on colonoscopy quality and patient satisfaction
Elisabeth Waldmann, Daniela Penz, Barbara Majcher, J. Zagata, Hana Šinkovec, Georg Heinze, Angelika Dokladanska, Aleksandra Szymanska, Michael Trauner, Monika Ferlitsch, Arnulf‏ ‎ Ferlitsch
Izvirni znanstveni članek
Oznake: adenoma detection rate;bowel preparation;patient satisfaction;quality assurance;creening colonoscopy;
Background: Although optimal bowel preparation is essential for high-quality screening colonoscopy, documentation of preparation quality, patient satisfaction and adherence is scarce. Aim: The aim of this article is to compare low-volume (LV, 300 ml sodium picosulfate), intermediate-volume (IV, 2 l ...
Leto: 2019 Vir: Biotehniška fakulteta (UL BF)
Št. zadetkov: 7
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