|
|
|
| Registros recuperados: 89 | |
|
|
| Lyra,Andre C.; Santana,Genoile; Santana,Nelma; Silvany-Neto,Anibal; Magalhães,Emilia; Pereira,Eduardo M.; Mascarenhas,Ramiro; Lyra,Marcos C.; Veiga,Andrea; Ferreira,Karina; Zaterka,Schilioma; Lyra,Luiz G.. |
| Helicobacter pylori plays an important role in the etiology of peptic ulcer disease. Its prevalence appears to be higher in developing countries. We evaluated the seroprevalence of H. pylori and risk factors associated with infection in voluntary blood donors who attended the main blood center of the city of Salvador, Brazil. The subjects responded to an epidemiological questionnaire, with information about sex, age, race, lifestyle, social-economic level indicators, and residence and hygiene conditions. Anti-H. pylori antibody was determined by ELISA (Cobas Core, Roche). Three hundred and seven subjects were included in the study. Anti-H. pylori antibody results were indeterminate in 33 individuals (10.8%), who were excluded from analysis. Among the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: H. pylori; Seroprevalence; Risk factors; Brazil. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702003000500009 |
| |
|
| |
|
|
| Lobato,M.I.; Belmonte-de-Abreu,P.; Knijnik,D.; Teruchkin,B.; Ghisolfi,E.; Henriques,A.. |
| The authors review environmental and neurodevelopmental risk factors for schizophrenic disorders, with emphasis on minor physical anomalies, particularly craniofacial anomalies and dermatoglyphic variations. The high prevalence of these anomalies among schizophrenic subjects supports the neurodevelopmental theory of the etiology of schizophrenia, since they suggest either genetically or epigenetically controlled faulty embryonic development of structures of ectodermal origin like brain and skin. This may disturb neurodevelopment that in turn may cause these subjects to be at increased risk for the development of schizophrenia and related disorders. The precise confirmation of this theory, at least in some cases, will provide further understanding of these... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Schizophrenia; Neurodevelopmental disorder; Risk factors. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000200002 |
| |
|
| |
|
| |
|
|
| Ribeiro,V.S.; Figueiredo,F.P.; Silva,A.A.M.; Bettiol,H.; Batista,R.F.L.; Coimbra,L.C.; Lamy,Z.C.; Barbieri,M.A.. |
| The objective of the present study was to investigate factors associated with cesarean sections in two cities located in different regions of Brazil and to determine factors that explain the higher cesarean section rate in the more developed city, Ribeirão Preto, compared to the less developed one, São Luís. Data from two cohort studies comprising 2846 women in Ribeirão Preto in 1994, and 2443 women in São Luís in 1997/1998 were used. Adjusted and non-adjusted risk estimates were calculated using a Poisson regression model. The cesarean section rate was 33.7% in São Luís and 50.8% in Ribeirão Preto. Adjusted analysis in a joint sequential model revealed a 51% higher risk of cesarean section in Ribeirão Preto compared to São Luís (prevalence rate ratio... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cesarean section; Epidemiology; Obstetrics; Health services; Risk factors. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000900008 |
| |
|
|
| Ribeiro,D.D.; Lijfering,W.M.; Barreto,S.M.; Rosendaal,F.R.; Rezende,S.M.. |
| Venous thrombosis, including deep vein thrombosis and pulmonary embolism, is a common disease that frequently recurs. Recurrence can be prevented by anticoagulants, but this comes at the risk of bleeding. Therefore, assessment of the risk of recurrence is important to balance the risks and benefits of anticoagulant treatment. This review briefly outlines what is currently known about the epidemiology of recurrent venous thrombosis, and focuses in more detail on potential new risk factors for venous recurrence. The general implications of these findings in patient management are discussed. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Recurrent venous thrombosis; Epidemiology; Risk factors. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000100001 |
| |
|
| |
|
|
| Manfroi,W.C.; Zago,A.J.; Cruz,R.; Oliveira,J.; Kirschnick,L.S.; Ordovás,K.; Candiago,R.H.; Souza,J.; Ribeiro,L.W.; Leitão,C.; Brizolara,M.L.. |
| Many clinical and epidemiological studies have demonstrated the relationship between serum ferritin and ischemic heart disease. In the present study we evaluated the relationship between coronary heart disease (CHD) and serum ferritin levels in patients submitted to coronary arteriography. We evaluated 307 patients (210 (68.7%) males; median age: 60 years) who were submitted to coronary angiography, measurement of serum ferritin and identification of clinical events of ischemic heart disease. Serum ferritin is reported as quartiles. Ninety-six patients (31.27%) had normal coronary angiography (group 1) and 211 (68.73%) had coronary heart disease (group 2). Of the patients with CHD, 61 (28.9%) had serum ferritin levels higher than 194 ng/ml (4th quartile),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ferritin; Coronary heart disease; Atherosclerosis; Risk factors; Coronary arteriography. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000300009 |
| |
|
|
| Medeiros,M.M.C.; Silveira,V.A.L.; Menezes,A.P.T.; Carvalho,R.C.. |
| The aim of the present study was to identify the risk factors for ovarian failure in patients with systemic lupus erythematosus. Seventy-one women aged 17 to 45 years with systemic lupus erythematosus were studied. Patients were interviewed and their medical records reviewed. Demographic characteristics, clinical and serologic profiles, and menstrual and obstetric histories were recorded. Disease activity was measured by the systemic lupus erythematosus disease activity index. Serum FSH, LH, estradiol, progesterone, TSH, prolactin, and antimicrosomal and antithyroglobulin antibodies were measured. Patients who developed ovarian failure were compared to those who did not. Ovarian failure occurred in 11 patients (15.5%) and nine had premature menopause... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ovarian failure; Systemic lupus erythematosus; Risk factors; Cyclophosphamide; Premature menopause. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001001200008 |
| |
|
|
| Vigo,A.; Duncan,B.B.; Schmidt,M.I.; Couper,D.; Heiss,G.; Pankow,J.S.; Ballantyne,C.M.. |
| To efficiently examine the association of glutamic acid decarboxylase antibody (GADA) positivity with the onset and progression of diabetes in middle-aged adults, we performed a case-cohort study representing the ~9-year experience of 10,275 Atherosclerosis Risk in Communities Study participants, initially aged 45-64 years. Antibodies to glutamic acid decarboxylase (GAD65) were measured by radioimmunoassay in 580 incident diabetes cases and 544 non-cases. The overall weighted prevalence of GADA positivity (³1 U/mL) was 7.3%. Baseline risk factors, with the exception of smoking and interleukin-6 (P £ 0.02), were generally similar between GADA-positive and -negative individuals. GADA positivity did not predict incident diabetes in multiply adjusted (HR =... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diabetes mellitus; Glutamic acid decarboxylase; Auto-immune diseases; Inflammation; Risk factors. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000700007 |
| |
|
|
| Barros,E.R.; Kasamatsu,T.S.; Ramalho,A.C.; Hauache,O.M.; Vieira,J.G.H.; Lazaretti-Castro,M.. |
| Osteoporosis is a multifactorial disease with great impact on morbidity and mortality mainly in postmenopausal women. Although it is recognized that factors related to life-style and habits may influence bone mass formation leading to greater or lower bone mass, more than 85% of the variation in bone mineral density (BMD) is genetically determined. The collagen type I alpha 1 (COLIA1) gene is a possible risk factor for osteoporosis. We studied a population of 220 young women from the city of São Paulo, Brazil, with respect to BMD and its correlation with both COLIA1 genotype and clinical aspects. The distribution of COLIA1 genotype SS, Ss and ss in the population studied was 73.6, 24.1 and 2.3%, respectively. No association between these genotypes and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: COLIA1; Bone mineral density; Risk factors; Polymorphism; Osteoporosis. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000800005 |
| |
|
|
| Santos,K.G.; Tschiedel,B.; Schneider,J.R.; Souto,K.E.P.; Roisenberg,I.. |
| Diabetic retinopathy (DR) is a sight-threatening chronic complication of diabetes mellitus and is the leading cause of acquired blindness in adults. In this cross-sectional study, we investigated the prevalence of and the factors associated with DR in an analysis of 210 consecutive and unrelated Brazilian Caucasians with type 2 diabetes mellitus. Retinopathy was evaluated by ophthalmoscopy and/or biomicroscopy through dilated pupils. The relationship between clinical and metabolic variables and the presence of DR was assessed by logistic regression analysis. DR was detected in 99 of the 210 patients (47%). In the univariate logistic regression analyses, male sex, duration of diabetes, body mass index, glycated hemoglobin, C-peptide, LDL cholesterol,... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Diabetic retinopathy; Type 2 diabetes mellitus; Risk factors; Caucasian subjects. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000200010 |
| |
|
| |
|
|
| Mataloun,S.E.; Machado,F.R.; Senna,A.P.R.; Guimarães,H.P.; Amaral,J.L.G.. |
| The objective of the present study was to assess the incidence, risk factors and outcome of patients who develop acute renal failure (ARF) in intensive care units. In this prospective observational study, 221 patients with a 48-h minimum stay, 18-year-old minimum age and absence of overt acute or chronic renal failure were included. Exclusion criteria were organ donors and renal transplantation patients. ARF was defined as a creatinine level above 1.5 mg/dL. Statistics were performed using Pearsons' chi2 test, Student t-test, and Wilcoxon test. Multivariate analysis was run using all variables with P < 0.1 in the univariate analysis. ARF developed in 19.0% of the patients, with 76.19% resulting in death. Main risk factors (univariate analysis) were:... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acute renal failure; Risk factors; Prognostic factors; Intensive care unit; Mortality. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006001000010 |
| |
|
| |
|
|
| Ribeiro,V.S.; Figueiredo,F.P.; Silva,A.A.M.; Batista,R.L.F.; Barbieri,M.A.; Lamy Filho,F.; Alves,M.T.S.S.B.; Santos,A.M.; Bettiol,H.. |
| The prevalence of smoking during pregnancy in Ribeirão Preto, a rich Brazilian city, was significantly higher (21.4%) than in São Luís (5.9%), a less developed city. To assess which variables explain the difference in prevalence of smoking during pregnancy, data from two birth cohorts were used, including 2846 puerperae from Ribeirão Preto, in 1994, and 2443 puerperae from São Luís, in 1997/98. In multivariable analysis, risk of maternal smoking during pregnancy was higher in São Luís for mothers living in a household with five or more persons (OR = 1.72, 95%CI = 1.12-2.64), aged 35 years or older (OR = 1.98, 95%CI = 0.99-3.96), who had five or more children (OR = 2.10, 95%CI = 1.16-3.81), and whose companion smoked (OR = 2.20, 95%CI = 1.52-3.18). Age of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Smoking; Pregnancy; Risk factors; Perinatal complications; Placenta previa. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000900007 |
| |
|
|
| Lima,S.G.; Albuquerque,M.F.P.M.; Oliveira,J.R.M.; Ayres,C.F.J.; Cunha,J.E.G.; Oliveira,D.F.; Lemos,R.R.; Souza,M.B.R.; Silva,O. Barbosa e. |
| Exaggerated blood pressure response (EBPR) during the exercise treadmill test (ETT) has been considered to be a risk factor for hypertension. The relationship of polymorphisms of the renin-angiotensin system gene with hypertension has not been established. Our objective was to evaluate whether EBPR during exercise is a clinical marker for hypertension. The study concerned a historical cohort of normotensive individuals. The exposed individuals were those who presented EBPR. At the end of the observation period (41.7 months = 3.5 years), the development of hypertension was analyzed within the two groups. Genetic polymorphisms and blood pressure behavior were assessed as independent variables, together with the classical risk factors for hypertension. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hypertension; Risk factors; Exaggerated blood pressure response. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013000400368 |
| |
|
| |
|
| |
| Registros recuperados: 89 | |
|
|
|
