5 resultados para Minimização do chi-quadrado

em Repositório Institucional da Universidade Federal do Rio Grande do Norte


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A associação entre fatores de risco cardiovascular (FRCV) na pósmenopausa e o antecedente de irregularidade menstrual no menacme foi avaliado em estudo caso-controle envolvendo 414 mulheres na pósmenopausa com idade de 60,4 ± 5,5 anos e IMC de 25,3 ± 4,7 kg/m2. As variáveis consideradas foram: caracterização do ciclo menstrual entre 20 e 35 anos (independente) e relato atual sobre ocorrência de hipertensão arterial, dislipidemia, diabetes mellitus e doença arterial coronariana (dependentes). Utilizou-se o teste qui-quadrado e modelos de regressão logística, ajustados para outras variáveis implicadas no risco para doenças CV, com nível de significância 5%. Observou-se que mulheres que relataram irregularidade menstrual prévia estiveram associadas com risco aumentado para ocorrência de algum FRCV [odds ratio ajustado (OR)= 2,14; IC-95%= 1,02–4,48], quando comparadas àquelas com ciclos regulares. Análise estratificada demonstrou as seguintes associações significativas com o antecedente de irregularidade menstrual: hipertensão arterial (OR= 2,4; 95% IC= 1,39–5,41), hipercolesterolemia (OR= 2,32; 95% IC= 1,17–4,59), hipertrigliceridemia (OR= 2,09; 95% IC= 1,10–4,33) e angioplastia coronariana (OR= 6,82; 95% IC= 1,44–32,18). Os dados sugerem que o antecedente de irregularidade menstrual, indicativo da ocorrência da síndrome dos ovários policísticos na idade reprodutiva, pode estar relacionado com aumento do risco para doenças CV na pós-menopausa __________________________________________________ABSTRACT Menstrual Cycle Irregularity as a Marker of Cardiovascular Risk Factors at Postmenopausal Years.To evaluate the association between cardiovascular risk factors (CVRF)during postmenopausal years and previous menstrual irregularity during reproductive years, we performed a case-control study in 414 postmenopausal women (mean age 60.4 ± 5.5 years; BMI 25.3 ± 4.7 kg/m2). The variables assessed were: menstrual cycle characteristics at age 20–35y (independent) and records of arterial hypertension, dyslipidemia, diabetes mellitus, and coronary heart disease (dependent). Statistical analysis used the chi-square test and logistic regression, adjusting for potential confounders for cardiovascular risk, with significance set at 5%. Women reporting previous menstrual irregularity were associated with increased risk for some CVRF [adjusted odds ratio (OR) 2.14; CI-95%= 1.02–4.48], when compared with those reporting regular menstrual cycles. Stratified analysis demonstrated significant associations of previous menstrual irregularity with: arterial hypertension [OR= 2.74; CI-95%= 1.39–5.41), hypercholesterolemia (OR= 2.32; CI-95%= 1.17–4.59), hypertriglyceridemia (OR= 2.09; CI-95%=1.10–4.33), and coronary angioplasty (OR= 6.82; CI-95%= 1.44–32.18). These data suggest that a prior history of menstrual irregularity, as indicative of polycystic ovary syndrome, may be related to increased risk for CVD during postmenopausal years

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FERNANDES, Marcos Henrique; ROCHA, Vera Maria da; RONCALLI, Angelo Giuseppe. Fatores Associados à Prevalência de Sintomas Osteomusculares em Professores. Revista de salud pública, v. 11, n. 2, p. 256-267, 2009.

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O risco de quedas pode ser reconhecido como fenômeno ou diagnóstico de enfermagem. Pesquisas relacionam diretamente isquemias miocárdicas, como a angina instável e o risco de cair. Objetivou-se analisar o diagnóstico de enfermagem Risco de quedas na ocorrência de angina instável por um estudo transversal realizado em 57 indivíduos internados em um hospitalescola, mediante exame físico e formulário. Para o tratamento estatístico foram utilizados teste qui-quadrado, teste exato de Fisher, Mann-Whitney, teste-t e Coefi ciente Phi (p<0,05). O Risco de quedas foi o diagnóstico de enfermagem mais prevalente (87,71%), sobretudo em homens, mais velhos, com menos anos de estudo e renda inferior. Presença da angina instável, hipertensão arterial, medicação anti-hipertensiva, doença vascular, difi culdades visuais e insônia apresentaram associação com o diagnóstico de enfermagem Risco de quedas. Conclui-se que é imprescindível o desenvolvimento de parâmetros claros e objetivos à mensuração mais acurada do risco de quedas no âmbito hospitalar

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This study aimed to analyze the leadership style adopted by managers of nongovernmental organizations in the metropolitan region of Belem on the theory of Hersey and Blanchard. This theory is called situational leadership ranks E1, E2, E3, E4 and the styles of leadership and maturity in parallel classes M1, M2, M3 and M4. This study examined the relationship of leadership styles with the maturity of work, identified the relationship of leadership styles as related to psychological maturity and job maturity and psychological maturity. The main objectives were to analyze and relate leadership styles with the maturity of the leaders and understand the phenomenon of leadership from the self-perception of those who lead the organizations studied. To achieve the objectives we used a questionnaire already validated the theory of situational leadership and applied in 320 non-governmental organizations in the metropolitan region of Belem The methodology was quantitative, descriptive and exploratory. The analysis was by descriptive statistics and inferential statistics for univariate and bivariate form, applying the chi-square, the V Crammer and Spearman correlation. The data analysis shows safety, attested to the frequencies, and average margin of error and after application of the tests it was found that a relationship between the leadership style of work with the maturity and psychological maturity. The managers of nongovernmental organizations practicing various styles of leadership and focus on the quadrant of high maturity. It was diagnosed when the manager uses only one style of leadership was the predominance of E3 "share or support", which represents 24% of the sample. As uses two styles of leadership is the predominance of E3 and E2, which represents 76%. So the managers of nongovernmental organizations in the metropolitan region of Belem, practicing a style of leadership support, sharing ideas for decision making using a democratic style

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Although research in the field of performing arts has substantially advanced over the last century, the actor, in general, still needs a repertoire of specific references to guide or support his practice. But how the actor must work the material foundation of his art that is his own body? Starting from a prerogative of a idiosyncrasy that is part of theater, this study intend, from the description and reflection about one physical experience with the Tai Chi, to weave relations between this experience and the possible developments of acting preparation. This research is also aimed to highlight the elements of connection between the principles that rules Tai Chi and the body without organs, idealized by Artaud, with the perspective of pointing possible contributions for actors work. The work presented here refers to a qualitative study that considers the body experience in practice of Tai Chi as a reference to dialogue and reflect about the acting preparation. The process of acting preparation presupposes a constant redoing of the body by certain practices. My experience with Tai Chi within this research allowed me verify that the work from established body techniques could be a way of technical preparation for the actor. As the body conscience expands, Tai Chi promotes a greater freedom of creation and expression, giving the actor the possibility of experience the body without organs, the artistic equivalent of the daily body, present, conscious, the organic foundation of emotions, in wich it is possible the materiality of ideas