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Stratification epidemiology

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https://www.readbyqxmd.com/read/28645522/acute-effects-of-ambient-temperature-and-particulate-air-pollution-on-fractional-exhaled-nitric-oxide-a-panel-study-among-diabetic-patients-in-shanghai-china
#1
Huichu Li, Hongjian Bai, Changyuan Yang, Renjie Chen, Cuicui Wang, Zhuohui Zhao, Haidong Kan
BACKGROUND: Epidemiological studies have shown the associations of ambient temperature and particulate matter (PM) air pollution with respiratory morbidity and mortality. However, the underlying mechanisms have not been well characterized. The aim of this study is to investigate the associations of temperature and fine and coarse PM with fractional exhaled nitric oxide (FeNO), a well-established biomarker of respiratory inflammation. METHODS: We conducted a longitudinal panel study involving six repeated FeNO tests among 33 type 2 diabetes mellitus patients from April to June 2013 in Shanghai, China...
June 20, 2017: Journal of Epidemiology
https://www.readbyqxmd.com/read/28644878/tumor-location-as-a-novel-high-risk-parameter-for-stage-ii-colorectal-cancers
#2
Biyuan Wang, Jiao Yang, Shuting Li, Meng Lv, Zheling Chen, Enxiao Li, Min Yi, Jin Yang
Current studies do not accurately evaluate the influence of tumor location on survival of colorectal cancer patients. This study aimed to explore whether tumor location could be identified as another high-risk factor in stage II colorectal cancer by using data identified from the Surveillance, Epidemiology, and End Results database. All colorectal cancer patients between 2004 and 2008 were grouped into three according to tumor location. Of 33,789 patients diagnosed with stage II colorectal cancer, 46.8% were right colon cancer, 37...
2017: PloS One
https://www.readbyqxmd.com/read/28640642/epidemiological-characteristics-of-hyperhomocysteinemia-and-h-type-hypertension-in-the-elderly-in-beijing-china
#3
Lina Ma, Li Li, Zhe Tang
Hyperhomocysteinemia (HHcy) is an important risk factor for atherosclerosis-related diseases, and H-type hypertension (HHT) is becoming a major health-care concern in China. We assessed the prevalence of HHcy and HHT in the elderly in a retrospective study based on data obtained from the Beijing Longitudinal Study of Aging. This cross-sectional study comprised 1460 people in the general population (638 males and 822 females) aged ≥60 years dwelling in an urban district, a suburb, and an outer suburb of Beijing in 2012...
June 22, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28636692/rethinking-the-current-american-joint-committee-on-cancer-tnm-staging-system-for-medullary-thyroid-cancer
#4
Mohamed Abdelgadir Adam, Samantha Thomas, Sanziana A Roman, Terry Hyslop, Julie A Sosa
Importance: Controversy exists around the American Joint Committee on Cancer (AJCC) TNM staging system for medullary thyroid cancer (MTC). Because of the rarity of the disease and limited available data, the staging system for MTC has been largely extrapolated from staging for differentiated thyroid cancer. Objectives: To evaluate how well the current (seventh and eighth editions) AJCC TNM staging system correlates with survival for patients with MTC and to suggest a possible revision...
June 21, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/28633157/epidemiology-practice-of-ventilation-and-outcome-for-patients-at-increased-risk-of-postoperative-pulmonary-complications-an-observational-study-in-29-countries
#5
(no author information available yet)
BACKGROUND: Limited information exists about the epidemiology and outcome of surgical patients at increased risk of postoperative pulmonary complications (PPCs), and how intraoperative ventilation was managed in these patients. OBJECTIVES: To determine the incidence of surgical patients at increased risk of PPCs, and to compare the intraoperative ventilation management and postoperative outcomes with patients at low risk of PPCs. DESIGN: This was a prospective international 1-week observational study using the 'Assess Respiratory Risk in Surgical Patients in Catalonia risk score' (ARISCAT score) for PPC for risk stratification...
June 20, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28630392/nighttime-snacking-is-associated-with-risk-of-obesity-and-hyperglycemia-in-adults-a-cross-sectional-survey-from-chinese-adult-teachers
#6
Liu Xiaoyang, Zheng Chunlin, Xu Cheng, Liu Qian, Wang Jin, Hong Yongzhi, Zhao Peng
Relationship between nighttime snack and human health conditions remains unclear. In this paper, we analyzed the association of frequency of nighttime snacking with obesity, hyperlipidemia and hyperglycemia using a Chinese teacher cohort. The Chinese teacher study contains 22,176 of the general adult population operated on in 2015. Information of nighttime snacking frequency was acquired by questionnaire. Overweight and obesity outcome were assessed by body mass index (BMI), and hypertension; hyperlipidemia and hyperglycemia were self-reported...
June 20, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28622367/role-of-serum-ferritin-level-on-overall-survival-in-patients-with-myelodysplastic-syndromes-results-of-a-meta-analysis-of-observational-studies
#7
Claudia Pileggi, Maddalena Di Sanzo, Valentina Mascaro, Maria Grazia Marafioti, Francesco Saverio Costanzo, Maria Pavia
BACKGROUND: The role of serum ferritin (SF) as a prognostic factor has been analyzed in patients with myelodysplastic syndromes (MDS) who have undergone hematopoietic stem cell transplantation (HSCT), but the prognostic role of elevated SF levels is still controversial in lower risk MDS patients. Therefore, we performed a meta-analysis of all available published literature to evaluate whether elevated SF levels are associated with a worse overall survival (OS) among patients with low risk MDS...
2017: PloS One
https://www.readbyqxmd.com/read/28608424/evaluation-of-the-8th-edition-american-joint-commission-on-cancer-ajcc-staging-system-for-patients-with-intrahepatic-cholangiocarcinoma-a-surveillance-epidemiology-and-end-results-seer-analysis
#8
Yuhree Kim, Dimitrios P Moris, Xu-Feng Zhang, Fabio Bagante, Gaya Spolverato, Carl Schmidt, Mary Dilhoff, Timothy M Pawlik
BACKGROUND: The objective of this study was to assess the prognostic performance of American Joint Committee on Cancer (AJCC) 8th edition in patients with intrahepatic cholangiocarcinoma (ICC) using a cancer registry. METHODS: The Surveillance, Epidemiology, and End Results (SEER) cancer registry was queried to identify 1008 patients who underwent surgical resection of ICC during 1998-2013. Kaplan-Meier method and Cox proportional hazards regression models were used to analyze long-term survival...
June 12, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28600657/validation-of-demographics-etiology-and-risk-factors-for-chronic-pancreatitis-in-the-usa-a-report-of-the-north-american-pancreas-study-naps-group
#9
Darwin L Conwell, Peter A Banks, Bimaljit S Sandhu, Stuart Sherman, Samer Al-Kaade, Timothy B Gardner, Michelle A Anderson, C Mel Wilcox, Michele D Lewis, Thiruvengadam Muniraj, Christopher E Forsmark, Gregory A Cote, Nalini M Guda, Ye Tian, Joseph Romagnuolo, Stephen R Wisniewski, Randall Brand, Andres Gelrud, Adam Slivka, David C Whitcomb, Dhiraj Yadav
BACKGROUND/OBJECTIVES: Our aim was to validate recent epidemiologic trends and describe the distribution of TIGAR-O risk factors in chronic pancreatitis (CP) patients. METHODS: The NAPS-2 Continuation and Validation (NAPS2-CV) study prospectively enrolled 521 CP patients from 13 US centers from 2008 to 2012. CP was defined by definitive changes in imaging, endoscopy, or histology. Data were analyzed after stratification by demographic factors, physician-defined etiology, participating center, and TIGAR-O risk factors...
June 9, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28596425/outcomes-of-hematopoietic-cell-transplantation-using-donors-or-recipients-with-inherited-chromosomally-integrated-hhv-6
#10
Joshua A Hill, Amalia S Magaret, Ruth Hall-Sedlak, Anna Mikhaylova, Meei-Li Huang, Brenda M Sandmaier, John A Hansen, Keith R Jerome, Danielle M Zerr, Michael Boeckh
Human herpesvirus 6 (HHV-6) species have a unique ability to integrate into chromosomal telomeres. Mendelian inheritance via gametocyte integration results in HHV-6 in every nucleated cell. The epidemiology and clinical impact of inherited chromosomally integrated (iciHHV-6) in hematopoietic cell transplant (HCT) recipients is unclear. We identified 4,319 HCT donor-recipient pairs (8,638 subjects) who received an allogeneic HCT and had archived pre-HCT peripheral blood mononuclear cell samples. We screened these samples for iciHHV-6 and compared characteristics of HCT recipients and donors with iciHHV-6 to recipients and donors without iciHHV-6, respectively...
June 8, 2017: Blood
https://www.readbyqxmd.com/read/28582382/predictive-model-for-the-development-of-hypertensive-cardiopathy-a-prospective-cohort-study
#11
Alexis Álvarez Aliaga, Julio César González-Aguilera, Liliana Del Rosario Maceo-Gómez, Alexis Suárez-Quesada
INTRODUCTION: Predictive models of cardiovascular conditions are useful tools for risk stratification. The high morbidity and mortality resulting from hypertensive cardiopathy creates a need for the use of tools to predict the risk of cardiovascular disease. OBJECTIVE: To evaluate the capacity of a model based on risk factors to predict the development of hypertensive cardiopathy after ten years in patients with a diagnosis of essential arterial hypertension. METHODS: A prospective cohort study was carried out in hypertensive patients cared for at the specialized arterial hypertension physician’s office of the Specialty Policlinic attached to “Carlos Manuel de Céspedes” Hospital, Bayamo Municipality, Granma Province, Cuba, from January 1, 2000 to December 31, 2009...
May 9, 2017: Medwave
https://www.readbyqxmd.com/read/28580853/-hungarian-philadelphia-negative-chronic-myeloproliferative-neoplasia-registry-evaluation-of-the-polycythemia-vera-patients
#12
Péter Dombi, Árpád Illés, Judit Demeter, Lajos Homor, Zsófia Simon, Ádám Kellner, Éva Karádi, Erika Valasinyószki, Miklós Udvardy, Miklós Egyed
Intruduction and aim: The Hungarian National Registry for Philadelphia chromosome negative myeloproliferative neoplasms has been developed. The aim of the recent study is to assess the clinical characteristics of Hungarian patients with polycythemia vera. METHOD: Data of 351 JAK2(V617F) and exon 12 mutation positive polycythemia vera patients were collected online from 15 haematology centres reporting epidemiologic, clinical characteristics, diagnostic tools, therapeutic interventions, thromboembolic complications, disease transformations...
June 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28572740/an-integrated-epidemiological-and-neural-net-model-of-the-warfarin-effect-in-managed-care-patients
#13
David M Jacobs, Filip Stefanovic, Greg Wilton, Andres Gomez-Caminero, Jerome J Schentag
INTRODUCTION: Risk assessment tools are utilized to estimate the risk for stroke and need of anticoagulation therapy for patients with atrial fibrillation (AF). These risk stratification scores are limited by the information inputted into them and a reliance on time-independent variables. The objective of this study was to develop a time-dependent neural net model to identify AF populations at high risk of poor clinical outcomes and evaluate the discriminatory ability of the model in a managed care population...
2017: Clinical Pharmacology: Advances and Applications
https://www.readbyqxmd.com/read/28544802/prognostic-models-and-nomograms-for-predicting-survival-of-patients-with-maxillary-sinus-carcinomas
#14
Weidong Shen, Naoko Sakamoto, Limin Yang
BACKGROUND: Maxillary sinus carcinoma is an uncommon malignancy. Most reports on prognosis of this disease are from single institutions and include few patients. We used data from the United States National Cancer Institute's Surveillance Epidemiology and End Results (SEER) program to construct models and nomograms for predicting outcomes of patients with maxillary sinus carcinomas. METHODS: We used records from 668 patients with primary maxillary sinus carcinomas reported to the SEER program from 2004 to 2013 to build nomograms based on stratified multivariable Cox proportional hazard models for predicting 5-year overall survival (OS) and cause-specific survival (CSS)...
May 23, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28538598/the-need-for-multidimensional-stratification-of-chronic-low-back-pain-lbp
#15
Yoga Raja Rampersaud, Andrew Bidos, Caroline Fanti, Anthony V Perruccio
STUDY DESIGN: Cross-sectional study of Canadian LBP patients seeking primary care. OBJECTIVE: Determine which existing primary care LBP stratification schema is associated with distinct sub-populations as characterized by easily identifiable primary epidemiological factors. SUMMARY OF BACKGROUND DATA: Low back pain (LBP) is among the most frequent reasons for visits to primary care physicians and a leading cause of years lived with disability...
May 22, 2017: Spine
https://www.readbyqxmd.com/read/28532458/results-of-an-early-intervention-programme-for-patients-with-bacteraemia-analysis-of-prognostic-factors-and-mortality
#16
A Del Arco, J Olalla, J de la Torre, A Blázquez, N Montiel-Quezel, J L Prada, F Rivas, J García-Alegría, F Fernández-Sánchez
BACKGROUND: Bacteraemia is a common cause of morbidity and mortality in patients admitted to hospital. The aim of this study is to analyse the results of a two-year programme for the early optimisation of antibiotic treatment in patients admitted to the Costa del Sol Hospital (Marbella. Spain). METHODS: A prospective two-year cohort study was conducted, evaluating all episodes of bacteraemia at the Costa del Sol Hospital. Epidemiological and microbiological characteristics, any modification of the initial antibiotic treatment, prognostic risk stratification, early mortality related to the episode of bacteraemia, and mortality after the seventh day, were included in the analysis...
May 22, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28506524/contemporary-incidence-and-cancer-control-outcomes-of-primary-neuroendocrine-prostate-cancer-a-seer-database-analysis
#17
Emanuele Zaffuto, Raisa Pompe, Marc Zanaty, Helen Davis Bondarenko, Sami-Ramzi Leyh-Bannurah, Marco Moschini, Paolo Dell'Oglio, Giorgio Gandaglia, Nicola Fossati, Armando Stabile, Kevin C Zorn, Francesco Montorsi, Alberto Briganti, Pierre I Karakiewicz
INTRODUCTION: Neuroendocrine carcinoma of the prostate (NEPC) is a rare entity. We aimed at providing contemporary data on incidence and survival figures of de-novo NEPC. MATERIALS AND METHODS: Within the Surveillance, Epidemiology, and End Results (SEER) database, we identified 309 individuals with de-novo NEPC diagnosed between 2004 and 2013. We evaluated age-adjusted incidence rates over the study. Kaplan-Meier analyses assessed overall survival (OS) after stratification according to histologic subtype, metastatic status, and treatment...
April 13, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28502494/association-of-fasting-triglyceride-concentration-and-postprandial-triglyceride-response-with-the-carotid-intima-media-thickness-in-the-middle-aged-the-netherlands-epidemiology-of-obesity-study
#18
Tim Christen, Renée de Mutsert, Karin B Gast, Patrick C N Rensen, Eelco de Koning, Frits R Rosendaal, Stella Trompet, J Wouter Jukema
BACKGROUND: People are in a postprandial state for the majority of the day, postprandial triglyceride (TG) response may be more important in the etiology of atherosclerosis than fasting TGs. OBJECTIVE: The objective of the study was to investigate the associations of fasting TG concentration (TGc) and postprandial TG response after a meal challenge with subclinical atherosclerosis, measured by intima-media thickness (IMT) in a middle-aged population. METHODS: A total of 5574 participants (57% women) with a mean (standard deviation [SD]) age of 56 (6) years were included in this cross-sectional analysis of baseline measurements of The Netherlands Epidemiology of Obesity study...
March 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28486474/vitamin-d-levels-and-susceptibility-to-asthma-elevated-immunoglobulin-e-levels-and-atopic-dermatitis-a-mendelian-randomization-study
#19
Despoina Manousaki, Lavinia Paternoster, Marie Standl, Miriam F Moffatt, Martin Farrall, Emmanuelle Bouzigon, David P Strachan, Florence Demenais, Mark Lathrop, William O C M Cookson, J Brent Richards
BACKGROUND: Low circulating vitamin D levels have been associated with risk of asthma, atopic dermatitis, and elevated total immunoglobulin E (IgE). These epidemiological associations, if true, would have public health importance, since vitamin D insufficiency is common and correctable. METHODS AND FINDINGS: We aimed to test whether genetically lowered vitamin D levels were associated with risk of asthma, atopic dermatitis, or elevated serum IgE levels, using Mendelian randomization (MR) methodology to control bias owing to confounding and reverse causation...
May 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28482404/-research-advances-in-nonalcoholic-fatty-liver-disease-and-alcoholic-liver-disease-in-2016
#20
Y S Chen, B Y Wang, Y M Li
Nonalcoholic fatty liver disease (NAFLD) has become the most important liver disease in the world and its prevalence rate still tends to increase. However, there are still no effective drugs so far. The complex and dynamic interactions between multiple effects/mediators in the pathophysiology of NAFLD provide new insights and help with stratification and redefinition of clinical phenotypes and evaluation of disease susceptibility and multiplicity of progression. They may also provide new targets for future treatment...
March 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
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