Abstract:
:Logistic regression is used to obtain odds ratio in the presence of more than one explanatory variable. The procedure is quite similar to multiple linear regression, with the exception that the response variable is binomial. The result is the impact of each variable on the odds ratio of the observed event of interest. The main advantage is to avoid confounding effects by analyzing the association of all variables together. In this article, we explain the logistic regression procedure using examples to make it as simple as possible. After definition of the technique, the basic interpretation of the results is highlighted and then some special issues are discussed.
journal_name
Biochem Med (Zagreb)journal_title
Biochemia medicaauthors
Sperandei Sdoi
10.11613/BM.2014.003subject
Has Abstractpub_date
2014-02-15 00:00:00pages
12-8issue
1eissn
1330-0962issn
1846-7482pii
biochem-24-1-12-4journal_volume
24pub_type
杂志文章相关文献
Biochemia Medica文献大全abstract::Accumulating evidence shows that chronic inflammation is associated to increased risk of cancer. An inflammatory component is present also in the microenvironment of tumours epidemiologically unrelated to inflammation. Extensive investigations over the past decade have uncovered many of the important mechanistic pathw...
journal_title:Biochemia medica
pub_type: 杂志文章,评审
doi:10.11613/bm.2011.036
更新日期:2011-01-01 00:00:00
abstract:INTRODUCTION:ISO 15189 was a new standard published in 2003 for accrediting medical laboratories. We believe that some requirements of the ISO 15189 standard are especially difficult to meet for majority of laboratories. The aim of this article was to present the frequency of nonconformities to requirements of the ISO ...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/bm.2012.027
更新日期:2012-01-01 00:00:00
abstract:INTRODUCTION:The phlebotomists' procedures are a still source of laboratory variability. The aim of this study was to verify the efficacy of minor modification in procedure for collection of diagnostic blood specimens by venipuncture from CLSI H03-A6 document is able to reduce the tourniquet application time. MATERIAL...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/bm.2013.037
更新日期:2013-01-01 00:00:00
abstract:INTRODUCTION:Duplicate measurements can be used to describe the performance and analytical robustness of assays and to identify outliers. We performed about 235,000 duplicate measurements of nine routinely measured quantities and evaluated the observed differences between the replicates to develop new markers for analy...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/BM.2017.021
更新日期:2017-02-15 00:00:00
abstract::In this paper we would like to briefly introduce readers to the situation in the field of laboratory medicine in Bosnia and Herzegovina, with a focus on training in the field of medical biochemistry. As in some of neighboring countries, term Medical biochemist is the usual name for the Clinical biochemist or Clinical ...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:
更新日期:2011-01-01 00:00:00
abstract:INTRODUCTION:The usefulness and cost-effectiveness of routine laboratory preoperative tests (POTs) have been challenged recently. In fact, the American Society of Anesthesiologists (ASA) Task Force has stated that test results obtained from the medical record within 6 months of surgery generally are mostly acceptable. ...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/BM.2017.030902
更新日期:2017-10-15 00:00:00
abstract:Introduction:Measurement of parathyroid hormone (PTH) is essential in the investigation and management of calcium metabolism disorders. To assess the significance of any assay result when clinical decision making biological variation (BV) of the measurand must be taken into consideration. The aim of the present study i...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/BM.2019.030702
更新日期:2019-10-15 00:00:00
abstract:Introduction:Reference intervals (RIs) for complement assays in EDTA plasma samples have not previously been published. The objectives of the present study were to validate and/or determine RIs for classical pathway (CP50) activity and C3c, C4 and C1 inhibitor protein (C1INH) assays and to assess the need for age-speci...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/BM.2019.030707
更新日期:2019-10-15 00:00:00
abstract:INTRODUCTION:Winter swimming represents an intensive short-term exposure to cold, and thus it is considered a strong physical stress. Cold-based treatments, i.e. immersions in cold water, are spreading in sport medicine for improving recovery following muscle traumas, although a universal acceptance of that method is n...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/bm.2011.014
更新日期:2011-01-01 00:00:00
abstract:INTRODUCTION:We examined the cost-effectiveness of the three different D-dimer measurements in the screening of DVT in models with and without calculation of pre-test probability (PTP) score. Moreover, we calculated the minimal cost in DVT detection. MATERIAL AND METHODS:In the group of 192 patients with clinically su...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/bm.2013.012
更新日期:2013-01-01 00:00:00
abstract::In Croatian medical laboratories (ML), external quality assessment (EQA) has a long tradition of almost half of a century. At national level, EQA is provided by Croatian Centre for Quality Assessment in Laboratory Medicine (CROQALM) which is a part of Croatian Society of Medical Biochemistry and Laboratory Medicine. T...
journal_title:Biochemia medica
pub_type: 杂志文章,评审
doi:10.11613/BM.2017.011
更新日期:2017-02-15 00:00:00
abstract:INTRODUCTION:In vitro human diagnostic (IVD) company recalls are a common practice aimed to either minimize a potential error or eliminate an existing failure. In this case report, we aim to provide a critical analysis of a recent IVD recall and to provide a practical framework about what to do when an IVD company reca...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/BM.2015.028
更新日期:2015-06-05 00:00:00
abstract:Introduction:Autovalidation (AV) is an algorithm based on predefined rules designed, among others, to automate and standardize the postanalytical phase of laboratory work. The aim of this study was to examine the overall opinion of Croatian medical biochemistry laboratories regarding various aspects of AV. Material an...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/BM.2020.020702
更新日期:2020-06-15 00:00:00
abstract:Introduction:The measurement of β-hydroxybutyrate (βOHB) concentrations is a corner stone of the diagnosis of diabetic ketoacidosis and other ketonic states. The aim of this study was to perform a validation of a peripheral blood βOHB assay (Randox) on a Roche cobas c502 analyser and to establish a βOHB reference range...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/BM.2020.010707
更新日期:2020-02-15 00:00:00
abstract:Introduction:This study aimed to investigate the analytical bias in haematological parameters induced by storage at 33 ºC. Materials and methods:Blood from the diversion pouch of 20 blood donors were collected in K 2 EDTA vials and stored at 33 ºC. Readings from each vial ...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/BM.2018.020901
更新日期:2018-06-15 00:00:00
abstract:INTRODUCTION:Early identification and management of chronic kidney disease (CKD) is highly cost-effective and can reduce the risk of kidney failure progression and cardiovascular disease. In 2014, the Joint Croatian Working Group (JCWG) for laboratory diagnostic of CKD on the behalf of Croatian society of medical bioch...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/BM.2015.009
更新日期:2015-01-01 00:00:00
abstract::The kappa statistic is frequently used to test interrater reliability. The importance of rater reliability lies in the fact that it represents the extent to which the data collected in the study are correct representations of the variables measured. Measurement of the extent to which data collectors (raters) assign th...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:
更新日期:2012-01-01 00:00:00
abstract:Introduction:Severe hyperkalaemia is a serious medical condition requiring immediate medical attention. Before medical treatment is started, pseudohyperkalaemia has to be ruled out. Case description:A 10-month old infant presented to the emergency department with fever and coughing since 1 week. Routine venous blood t...
journal_title:Biochemia medica
pub_type:
doi:10.11613/BM.2020.021004
更新日期:2020-06-15 00:00:00
abstract::Extravascular body fluids (EBF) analysis can provide useful information in the differential diagnosis of conditions that caused their accumulation. Their unique nature and particular requirements accompanying EBF analysis need to be recognized in order to minimize possible negative implications on patient safety. This...
journal_title:Biochemia medica
pub_type: 杂志文章,评审
doi:10.11613/BM.2020.010502
更新日期:2020-02-15 00:00:00
abstract::This systematic review presents the latest trends in salivary research and its applications in health and disease. Among the large number of analytes present in saliva, many are affected by diverse physiological and pathological conditions. Further, the non-invasive, easy and cost-effective collection methods prompt a...
journal_title:Biochemia medica
pub_type: 杂志文章,评审
doi:10.11613/BM.2015.018
更新日期:2015-06-05 00:00:00
abstract::An increasing prevalence of gestational diabetes has become a very challenging task in prenatal care worldwide. International Association of Diabetes and Pregnancy Study Groups (IADPSG) has recently issued recommendations on the diagnosis and classification of hyperglycaemia in pregnancy. These recommendations, the fi...
journal_title:Biochemia medica
pub_type: 社论
doi:10.11613/bm.2013.002
更新日期:2013-01-01 00:00:00
abstract::Reliable procedures are needed to quantify the performance of instruments and methods in order to increase the quality in clinical laboratories. The Sigma metrics serves that purpose, and in the present study, the current methods for the calculation of the Sigma metrics are critically evaluated. Although the conventio...
journal_title:Biochemia medica
pub_type: 杂志文章,评审
doi:10.11613/BM.2018.020503
更新日期:2018-06-15 00:00:00
abstract:INTRODUCTION:The aim of this work is twofold. Firstly, to study the temporal evolution in the number of laboratory requests from primary care without clinical indication, and to analyse the number of such requests before and after the implementation of an automated requesting procedure. Secondly, to investigate what ar...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/BM.2016.045
更新日期:2016-10-15 00:00:00
abstract:INTRODUCTION:The opening of research data is emerging thanks to the increasing possibilities of digital technology. The opening of clinical trial (CT) data is a part of this process, expected to have positive scientific, ethical, health, and economic impacts thus contributing to research integrity. The January 2016 pro...
journal_title:Biochemia medica
pub_type: 杂志文章,评审
doi:10.11613/BM.2016.035
更新日期:2016-10-15 00:00:00
abstract:Introduction:Macroprolactinaemia is a well-known analytical problem in diagnostics of hyperprolactinaemia usually detected with polyethylene glycol (PEG) precipitation method. Since there is no harmonization in macroprolactin detection and reporting results, this study proposes and evaluates the usefulness of in-house ...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/BM.2019.020706
更新日期:2019-06-15 00:00:00
abstract:Introduction:In recent years, Six Sigma metrics has became the hotspot in all trades and professions, which contributes a general procedure to explain the performance on sigma scale. Nowadays, many large companies, such as General Healthcare, Siemens, etc., have applied Six Sigma to clinical medicine and achieved satis...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/BM.2018.020904
更新日期:2018-06-15 00:00:00
abstract::With considering serum concentration of the uric acid in humans we are observing hyperuricemia and possible gout development. Many epidemiological studies have shown the relationship between the uric acid and different disorders such are obesity, metabolic syndrome, hypertension and coronary artery disease. Clinicians...
journal_title:Biochemia medica
pub_type: 杂志文章,评审
doi:10.11613/bm.2012.007
更新日期:2012-01-01 00:00:00
abstract::The Chi-square statistic is a non-parametric (distribution free) tool designed to analyze group differences when the dependent variable is measured at a nominal level. Like all non-parametric statistics, the Chi-square is robust with respect to the distribution of the data. Specifically, it does not require equality o...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/bm.2013.018
更新日期:2013-01-01 00:00:00
abstract:Introduction:The evaluation of patients with suspected appendicitis strives to identify all patients with presenting symptoms while minimizing negative appendectomy rate. The aim of the study was to identify the optimal combination of clinical and laboratory parameters that should facilitate the emergency department su...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/BM.2018.030712
更新日期:2018-10-15 00:00:00
abstract:INTRODUCTION:Glycolysis affects glucose determination in vitro. The placement of sample tubes in ice-water slurry with plasma separation within 30 minutes is recommended, or alternatively the use of a glycolysis inhibitor. The aim of our two-steps study was to evaluate which Terumo tube is best for glucose determinatio...
journal_title:Biochemia medica
pub_type: 杂志文章
doi:10.11613/BM.2016.006
更新日期:2016-01-01 00:00:00