Sample Selection Bias
Mostrando 1-12 de 38 artigos, teses e dissertações.
-
1. Mental health interventions for suicide prevention among indigenous adolescents: a systematic review
ABSTRACT BACKGROUND: The legacies of colonization and of policies of forced assimilation continue to be a cause of intergenerational trauma, manifested through feelings of marginality, depression, anxiety and confusion, which place indigenous peoples at increased risk of suicide. OBJECTIVES: To assess the quality, content, delivery and effectiveness of int
Sao Paulo Medical Journal. Publicado em: 2022
-
2. Detecting the extent of control over selection bias relating to oral health and otorhinolaryngology: cross-sectional study
ABSTRACT BACKGROUND: The authors of randomized controlled trials will usually claim that they have met the randomization process criterion. However, sequence generation schemes differ and some schemes that are claimed to be randomized are not genuinely randomized. Even less well understood, and often more difficult to ascertain, is whether the allocation w
Sao Paulo Med. J.. Publicado em: 2020-06
-
3. BARIATRIC SURGERY AND BINGE EATING DISORDER: SHOULD SURGEONS CARE ABOUT IT? A LITERATURE REVIEW OF PREVALENCE AND ASSESSMENT TOOLS
RESUMO CONTEXTO: Os transtornos alimentares entre os candidatos à cirurgia bariátrica são comuns e estão associados a resultados cirúrgicos adversos, incluindo recuperação de peso e baixa qualidade de vida. No entanto, sua avaliação é difícil pela grande variedade e uso inconsistente de métodos de avaliação padronizados. OBJETIVO: O objetiv
Arq. Gastroenterol.. Publicado em: 20/05/2019
-
4. Quantitative genetics theory for genomic selection and efficiency of genotypic value prediction in open-pollinated populations
ABSTRACT: Quantitative genetics theory for genomic selection has mainly focused on additive effects. This study presents quantitative genetics theory applied to genomic selection aiming to prove that prediction of genotypic value based on thousands of single nucleotide polymorphisms (SNPs) depends on linkage disequilibrium (LD) between markers and QTLs, assu
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-02
-
5. The Impact of Dysphagia Therapy on Quality of Life in Patients with Parkinson's Disease as Measured by the Swallowing Quality of Life Questionnaire (SWALQOL)
Abstract Introduction Dysphagia is a common symptom in Parkinson's disease (PD) and it has been associated with poor quality of life (QoL), anxiety, depression. Objective The aim of this study was to evaluate the quality of life in individuals with PD before and after SLP therapy. Methods The program consisted of four individual therapy sessions. Each
Int. Arch. Otorhinolaryngol.. Publicado em: 2016-09
-
6. Pilates for low back pain
ABSTRACT BACKGROUND: Non-specific low back pain is a major health problem worldwide. Interventions based on exercises have been the most commonly used treatments for patients with this condition. Over the past few years, the Pilates method has been one of the most popular exercise programmes used in clinical practice. OBJECTIVES: To determine the effects
Sao Paulo Med. J.. Publicado em: 2016-08
-
7. Yoga for asthma
ABSTRACT BACKGROUND: Asthma is a common chronic inflammatory disorder affecting about 300 million people worldwide. As a holistic therapy, yoga has the potential to relieve both the physical and psychological suffering of people with asthma, and its popularity has expanded globally. A number of clinical trials have been carried out to evaluate the effects
Sao Paulo Med. J.. Publicado em: 2016-08
-
8. Oral treatments for fungal infections of the skin of the foot
BACKGROUND: About 15% of the world population have fungal infections of the feet (tinea pedis or athlete's foot). There are many clinical presentations of tinea pedis, and most commonly, tinea pedis is seen between the toes (interdigital) and on the soles, heels, and sides of the foot (plantar). Plantar tinea pedis is known as moccasin foot. Once acquired,
Sao Paulo Med. J.. Publicado em: 2014
-
9. Reavaliando a relação entre independência do Banco Central e custos de desinflação: uma análise de viés de seleção / Reassessing the relationship between Central Bank independence and disinflation costs: a selection bias analysis
The majority of the empirical literature about the effects of central bank independence on disinflation costs found a positive relationship between these variables, meaning that more costly disinflationary episodes are related to countries with more independent central banks, opposing to the new classical theory, which states that there is a credibility prem
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/11/2012
-
10. Alterações metabólicas cerebrais associadas aos fatores de risco cardiovascular: um estudo de tomografia por emissão de pósitron (PET) / Abnormalities on brain metabolism associated to cardiovascular risk factors: a positron emission tomography (PET) study
INTRODUCTION: Cardiovascular risk factors (CVRF) are known to affect cerebral blood flow, possibly contributing to cognitive decline and to the emergence of Alzheimers disease (AD), the commonest form of dementia. Positron emission tomography (PET) with 18-fluoro-2-deoxyglucose (18FFDG) has been widely used to demonstrate specific patterns of reduced brain g
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/12/2011
-
11. Retornos da escolaridade no Brasil e regiões / Return to schooling in Brazil and regions
One of the determinants of economic development of a nation is human capital, being education a crucial factor in the composition of this process. Given the relevance of the issue, a large number of papers in the literature has focused attention on determining the returns to schooling. There is, however, in the national literature, the predominance of studie
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/06/2011
-
12. Mendelian breeding units versus standard sampling strategies: mitochondrial DNA variation in southwest Sardinia
We report a sampling strategy based on Mendelian Breeding Units (MBUs), representing an interbreeding group of individuals sharing a common gene pool. The identification of MBUs is crucial for case-control experimental design in association studies. The aim of this work was to evaluate the possible existence of bias in terms of genetic variability and haplog
Genetics and Molecular Biology. Publicado em: 2011