Search results for "epidemiologic methods"

showing 10 items of 109 documents

Low physical activity and its association with diabetes and other cardiovascular risk factors: a nationwide, population-based study

2016

Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM; ISCIII Ministerio de Ciencia e Innovacion); Ministerio de Sanidad y Consumo; Spanish Diabetes Society (SED)

QuestionnairesMaleDislipidemiasCross-sectional studyEstudios transversalesEspañaObesidadÍndice de masa corporalBiochemistryBody Mass Index0302 clinical medicineEndocrinology:Phenomena and Processes::Musculoskeletal and Neural Physiological Phenomena::Musculoskeletal Physiological Phenomena::Musculoskeletal Physiological Processes::Movement::Motor Activity [Medical Subject Headings]Public and Occupational Healthlcsh:Science:Phenomena and Processes::Physiological Phenomena::Nutritional Physiological Phenomena::Diet::Diet Mediterranean [Medical Subject Headings]:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Data Collection::Vital Statistics::Morbidity::Prevalence [Medical Subject Headings]:Chemicals and Drugs::Lipids::Glycerides::Triglycerides [Medical Subject Headings]:Geographicals::Geographic Locations::Europe::Spain [Medical Subject Headings]Aged 80 and overDiabetis:Diseases::Nutritional and Metabolic Diseases::Metabolic Diseases::Lipid Metabolism Disorders::Dyslipidemias [Medical Subject Headings]:Phenomena and Processes::Physiological Phenomena::Body Constitution::Body Weights and Measures::Body Size::Body Weight::Overweight::Obesity::Obesity Abdominal [Medical Subject Headings]Cardiovascular DiseasesObesitatEnfermedades cardiovascularesFactores de riesgomedicine.medical_specialtyEndocrine Disorders:Chemicals and Drugs::Lipids::Lipoproteins::Lipoproteins HDL::Cholesterol HDL [Medical Subject Headings]:Psychiatry and Psychology::Behavior and Behavior Mechanisms::Behavior::Habits::Smoking [Medical Subject Headings]QüestionarisTriglicéridosExercici -- Aspectes sanitaris03 medical and health sciencesDiabetes MellitusHumans:Diseases::Cardiovascular Diseases [Medical Subject Headings]ExerciseAgedSurvey ResearchMalalties cardiovascularsPreventionlcsh:REnfermedad crónicaBiology and Life SciencesPhysical ActivityInsulin-resistancemedicine.diseaseActividad motoraObesityLipid metabolismCross-Sectional StudiesDyslipidemiaAdherenceGlucosalcsh:QBody mass indexDyslipidemiaDemography:Psychiatry and Psychology::Behavior and Behavior Mechanisms::Psychology Social::Life Style::Sedentary Lifestyle [Medical Subject Headings]PhysiologyPhysical fitnessSistema cardiovascular -- Malalties:Chemicals and Drugs::Carbohydrates::Monosaccharides::Hexoses::Glucose [Medical Subject Headings]lcsh:Medicine:Phenomena and Processes::Physiological Phenomena::Body Constitution::Body Weights and Measures::Body Size::Body Weight::Overweight::Obesity [Medical Subject Headings]:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Probability::Risk::Risk Factors [Medical Subject Headings]Obesidad abdominalGeographical LocationsGlucose MetabolismRisk FactorsHábito de fumarMedicine and Health SciencesPrevalence030212 general & internal medicinePrediabetes:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Data Collection::Surveys and Questionnaires [Medical Subject Headings]Multidisciplinary:Diseases::Pathological Conditions Signs and Symptoms::Pathologic Processes::Disease Attributes::Chronic Disease [Medical Subject Headings]DiabetesMiddle Aged:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Epidemiologic Studies::Cross-Sectional Studies [Medical Subject Headings]EuropeEncuestas y cuestionariosPhysiological ParametersResearch DesignCarbohydrate MetabolismFemaleResearch ArticleAdultAdolescent030209 endocrinology & metabolismVida sedentariaResearch and Analysis MethodsHDL-colesterolYoung AdultSex FactorsDiabetes mellitusmedicineAdultsObesityEspanya:Diseases::Endocrine System Diseases::Diabetes Mellitus::Prediabetic State [Medical Subject Headings]Sedentary lifestylebusiness.industryEstado prediabéticoBody WeightPhysical fitnessDieta mediterráneaMetabolisme dels lípidsDietMetabolismSpainMetabolic DisordersPeople and PlacesPhysical therapySedentary BehaviorbusinessPrevalenciaCondició física
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Epidemiology and Reporting Characteristics of Systematic Reviews of Biomedical Research: A Cross-Sectional Study.

2016

Background Systematic reviews (SRs) can help decision makers interpret the deluge of published biomedical literature. However, a SR may be of limited use if the methods used to conduct the SR are flawed, and reporting of the SR is incomplete. To our knowledge, since 2004 there has been no cross-sectional study of the prevalence, focus, and completeness of reporting of SRs across different specialties. Therefore, the aim of our study was to investigate the epidemiological and reporting characteristics of a more recent cross-section of SRs. Methods and Findings We searched MEDLINE to identify potentially eligible SRs indexed during the month of February 2014. Citations were screened using pre…

Research designmedicine.medical_specialtyBiomedical ResearchSystematic ReviewsCross-sectional studyMEDLINEResearch and Analysis Methods03 medical and health sciencesDatabase and Informatics Methods0302 clinical medicineMathematical and Statistical TechniquesConDuCT-IIEpidemiologyparasitic diseasesmedicineMedicine and Health SciencesHumansMedical physics030212 general & internal medicineDatabase SearchingStatistical Methods/dk/atira/pure/core/keywords/conduct_iiStatistical DataHealth Care Policybusiness.industryRGeneral MedicinePublication biasResearch Assessment3. Good healthHealth CareReview Literature as TopicSystematic reviewCross-Sectional StudiesData extractionResearch DesignMeta-analysisPhysical SciencesResearch Reporting GuidelinesMedicinebusinessEpidemiologic Methods030217 neurology & neurosurgeryMathematicsStatistics (Mathematics)Screening GuidelinesResearch ArticleMeta-AnalysisPLoS medicine
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Elasticity as a measure for online determination of remission points in ongoing epidemics.

2020

The correct identification of change-points during ongoing outbreak investigations of infectious diseases is a matter of paramount importance in epidemiology, with major implications for the management of health care resources, public health and, as the COVID-19 pandemic has shown, social live. Onsets, peaks, and inflexion points are some of them. An onset is the moment when the epidemic starts. A "peak" indicates a moment at which the incorporated values, both before and after, are lower: a maximum. The inflexion points identify moments in which the rate of growth of the incorporation of new cases changes intensity. In this study, after interpreting the concept of elasticity of a random va…

Statistics and Probability2019-20 coronavirus outbreakCoronavirus disease 2019 (COVID-19)Computer scienceEpidemiology01 natural sciencesTime010104 statistics & probability03 medical and health sciencesRemission induction0302 clinical medicinePandemicHealth careEconometricsHumansComputer Simulation030212 general & internal medicine0101 mathematicsElasticity (economics)EpidemicsPandemicsProportional Hazards Modelsbusiness.industryRemission InductionCOVID-19businessEpidemiologic MethodsRandom variableRate of growthStatistics in medicineREFERENCES
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Detection of spatial disease clusters with LISA functions.

2011

Detection of disease clusters is an important tool in epidemiology that can help to identify risk factors associated with the disease and in understanding its etiology. In this article we propose a method for the detection of spatial clusters where the locations of a set of cases and a set of controls are available. The method is based on local indicators of spatial association functions (LISA functions), particularly on the development of a local version of the product density, which is a second-order characteristic of spatial point processes. The behavior of the method is evaluated and compared with Kulldorff's spatial scan statistic by means of a simulation study. It is shown that the LI…

Statistics and ProbabilityAdultMaleDisease clustersEpidemiologyScan statisticIrregular shapePoint processDisease OutbreaksSet (abstract data type)StatisticsCluster AnalysisHumansComputer SimulationSensitivity (control systems)MathematicsAgedAged 80 and overbusiness.industryPattern recognitionMiddle AgedSpainData Interpretation StatisticalSpatial clusteringFemaleKidney DiseasesArtificial intelligencebusinessEpidemiologic MethodsType I and type II errorsStatistics in medicine
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Testing for homogeneity in meta-analysis I. The one-parameter case: standardized mean difference.

2010

Meta-analysis seeks to combine the results of several experiments in order to improve the accuracy of decisions. It is common to use a test for homogeneity to determine if the results of the several experiments are sufficiently similar to warrant their combination into an overall result. Cochran's Q statistic is frequently used for this homogeneity test. It is often assumed that Q follows a chi-square distribution under the null hypothesis of homogeneity, but it has long been known that this asymptotic distribution for Q is not accurate for moderate sample sizes. Here, we present an expansion for the mean of Q under the null hypothesis that is valid when the effect and the weight for each s…

Statistics and ProbabilityBiometryModels StatisticalGeneral Immunology and MicrobiologyApplied MathematicsHomogeneity (statistics)Pearson's chi-squared testAsymptotic distributionGeneral MedicineGeneral Biochemistry Genetics and Molecular Biologysymbols.namesakeF-testMeta-Analysis as TopicData Interpretation StatisticalStatisticsTest statisticNull distributionsymbolsChi-square testZ-testComputer SimulationGeneral Agricultural and Biological SciencesEpidemiologic MethodsAlgorithmsMathematicsBiometrics
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Estimating completeness in cancer registries--comparing capture-recapture methods in a simulation study.

2008

Completeness of registration is one of the quality indicators usually reported by cancer registries. This allows researchers to assess how useful and representative the data is. Several methods have been suggested to estimate completeness. In this paper a multi-state model for the process of cancer diagnosis and treatment is presented. In principle, every contact with a doctor during diagnosis, treatment, and aftercare can give rise to a cancer registry notification with a certain probability. Therefore the states included in the model are "incident tumour" and "death" but also contacts with doctors such as consultation of a general practitioner or specialised doctor, diagnostic procedures,…

Statistics and ProbabilityModels StatisticalComputer scienceIncidenceLinear modelEstimatorBreast NeoplasmsGeneral MedicineCancer registryMark and recaptureStatistical simulationSimulated dataStatisticsEconometricsProbability distributionHumansComputer SimulationFemaleRegistriesStatistics Probability and UncertaintyCompleteness (statistics)Epidemiologic MethodsBiometrical journal. Biometrische Zeitschrift
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epiModel: A system to build automatically systems of differential equations of compartmental type-epidemiological models

2011

In this paper we describe epiModel, a code developed in Mathematica that facilitates the building of systems of differential equations corresponding to type-epidemiological linear or quadratic models whose characteristics are defined in text files following an easy syntax. It includes the possibility of obtaining the equations of models involving age and/or sex groups. © 2011.

Systems of differential equationsDifferential equationsTheoretical computer scienceBuilding codesDifferential equationComputer scienceAutomatic building of systems of differential equationsDisease transmissionMathematical parametersMathematicaHealth InformaticsText fileComputer programEpidemiological modelType (model theory)Models BiologicalModellingArticleDisease predispositionQuadratic equationMathematical modelComputingMethodologies_SYMBOLICANDALGEBRAICMANIPULATIONComputer SimulationQuadratic modelsPriority journalSyntax (programming languages)Computer programText fileConvalescenceComputer Science ApplicationsCompartment modelType-epidemiological modelProgramming LanguagesEpidemiologic MethodsMATEMATICA APLICADADisease transmissionHuman
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Use of Different Food Classification Systems to Assess the Association between Ultra-Processed Food Consumption and Cardiometabolic Health in an Elde…

2021

The PREDIMED-Plus trial was supported by the European Research Council (Advanced Research grant 2014–2019; agreement #340918; granted to M.Á.M.-G.); the official Spanish institutions for funding scientific biomedical research, CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII) through the Fondo de Investigación para la Salud (FIS) which is co-funded by the European Regional Development Fund (coordinated FIS projects led by J.S-S. and J.V., including the following projects: PI13/00673, PI13/00492, PI13/00272, PI13/01123, PI13/00462, PI13/00233, PI13/02184, PI13/00728, PI13/01090, PI13/01056, PI14/01722, PI14/00636, PI14/00618, PI14/00696, PI…

Síndrome metabólicoMaleFood processingMediterranean dietNOVAObesidadÍndice de masa corporal:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]0302 clinical medicineultra-processed foodMedicineTX341-641:Diseases::Pathological Conditions Signs and Symptoms::Signs and Symptoms::Body Weight::Overweight [Medical Subject Headings]Body mass indexclassification systemsIncidenceIARC:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Data Collection::Questionnaires [Medical Subject Headings]Metabolic syndrome3. Good healthNutriciónCohortManipulación de alimentosDietaFactores de riesgo cardiometabólicoConcordanceUNC:Check Tags::Male [Medical Subject Headings]ClasificaciónClassification systemsDiet SurveysArticle03 medical and health sciencesfood processingHumans:Diseases::Cardiovascular Diseases [Medical Subject Headings]Aged030109 nutrition & dietetics:Health Care::Health Care Economics and Organizations::Organizations::International Agencies [Medical Subject Headings]:Persons::Persons::Age Groups::Adult::Middle Aged [Medical Subject Headings]PREDIMED-Plusmedicine.diseaseObesity:Diseases::Nutritional and Metabolic Diseases::Nutrition Disorders::Overnutrition::Obesity [Medical Subject Headings]Blood pressure:Check Tags::Female [Medical Subject Headings]:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Epidemiologic Studies::Cohort Studies [Medical Subject Headings]Linear ModelsFast FoodsMetabolic syndromeOlder people0301 basic medicineSíndrome metabòlicaFood HandlingOverweightDiet MediterraneanPersones gransCohort Studiescardiometabolic riskEndocrinología030212 general & internal medicine:Persons::Persons::Age Groups::Adult::Aged [Medical Subject Headings]2. Zero hungerMetabolic SyndromeNutrition and Dietetics:Technology and Food and Beverages::Technology Industry and Agriculture::Industry::Food Industry::Food Handling [Medical Subject Headings]:Analytical Diagnostic and Therapeutic Techniques and Equipment::Therapeutics::Nutrition Therapy::Diet Therapy::Diet Mediterranean [Medical Subject Headings]Middle Aged:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Data Collection::Health Surveys::Nutrition Surveys::Diet Surveys [Medical Subject Headings]Female:Technology and Food and Beverages::Food and Beverages::Food::Fast Foods [Medical Subject Headings]medicine.symptom:Diseases::Nutritional and Metabolic Diseases::Metabolic Diseases::Glucose Metabolism Disorders::Hyperinsulinism::Insulin Resistance::Metabolic Syndrome X [Medical Subject Headings]Dietética y nutrición:Analytical Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Physical Examination::Body Constitution::Body Weights and Measures::Body Mass Index [Medical Subject Headings]:Phenomena and Processes::Physiological Phenomena::Nutritional Physiological Phenomena::Diet [Medical Subject Headings]:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Data Collection::Vital Statistics::Morbidity::Incidence [Medical Subject Headings]Environmental healthMediterranean dietObesityAlimentos ultraprocesados:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Models Statistical::Linear Models [Medical Subject Headings]NutricióNutrition:Geographical Locations::Geographic Locations::Europe::Spain [Medical Subject Headings]business.industryNutrition. Foods and food supplyCardiometabolic Risk FactorsOverweightDieta mediterráneaCardiometabolic riskUltra-processed foodDietSpainIFICSobrepesoFood processingbusinessdietFood ScienceNutrients
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The Effect of Physical Activity and High Body Mass Index on Health-Related Quality of Life in Individuals with Metabolic Syndrome

2020

© 2020 by the authors.

Síndrome metabólicoMaleSíndrome metabòlicaobesityCalidad de vidaHealth Toxicology and MutagenesishumanosObesidadlcsh:Medicinephysical activityejercicio físicoÍndice de masa corporal:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]0302 clinical medicineQuality of lifeMedicine030212 general & internal medicinemediana edad:Persons::Persons::Age Groups::Adult::Aged [Medical Subject Headings]2. Zero hungerMetabolic SyndromeancianoMiddle AgedEjercicio físico:Health Care::Health Services Administration::Patient Care Management::Comprehensive Health Care::Primary Health Care [Medical Subject Headings]3. Good health:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Epidemiologic Studies::Cross-Sectional Studies [Medical Subject Headings]health-related quality of life:Anthropology Education Sociology and Social Phenomena::Social Sciences::Quality of Life [Medical Subject Headings]ObesitatFemaleAnalysis of variance:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Anthropometry::Body Weights and Measures::Body Mass Index [Medical Subject Headings]:Diseases::Nutritional and Metabolic Diseases::Metabolic Diseases::Glucose Metabolism Disorders::Hyperinsulinism::Insulin Resistance::Metabolic Syndrome X [Medical Subject Headings]Physical activity:Check Tags::Male [Medical Subject Headings]Dietética y nutrición030209 endocrinology & metabolismbody mass index:Health Care::Health Services Administration::Organization and Administration::Professional Practice::Referral and Consultation [Medical Subject Headings]Articlemetabolic syndrome03 medical and health sciencesHumansHigh body mass indexExerciseAged:Geographical Locations::Geographic Locations::Europe::Spain [Medical Subject Headings]Health related quality of lifebusiness.industryíndice de masa corporallcsh:RPublic Health Environmental and Occupational Health:Persons::Persons::Age Groups::Adult::Middle Aged [Medical Subject Headings]Physical fitnessmedicine.diseaseObesity:Diseases::Nutritional and Metabolic Diseases::Nutrition Disorders::Overnutrition::Obesity [Medical Subject Headings]Cross-Sectional Studies:Check Tags::Female [Medical Subject Headings]:Phenomena and Processes::Musculoskeletal and Neural Physiological Phenomena::Musculoskeletal Physiological Phenomena::Musculoskeletal Physiological Processes::Movement::Motor Activity::Exercise [Medical Subject Headings]calidad de vidaQuality of LifePhysical activity.Metabolic syndromebusinessBody mass indexestudios transversalesDemographyCondició física
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A central nervous system-focused treatment approach for people with frozen shoulder: protocol for a randomized clinical trial

2019

Background: Frozen shoulder (FS) is a musculoskeletal condition of poorly understood etiology that results in shoulder pain and large mobility deficits. Despite some physical therapy interventions, such as joint mobilization and exercise, having shown therapeutic benefit, a definitive treatment does not currently exist. The aim of this study will be to compare the effectiveness of a central nervous system (CNS)-directed treatment program versus a standard medical and physical therapy care program on outcomes in participants with FS. Methods/design: The study is a two-group, randomized clinical trial with blinding of participants and assessors. Participants will be recruited via referrals fr…

Time FactorsJoint mobilizationDolor de hombro:Phenomena and Processes::Physical Phenomena::Time::Time Factors [Medical Subject Headings]Shoulder painShoulder adhesive capsulitisPsychological interventionMedicine (miscellaneous)law.invention:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]Disability EvaluationStudy ProtocolDiscrimination Psychological0302 clinical medicineRandomized controlled trialFeedback Sensorylaw:Analytical Diagnostic and Therapeutic Techniques and Equipment::Therapeutics::Physical Therapy Modalities [Medical Subject Headings]:Diseases::Musculoskeletal Diseases::Joint Diseases::Bursitis [Medical Subject Headings]Pharmacology (medical)030212 general & internal medicineRange of Motion ArticularPhysiotherapyFisioterapiaRandomized Controlled Trials as Topic:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Clinical Trials as Topic::Controlled Clinical Trials as Topic::Randomized Controlled Trials as Topic [Medical Subject Headings]lcsh:R5-920Shoulder JointFrozen shoulder:Analytical Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Disability Evaluation [Medical Subject Headings]Treatment OutcomeCohortlcsh:Medicine (General):Anatomy::Musculoskeletal System::Skeleton::Joints::Shoulder Joint [Medical Subject Headings]medicine.medical_specialtyBlindingSensationContext (language use)03 medical and health sciencesBursitismedicineHumansPhysical Therapy Modalities:Analytical Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Prognosis::Treatment Outcome [Medical Subject Headings]:Geographical Locations::Geographic Locations::Europe::Spain [Medical Subject Headings]:Anatomy::Nervous System::Central Nervous System [Medical Subject Headings]business.industry:Analytical Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Physical Examination::Range of Motion Articular [Medical Subject Headings]Recovery of FunctionCapsulitismedicine.disease:Phenomena and Processes::Biological Phenomena::Recovery of Function [Medical Subject Headings]Sistema nervioso central:Phenomena and Processes::Musculoskeletal and Neural Physiological Phenomena::Nervous System Physiological Phenomena::Nervous System Physiological Processes::Sensation [Medical Subject Headings]SpainCentral nervous systemOrthopedic surgeryShoulder adhesivePhysical therapy:Phenomena and Processes::Physiological Phenomena::Physiological Processes::Homeostasis::Feedback Physiological::Feedback Sensory [Medical Subject Headings]business030217 neurology & neurosurgery
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