keyword
MENU ▼
Read by QxMD icon Read
search

Calibration logistic regression

keyword
https://www.readbyqxmd.com/read/29159934/ovarian-cancer-early-detection-by-circulating-ca125-in-the-context-of-anti-ca125-autoantibody-levels-results-from-the-epic-cohort
#1
Renée T Fortner, Helena Schock, Charlotte Le Cornet, Anika Hüsing, Allison F Vitonis, Theron S Johnson, Raina N Fichorova, Titilayo Fashemi, Hidemi S Yamamoto, Anne Tjønneland, Louise Hansen, Kim Overvad, Marie-Christine Boutron-Ruault, Marina Kvaskoff, Gianluca Severi, Heiner Boeing, Antonia Trichopoulou, Eleni-Maria Papatesta, Carlo La Vecchia, Domenico Palli, Sabina Sieri, Rosario Tumino, Carlotta Sacerdote, Amalia Mattiello, N Charlotte Onland-Moret, Petra H Peeters, H B As Bueno-de-Mesquita, Elisabete Weiderpass, J Ramón Quirós, Eric J Duell, Maria-Jose Sánchez, Carmen Navarro, Eva Ardanaz, Nerea Larrañaga, Björn Nodin, Karin Jirström, Annika Idahl, Eva Lundin, Kay-Tee Khaw, Ruth C Travis, Marc Gunter, Mattias Johansson, Laure Dossus, Melissa A Merritt, Elio Riboli, Kathryn L Terry, Daniel W Cramer, Rudolf Kaaks
CA125 is the best ovarian cancer early detection marker to date; however, sensitivity is limited and complementary markers are required to improve discrimination between ovarian cancer cases and non-cases. Anti-CA125 autoantibodies are observed in circulation. Our objective was to evaluate whether these antibodies (1) can serve as early detection markers, providing evidence of an immune response to a developing tumor, and (2) modify the discriminatory capacity of CA125 by either masking CA125 levels (resulting in lower discrimination) or acting synergistically to improve discrimination between cases and non-cases...
November 21, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29159844/incidence-and-predictors-of-30-day-postoperative-readmission-in-children
#2
Daniel Vo, David Zurakowski, David Faraoni
BACKGROUND: Hospital readmissions are being used as a quality metric for hospital reimbursement without a clear understanding of the factors that contribute to readmission. OBJECTIVE: The objective of this study was to report the incidence of 30-day postsurgical readmission in children, identify the predictors for readmission, and create an algorithm to identify high-risk children. METHODS: Data from the 2012-2014 Pediatric database of the American College of Surgeons National Surgical Quality Improvement Program were analyzed using univariable and multivariable logistical regression analysis...
November 20, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/29153663/prognostic-model-for-chronic-hypertension-in-women-with-a-history-of-hypertensive-pregnancy-disorders-at-term
#3
V S Visser, W Hermes, J Twisk, A Franx, M G van Pampus, C Koopmans, B W J Mol, C J M de Groot
INTRODUCTION: The association between hypertensive pregnancy disorders and cardiovascular disease later in life is well described. In this study we aim to develop a prognostic model from patients characteristics known before, early in, during and after pregnancy to identify women at increased risk of cardiovascular disease e.g. chronic hypertension years after pregnancy complicated by hypertension at term. METHODS: We included women with a history of singleton pregnancy complicated by hypertension at term...
October 2017: Pregnancy Hypertension
https://www.readbyqxmd.com/read/29151848/developing-and-validating-of-ramathibodi-appendicitis-score-rama-as-for-diagnosis-of-appendicitis-in-suspected-appendicitis-patients
#4
Chumpon Wilasrusmee, Boonying Siribumrungwong, Samart Phuwapraisirisan, Napaphat Poprom, Patarawan Woratanarat, Panuwat Lertsithichai, John Attia, Ammarin Thakkinstian
Background: Diagnosis of appendicitis is still clinically challenging where resources are limited. The purpose of this study was to develop and externally validate Ramathibodi Appendicitis Score (RAMA-AS) in aiding diagnosis of appendicitis. Methods: A two-phase cross-sectional study (i.e., derivation and validation) was conducted at Ramathibodi Hospital (for derivation) and at Thammasat University Hospital and Chaiyaphum Hospital (for validation). Patients with abdominal pain and suspected of having appendicitis were enrolled...
2017: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/29125989/prediction-of-mortality-risk-in-victims-of-violent-crimes
#5
Rolf Gedeborg, Bodil Svennblad, Liisa Byberg, Karl Michaëlsson, Ingemar Thiblin
BACKGROUND: To predict mortality risk in victims of violent crimes based on individual injury diagnoses and other information available in health care registries. METHODS: Data from the Swedish hospital discharge registry and the cause of death registry were combined to identify 15,000 hospitalisations or prehospital deaths related to violent crimes. The ability of patient characteristics, injury type and severity, and cause of injury to predict death was modelled using conventional, Lasso, or Bayesian logistic regression in a development dataset and evaluated in a validation dataset...
October 20, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29122806/diagnostic-utility-of-appetite-loss-in-addition-to-existing-prediction-models-for-community-acquired-pneumonia-in-the-elderly-a-prospective-diagnostic-study-in-acute-care-hospitals-in-japan
#6
Toshihiko Takada, Yosuke Yamamoto, Kazuhiko Terada, Mitsuyasu Ohta, Wakako Mikami, Hajime Yokota, Michio Hayashi, Jun Miyashita, Teruhisa Azuma, Shingo Fukuma, Shunichi Fukuhara
OBJECTIVE: Diagnosis of community-acquired pneumonia (CAP) in the elderly is often delayed because of atypical presentation and non-specific symptoms, such as appetite loss, falls and disturbance in consciousness. The aim of this study was to investigate the external validity of existing prediction models and the added value of the non-specific symptoms for the diagnosis of CAP in elderly patients. DESIGN: Prospective cohort study. SETTING: General medicine departments of three teaching hospitals in Japan...
November 8, 2017: BMJ Open
https://www.readbyqxmd.com/read/29121211/external-validation-and-update-of-the-ricp-a-multivariate-model-to-predict-chronic-postoperative-pain
#7
Tim Mathes, Carolina Pape-Köhler, Lena Moerders, Eberhard Lux, Edmund A M Neugebauer
Objective: The development of chronic postsurgical pain (CPSP) is influenced by several factors. The risk index for chronic pain (RICP) was developed to identify patients at high risk for CPSP. The aim of this study was the external validation and update of the RICP. Design: Prospective cohort study. Setting: Two German hospitals. Subjects: Participants who underwent orthopedic surgery, general surgery, visceral surgery, and neurosurgery...
November 7, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29118992/identifying-risk-for-type-2-diabetes-in-different-age-cohorts-does-one-size-fit-all
#8
Maria L Alva, Thomas J Hoerger, Ping Zhang, Edward W Gregg
Objective: To estimate age-specific risk equations for type 2 diabetes onset in young, middle-aged, and older US adults, and to compare the performance of simple equations based on readily available demographic information alone, against enhanced equations that require both demographic and clinical information (fasting plasma glucose, high-density lipoprotein, and triglyceride levels). Research design and methods: We estimated the probability of developing diabetes by age group using data from the Coronary Artery Risk Development in Young Adults (for ages 18-40 years), Atherosclerosis Risk in Communities (for ages 45-64 years), and the Cardiovascular Health Study (for ages 65 years and older)...
2017: BMJ Open Diabetes Research & Care
https://www.readbyqxmd.com/read/29118946/association-of-birth-weight-with-abdominal-obesity-and-weight-disorders-in-children-and-adolescents-the-weight-disorder-survey-of-the-caspian-iv-study
#9
Hossein Ansari, Mostafa Qorbani, Fatemeh Rezaei, Shirin Djalalinia, Mojgan Asadi, Sareh Miranzadeh, Mohammad Esmaeil Motlagh, Sahel Bayat, Saeid Safiri, Omid Safari, Morteza Shamsizadeh, Roya Kelishadi
Introduction: This study aims to evaluate the association of birth weight (BW) with weight disorders in a national sample of Iranian pediatric population. Methods: This nationwide survey was conducted among 25000 student's aged 6-18 year-old students, who were selected using multistage cluster random sampling from 30 provinces of Iran in 2011-2012. Anthropometric measures were measured under standard protocols by using calibrated instruments. Abdominal obesity was defined based on waist circumference (WC) ≥90th percentile value for age and sex...
2017: Journal of Cardiovascular and Thoracic Research
https://www.readbyqxmd.com/read/29108306/the-prostate-health-index-phi-predicts-oncological-outcome-and-biochemical-recurrence-after-radical-prostatectomy-analysis-in-437-patients
#10
Andreas Maxeiner, Ergin Kilic, Julia Matalon, Frank Friedersdorff, Kurt Miller, Klaus Jung, Carsten Stephan, Jonas Busch
The purpose of this study was to investigate the Prostate-Health-Index (PHI) for pathological outcome prediction following radical prostatectomy and also for biochemical recurrence prediction in comparison to established parameters such as Gleason-score, pathological tumor stage, resection status (R0/1) and prostate-specific antigen (PSA). Out of a cohort of 460 cases with preoperative PHI-measurements (World Health Organization calibration: Beckman Coulter Access-2-Immunoassay) between 2001 and 2014, 437 patients with complete follow up data were included...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29096631/prediction-of-uncomplicated-pregnancies-in-obese-women-a-prospective-multicentre-study
#11
Matias C Vieira, Sara L White, Nashita Patel, Paul T Seed, Annette L Briley, Jane Sandall, Paul Welsh, Naveed Sattar, Scott M Nelson, Debbie A Lawlor, Lucilla Poston, Dharmintra Pasupathy
BACKGROUND: All obese pregnant women are considered at equal high risk with respect to complications in pregnancy and birth, and are commonly managed through resource-intensive care pathways. However, the identification of maternal characteristics associated with normal pregnancy outcomes could assist in the management of these pregnancies. The present study aims to identify the factors associated with uncomplicated pregnancy and birth in obese women, and to assess their predictive performance...
November 3, 2017: BMC Medicine
https://www.readbyqxmd.com/read/29096402/risk-adjusted-colorectal-cancer-screening-using-the-fit-and-routine-screening-data-development-of-a-risk-prediction-model
#12
Jennifer Anne Cooper, Nick Parsons, Chris Stinton, Christopher Mathews, Steve Smith, Stephen P Halloran, Sue Moss, Sian Taylor-Phillips
BACKGROUND: The faecal immunochemical test (FIT) is replacing the guaiac faecal occult blood test in colorectal cancer screening. Increased uptake and FIT positivity will challenge colonoscopy services. We developed a risk prediction model combining routine screening data with FIT concentration to improve the accuracy of screening referrals. METHODS: Multivariate analysis used complete cases of those with a positive FIT (⩾20 μg g(-1)) and diagnostic outcome (n=1810; 549 cancers and advanced adenomas)...
November 2, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29095900/novel-risk-stratification-with-time-course-assessment-of-in-hospital-mortality-in-patients-with-acute-heart-failure
#13
Takeshi Yagyu, Masahiro Kumada, Tsutomu Nakagawa
BACKGROUND: Patients with acute heart failure (AHF) show various clinical courses during hospitalization. We aimed to identify time course predictors of in-hospital mortality and to establish a sequentially assessable risk model. METHODS AND RESULTS: We enrolled 1,035 consecutive AHF patients into derivation (n = 597) and validation (n = 438) cohorts. For risk assessments at admission, we utilized Get With the Guidelines-Heart Failure (GWTG-HF) risk scores. We examined significant predictors of in-hospital mortality from 11 variables obtained during hospitalization and developed a risk stratification model using multiple logistic regression analysis...
2017: PloS One
https://www.readbyqxmd.com/read/29084126/development-and-validation-of-a-fluoride-bone-injury-risk-prediction-model
#14
Jun Tu, Ke-Jian Liu, Dan Kuang, Liang Wang
BACKGROUND: Fluoride bone injury affects millions of people exposed to fluoride worldwide, and has no treatment - prevention is the only solution. OBJECTIVES: A risk prediction model was developed to identify workers at high risk for fluoride bone injury in aluminum production. METHODS: We collected data from the Molecular Epidemiology Study of Fluoride Bone Injury. 120 fluoride bone injury cases and 120 controls were involved in the study...
October 27, 2017: La Medicina del Lavoro
https://www.readbyqxmd.com/read/29079501/beyond-discrimination-a-comparison-of-calibration-methods-and-clinical-usefulness-of-predictive-models-of-readmission-risk
#15
Colin G Walsh, Kavya Sharman, George Hripcsak
BACKGROUND: Prior to implementing predictive models in novel settings, analyses of calibration and clinical usefulness remain as important as discrimination, but they are not frequently discussed. Calibration is a model's reflection of actual outcome prevalence in its predictions. Clinical usefulness refers to the utilities, costs, and harms of using a predictive model in practice. A decision analytic approach to calibrating and selecting an optimal intervention threshold may help maximize the impact of readmission risk and other preventive interventions...
October 24, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/29079412/predictors-of-death-in-chronic-chagas-cardiomyopathy-patients-with-pacemaker
#16
Giselle de Lima Peixoto, Martino Martinelli Filho, Sérgio Freitas de Siqueira, Silvana Angelina D'Ório Nishioka, Anísio Alexandre Andrade Pedrosa, Ricardo Alkmim Teixeira, Roberto Costa, Roberto Kalil Filho, José Antônio Franchini Ramires
BACKGROUND: Chronic Chagas cardiomyopathy (CCC) is the most serious and frequent manifestation of Chagas disease. Conduction abnormalities and bradycardia requiring pacemaker are common. The aim of this study was to determine the rate and predictors of death in CCC patients with pacemaker. METHODS: In this single-center prospective cohort study we assessed the outcome of 396 CCC patients with pacemaker, followed-up for at least 24months. All patients underwent a clinical and device assessment, 12-lead electrocardiography and echocardiography...
October 19, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29075171/factors-affecting-quality-of-laboratory-services-in-public-and-private-health-facilities-in-addis-ababa-ethiopia
#17
Eyob Abera Mesfin, Binyam Taye, Getachew Belay, Aytenew Ashenafi, Veronica Girma
BACKGROUND: Quality laboratory service is an essential component of health care system but in Sub-Saharan Africa such as Ethiopia, laboratories quality system remains weak due to several factors and it needs more attention to strengthen its capacity and quality system. METHODOLOGY: A cross sectional study was conducted using a questionnaire to assess factors affecting the quality of laboratory service at private and public health institutions in Addis Ababa. RESULTS: A total of 213 laboratory professionals participated in the study and 131 (61...
October 2017: EJIFCC
https://www.readbyqxmd.com/read/29070068/common-intensive-care-scoring-systems-do-not-outperform-age-and-glasgow-coma-scale-score-in-predicting-mid-term-mortality-in-patients-with-spontaneous-intracerebral-hemorrhage-treated-in-the-intensive-care-unit
#18
Marika Fallenius, Markus B Skrifvars, Matti Reinikainen, Stepani Bendel, Rahul Raj
BACKGROUND: Intensive care scoring systems are widely used in intensive care units (ICU) around the world for case-mix adjustment in research and benchmarking. The aim of our study was to investigate the usefulness of common intensive care scoring systems in predicting mid-term mortality in patients with spontaneous intracerebral hemorrhage (ICH) treated in intensive care units (ICU). METHODS: We performed a retrospective observational study including adult patients with spontaneous ICH treated in Finnish ICUs during 2003-2012...
October 25, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/29067603/prediction-of-non-sentinel-node-status-in-patients-with-melanoma-and-positive-sentinel-node-biopsy-an-italian-melanoma-intergroup-imi-study
#19
Carlo Riccardo Rossi, Simone Mocellin, Luca Giovanni Campana, Lorenzo Borgognoni, Serena Sestini, Giuseppe Giudice, Corrado Caracò, Adriana Cordova, Nicola Solari, Dario Piazzalunga, Paolo Carcoforo, Pietro Quaglino, Virginia Caliendo, Simone Ribero
BACKGROUND AND PURPOSE: Approximately 20% of melanoma patients harbor metastases in non-sentinel nodes (NSNs) after a positive sentinel node biopsy (SNB), and recent evidence questions the therapeutic benefit of completion lymph node dissection (CLND). We built a nomogram for prediction of NSN status in melanoma patients with positive SNB. METHODS: Data on anthropometric and clinicopathological features of patients with cutaneous melanoma who underwent CLND after a positive SNB were collected from nine Italian centers...
October 24, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29055845/deriving-suitability-factors-for-ca-markov-land-use-simulation-model-based-on-local-historical-data
#20
Xin Fu, Xinhao Wang, Y Jeffrey Yang
Multiple Criteria Evaluation (MCE) is a multi-attributes decision making tool often used in land suitability analysis and land use simulation using Cellular Automata (CA)-Markov model. The goal of this research is to explore the feasibility of using historical data of a study area to select, score, and weight factors quantitatively in the MCE. We have developed logistic regression models fitted by the historical land use changes to select and score each potential factor, and used the Entropy method to determine weights for the selected factors...
October 19, 2017: Journal of Environmental Management
keyword
keyword
24268
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"