Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 26
Filtrar
1.
BMC Infect Dis ; 13: 522, 2013 Nov 06.
Artigo em Inglês | MEDLINE | ID: mdl-24192332

RESUMO

BACKGROUND: Although substantiated by little evidence, concerns about zidovudine-related anaemia in pregnancy have influenced antiretroviral (ARV) regimen choice for preventing mother-to-child transmission of HIV-1, especially in settings where anaemia is common. METHODS: Eligible HIV-infected pregnant women in Burkina Faso, Kenya and South Africa were followed from 28 weeks of pregnancy until 12-24 months after delivery (n = 1070). Women with a CD4 count of 200-500 cells/mm(3) and gestational age 28-36 weeks were randomly assigned to zidovudine-containing triple-ARV prophylaxis continued during breastfeeding up to 6-months, or to zidovudine during pregnancy plus single-dose nevirapine (sd-NVP) at labour. Additionally, two cohorts were established, women with CD4 counts: <200 cells/mm(3) initiated antiretroviral therapy, and >500 cells/mm(3) received zidovudine during pregnancy plus sd-NVP at labour. Mild (haemoglobin 8.0-10.9 g/dl) and severe anaemia (haemoglobin < 8.0 g/dl) occurrence were assessed across study arms, using Kaplan-Meier and multivariable Cox proportional hazards models. RESULTS: At enrolment (corresponded to a median 32 weeks gestation), median haemoglobin was 10.3 g/dl (IQR = 9.2-11.1). Severe anaemia occurred subsequently in 194 (18.1%) women, mostly in those with low baseline haemoglobin, lowest socio-economic category, advanced HIV disease, prolonged breastfeeding (≥ 6 months) and shorter ARV exposure. Severe anaemia incidence was similar in the randomized arms (equivalence P-value = 0.32). After 1-2 months of ARV's, severe anaemia was significantly reduced in all groups, though remained highest in the low CD4 cohort. CONCLUSIONS: Severe anaemia occurs at a similar rate in women receiving longer triple zidovudine-containing regimens or shorter prophylaxis. Pregnant women with pre-existing anaemia and advanced HIV disease require close monitoring. TRIAL REGISTRATION NUMBER: ISRCTN71468401.


Assuntos
Anemia/epidemiologia , Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , HIV-1/isolamento & purificação , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Complicações Infecciosas na Gravidez/tratamento farmacológico , Zidovudina/uso terapêutico , Adulto , África Subsaariana/epidemiologia , Feminino , Infecções por HIV/sangue , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Humanos , Lactente , Recém-Nascido , Estimativa de Kaplan-Meier , Nevirapina/uso terapêutico , Gravidez , Complicações Infecciosas na Gravidez/sangue , Complicações Infecciosas na Gravidez/epidemiologia
2.
PLoS Med ; 8(11): e1001132, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-22140367

RESUMO

BACKGROUND: There is strong evidence showing that voluntary medical male circumcision (VMMC) reduces HIV incidence in men. To inform the VMMC policies and goals of 13 priority countries in eastern and southern Africa, we estimate the impact and cost of scaling up adult VMMC using updated, country-specific data. METHODS AND FINDINGS: We use the Decision Makers' Program Planning Tool (DMPPT) to model the impact and cost of scaling up adult VMMC in Botswana, Lesotho, Malawi, Mozambique, Namibia, Rwanda, South Africa, Swaziland, Tanzania, Uganda, Zambia, Zimbabwe, and Nyanza Province in Kenya. We use epidemiologic and demographic data from recent household surveys for each country. The cost of VMMC ranges from US$65.85 to US$95.15 per VMMC performed, based on a cost assessment of VMMC services aligned with the World Health Organization's considerations of models for optimizing volume and efficiencies. Results from the DMPPT models suggest that scaling up adult VMMC to reach 80% coverage in the 13 countries by 2015 would entail performing 20.34 million circumcisions between 2011 and 2015 and an additional 8.42 million between 2016 and 2025 (to maintain the 80% coverage). Such a scale-up would result in averting 3.36 million new HIV infections through 2025. In addition, while the model shows that this scale-up would cost a total of US$2 billion between 2011 and 2025, it would result in net savings (due to averted treatment and care costs) amounting to US$16.51 billion. CONCLUSIONS: This study suggests that rapid scale-up of VMMC in eastern and southern Africa is warranted based on the likely impact on the region's HIV epidemics and net savings. Scaling up of safe VMMC in eastern and southern Africa will lead to a substantial reduction in HIV infections in the countries and lower health system costs through averted HIV care costs.


Assuntos
Circuncisão Masculina/economia , Infecções por HIV/prevenção & controle , Programas Nacionais de Saúde/economia , Adolescente , Adulto , África Oriental/epidemiologia , Circuncisão Masculina/estatística & dados numéricos , Análise Custo-Benefício , Tomada de Decisões Gerenciais , Feminino , Infecções por HIV/economia , Infecções por HIV/epidemiologia , Infecções por HIV/transmissão , Política de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Econômicos , Programas Nacionais de Saúde/organização & administração , Comportamento Sexual/psicologia , África do Sul/epidemiologia , Adulto Jovem
3.
J Immunother ; 44(4): 175-178, 2021 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-33492031

RESUMO

Pembrolizumab is an anti-programmed cell death protein 1 immune checkpoint inhibitor with a dosing schedule of 200 mg 3 weekly (q3w). Dose of 400 mg 6 weekly (q6w) was approved based on simulation of dose/exposure relationships and predicted no difference in toxicity. We present real-world comparative toxicity data. Patients receiving pembrolizumab for any indication between March and December 2019 were included across 3 regional centers. Toxicity data were collected retrospectively using Common Terminology Criteria for Adverse Events, v5.0. Clinically significant immune-related adverse events (CSirAE) were defined as immune-related events and grade ≥3 rash. Data were analyzed using incidence (Poisson distribution) and incidence ratio. Overall, 63 patients started on q6w and 110 patients received q3w. There were 3 (q6w) and 8 (q3w) grade 3-5 CSirAE and 13 (q6w) and 31 (q3w) grade 1-2 CSirAE. The incidence of grade 3-5 CSirAE was 0.77 (95% confidence interval: 0.16-2.24) per 100 patient-months in q6w and 0.68 (95% confidence interval: 0.29-1.34) per 100 patient-months in q3w (incidence ratio of 1.13; 95% confidence interval: 0.19-4.70). Low-grade toxicity was common (fatigue, pruritus, rash; q6w 46%, q3w 42%). Incidence of CSirAEs was low but low-grade toxicity was common. Despite a limited number of events, there is the suggestion that the q6w schedule has a similar toxicity profile to q3w and therefore consideration should be given to the reduced burden to patients and health services when deciding treatment.


Assuntos
Anticorpos Monoclonais Humanizados/efeitos adversos , Idoso , Anticorpos Monoclonais Humanizados/administração & dosagem , Exantema/induzido quimicamente , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
4.
J Acquir Immune Defic Syndr ; 86(3): 323-328, 2021 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-33136817

RESUMO

BACKGROUND: In addition to providing millions of men with lifelong lower risk for HIV infection, voluntary medical male circumcision (VMMC) also provides female partners with health benefits including decreased risk for human papillomavirus (HPV) and resultant cervical cancer (CC). SETTING: We modeled potential impacts of VMMC on CC incidence and mortality in Uganda as an additional benefit beyond HIV prevention. METHODS: HPV and CC outcomes were modeled using the CC model from the Spectrum policy tool suite, calibrated for Uganda, to estimate HPV infection incidence and progression to CC, using a 50-year (2018-2067) time horizon. 2016 Demographic Health Survey data provided baseline VMMC coverage. The baseline (no VMMC scale-up beyond current coverage, minimal HPV vaccination coverage) was compared with multiple scenarios to assess the varying impact of VMMC according to different implementations of HPV vaccination and HPV screening programs. RESULTS: Without further intervention, annual CC incidence was projected to rise from 16.9 to 31.2 per 100,000 women in 2067. VMMC scale-up alone decreased 2067 annual CC incidence to 25.3, averting 13,000 deaths between 2018 and 2067. With rapidly-achieved 90% HPV9 vaccination coverage for adolescent girls and young women, 2067 incidence dropped below 10 per 100,000 with or without a VMMC program. With 45% vaccine coverage, the addition of VMMC scaleup decreased incidence by 2.9 per 100,000 and averted 8000 additional deaths. Similarly, with HPV screen-and-treat without vaccination, the addition of VMMC scaleup decreased incidence by 5.1 per 100,000 and averted 10,000 additional deaths. CONCLUSIONS: Planned VMMC scale-up to 90% coverage from current levels could prevent a substantial number of CC cases and deaths in the absence of rapid scale-up of HPV vaccination to 90% coverage.


Assuntos
Circuncisão Masculina/estatística & dados numéricos , Infecções por HIV/prevenção & controle , Neoplasias do Colo do Útero/epidemiologia , Adolescente , Feminino , Infecções por HIV/epidemiologia , Humanos , Incidência , Masculino , Programas de Rastreamento , Papillomaviridae , Infecções por Papillomavirus/prevenção & controle , Vacinas contra Papillomavirus , Uganda/epidemiologia , Vacinação , Programas Voluntários
5.
J Int AIDS Soc ; 23(6): e25490, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32558344

RESUMO

INTRODUCTION: WHO/UNAIDS recommended Voluntary Medical Male Circumcision in 2007 based on systematic review of observational studies prior to 1999 and three randomized controlled trials (RCTs). To inform updated WHO guidance, we conducted a systematic review and meta-analysis of impact of circumcision on the risk of HIV infection among heterosexual men. METHODS: Studies in PubMed of HIV incidence and changes in prevalence in heterosexual men by circumcision status were identified. Pooled incidence rate ratios were computed using fixed- and random-effects meta-analysis and risk of bias was assessed using the ROBINS-I tool. RESULTS AND DISCUSSION: In three RCTs, the pooled incidence ratio was 0.41 (95% CI 0.30 to 0.56), with risk difference 10 (8 to 12) fewer infections per 1000 person-years (py). Pooled incidence ratios were 0.34 (0.24 to 0.49) in two post-RCT follow-up studies, 0.29 (0.19 to 0.43) in men at high HIV risk (five cohorts), 0.48 (0.33 to 0.70) in four community-based cohorts before circumcision scale-up, and 0.56 (0.49 to 0.64) (7 [6 to 8] fewer per 1000 py) in six community-based cohorts during circumcision and antiretroviral treatment scale-up. Heterogeneity between studies was low except in men at high HIV risk. We estimated 520,000 (425,000 to 605,000) fewer infections occurred in men by end of 2018 from 22.7 million circumcisions performed since 2008 and increasing by 155,000 (125,000 to 180,000) annually if epidemic conditions remain similar. After exclusion of studies with high risk of bias and those conducted outside Africa, pooled incidence ratios were similar. There was no evidence of confounding nor changes in risk behaviour following circumcision. In post-hoc exploratory analyses we observed a trend of decreasing effectiveness of circumcision in cohorts with lower HIV incidence. CONCLUSIONS: Efficacy of medical male circumcision on HIV incidence from randomized controlled trials was supported by effectiveness from observational studies in populations with diverse HIV risk and changing epidemic contexts. Voluntary Medical Male Circumcision remains an important evidence-based intervention for control of generalized HIV epidemics.


Assuntos
Circuncisão Masculina , Infecções por HIV/etiologia , Infecções por HIV/prevenção & controle , África , Epidemias , Infecções por HIV/epidemiologia , Heterossexualidade , Humanos , Incidência , Masculino , Medição de Risco , Assunção de Riscos
6.
Am J Obstet Gynecol ; 197(3 Suppl): S113-22, 2007 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-17825642

RESUMO

Breastfeeding accounts for up to half of all infant human immunodeficiency virus (HIV) infections worldwide and carries an estimated transmission risk of about 15% when continued into the second year of life. Because replacement feeding is not safely available, culturally acceptable, or affordable in many parts of the world and because breastfeeding provides protection against other causes of infant mortality, approaches that reduce breastfeeding mother-to child transmission of HIV are being explored. These include exclusive breastfeeding for the infant's first few months of life followed by rapid weaning, treatments of expressed milk to inactivate the virus, and antiretroviral prophylaxis taken by the infant or mother during breastfeeding, which are strategies currently being tested in clinical trials. Passive (antibodies) and active (vaccine) immunoprophylaxis will also soon begin to be tested. This paper focuses on current and planned research on strategies to prevent breastfeeding transmission of HIV.


Assuntos
Aleitamento Materno , Infecções por HIV/transmissão , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Antirretrovirais/uso terapêutico , Aleitamento Materno/efeitos adversos , Feminino , Infecções por HIV/terapia , Humanos , Imunoglobulinas Intravenosas/uso terapêutico , Lactente , Recém-Nascido , Gravidez , Complicações Infecciosas na Gravidez/terapia , Fatores de Tempo , Desmame
8.
Contraception ; 75(6): 438-43, 2007 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-17519149

RESUMO

PURPOSE: Most studies have shown a negative effect of depot-medroxyprogesterone acetate (DMPA) on the bone mineral density (BMD) of adolescents. There is no information available on the effect of norethisterone enanthate (NET-EN) on BMD in adolescents and the effect of combined oral contraceptives (COCs) on adolescent BMD is inconclusive. The aim of this longitudinal study was to investigate BMD in adolescent (aged 15-19 years) new users of hormonal contraception (DMPA, NET-EN and COCs). METHOD: New users of DMPA (n=115), NET-EN (n=115), COCs (n=116) and 144 nonuser controls were recruited. BMD was measured at the distal radius and midshaft of the ulna using dual X-ray absorptiometry. RESULTS: In total, 275 women were included in this interim analysis and total follow-up time was 553 person-years. There was no significant difference in radius BMD between users of different contraceptive methods at baseline (p=.40). Overall, an increase in radius BMD of 0.00522 per person-year was observed. This result was similar when adjusting for BMI in the random effects regression model (p=.88). The regression model showed that BMI was significantly associated with radius BMD, with each unit increase in BMI corresponding to an increase of 0.0029 g/cm2 in BMD (95% CI 0.0023 to 0.0036, p<.001). Interaction between contraceptive method and follow-up time adjusted for BMI was not significant (p=.07). The increase in BMD for NET-EN users of 0.0013 g/cm2 per person-year (95% CI -0.0017 to 0.0043) was significantly lower than that of nonusers (p=.017). For DMPA and COC users, the increase in BMD was not significantly different compared to the nonusers. This study suggests that NET-EN users had lower increase in BMD over time compared to the other user groups.


Assuntos
Densidade Óssea/efeitos dos fármacos , Anticoncepcionais Orais Combinados/administração & dosagem , Acetato de Medroxiprogesterona/administração & dosagem , Noretindrona/análogos & derivados , Absorciometria de Fóton , Adolescente , Adulto , Preparações de Ação Retardada , Feminino , Humanos , Estudos Longitudinais , Noretindrona/administração & dosagem , Inquéritos e Questionários
9.
Tob Prev Cessat ; 3: 130, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-32432204

RESUMO

INTRODUCTION: Our objective was to re-analyse the data used in an industry-funded working paper to study the effect of plain packaging on youth smoking prevalence in Australia, allowing for other tobacco control measures introduced over the period 2001-2013, and using a more appropriate method of analysis. METHODS: Monthly smoking prevalence and sample sizes from repeat cross-sectional surveys were reconstructed from the working paper by reverse engineering of the industry-presented data, and analysed as a time series using logistic regression. Power analysis presented in the industry-funded working paper was re-calculated. RESULTS: Smoking prevalence among minors in Australia declined from 11.6% to 5.6% over the 13-year period examined; an overall 52% relative reduction or an average annual reduction of 5.5% (95% confidence interval 4.6% to 6.4%). There was a 12.1% (-4.8% to 26.2%) relative reduction in smoking prevalence when plain packaging was introduced, though the reduction was not statistically significant. Re-calculated power values were much lower than those reported in the industry-funded paper, confirming the inconclusiveness of its findings, as pointed out in previous critiques. CONCLUSIONS: Our findings suggest a decline of smoking prevalence in minors following the introduction of plain packaging in Australia. They differ substantially from those presented in an industry-funded study on the effects of plain packaging on smoking prevalence in minors in Australia, which used the same data.

11.
Am J Sports Med ; 34(10): 1581-5, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16870823

RESUMO

BACKGROUND: The role of knee bracing in anterior cruciate ligament reconstructions is controversial. HYPOTHESIS: Functional bracing will have an effect on subsequent knee injury in skiers with anterior cruciate ligament reconstruction. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: From 1991 to 1997, 11606 skiers at a major destination ski resort underwent preseason knee screening. The anterior cruciate ligament-reconstructed group consisted of 820 skiers who had had an anterior cruciate ligament reconstruction 2 years or more earlier. Of these, 257 skiers selected the use of functional knee brace during skiing. The dependent variable was subsequent knee injury, identified via workers' compensation records. Covariates included age, gender, ski occupation, Lachman grade, pivot-shift grade, KT-1000 arthrometer manual maximum displacement, and use of a functional brace. Univariate and multivariate risk factors for subsequent knee injury were determined. RESULTS: In this study, 257 skier-employees with anterior cruciate ligament reconstruction wore braces and 563 skier-employees with anterior cruciate ligament reconstruction did not. Braced skiers had significantly higher preseason rates of grade II or higher Lachman and pivot-shift tests (braced, 29% and 22%, respectively; nonbraced, 11% and 10%, respectively; P < .05). Sixty-one subsequent knee injuries were identified, 51 (8.9 injuries/100 knees/ski season) in the nonbraced group and 10 (4.0 injuries/100 knees/ski season) in the braced group (P = .009). Nonbraced skiers were 2.74 times more likely to suffer subsequent injury than were braced skiers (odds ratio, 2.74 [confidence interval, 1.2-4.9]). Logistic regression modeling identified nonbracing as a significant independent multivariate risk factor for subsequent knee injury in the high-demand skiers with anterior cruciate ligament reconstruction. CONCLUSION: Because of the increased risk of subsequent knee injury in nonbraced skiers, the authors recommend functional bracing for skiers with anterior cruciate ligament reconstruction. Whether the protective effect of functional bracing can be extrapolated to other high-demand patients is yet to be determined.


Assuntos
Lesões do Ligamento Cruzado Anterior , Artroplastia/reabilitação , Braquetes , Traumatismos do Joelho/prevenção & controle , Traumatismos do Joelho/reabilitação , Esqui/lesões , Adolescente , Adulto , Idoso , Ligamento Cruzado Anterior/cirurgia , Traumatismos em Atletas/prevenção & controle , Traumatismos em Atletas/reabilitação , Estudos de Coortes , Feminino , Humanos , Traumatismos do Joelho/cirurgia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Recidiva
12.
Arthroscopy ; 22(11): 1174-9, 2006 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-17084293

RESUMO

PURPOSE: Five common tests were used to diagnose meniscal tears when used as a composite score. We evaluated how effectively the composite examination, when performed in the presence of an anterior cruciate ligament (ACL) injury or degenerative joint disease (DJD), determined the presence of meniscal tears. METHODS: Data were collected prospectively on all patients at our clinic with a primary knee complaint. Independent variables included the presence or absence of the following: (1) a history of "catching" or "locking" as reported by the patient, (2) pain with forced hyperextension, (3) pain with maximum flexion, (4) pain or an audible click with McMurray's maneuver, and (5) joint line tenderness to palpation. Comprehensive patient demographic data were collected including ligamentous examinations and other intra-articular pathologies found at arthroscopy. Composite examination findings were correlated with the presence or absence of meniscal pathology. RESULTS: We evaluated 635 knees in 576 patients for historical and physical findings. Of the knees, 209 underwent arthroscopic surgery and 426 did not. Chi(2) Analysis showed a significant relation between the number of positive diagnostic tests and the presence of meniscal tears (P = .001). Five positive findings on composite examination yielded a positive predictive value of 92.3%. Positive predictive values remained greater than 75% with composite scores of at least 3 in the absence of ACL and DJD pathologies. The presence of an ACL injury decreased the positive predictive value of 5 composite findings to 67%, whereas the presence of DJD increased predictability to 100%. CONCLUSIONS: When all 5 symptoms and signs were positive, there was a 92.3% positive predictive value of finding a meniscal tear. Although positive predictive values decreased with a concomitant ACL injury and increased with DJD, there was a higher rate of false-positive findings (ACL) and false-negative findings (DJD). LEVEL OF EVIDENCE: Level II, development of diagnostic criteria with consecutive patients and gold standard.


Assuntos
Lesões do Ligamento Cruzado Anterior , Artropatias/complicações , Articulação do Joelho , Lacerações/complicações , Lacerações/diagnóstico , Lesões do Menisco Tibial , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Testes Diagnósticos de Rotina/normas , Reações Falso-Negativas , Reações Falso-Positivas , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Prospectivos
13.
Am J Orthop (Belle Mead NJ) ; 45(3): 134-6, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26991565

RESUMO

Friction blisters are a common sequela of many athletic activities. Their significance can range from minor annoyance to major performance disruptions. The latter is particularly true in baseball pitchers, who sustain repeated trauma between the baseball seams and the fingers of the pitching hand, predominately at the tips of the index and long fingers. Since 2010, 6 Major League Baseball (MLB) players accounted for 7 stints on the disabled list (DL) due to blisters. These injuries resulted in a total of 151 days spent on the DL. Since 2012, 8 minor league players spent time on the DL due to blisters. Moreover, there have been several documented and publicized instances of professional baseball pitchers suffering blisters that did not require placement on the DL but did result in injury time and missed starts. The purpose of this article is to review the etiology and pathophysiology of friction blisters with particular reference to baseball pitchers; provide an overview of past and current prevention methods; and discuss our experience in treating friction blisters in MLB pitchers.


Assuntos
Traumatismos em Atletas , Beisebol/lesões , Vesícula , Traumatismos da Mão , Traumatismos em Atletas/etiologia , Traumatismos em Atletas/fisiopatologia , Traumatismos em Atletas/prevenção & controle , Traumatismos em Atletas/terapia , Vesícula/etiologia , Vesícula/fisiopatologia , Vesícula/prevenção & controle , Vesícula/terapia , Traumatismos da Mão/etiologia , Traumatismos da Mão/fisiopatologia , Traumatismos da Mão/prevenção & controle , Traumatismos da Mão/terapia , Humanos
14.
PLoS One ; 11(7): e0158767, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27441648

RESUMO

BACKGROUND: In 2007, the World Health Organization and the Joint United Nations Programme on HIV/AIDS (UNAIDS) identified 14 priority countries across eastern and southern Africa for scaling up voluntary medical male circumcision (VMMC) services. Several years into this effort, we reflect on progress. METHODS: Using the Decision Makers' Program Planning Tool (DMPPT) 2.1, we assessed age-specific impact, cost-effectiveness, and coverage attributable to circumcisions performed through 2014. We also compared impact of actual progress to that of achieving 80% coverage among men ages 15-49 in 12 VMMC priority countries and Nyanza Province, Kenya. We populated the models with age-disaggregated VMMC service statistics and with population, mortality, and HIV incidence and prevalence projections exported from country-specific Spectrum/Goals files. We assumed each country achieved UNAIDS' 90-90-90 treatment targets. RESULTS: More than 9 million VMMCs were conducted through 2014: 43% of the estimated 20.9 million VMMCs required to reach 80% coverage by the end of 2015. The model assumed each country reaches the UNAIDS targets, and projected that VMMCs conducted through 2014 will avert 240,000 infections by the end of 2025, compared to 1.1 million if each country had reached 80% coverage by the end of 2015. The median estimated cost per HIV infection averted was $4,400. Nyanza Province in Kenya, the 11 priority regions in Tanzania, and Uganda have reached or are approaching MC coverage targets among males ages 15-24, while coverage in other age groups is lower. Across all countries modeled, more than half of the projected HIV infections averted were attributable to circumcising 10- to 19-year-olds. CONCLUSIONS: The priority countries have made considerable progress in VMMC scale-up, and VMMC remains a cost-effective strategy for epidemic impact, even assuming near-universal HIV diagnosis, treatment coverage, and viral suppression. Examining circumcision coverage by five-year age groups will inform countries' decisions about next steps.


Assuntos
Circuncisão Masculina/estatística & dados numéricos , Custos e Análise de Custo/economia , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Programas Voluntários , Adolescente , Adulto , África Oriental/epidemiologia , África Austral/epidemiologia , Distribuição por Idade , Circuncisão Masculina/economia , Infecções por HIV/economia , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
16.
Contraception ; 71(3): 170-5, 2005 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-15722065

RESUMO

Most studies show that depot-medroxyprogesterone acetate (DMPA) has a negative effect on bone mass. There are conflicting reports with respect to recovery of bone mass with long-term use of DMPA. No information is available on the effect of norethisterone enanthate (NET-EN) on bone mass, and combined oral contraceptives (COCs) have not been found to be associated with loss of bone mass. The aim of this study was to investigate bone mineral density (BMD) in older women (40-49 years) in relation to use of DMPA, NET-EN and COCs for at least 12 months preceding recruitment into the study. One-hundred twenty-seven users of DMPA, 102 NET-EN users and 106 COC users were compared to 161 nonuser controls. Bone mineral density was measured at the distal radius and midshaft of the ulna using dual X-ray absorptiometry. There was no significant difference in BMD between the four contraceptive user groups (p=.26) with and without adjustment for age. Although a small decrease in BMD was noted in the age range of 40-49 years, this was not statistically significant (p=.7). The BMD was found to be significantly associated with body mass index (BMI) (por=25.8 mIU/mL was associated with a decrease of 0.017 g/cm2 in radius BMD relative to women with FSH <25.8 mIU/mL. Significant interaction between FSH and BMI in their effect on BMD was observed (p=.006). This study found no evidence that long-term use of DMPA, NET-EN and COCs affects BMD in this population.


Assuntos
Densidade Óssea/efeitos dos fármacos , Anticoncepcionais Femininos/farmacologia , Adulto , Índice de Massa Corporal , Estudos de Coortes , Anticoncepcionais Femininos/administração & dosagem , Anticoncepcionais Orais Combinados/administração & dosagem , Anticoncepcionais Orais Combinados/farmacologia , Estudos Transversais , Emprego , Exercício Físico , Feminino , Hormônio Foliculoestimulante/metabolismo , Humanos , Estado Civil , Acetato de Medroxiprogesterona/administração & dosagem , Acetato de Medroxiprogesterona/farmacologia , Pessoa de Meia-Idade , Noretindrona/administração & dosagem , Noretindrona/análogos & derivados , Noretindrona/farmacologia , África do Sul , Fatores de Tempo
17.
J Clin Epidemiol ; 55(8): 741-7, 2002 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-12384187

RESUMO

Rates of myocardial infarction and stroke increase as countries "develop." These disorders emerge among higher socio-economic groups, but once "developed," most events occur in lower socio-economic groups. We evaluated the association between education as a measure of socio-economic status and risk of acute myocardial infarction (AMI) and stroke in regions at various stages of development and between stroke risk and life expectancy. The study comprised 2,478 cases of AMI or stroke and 6,819 controls among women aged 19-49, from Africa, Asia, Latin America, and Eastern Europe. Compared to those with high educational attainment, stroke risk was reduced among less educated women in Africa, but was significantly higher in the other three regions. Low education was associated with increased risk of AMI in Eastern Europe but not in the other three regions combined. Educationally related stroke risk was positively correlated with national life expectancy.


Assuntos
Expectativa de Vida , Infarto do Miocárdio/epidemiologia , Acidente Vascular Cerebral/epidemiologia , Saúde da Mulher , Adulto , África/epidemiologia , Ásia/epidemiologia , Estudos de Casos e Controles , Escolaridade , Europa Oriental/epidemiologia , Feminino , Humanos , América Latina/epidemiologia , Pessoa de Meia-Idade , Razão de Chances , Risco , Classe Social , Fatores Socioeconômicos , Organização Mundial da Saúde
18.
Am J Orthop (Belle Mead NJ) ; 32(2): 98-100, 2003 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-12602639

RESUMO

The current concepts of anatomic and stable fixation followed by early mobilization in Monteggia fractures have clearly resulted in improvements in treatment and outcome. Bilateral Monteggia fractures are unusual and to the best of our knowledge have not been the subject of any reports in the literature. In this case report, we describe the operative technique for treating bilateral Monteggia fractures and the common pitfalls associated with this treatment. Despite the surgical and rehabilitative challenges posed by our patient's case, excellent results were obtained for both elbows.


Assuntos
Fixação Interna de Fraturas/métodos , Fratura de Monteggia/cirurgia , Acidentes por Quedas , Placas Ósseas , Parafusos Ósseos , Fios Ortopédicos , Feminino , Fixação Interna de Fraturas/instrumentação , Humanos , Pessoa de Meia-Idade , Fratura de Monteggia/reabilitação
19.
Magn Reson Imaging Clin N Am ; 20(2): 313-25, xi, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22469406

RESUMO

Magnetic resonance imaging (MRI) and MR arthrography have proven invaluable for managing the postoperative shoulder, particularly in relation to the rotator cuff and labrum. MRI has proven to be an accurate imaging technique for differentiating expected findings versus complications in the postoperative setting. The transition from metallic hardware to bioabsorbable suture anchors used in orthopedic surgery has rendered less metallic susceptibility artifact over the years, allowing more accurate interpretation of MR images. This article gives a pictorial review of various expected postoperative findings in the shoulder and complications related to repair of the rotator cuff and labrum.


Assuntos
Artroplastia/métodos , Artropatias/diagnóstico , Artropatias/cirurgia , Imageamento por Ressonância Magnética/métodos , Cuidados Pós-Operatórios/métodos , Articulação do Ombro/patologia , Articulação do Ombro/cirurgia , Humanos , Resultado do Tratamento
20.
Contraception ; 81(1): 30-4, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20004270

RESUMO

BACKGROUND: Weight gain is commonly reported as a side effect of hormonal contraception and can lead to method discontinuation or reluctance to initiate the method. The purpose of this study was to investigate weight change in adolescent (aged 15-19 years) users of depot-medroxyprogesterone acetate (DMPA), norethisterone enanthate (NET-EN), combined oral contraceptives (COCs) and discontinuers of these methods as compared to nonusers of hormonal contraception. STUDY DESIGN: This longitudinal study recruited initiators of DMPA (n=115), NET-EN (n=115), COCs (n=116) and nonusers of contraception (n=144). Participants were followed up for 4-5 years, and details of current contraceptive method, including switching, discontinuing and/or starting hormonal methods were documented at each 6-monthly visit. Women were classified according to their contraceptive histories on completion of the study, and injectable users were combined into one group for analysis. Height, weight and self-reported dieting were recorded at each visit. RESULTS: There was no difference in mean age or weight between the groups at baseline. Women using DMPA or NET-EN throughout, or switching between the two, had gained an average of 6.2 kg compared to average increases of 2.3 kg in the COC group, 2.8 kg in nonusers and 2.8 kg among discontinued users of any method (p=.02). There was no evidence of a difference in weight gain between women classified as nonobese or classified as overweight/obese in any of the four study groups at baseline. CONCLUSION: There is fairly strong evidence that adolescent contraceptive hormonal injectable users appear to gain more weight than COC users, discontinuers and nonusers of contraception.


Assuntos
Comportamento Contraceptivo/estatística & dados numéricos , Anticoncepcionais Orais Combinados/efeitos adversos , Acetato de Medroxiprogesterona/efeitos adversos , Noretindrona/análogos & derivados , Aumento de Peso/efeitos dos fármacos , Suspensão de Tratamento/estatística & dados numéricos , Adolescente , Índice de Massa Corporal , Peso Corporal/efeitos dos fármacos , Feminino , Humanos , Estudos Longitudinais , Noretindrona/efeitos adversos , Estudos Prospectivos , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
Detalhe da pesquisa