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Calibration logistic regression

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https://www.readbyqxmd.com/read/28629241/a-model-to-predict-risk-of-postpartum-infection-after-caesarean-delivery
#1
Laura J Moulton, J Eric Jelovsek, Mark Lachiewicz, Kevin Chagin, Oluwatosin Goje
PURPOSE: To build and validate a statistical model to predict infection after Caesarean delivery (CD). METHODS: Patient and surgical variables within 30 days of CD were collected on 2419 women. Postpartum infection included surgical site infection, urinary tract infection, endomyometritis and pneumonia. The data were split into model development and internal validation (1 Jan - 31 Aug; N=1641) and temporal validation subsets (1 Sept - 31 Dec; N=778). Logistic regression models were fit to the data with concordance index and calibration curves used to assess accuracy...
June 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28625262/-predictive-value-of-sofa-score-combined-agi-grading-system-in-elderly-patients-with-sepsis-a-retrospective-analysis-with-91-patients
#2
Lingling Wang, Rui Chen, Zexun Mo, Jiahui Dong, Zhaokun Sun, Fei Xiao, Shaoting Hu, Richeng Xiong, Jie Sun, Zhou Yu, Zhenhui Guo
OBJECTIVE: To explore the predictive value of sequential organ failure assessment (SOFA) score combined the acute gastrointestinal injury (AGI) grading system in critical elderly patients with sepsis. METHODS: A retrospective analysis was conducted. Elderly patients with sepsis aged > 60 years admitted to medical intensive care unit (MICU) of General Hospital of Guangzhou Military Command from March 2014 to December 2015 and experiencing critical care over 48 hours were enrolled...
February 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28615933/development-of-a-nomogram-for-predicting-in-hospital-mortality-of-patients-with-exacerbation-of-chronic-obstructive-pulmonary-disease
#3
Yukiyo Sakamoto, Yasuhiro Yamauchi, Hideo Yasunaga, Hideyuki Takeshima, Wakae Hasegawa, Taisuke Jo, Yusuke Sasabuchi, Hiroki Matsui, Kiyohide Fushimi, Takahide Nagase
BACKGROUND AND OBJECTIVES: Patients with chronic obstructive pulmonary disease (COPD) often experience exacerbations of their disease, sometimes requiring hospital admission and being associated with increased mortality. Although previous studies have reported mortality from exacerbations of COPD, there is limited information about prediction of individual in-hospital mortality. We therefore aimed to use data from a nationwide inpatient database in Japan to generate a nomogram for predicting in-hospital mortality from patients' characteristics on admission...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28615279/medicines-optimisation-assessment-tool-moat-a-prognostic-model-to-target-hospital-pharmacists-input-to-improve-patient-outcomes-protocol-for-an-observational-study
#4
Cathy Geeson, Li Wei, Bryony Dean Franklin
INTRODUCTION: Medicines optimisation is a key role for hospital pharmacists, but with ever-increasing demands on services there is a need to increase efficiency while maintaining patient safety. The aim of this study is to develop a prognostic model, the Medicines Optimisation Assessment Tool (MOAT), which can be used to target patients most in need of pharmacists' input while in hospital. METHODS AND ANALYSIS: The MOAT will be developed following recommendations of the Prognosis Research Strategy partnership...
June 14, 2017: BMJ Open
https://www.readbyqxmd.com/read/28611964/lateral-femoral-bowing-and-the-location-of-atypical-femoral-fractures
#5
Hyunseung Yoo, Youngho Cho, Youngbo Park, Sungsoo Ha
PURPOSE: Atypical femoral fractures (AFFs) occur in two distinct part, subtrochanter and diaphysis. The aim of this study was to investigate the relationship between the lateral femoral bowing angle and the location of AFF. MATERIALS AND METHODS: This study included a total of 56 cases in 45 patients who underwent surgical treatment between January 2010 and December 2015. For the diaphyseal and subtrochanteric AFFs, we evaluated the relationship between the anatomic location and lateral femoral bowing angle...
June 2017: Hip & Pelvis
https://www.readbyqxmd.com/read/28611890/index-to-predict-in-hospital-mortality-in-older-adults-after-non-traumatic-emergency-department-intubations
#6
Kei Ouchi, Samuel Hohmann, Tadahiro Goto, Peter Ueda, Emily L Aaronson, Daniel J Pallin, Marcia A Testa, James A Tulsky, Jeremiah D Schuur, Mara A Schonberg
INTRODUCTION: Our goal was to develop and validate an index to predict in-hospital mortality in older adults after non-traumatic emergency department (ED) intubations. METHODS: We used Vizient administrative data from hospitalizations of 22,374 adults ≥75 years who underwent non-traumatic ED intubation from 2008-2015 at nearly 300 U.S. hospitals to develop and validate an index to predict in-hospital mortality. We randomly selected one half of participants for the development cohort and one half for the validation cohort...
June 2017: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28606748/long-term-mortality-in-critically-ill-burn-survivors
#7
Stephanie Nitzschke, Anaeze C Offodile, Ryan P Cauley, Jason E Frankel, Andrew Beam, Kevin M Elias, Fiona K Gibbons, Ali Salim, Kenneth B Christopher
INTRODUCTION: Little is known about long term survival risk factors in critically ill burn patients who survive hospitalization. We hypothesized that patients with major burns who survive hospitalization would have favorable long term outcomes. METHODS: We performed a two center observational cohort study in 365 critically ill adult burn patients who survived to hospital discharge. The exposure of interest was major burn defined a priori as >20% total body surface area burned [TBSA]...
June 9, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28598196/derivation-and-validation-of-a-prognostic-model-to-predict-six-month-mortality-in-an-intensive-care-unit-population
#8
Sarah Hadique, Stacey Culp, Rahul G Sangani, Kyle D Chapman, Saad Khan, John E Parker, Alvin H Moss
RATIONALE: Identification of terminally ill patients in the intensive care unit (ICU) would facilitate decision making and timely palliative care. OBJECTIVE: To develop and validate a patient-specific integrated prognostic model to predict six-month mortality in medical ICU patients. METHODS: A longitudinal prospective cohort study of temporally split samples of 1049 consecutive Medical ICU patients in a tertiary care hospital was performed...
June 9, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28596059/development-and-validation-of-a-pancreatic-injury-mortality-score-pims-based-on-473-consecutive-patients-treated-at-a-level-1-trauma-center
#9
Jake E Krige, Richard T Spence, Pradeep H Navsaria, Andrew J Nicol
BACKGROUND: This study sought to develop a pancreatic injury mortality score (PIMS) to identify patients at greatest risk of in-hospital mortality after a major pancreatic injury. METHODS: The study used data from a prospective database of 473 patients treated for pancreatic injuries between January 1990 and December 2015. Two thirds of the patients were assigned to the derivation cohort and one third to the validation cohort. Clinical correlates of in-hospital death were identified and considered in stepwise logistic regression analyses that identified the factors included in the risk index...
April 17, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28594205/field-validity-of-static-99-r-scores-in-a-statewide-sample-of-34-687-convicted-sexual-offenders
#10
Marcus T Boccaccini, Amanda K Rice, L Maaike Helmus, Daniel C Murrie, Paige B Harris
The Static-99 (and revision, the Static-99R) reflect the most researched and widely used approach to sex offender risk assessment. Because the measure is so widely applied in jurisdictions beyond those on which it was developed, it becomes crucial to examine its field validity and the degree to which published norms and recidivism rates apply to other jurisdictions. We present a new and greatly expanded field study of the predictive validity (M = 5.23 years follow-up) of the Static-99 as applied system-wide in Texas (N = 34,687)...
June 2017: Psychological Assessment
https://www.readbyqxmd.com/read/28588898/gender-alexithymia-and-physical-inactivity-associated-with-abdominal-obesity-in-type-1-diabetes-mellitus-a-cross-sectional-study-at-a-secondary-care-hospital-diabetes-clinic
#11
Eva O Melin, Ralph Svensson, Maria Thunander, Magnus Hillman, Hans O Thulesius, Mona Landin-Olsson
BACKGROUND: Obesity is linked to cardiovascular diseases and increasingly common in type 1 diabetes mellitus (T1DM) since the introduction of intensified insulin therapy. Our main aim was to explore associations between obesity and depression, anxiety, alexithymia and self-image measures and to control for lifestyle variables in a sample of persons with T1DM. Secondary aims were to explore associations between abdominal and general obesity and cardiovascular complications in T1DM. METHODS: Cross sectional study of 284 persons with T1DM (age 18-59 years, men 56%), consecutively recruited from one secondary care hospital diabetes clinic in Sweden...
2017: BMC Obesity
https://www.readbyqxmd.com/read/28587662/a-nonparametric-multiple-imputation-approach-for-missing-categorical-data
#12
Muhan Zhou, Yulei He, Mandi Yu, Chiu-Hsieh Hsu
BACKGROUND: Incomplete categorical variables with more than two categories are common in public health data. However, most of the existing missing-data methods do not use the information from nonresponse (missingness) probabilities. METHODS: We propose a nearest-neighbour multiple imputation approach to impute a missing at random categorical outcome and to estimate the proportion of each category. The donor set for imputation is formed by measuring distances between each missing value with other non-missing values...
June 6, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/28583737/development-of-a-validated-model-to-predict-30-day-stroke-and-1-year-survival-after-carotid-endarterectomy-for-asymptomatic-stenosis-using-the-vascular-quality-initiative
#13
Randall R DeMartino, Benjamin S Brooke, Dan Neal, Adam W Beck, Mark F Conrad, Shipra Arya, Sapan Desai, Faisal Aziz, Patrick Ryan, Jack L Cronenwett, Larry W Kraiss
OBJECTIVE: Carotid endarterectomy (CEA) has been shown to be an effective treatment for patients with asymptomatic carotid artery stenosis when perioperative stroke rates are low and patients survive long enough to benefit from the intervention. Our objective was to develop and to validate a simple risk prediction model for 30-day stroke and 1-year mortality to guide optimal selection of patients for CEA. METHODS: Asymptomatic patients undergoing first-time elective CEA within the Vascular Quality Initiative (VQI) from 2010 to 2015 were selected...
June 2, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28579970/predicting-disability-after-ischemic-stroke-based-on-comorbidity-index-and-stroke-severity-from-the-virtual-international-stroke-trials-archive-acute-collaboration
#14
Thanh G Phan, Benjamin B Clissold, Henry Ma, John Van Ly, Velandai Srikanth
BACKGROUND AND AIM: The availability and access of hospital administrative data [coding for Charlson comorbidity index (CCI)] in large data form has resulted in a surge of interest in using this information to predict mortality from stroke. The aims of this study were to determine the minimum clinical data set to be included in models for predicting disability after ischemic stroke adjusting for CCI and clinical variables and to evaluate the impact of CCI on prediction of outcome. METHOD: We leverage anonymized clinical trial data in the Virtual International Stroke Trials Archive...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28571933/predicting-readmission-risk-of-patients-with-diabetes-hospitalized-for-cardiovascular-disease-a-retrospective-cohort-study
#15
Daniel J Rubin, Sherita Hill Golden, Marie E McDonnell, Huaqing Zhao
OBJECTIVE: To develop and validate a tool that predicts 30d readmission risk of patients with diabetes hospitalized for cardiovascular disease (CVD), the Diabetes Early Readmission Risk Indicator-CVD (DERRI-CVD™). METHODS: A cohort of 8189 discharges was retrospectively selected from electronic records of adult patients with diabetes hospitalized for CVD. Discharges of 60% of the patients (n=4950) were randomly selected as a training sample and the remaining 40% (n=3219) were the validation sample...
May 5, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28558772/predictive-value-of-preoperative-peripheral-blood-neutrophil-lymphocyte-ratio-for-lymph-node-metastasis-in-patients-of-resectable-pancreatic-neuroendocrine-tumors-a-nomogram-based-study
#16
Zhou Tong, Lulu Liu, Yi Zheng, Weiqin Jiang, Peng Zhao, Weijia Fang, Weilin Wang
BACKGROUND: Neutrophil-to-lymphocyte ratio (NLR) is one of the systemic inflammation markers, which has prognostic values in many types of tumor. However, hardly any research has reported the relationship between NLR and pancreatic neuroendocrine tumors (PanNETs). In this study, we aimed to evaluate the predictive value of the preoperative peripheral blood NLR on the clinical outcomes in patients of resectable PanNETs. METHODS: Ninety-five cases of PanNETs registered in the First Affiliated Hospital of Zhejiang University between March 2009 and May 2016 and underwent pancreatic surgery were included in this study...
May 30, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28548951/development-of-a-novel-score-for-the-prediction-of-hospital-mortality-in-patients-with-severe-sepsis-the-use-of-electronic-healthcare-records-with-lasso-regression
#17
Zhongheng Zhang, Yucai Hong
BACKGROUND AND OBJECTIVE: There are several disease severity scores being used for the prediction of mortality in critically ill patients. However, none of them was developed and validated specifically for patients with severe sepsis. The present study aimed to develop a novel prediction score for severe sepsis. RESULTS: A total of 3206 patients with severe sepsis were enrolled, including 1054 non-survivors and 2152 survivors. The LASSO score showed the best discrimination (area under curve: 0...
May 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28547876/nurses-but-not-supervisors-safety-practices-are-linked-with-job-satisfaction
#18
David A Hurtado, Seung-Sup Kim, S V Subramanian, Jack T Dennerlein, David C Christiani, Dean M Hashimoto, Glorian Sorensen
AIMS: To test the associations of safety practices as reported by nurses and their respective unit supervisors with job satisfaction. BACKGROUND: Psychosocial workplace factors are associated with job satisfaction; however, it is unknown whether nurses and supervisors accounts of safety practices are differentially linked to this outcome. METHODS: Cross-sectional study design including nurses (n = 1052) nested in 94 units in two hospitals in Boston (MA, USA)...
May 25, 2017: Journal of Nursing Management
https://www.readbyqxmd.com/read/28538760/a-multivariate-model-for-prediction-of-obstructive-coronary-disease-in-patients-with-acute-chest-pain-development-and-validation
#19
Luis Cláudio Lemos Correia, Maurício Cerqueira, Manuela Carvalhal, Felipe Ferreira, Guilherme Garcia, André Barcelos da Silva, Nicole de Sá, Fernanda Lopes, Ana Clara Barcelos, Márcia Noya-Rabelo
Background: Currently, there is no validated multivariate model to predict probability of obstructive coronary disease in patients with acute chest pain. Objective: To develop and validate a multivariate model to predict coronary artery disease (CAD) based on variables assessed at admission to the coronary care unit (CCU) due to acute chest pain. Methods: A total of 470 patients were studied, 370 utilized as the derivation sample and the subsequent 100 patients as the validation sample...
April 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28526942/development-of-a-new-risk-nomogram-of-perioperative-major-adverse-cardiac-events-for-chinese-patients-undergoing-colorectal-carcinoma-surgery
#20
Juhong Zhang, Ying Xiao, Daya Yang, Xiaodong Zhuang, Ling Wang, Xiuren Gao, Zhibin Huang
PURPOSE: The purpose of this study is to create a new risk nomogram to predict perioperative major adverse cardiac events in patients undergoing colorectal carcinoma surgery. METHODS: A total of 1899 patients who underwent colorectal carcinoma surgery at a tertiary teaching hospital in China between 2007 and 2012 were recruited. Logistic regression analysis was used to define risk factors for major adverse cardiac events. A nomogram-predicting model was built based on the logistic regression model and discrimination was tested by receiver operating characteristic curves...
May 19, 2017: International Journal of Colorectal Disease
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