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1.
Psychol Med ; 46(2): 415-24, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26456404

RESUMO

BACKGROUND: Episodes of depression and anxiety (D&A) during the transition from late adolescence to adulthood, particularly when persistent, are predictive of long-term disorders and associated public health burden. Understanding risk factors at this time is important to guide intervention. The current objective was to investigate the associations between maternal symptoms of D&A with offspring symptoms during their transition to adulthood. METHOD: Data from a large population-based birth cohort study, in South Brazil, were used. Prospective associations between maternal D&A and offspring risk of these symptoms during the transition to adulthood (18/19, 24 and 30 years) were estimated. RESULTS: Maternal D&A in adolescence was associated with offspring symptoms across the transition to adulthood, associations were consistently stronger for females than for males. Daughters whose mothers reported D&A were 4.6 times (95% confidence interval 2.71-7.84) as likely to report D&A at all three time-points, than daughters of symptom-free mothers. CONCLUSIONS: Maternal D&A is associated with persistent D&A during the daughter's transition to adulthood. Intervention strategies should consider the mother's mental health.


Assuntos
Ansiedade/psicologia , Filho de Pais com Deficiência/psicologia , Depressão/psicologia , Mães , Adolescente , Adulto , Brasil , Estudos de Coortes , Feminino , Desenvolvimento Humano , Humanos , Masculino , Estudos Prospectivos , Fatores Sexuais , Adulto Jovem
2.
J Psychiatr Ment Health Nurs ; 25(1): 3-13, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28892271

RESUMO

WHAT IS KNOWN ON THE SUBJECT?: Older individuals constitute an increasing proportion of the population, and therefore, are the major consumers of drugs. The elderly, especially those with mental disabilities, frequently develop chronic diseases and start using numerous drugs. Drug-drug interactions (DDIs) are a major clinical problem in the elderly population, and previous studies have focused only on antidepressants and others types of drugs used to treat mental health conditions. WHAT THIS ARTICLE ADDS TO EXISTING KNOWLEDGE?: This study shows that in hospitalized elderly patients with mental disorders (aged 60-69 years), polypharmacy (≥5 drugs) and the use of drugs that act on the cardiovascular, respiratory and nervous systems can lead to potential drug-drug interactions. Moreover, it was reported that the prevalence of drug-drug interactions in elderly patients with mental disorders was high during their hospitalization in a public hospital in Brazil. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: Nurses should know the factors associated with drug-drug interactions in hospitalized elderly patients with mental disorders to choose appropriate strategies for avoiding treatment failure and adverse events in patients. ABSTRACT: Introduction Despite the impact on patient safety and the fact that prevalence is higher in older patients, previous research did not analyse drug-drug interactions (DDIs) in view of nursing care of elderly psychiatric patients. Aim To identify potential drug-drug interactions and polypharmacy in prescriptions of aged inpatients with psychiatric disorders and analyse associated factors. Methods In this retrospective cross-sectional study, we analysed the medical records of institutionalized patients diagnosed with psychiatric disorders (n = 94), aged >60 years, and prescribed multiple medications. Drug prescriptions were checked at admission, midway through and the last prescription. Factors associated with DDI occurrence were assessed using multivariable logistic regression analysis. Results A DDI prevalence potential of 67.0%, 74.5% and 80.8% occurred in patients at admission, midway through hospitalization and the last prescription, respectively. Most of the prescribed drugs were nervous system agents. A high percentage of serious and contraindicated potential DDIs occurred. Age between 60 and 69 years, use of cardiovascular and respiratory system drugs, and the number of medications contributed significantly to DDI. Implications for mental health nursing Knowledge on the factors associated with DDIs in patients with mental disorders can contribute to the improvement of effectiveness and safety of nursing care.


Assuntos
Interações Medicamentosas , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/epidemiologia , Hospitalização/estatística & dados numéricos , Hospitais Públicos/estatística & dados numéricos , Transtornos Mentais/tratamento farmacológico , Polimedicação , Idoso , Brasil/epidemiologia , Feminino , Humanos , Masculino , Estudos Retrospectivos
3.
Arch Intern Med ; 157(12): 1362-8, 1997 Jun 23.
Artigo em Inglês | MEDLINE | ID: mdl-9201011

RESUMO

BACKGROUND: Several risk factors for male-to-female human immunodeficiency virus (HIV) transmission are well established, but few studies have examined the role of postcoital vaginal bleeding. METHODS: Couples recruited from AIDS centers in Rio de Janeiro, Brazil, were interviewed for risk factors and had blood collected for examinations. Eligibility criteria included confirmed HIV positivity for the male partner, aged 18 years of older, heterosexual contact in the past year, and no other risk factor for female partners except sexual contact with the HIV-infected male partner. Logistic regression was used to assess the association between HIV serostatus and risk factors in the female partners. RESULTS: The prevalence of HIV infection was 47.6% among the 418 women available for analysis. The following factors were independently associated with HIV infection; anal sex (odds ratio [OR], 3.06), condom use during vaginal sex sometimes (OR, 1.42) and rarely to never (OR, 2.00) compared with always, frequency of sexual contacts (> 100 in the previous year) (OR, 1.71), HIV-infected male partners with symptoms of acquired immunodeficiency syndrome (OR, 1.70), and postcoital vaginal bleeding (OR, 1.89). The association of postcoital bleeding and HIV infection was more pronounced among women who did not engage in anal sex. CONCLUSIONS: The results support previous studies showing that advanced HIV infection in the male partner, anal sex, inconsistent condom use, and frequent sex are associated with HIV infection among the female partners of HIV-infected men. Postcoital vaginal bleeding was also identified as a risk factor for infection. In addition to other established preventive measures, a recommendation for seeking diagnosis and treatment of sexually transmitted diseases that are associated with postcoital bleeding and using water-soluble lubricants during sex to minimize trauma seems prudent.


Assuntos
Coito , Infecções por HIV/transmissão , Hemorragia/complicações , Comportamento Sexual , Doenças Vaginais/complicações , Adulto , Brasil , Feminino , Humanos , Masculino , Razão de Chances , Prevalência , Fatores de Risco , Sexualidade
4.
AIDS ; 6(5): 483-7, 1992 May.
Artigo em Inglês | MEDLINE | ID: mdl-1616654

RESUMO

OBJECTIVE: Little has been published about the length and determinants of survival for persons with AIDS in developing countries. This study examined the survival experience of Brazilian AIDS patients from 1982 to 1989. DESIGN: A retrospective cohort study involving record review of reported AIDS cases. METHODS: We obtained information about 2135 adult AIDS patients in Brazil. Local health officials supplied data regarding demographic and clinical characteristics and length of survival. Statistical techniques of survival analysis were applied. RESULTS: Median survival was 5.1 months, much shorter than in developed countries, and there was no improvement in survival for cases diagnosed more recently. Younger patients and those in the intravenous drug use exposure category lived longer than other AIDS patients. Those presenting with Kaposi's sarcoma, esophageal candidiasis, and tuberculosis fared relatively well, while those presenting with multiple diagnoses or toxoplasmosis did more poorly. CONCLUSIONS: These results tend to confirm the predictors of AIDS survival previously reported from developed countries and to document the poor survival of AIDS patients in the developing world.


Assuntos
Síndrome da Imunodeficiência Adquirida/mortalidade , Adolescente , Adulto , Brasil/epidemiologia , Feminino , Humanos , Masculino , Análise de Sobrevida
5.
J Acquir Immune Defic Syndr (1988) ; 6(9): 1008-12, 1993 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-8340889

RESUMO

We studied 567 patients with active pulmonary tuberculosis (APT) in Rio de Janeiro, Brazil, by using a standardized questionnaire and by testing blood for HIV antibodies. The rate of HIV infection was 3.9% in 1987, 4.8% in 1988, and 5.2% in 1989, and did not differ by sex. It was highest (7.4%) in the 15- to 39-year age group. There was no difference between patients infected and not infected by HIV with regard to education, income, housing, or employment. Among all patients with definite HIV risk behavior, the HIV infection rate was 23.3%, rising to 31.2% among homo/bisexual men and 36.4% among intravenous drug users, and the rate was 6.5% for blood-transfusion recipients. Among patients who denied risk behavior, the rate was 1.2%. Generalized lymphadenopathy and oral candidiasis occurred with greater frequency among HIV-infected patients (p < 0.0001). Applying the World Health Organization 1985 clinical criteria and revised case definition for AIDS, we found, respectively, sensitivities of 34% and 76.9% and specificities of 31% and 26.3%; in the Rio de Janeiro environment, these clinical criteria without HIV serology should not be adopted for tuberculosis patients. For chest radiographs, a significant association was found between HIV infection and the occurrence of atypical images (p = 0.0001), and hilar and/or mediastinal adenopathy (p = 0.0002) and absence of cavities (p = 0.0003). A PPD (purified protein derivative) skin test induration of < 5 mm was identified in 53% of the HIV-positive cases and in 31.3% of the HIV-negative cases. Only 11.5% of HIV-infected APT patients met the Centers for Disease Control 1987 AIDS criteria.


Assuntos
Infecções por HIV/epidemiologia , Tuberculose Pulmonar/complicações , Adolescente , Adulto , Fatores Etários , Idoso , Transfusão de Sangue , Brasil/epidemiologia , Candidíase Bucal/complicações , Feminino , Anticorpos Anti-HIV/sangue , Infecções por HIV/complicações , Comportamentos Relacionados com a Saúde , Homossexualidade , Humanos , Pulmão/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Prevalência , Radiografia , Fatores de Risco , Sensibilidade e Especificidade , Abuso de Substâncias por Via Intravenosa/complicações , Inquéritos e Questionários , Teste Tuberculínico , Tuberculose Pulmonar/diagnóstico por imagem
6.
AIDS Res Hum Retroviruses ; 10(5): 569-76, 1994 May.
Artigo em Inglês | MEDLINE | ID: mdl-7522493

RESUMO

Viral DNA sequences were determined over the V3 region of env from 28 infected individuals living in the high HIV-1 prevalence Brazilian cities of Rio de Janeiro and São Paulo. Twenty-six belonged to envelope sequence subtype B, prevalent in North America and Europe, and one was classified as subtype F, found recently in Brazil and in Romania (one appeared to be a B/F recombinant). Octameric sequences at the tip of the subtype B V3 loops were variable and distinct from those prevalent in North America and Europe. The GPGR motif, prevalent in North American/European strains, was found in only 8 (28.5%) sequences, whereas GWGR was found in 12 (43%) and novel sequences in 8 (28.5%). Brazilian subtype B sequences also diverged from the consensus North American/European strains over the remainder of the V3 loop. These results suggest that Brazilian HIV-1 B strains may have important antigenic differences from prototype subtype B strains currently being evaluated for use in HIV vaccines. These results should be taken into account for future vaccine programs in Brazil.


Assuntos
Proteína gp120 do Envelope de HIV/genética , Infecções por HIV/microbiologia , HIV-1/genética , HIV-1/isolamento & purificação , Fragmentos de Peptídeos/genética , Polimorfismo Genético , Vacinas contra a AIDS/isolamento & purificação , Sequência de Aminoácidos , Sequência de Bases , Brasil , Primers do DNA/genética , DNA Viral/genética , Feminino , Genes env , HIV-1/classificação , Humanos , Masculino , Dados de Sequência Molecular , Filogenia , Reação em Cadeia da Polimerase , RNA/genética , Homologia de Sequência de Aminoácidos
7.
Hum Pathol ; 20(2): 193-5, 1989 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-2536633

RESUMO

This is the first case described of an adenoid cystic carcinoma of trachea metastatic to the placenta. An immunohistochemical study is reported as well as a brief review of the literature.


Assuntos
Carcinoma Adenoide Cístico/secundário , Doenças Placentárias/patologia , Complicações Neoplásicas na Gravidez , Neoplasias da Traqueia/patologia , Adulto , Carcinoma Adenoide Cístico/patologia , Feminino , Humanos , Imuno-Histoquímica , Gravidez
8.
Am J Trop Med Hyg ; 27(2 Pt 1): 350-3, 1978 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-347959

RESUMO

By the indirect immunoperoxidase radial immunodiffusion technique the IgG and IgM contents in serum and filter paper eluates were found to remain essentially at equivalent levels for at least 2.5 months after collection.


Assuntos
Imunoglobulina G/análise , Imunoglobulina M/análise , Humanos , Técnicas Imunoenzimáticas
9.
Am J Trop Med Hyg ; 30(5): 942-7, 1981 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-6792937

RESUMO

Areas where mucocutaneous leishmaniasis, kala-azar and Chagas' disease are prevalent often overlap in Latin America. Due to a variable degree of cross-reactivity between the three etiological agents and antibodies synthesized during the course of the disease, a test able to distinguish between them is greatly needed. Saline-extracted antigen from live Trypanosoma cruzi epimastigotes behaved towards Chagas' disease sera in immunoenzymatic assays (ELISA) with the same specificity and sensitivity as the antigen used routinely for such tests. In tests using mucocutaneous leishmaniasis or kala-azar sera, the live T. cruzi antigen showed a much lower geometric mean titer (GMT) than the standard T. cruzi antigen. In ELISA tests with L. braziliensis antigen a higher GMT was seen with kala-azar sera than with those from cases of mucocutaneous leishmaniasis. Also, sera from Vale do Ribeira leishmaniasis showed higher GMT with an L. donovani antigen than with a homologous one. Such discrepancies were not seen in immunofluorescence tests employing the same sera and antigens.


Assuntos
Anticorpos/imunologia , Doença de Chagas/imunologia , Ensaio de Imunoadsorção Enzimática , Técnicas Imunoenzimáticas , Leishmaniose Mucocutânea/imunologia , Leishmaniose Visceral/imunologia , Imunofluorescência , Humanos , Leishmania/imunologia , Trypanosoma cruzi/imunologia
10.
Int J STD AIDS ; 12(5): 334-41, 2001 May.
Artigo em Inglês | MEDLINE | ID: mdl-11368809

RESUMO

A cross-sectional study was designed to assess safe sexual behaviour among heterosexual couples after the woman learned of her partner's infection with HIV. Female partners who had known their partners' serostatus for at least 4 weeks were eligible for participation. Couples were interviewed separately and independent predictors of safe sexual behaviour were identified using multiple logistic regression. Safe sexual behaviour was defined as no unprotected vaginal, oral, or anal intercourse. Of 328 women, 197 (60%) reported safe sexual behaviour since learning of their partners' infection. Significant independent predictors of safe sexual behaviour included older women (>30 years old) (odds ratio [OR]=1.89; 95% confidence intervals [CI]=1.01-3.51), current negative HIV serostatus (OR=2.72; 95% CI=1.50-4.94), advanced clinical stage of the index case (OR=1.96; 95% CI=1.07-3.59), longer duration of relationship (10+ years) (OR= 2.35; 95% CI=1.15-4.82), fewer sex contacts (<100) (OR=2.01; 95% CI=1.14-3.56), only one lifetime partner (OR=2.29; 95% CI=1.26-4.17), non-smoking (OR=2.67; 95% CI=1.43-4.99), not practising oral sex (OR=3.35; 95% CI=1.82-6.19) and previous HIV testing (OR=2.11; 95% CI=1.09-4.07). In addition, women who had known their partner's infection for longer were less likely to report safe sexual behaviour (P < 0.001). Our results indicate that among female partners of HIV-positive Brazilian men, learning of their partner's infection does not uniformly result in safe sexual behaviour. Counselling must emphasize disclosure of serostatus to female partners and target couples with short-term relationships, as well as those where the woman has known about her male partner's infection for a long time, because these are the least likely to maintain safe sexual behaviour.


Assuntos
Infecções por HIV/prevenção & controle , Sexo Seguro/psicologia , Parceiros Sexuais/psicologia , Adulto , Brasil , Estudos Transversais , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino
11.
Braz J Med Biol Res ; 36(6): 731-7, 2003 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-12792702

RESUMO

The position of the oxygen dissociation curve (ODC) is modulated by 2,3-diphosphoglycerate (2,3-DPG). Decreases in 2,3-DPG concentration within the red cell shift the curve to the left, whereas increases in concentration cause a shift to the right of the ODC. Some earlier studies on diabetic patients have reported that insulin treatment may reduce the red cell concentrations of 2,3-DPG, causing a shift of the ODC to the left, but the reports are contradictory. Three groups were compared in the present study: 1) nondiabetic control individuals (N = 19); 2) insulin-dependent diabetes mellitus (IDDM) patients (on insulin treatment) (N = 19); 3) non-insulin-dependent diabetes mellitus (NIDDM) patients using oral hypoglycemic agents and no insulin treatment (N = 22). The overall position of the ODC was the same for the three groups despite an increase of the glycosylated hemoglobin fraction that was expected to shift the ODC to the left in both groups of diabetic patients (HbA1c: control, 4.6%; IDDM, 10.5%; NIDDM, 9.0%). In IDDM patients, the effect of the glycosylated hemoglobin fraction on the position of the ODC appeared to be counterbalanced by small though statistically significant increases in 2,3-DPG concentration from 2.05 (control) to 2.45 mol/ml blood (IDDM). Though not statistically significant, an increase of 2,3-DPG also occurred in NIDDM patients, while red cell ATP levels were the same for all groups. The positions of the ODC were the same for control subjects, IDDM and NIDDM patients. Thus, the PO2 at 50% hemoglobin-oxygen saturation was 26.8, 28.2 and 28.5 mmHg for control, IDDM and NIDDM, respectively. In conclusion, our data question the idea of adverse side effects of insulin treatment on oxygen transport. In other words, the shift to the left reported by others to be caused by insulin treatment was not detected.


Assuntos
2,3-Difosfoglicerato/metabolismo , Trifosfato de Adenosina/metabolismo , Diabetes Mellitus Tipo 1/enzimologia , Diabetes Mellitus Tipo 2/enzimologia , Hemoglobinas Glicadas/metabolismo , Hipoglicemiantes/efeitos adversos , Insulina/efeitos adversos , Adulto , Idoso , Estudos de Casos e Controles , Diabetes Mellitus Tipo 1/tratamento farmacológico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Feminino , Hemoglobinas Glicadas/efeitos dos fármacos , Humanos , Hipoglicemiantes/uso terapêutico , Insulina/uso terapêutico , Masculino , Pessoa de Meia-Idade , Oxigênio/sangue , Oxigênio/metabolismo
12.
Rev Inst Med Trop Sao Paulo ; 32(2): 96-100, 1990.
Artigo em Inglês | MEDLINE | ID: mdl-2095632

RESUMO

Sera from 472 Brazilian subjects, confirmed to be either positive or negative for HIV antibodies and comprising the total clinical spectrum of HIV infection, were utilized in the evaluation of six commercially available enzyme-linked immunosorbent assays (ELISA), as well as of four alternative assays, namely indirect immunofluorescence (IIF), passive hemagglutination (PHA), dot blot and Karpas AIDS cell test. The sensitivities ranged from 100% (Abbott and Roche ELISA) to 84.2% (PHA) and the specificities ranged from 99.3% (IIF) to 80.2% (PHA). The sensitivity and specificity of the PHA and the sensitivity of the Karpas cell test were significantly lower than those of the other tests. Although the IFF and dot blot had good sensitivities and specificities, the six ELISA were more attractive than those tests when other parameters such as ease of reading and duration of assay were considered.


PIP: 6 commercially available ELISA kits and 4 new Brazilian made methods for detecting HIV were compared on 2 panels of sera, 292 from AIDS patients, HIV-positives and negatives, and 180 sera from asymptomatic blood donors, including 90 HIV-positives. The kits tested were 5 ELISAs: Roche Diagnostica (Basel), Hoechst Enzygnostic (Sao Paulo), Virgo Electronuclionics (Columbia MD), Organon Teknika (Boxtel, Netherlands), Salck Industria e Comercio de Produtos Biologicos (Sao Paulo), and a passive hemagglutination test, (Salck Ind), and indirect immunofluorescence IIF (Virgo electronucleonics, Columbia), a dot blot (Embrabio, Empressa Brasiliera de Biotecnologia Ltda, Sao Paolo) and Karpas AIDS cell test, Fujichemical Industries Ltd (Chokeiji, Takaoka, Japan). The sensitivities ranged from 84.2% to 100% with no significant differences in sera from panel A. In panel B, the sensitivity of the PHA test was significantly lower than that of the ELISA and the AIDS cell tests. The specificities of the PHA and the AIDS cell tests were also lower than that of the ELISA. The costs of all the tests were similar, but the equipment needs varied. The simplest tests to perform were the dot blot assay, PHA and Karpas AIDS cell test. The Hoechst ELISA is simpler because it does not require dilution of the serum. The dot takes too long for use in a blood bank, 16-18 hours. Immunofluorescence tests would be practical in countries already screening blood for malaria or Changes disease. Brazil is not doing so on a large scale due to lack of political will. In countries with high incidence of malaria, Chagas disease, leishmania, hepatitis and leprosy, HIV test need to be tested on local sera because of possible B cell activation.


Assuntos
Anticorpos Anti-HIV/análise , Western Blotting , Brasil , Ensaio de Imunoadsorção Enzimática , Estudos de Avaliação como Assunto , Imunofluorescência , Testes de Hemaglutinação , Humanos , Sensibilidade e Especificidade
13.
Rev Soc Bras Med Trop ; 26(2): 101-11, 1993.
Artigo em Português | MEDLINE | ID: mdl-8128069

RESUMO

A trend analysis of the AIDS epidemics in Brazil is presented, emphasizing temporal changes among the population groups most affected. Regional comparisons as well as projections of the extension of HIV infection and AIDS cases are also reported. Amongst the most relevant conclusions the alarming increase of cases in heterosexual populations and intravenous drug users is emphasised, specially in the southeast region.


Assuntos
Síndrome da Imunodeficiência Adquirida/epidemiologia , Infecções por HIV/epidemiologia , HIV-1 , Síndrome da Imunodeficiência Adquirida/transmissão , Adolescente , Adulto , Distribuição por Idade , Brasil/epidemiologia , Feminino , Infecções por HIV/transmissão , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Prevalência , Fatores de Risco , Distribuição por Sexo
14.
Rev Soc Bras Med Trop ; 34(2): 207-17, 2001.
Artigo em Português | MEDLINE | ID: mdl-11391445

RESUMO

The HIV/AIDS epidemic is a dynamic unstable global phenomenon, constituting a veritable mosaic of regional sub-epidemics. As a consequence of the deep inequalities that exist in Brazilian society, the spread of HIV infection has revealed an epidemic of multiple dimensions undergoing extensive epidemiological transformations. Initially restricted to large urban centers and markedly masculine, the HIV/AIDS epidemic is currently characterized by heterosexualization, feminization, interiorization and pauperization. The evolution of the profile of AIDS in Brazil is above all due to the geographical diffusion of the disease from large urban centers towards medium and small municipalities in the interior, to the increase in heterosexual transmission and the persistent growth of cases among injecting drug users. The increase in transmission through heterosexual contact has resulted in substantial growth of cases among women, which has been pointed out as the most important characteristic of the epidemic's current dynamic in Brazil.


Assuntos
Síndrome da Imunodeficiência Adquirida/epidemiologia , Infecções por HIV/epidemiologia , Síndrome da Imunodeficiência Adquirida/complicações , Adolescente , Adulto , Idoso , Brasil/epidemiologia , Criança , Feminino , Infecções por HIV/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Fatores Socioeconômicos
15.
Cad Saude Publica ; 16(4): 1133-6, 2000.
Artigo em Português | MEDLINE | ID: mdl-11175537

RESUMO

In Brazil, implementation of the so-called "Provão", or National Medical Course Examination, has raised numerous levels of discussion. This article aims to identify patterns in some of the more controversial issues: whether the Exam is really an instrument for evaluation of medical courses themselves, or that of future physicians; adequacy of assumptions underlying the questions as formulated; and lack of precision in the questions.


Assuntos
Educação Médica , Avaliação Educacional , Brasil , Estudos de Avaliação como Assunto , Humanos , Faculdades de Medicina
16.
Cad Saude Publica ; 16(## Suppl 1): 135-41, 2000.
Artigo em Português | MEDLINE | ID: mdl-10904396

RESUMO

This study estimates the number of HIV-infected individuals from 15 to 49 years of age in Brazil in 1998 based on sentinel population studies in pregnant women, with a selection bias in the sample. A principal components procedure was used to group 44 counties in homogeneous 13 clusters. Two indicators were constructed for each cluster: a) the logarithm of the accumulated AIDS incidence rate among women from 15 to 34 years of age (1996) and b) the logarithm of the growth ratio for the mean AIDS incidence rate for women from 15 to 34 years of age for the period from 1990-1992 to 1993-1996. Taking the log of the proportion of HIV-infected pregnant women as the dependent variable and the two above-mentioned indicators as the independent variables, a regression line was fitted to the aggregate data. Estimation of the model's parameters allowed us to calculate the proportion of infected individuals by macro-region, by age (15-34 and 35-49 years) and gender. The point estimate was 536 thousand HIV-infected adults with a 68% CI (470.689 - 603.305).


Assuntos
Infecções por HIV/epidemiologia , Síndrome da Imunodeficiência Adquirida/epidemiologia , Adolescente , Adulto , Brasil/epidemiologia , Feminino , Humanos , Modelos Lineares , Masculino , Pessoa de Meia-Idade , Gravidez , Prevalência
17.
Cad Saude Publica ; 16(## Suppl 1): 129-34, 2000.
Artigo em Português | MEDLINE | ID: mdl-10904395

RESUMO

This study proposes a procedure to estimate the number of orphans due to maternal AIDS. The procedure estimates the number of orphans by calendar year, multiplying the cumulative fertility rate by the number of AIDS deaths among women aged 15-49 years. Because the procedure refers to the number of children that are alive, the estimate is adjusted by contemplating the proportion of pediatric AIDS cases due to vertical transmission and the probability of survival in the 5-9-year age group. To estimate the number of AIDS orphans in Brazil from 1987 to 1999, the procedure was applied by stratifying according to geographical region, taking into account the differences in regional fertility rates, completeness of death reporting, and misclassification of AIDS-related deaths as due to other causes. The total number of cumulative AIDS orphans for 1987-99 was estimated at approximately 30,000.


Assuntos
Síndrome da Imunodeficiência Adquirida/mortalidade , Filho de Pais com Deficiência/estatística & dados numéricos , Mães/estatística & dados numéricos , Síndrome da Imunodeficiência Adquirida/transmissão , Adolescente , Adulto , Brasil/epidemiologia , Criança Abandonada , Feminino , Humanos , Transmissão Vertical de Doenças Infecciosas/estatística & dados numéricos , Pessoa de Meia-Idade , Gravidez , Taxa de Gravidez
18.
Cad Saude Publica ; 17(5): 1123-40, 2001.
Artigo em Português | MEDLINE | ID: mdl-11679888

RESUMO

This study uses a spatial-temporal model to analyze the spatial spread of the AIDS epidemic (adult cases) in the municipality of Rio de Janeiro, Brazil, during three periods: 1988-1990, 1991-1993, and 1994-1996. City districts were used as the geographic units of analysis. A spatial analysis was also performed for pediatric AIDS cases due to vertical HIV transmission, according to period of birth, 1985-90 and 1991-96. For total adult AIDS cases, the initial period was characterized by a polygonal cluster located around the harbor area, which expanded from west to east. Among homosexual cases, in situ growth predominated, and a decrease in the intensity of the diffusion process was observed from the second to the final period. Among heterosexual cases, the epidemic displayed a relevant geographic spread, mainly from 1988-1990 to 1991-1993. Among female cases in the final time period, a cluster of high incidence rates was found towards the northwest, including very poor areas. Among pediatric cases in 1991-1996, a significant correlation was found between AIDS incidence rates and poverty levels in the respective municipal districts. The results suggest that a more complete understanding of AIDS spatial-temporal dynamics can make a major contribution to preventive measures.


Assuntos
Síndrome da Imunodeficiência Adquirida/epidemiologia , Modelos Estatísticos , Conglomerados Espaço-Temporais , Síndrome da Imunodeficiência Adquirida/transmissão , Adulto , Brasil/epidemiologia , Surtos de Doenças , Feminino , Humanos , Incidência , Recém-Nascido , Transmissão Vertical de Doenças Infecciosas , Masculino , Gravidez
19.
Cad Saude Publica ; 16(## Suppl 1): 113-28, 2000.
Artigo em Português | MEDLINE | ID: mdl-10904394

RESUMO

A study of HIV-related risk behavior was carried out in 1998 among Brazilian military conscripts aged 17-20 years. A sample of 30,318 subjects was selected in three strata, pertaining to counties from: 1) the North and Central-West (N/CW); 2) South (S); and the states of Rio de Janeiro and São Paulo. HIV prevalence rates were estimated in all strata. The objective of this paper was to analyze the results according to differences in socioeconomic status (SES). The statistical analysis used an index of sexual risk behavior and logistic regression models. The N/CW stratum showed the worst indicators for SES, sexual risk behavior, and sexually transmitted infections (STIs), as well as the highest HIV seroprevalence rate. The best indicators for all variables were found in the RJ/SP stratum. The South showed intermediate results. Level of schooling also played a relevant role. In all three strata the conscripts with an incomplete high school education displayed the worst sexual risk behavior index, shown to be a relevant predictor of STI-related problems, including HIV infection.


Assuntos
Infecções por HIV , Militares , Assunção de Riscos , Adolescente , Adulto , Escolaridade , Infecções por HIV/prevenção & controle , Humanos , Renda , Masculino , Comportamento Sexual , Fatores Socioeconômicos , Inquéritos e Questionários
20.
Rev Saude Publica ; 23(4): 269-76, 1989 Aug.
Artigo em Português | MEDLINE | ID: mdl-2631180

RESUMO

The problem of the preparation of estimates of the total population of geographic subdivisions after the 1980 census is studied with a view to the tabulation on mortality data of Rio de Janeiro State (Brazil) by municipal districts and the estimation of regional mortality rates. In Brazil, the calculation of the official population estimates is undertaken by the Brazilian Institute of Geography and Statistics. The method employed to estimate the population of geographic subdivisions is known as the "AiBi method". This procedure is analysed and an alternative mathematical model is proposed that also satisfies the closure condition, that is, the projected values for the sum of the segments up to the total population projection. As an application of the proposed model, estimates of the population of the municipal districts of Rio de Janeiro State were prepared covering the period from 1981 to 1990.


Assuntos
Densidade Demográfica , Crescimento Demográfico , Projeção , Brasil , Humanos , Análise de Regressão
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