Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 1.128
Filtrar
Mais filtros

Base de dados
Tipo de documento
Intervalo de ano de publicação
1.
BMC Public Health ; 21(1): 1824, 2021 10 09.
Artigo em Inglês | MEDLINE | ID: mdl-34627181

RESUMO

BACKGROUND: Among people living with HIV (PLWH), physical intimate partner violence (IPV) is associated with poor virologic, psychiatric, and behavioral outcomes. We examined non-physical, psychological intimate partner violence (psy-IPV) and HIV care outcomes using data from two U.S. consortia. METHODS: We conducted multivariable analyses with robust standard errors to compare patients indicating/not indicating psy-IPV. RESULTS: Among PLWH (n = 5950), 9.5% indicated psy-IPV; these individuals were younger (- 3; 95% CI [- 2,-4], p-value < 0.001), less likely to be on antiretroviral treatment (ART) (0.73 [0.55,0.97], p = 0.03), less adherent to ART (- 4.2 [- 5.9,-2.4], p < 0.001), had higher odds of detectable viral load (1.43 [1.15,1.78], p = 0.001) and depression (2.63 [2.18,3.18], p < 0.001), and greater use of methamphetamines/crystal [2.98 (2.30,3.87),p < 0.001], cocaine/crack [1.57 (1.24,1.99),p < 0.001], illicit opioids [1.56 (1.13,2.16),p = 0.007], and marijuana [1.40 (1.15,1.70), p < 0.001]. CONCLUSION: Psychological IPV, even in the absence of physical or sexual IPV, appears to be associated with HIV care outcomes and should be included in IPV measures integrated into routine HIV care.


Assuntos
Infecções por HIV , Violência por Parceiro Íntimo , Antirretrovirais/uso terapêutico , Estudos Transversais , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Humanos , Prevalência , Parceiros Sexuais , Carga Viral
2.
BMC Public Health ; 20(1): 407, 2020 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-32306938

RESUMO

BACKGROUND: In April 2014 the UK government launched the 'NHS Visitor and Migrant Cost Recovery Programme Implementation Plan' which set out a series of policy changes to recoup costs from 'chargeable' (largely non-UK born) patients. In England, approximately 75% of tuberculosis (TB) cases occur in people born abroad. Delays in TB treatment increase risk of morbidity, mortality and transmission in the community. We investigated whether diagnostic delay has increased since the Cost Recovery Programme (CRP) was introduced. METHODS: There were 3342 adult TB cases notified on the London TB Register across Barts Health NHS Trust between 1st January 2011 and 31st December 2016. Cases with missing relevant information were excluded. The median time between symptom onset and treatment initiation before and after the CRP was calculated according to birthplace and compared using the Mann Whitney test. Delayed diagnosis was considered greater or equal to median time to treatment for all patients (79 days). Univariable logistic regression was used to manually select exposure variables for inclusion in a multivariable model to test the association between diagnostic delay and the implementation of the CRP. RESULTS: We included 2237 TB cases. Among non-UK born patients, median time-to-treatment increased from 69 days to 89 days following introduction of CRP (p < 0.001). Median time-to-treatment also increased for the UK-born population from 75.5 days to 89.5 days (p = 0.307). The multivariable logistic regression model showed non-UK born patients were more likely to have a delay in diagnosis after the CRP (adjOR 1.37, 95% CI 1.13-1.66, p value 0.001). CONCLUSION: Since the introduction of the CRP there has been a significant delay for TB treatment among non-UK born patients. Further research exploring the effect of policies restricting access to healthcare for migrants is urgently needed if we wish to eliminate TB nationally.


Assuntos
Diagnóstico Tardio/economia , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Migrantes , Tuberculose Pulmonar/epidemiologia , Adulto , Inglaterra/epidemiologia , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Sistema de Registros , Medicina Estatal , Tempo para o Tratamento/estatística & dados numéricos , Tuberculose Pulmonar/diagnóstico , Tuberculose Pulmonar/economia , Tuberculose Pulmonar/etnologia , Adulto Jovem
3.
Eur J Appl Physiol ; 120(1): 77, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31776695

RESUMO

The authors would like to correct the following errors in the online publication of the article. Incorrect values for % changes for climb duration were provided in the abstract, results and discussion session. The  % changes in climb duration was 15% with intake of New Zealand blackcurrant extract and -15% for the placebo condition. This correction does not change the conclusions derived from the study.

4.
Eur J Appl Physiol ; 120(1): 67-75, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31515632

RESUMO

PURPOSE: Blood flow to skeletal muscles and removal of metabolic by-products during a sport climb are essential to optimise performance and recovery. New Zealand blackcurrant (NZBC) extract has enhanced blood flow and performance in other exercise modalities. We examined the effect of NZBC extract on sport climbing performance and recovery. METHODS: The study employed a double-blind, randomised, crossover design. Male sport climbers (n = 18, age 24 ± 6 years, height 179 ± 6 cm, mass 71.4 ± 7.8 kg, French grade 6a-8b) undertook 7 days supplementation of NZBC extract (600 mg day-1 CurraNZ™ containing 210 mg anthocyanins) or a placebo (PL). Climbing ability was assessed through hang time (HT), pull-ups and total climbing time (TCT) in 3 intermittent climbing bouts on a Treadwall M6 rotating climbing wall to exhaustion with 20 min recovery between climbs. Heart rate (HR), blood lactate (BL), forearm girth (FG) and hand grip strength (HGS) were recorded. RESULTS: NZBC extract had no effect on pull-ups but provided a trend for higher HT and significantly improved TCT (+23%) compared to PL (-11%) over three climbs. HR, BL, FG and HGS all indicated that 20 min was insufficient for physiological recovery between the three climbing bouts indicating accumulative fatigue regardless of supplement condition. CONCLUSION: Despite indices of progressive fatigue across three bouts of climbing, NZBC extract facilitated not only a maintenance of TCT but an improved climbing endurance as compared with the PL condition. Blackcurrant anthocyanin-derived metabolites seem to affect physiological responses that facilitate sport climbing performance.


Assuntos
Desempenho Atlético , Montanhismo , Extratos Vegetais/farmacologia , Ribes/química , Adulto , Força da Mão , Frequência Cardíaca , Humanos , Ácido Láctico/sangue , Masculino , Músculo Esquelético/efeitos dos fármacos , Músculo Esquelético/fisiologia , Extratos Vegetais/administração & dosagem , Fluxo Sanguíneo Regional/efeitos dos fármacos
5.
Eur J Neurol ; 26(12): 1455-1463, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31231893

RESUMO

BACKGROUND AND PURPOSE: The relationship of the estimated glomerular filtration rate (eGFR) with complications after stroke has not been fully characterized for the entire clinical spectrum of eGFR and for the fluctuation in eGFR during hospital stay. METHODS: Data from the Norfolk and Norwich Stroke Registry recorded between January 2003 and April 2015 were analysed. eGFR was categorized into six clinically relevant categories as per the Kidney Disease Improving Global Outcomes guidelines. The change in eGFR during acute admission was categorized into the following: within 5% change (reference), 5%-20% decline, >20% decline, 5%-20% increase and >20% increase. All-cause mortality, recurrent stroke, incident myocardial infarction, prolonged hospital stay and stroke disability at discharge were outcomes of interest. RESULTS: In all, 10 329 stroke patients (mean age 77.8 years) were followed for a mean of 2.9 years (30 126 person-years). Multivariable adjusted hazard ratios (95% confidence interval) for all-cause mortality were 0.91 (0.80-1.04), 0.96 (0.83-1.11), 1.23 (1.06-1.43), 1.54 (1.31-1.82) and 2.38 (1.91-2.97) for eGFR levels 60-89, 45-59, 30-44, 15-29 and <15 respectively, compared to eGFR ≥ 90 ml/min/1.73 m2 . The hazard ratios (95% confidence interval) for eGFR change were 1.56 (1.36-1.79), 1.17 (1.05-1.30), 1.47 (1.32-1.62) and 1.71 (1.55-1.88) for >20% decline, 5%-20% decline, 5%-20% increase and >20% increase, respectively, compared to change within 5%. Results were similar for other outcomes except recurrent stroke. CONCLUSIONS: Stroke patients with eGFR < 45 ml/min/1.73 m2 at hospital admission and >5% decline or increase in eGFR during hospital stay were at substantially higher risk of poor outcomes, particularly all-cause mortality, myocardial infarction, prolonged hospital stay and disability at discharge.


Assuntos
Taxa de Filtração Glomerular/fisiologia , Infarto do Miocárdio/etiologia , Acidente Vascular Cerebral/complicações , Idoso , Idoso de 80 Anos ou mais , Feminino , Hospitalização , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/fisiopatologia , Alta do Paciente , Prognóstico , Recidiva , Sistema de Registros , Fatores de Risco , Acidente Vascular Cerebral/fisiopatologia
6.
Acta Neurol Scand ; 138(4): 293-300, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29749062

RESUMO

OBJECTIVES: Stroke-associated pneumonia (SAP) is common and associated with adverse outcomes. Data on its impact beyond 1 year are scarce. MATERIALS AND METHODS: This observational study was conducted in a cohort of stroke patients admitted consecutively to a tertiary referral center in the east of England, UK (January 2003-April 2015). Logistic regression models examined inpatient mortality and length of stay (LOS). Cox regression models examined longer-term mortality at predefined time periods (0-90 days, 90 days-1 year, 1-3 years, and 3-10 years) for SAP. Effect of SAP on functional outcome at discharge was assessed using logistic regression. RESULTS: A total of 9238 patients (mean age [±SD] 77.61 ± 11.88 years) were included. SAP was diagnosed in 1083 (11.7%) patients. The majority of these cases (n = 658; 60.8%) were aspiration pneumonia. After controlling for age, sex, stroke type, Oxfordshire Community Stroke Project (OCSP) classification, prestroke modified Rankin scale, comorbidities, and acute illness markers, mortality estimates remained significant at 3 time periods: inpatient (OR 5.87, 95%CI [4.97-6.93]), 0-90 days (2.17 [1.97-2.40]), and 91-365 days (HR 1.31 [1.03-1.67]). SAP was also associated with higher odds of long LOS (OR 1.93 [1.67-2.22]) and worse functional outcome (OR 7.17 [5.44-9.45]). In this cohort, SAP did not increase mortality risk beyond 1 year post-stroke, but it was associated with reduced mortality beyond 3 years. CONCLUSIONS: Stroke-associated pneumonia is not associated with increased long-term mortality, but it is linked with increased mortality up to 1 year, prolonged LOS, and poor functional outcome on discharge. Targeted intervention strategies are required to improve outcomes of SAP patients who survive to hospital discharge.


Assuntos
Tempo de Internação/tendências , Pneumonia/diagnóstico , Pneumonia/mortalidade , Recuperação de Função Fisiológica , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/mortalidade , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Comorbidade , Feminino , Seguimentos , Hospitalização/tendências , Humanos , Masculino , Pessoa de Meia-Idade , Alta do Paciente/tendências , Pneumonia/etiologia , Prognóstico , Acidente Vascular Cerebral/complicações , Resultado do Tratamento
7.
Trop Med Int Health ; 22(8): 994-999, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-28609809

RESUMO

OBJECTIVE: To describe characteristics, presentation, time to diagnosis and diagnostic findings of patients with intestinal tuberculosis (ITB) in a low-burden country. METHOD: Retrospective study of 61 consecutive ITB patients diagnosed between 2008 and 2014 at a large East London hospital. RESULTS: Forty of sixty-one patients were male. Mean age was 34.6 years. 93% of patients were born abroad, mostly from TB-endemic areas (Indian subcontinent: 88%, Africa: 9%). 25% had concomitant pulmonary TB. Median time from symptom onset to ITB diagnosis was 13 weeks (IQR 3-26 weeks). Ten patients were initially treated for IBD, although patients had ITB. The main sites of ITB involvement were the ileocaecum (44%) or small bowel (34%). Five patients had isolated perianal disease. Colonoscopy confirmed a diagnosis of ITB in 77% of those performed. 42 of 61 patients had a diagnosis of ITB confirmed on positive histology and/or microbiology. CONCLUSION: Diagnosis of ITB is often delayed, which may result in significant morbidity. ITB should be excluded in patients with abdominal complaints who come from TB-endemic areas to establish prompt diagnosis and treatment. Diagnosis is challenging but aided by axial imaging, colonoscopy and tissue biopsy for TB culture and histology.


Assuntos
Intestinos/patologia , Tuberculose Gastrointestinal/diagnóstico , Dor Abdominal/diagnóstico , Dor Abdominal/etiologia , Adulto , África/etnologia , Doenças do Ânus/etiologia , Demografia , Diagnóstico Diferencial , Emigrantes e Imigrantes , Feminino , Humanos , Índia/etnologia , Intestinos/microbiologia , Londres/epidemiologia , Masculino , Estudos Retrospectivos , Migrantes , Tuberculose Gastrointestinal/complicações , Tuberculose Gastrointestinal/epidemiologia , Tuberculose Gastrointestinal/microbiologia , Tuberculose Pulmonar/complicações
9.
Acta Neurol Scand ; 135(5): 553-559, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-27397108

RESUMO

OBJECTIVES: To examine the usefulness of including sodium (Na) levels as a criterion to the SOAR stroke score in predicting inpatient and 7-day mortality in stroke. MATERIALS AND METHODS: Data from the Norfolk and Norwich University Hospital Stroke & TIA register (2003-2015) were analysed. Univariate and then multivariate models controlling for SOAR variables were used to assess the association between admission sodium levels and inpatient and 7-day mortality. The prognostic ability of the SOAR and SOAR Na scores for mortality outcomes at both time points were then compared using the Area Under the Curve (AUC) values from the Receiver Operating Characteristic curves. RESULTS: A total of 8493 cases were included (male=47.4%, mean (SD) 77.7 (11.6) years). Compared with normonatremia (135-145 mmol/L), hypernatraemia (>145 mmol/L) was associated with inpatient mortality and moderate (125-129 mmol/L) and severe hypontraemia (<125 mmol/L) with 7-day mortality after adjustment for stroke type, Oxfordshire Community Stroke Project classification, age, prestroke modified Rankin score and sex. The SOAR and SOAR-Na scores both performed well in predicting inpatient mortality with AUC values of .794 (.78-.81) and .796 (.78-.81), respectively. 7-day mortality showed similar results. Both scores were less predictive in those with chronic kidney disease (CKD) and more so in those with hypoglycaemia. CONCLUSION: The SOAR-Na did not perform considerably better than the SOAR stroke score. However, the performance of SOAR-Na in those with CKD and dysglycaemias requires further investigation.


Assuntos
Índice de Gravidade de Doença , Sódio/sangue , Acidente Vascular Cerebral/sangue , Acidente Vascular Cerebral/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores/sangue , Feminino , Mortalidade Hospitalar/tendências , Hospitalização/tendências , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Prognóstico , Acidente Vascular Cerebral/mortalidade
10.
Cancer Causes Control ; 27(9): 1081-91, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-27447961

RESUMO

PURPOSE: Papanicolaou (Pap) testing has dramatically decreased cervical cancer incidence in the USA, but only 83 % of women screen according to guidelines. Our study aimed to examine the real-world effectiveness of various outreach methods in engaging patients who are overdue for cervical cancer screening. METHODS: In total, 1,100 patients at an urban federally qualified health center overdue for Pap testing were randomized to receive usual care (control), letter outreach, email outreach, telephone outreach, or multimodal (letter/email/telephone) outreach over a period of 3 months. Eighteen months after randomization, medical records were used to determine whether and when each patient had obtained a Pap. RESULTS: Compared to patients receiving usual care, patients in the multimodal (36 vs. 21 %, AOR 2.3, 95 % CI 1.4, 3.6) and telephone (29 vs. 21 %, AOR 1.7, 95 % CI 1.1, 2.8) outreach groups were significantly more likely to receive cervical cancer screening during the follow-up period. Intervention effects were similar among older and younger patients. Telephone, multimodal, and letter outreach resulted in significantly lower median time to screening among patients who did screen (119, 122, and 157 days, respectively) in those groups as compared to the usual care group (270 days). CONCLUSIONS: This is the first study to perform a direct, randomized comparison of four distinct cervical cancer outreach intervention modalities with a control usual care group, ensuring comparability across intervention methods. In an urban primary care setting, a multimodal outreach strategy was most effective at increasing the proportion of overdue patients who undergo cervical screening and decreasing time to screening. CLINICAL TRIALS REGISTRY: ClinicalTrials.gov ; REGISTRATION NUMBER: NCT02427399; https://clinicaltrials.gov/ct2/show/NCT02427399 .


Assuntos
Detecção Precoce de Câncer/métodos , Programas de Rastreamento/métodos , Neoplasias do Colo do Útero/diagnóstico , Adulto , Idoso , Feminino , Humanos , Pessoa de Meia-Idade , Atenção Primária à Saúde
12.
J Public Health (Oxf) ; 38(2): 391-5, 2016 06.
Artigo em Inglês | MEDLINE | ID: mdl-25889386

RESUMO

Despite well-established treatment regimens, tuberculosis (TB) remains a public health burden; it disproportionately affects poor and marginalized populations who may not have access to social support, including migrants, homeless people and those dependent on drugs or alcohol. There is a clearly demonstrated need for housing and other appropriate social support, as part of a package of integrated clinical and social care. However, TB prevention and control efforts in the UK often do not address the specific vulnerabilities of these groups and it can be a challenge to support the continued TB treatment of these underserved populations. This challenge is exacerbated by complex issues concerning funding, immigration and the law. In this paper, we have reviewed current UK guidance and legislation, discussed several case studies and highlighted examples of existing models of community support for TB patients. Finally, we lay out our recommendations for ensuring a co-ordinated, whole system approach to successful TB treatment.


Assuntos
Emigração e Imigração , Pessoas Mal Alojadas , Tuberculose , Populações Vulneráveis , Adulto , Antituberculosos/economia , Antituberculosos/uso terapêutico , Farmacorresistência Bacteriana Múltipla , Feminino , Habitação , Humanos , Masculino , Pessoa de Meia-Idade , Saúde Pública , Apoio Social , Medicina Estatal/legislação & jurisprudência , Tuberculose/tratamento farmacológico , Tuberculose/economia , Tuberculose/prevenção & controle , Tuberculose/transmissão , Reino Unido
13.
Thorax ; 70(3): 297-8, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24928813

RESUMO

Using the best available evidence and expert consensus, this document provides guidance for adverse effect monitoring in multidrug-resistant TB (MDR-TB). It includes recommendations for baseline tests, routine drug and toxicity monitoring guides as well as individual drug monographs for all drugs currently available in the UK to treat TB. These recommendations provide a structure through which healthcare professionals can better manage the complex drug regimens required for the treatment of MDR-TB; minimising the risk of adverse incidents and helping to improve patients' tolerance, compliance and treatment completion.


Assuntos
Antituberculosos/uso terapêutico , Guias de Prática Clínica como Assunto , Tuberculose Resistente a Múltiplos Medicamentos/tratamento farmacológico , Tuberculose Pulmonar/tratamento farmacológico , Antituberculosos/efeitos adversos , Humanos , Reino Unido
14.
Int J Clin Pract ; 69(9): 948-56, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25832133

RESUMO

BACKGROUND: The ABCD(2) score is routinely used in assessment of transient ischaemic attack (TIA) to assess the risk of developing stroke. There remains uncertainty regarding whether the ABCD(2) score could be used to help predict extent of carotid artery stenosis (CAS). OBJECTIVES: We aimed to (i) collate and analyse all available published literature on this topic and (ii) compare the data from our local population to the existing evidence base. MATERIALS AND METHODS: We conducted a retrospective-observational study over a 6-month period using our East of England hospital-based TIA clinic data with a catchment population of ~750,000. We also searched the literature on studies reporting the association between ABCD(2) score and CAS. RESULTS: We included 341 patients in our observational study. The mean age in our cohort was 72.86 years (SD 10.91) with 52% male participants. ABCD(2) score was not significantly associated with CAS (p = 0.78). Only age > 60 years was significantly associated with ipsilateral (> 50%) and contralateral CAS (> 50% and > 70%) (p < 0.01) after controlling for other confounders. The systematic review identified four studies for inclusion and no significant association between ABCD(2) score and CAS was reported, confirming our findings. CONCLUSION: Our systematic review and observational study confirm that the ABCD(2) score does not predict CAS. However, our observational study has examined a larger number of possible predictors and demonstrates that age appears to be the single best predictor of CAS in patients presenting with a TIA. Selection of urgent carotid ultrasound scan thus should be based on individual patient's age and potential benefit of carotid intervention rather than ABCD(2) score.


Assuntos
Estenose das Carótidas/diagnóstico , Ataque Isquêmico Transitório/diagnóstico , Índice de Gravidade de Doença , Acidente Vascular Cerebral/diagnóstico , Fatores Etários , Idoso , Pressão Sanguínea/fisiologia , Estenose das Carótidas/fisiopatologia , Feminino , Humanos , Ataque Isquêmico Transitório/fisiopatologia , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Reprodutibilidade dos Testes , Estudos Retrospectivos , Literatura de Revisão como Assunto , Fatores de Risco , Acidente Vascular Cerebral/fisiopatologia
15.
Int J Clin Pract ; 69(6): 659-65, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25648886

RESUMO

AIMS: The objective of this study is to externally validate the SOAR stroke score (Stroke subtype, Oxfordshire Community Stroke Project Classification, Age and prestroke modified Rankin score) in predicting hospital length of stay (LOS) following an admission for acute stroke. METHODS: We conducted a multi-centre observational study in eight National Health Service hospital trusts in the Anglia Stroke & Heart Clinical Network between September 2008 and April 2011. The usefulness of the SOAR stroke score in predicting hospital LOS in the acute settings was examined for all stroke and then stratified by discharge status (discharged alive or died during the admission). RESULTS: A total of 3596 patients (mean age 77 years) with first-ever or recurrent stroke (92% ischaemic) were included. Increasing LOS was observed with increasing SOAR stroke score (p < 0.001 for both mean and median) and the SOAR stroke score of 0 had the shortest mean LOS (12 ± 20 days) while the SOAR stroke score of 6 had the longest mean LOS (26 ± 28 days). Among patients who were discharged alive, increasing SOAR stroke score had a significantly higher mean and median LOS (p < 0.001 for both mean and median) and the LOS peaked among patients with score value of 6 [mean (SD) 35 ± 31 days, median (IQR) 23 (14-48) days]. For patients who died as in-patient, there was no significant difference in mean or median LOS with increasing SOAR stroke score (p = 0.68 and p = 0.79, respectively). CONCLUSION: This external validation study confirms the usefulness of the SOAR stroke score in predicting LOS in patients with acute stroke especially in those who are likely to survive to discharge. This provides a simple prognostic score useful for clinicians, patients and service providers.


Assuntos
Tempo de Internação/estatística & dados numéricos , Avaliação de Resultados em Cuidados de Saúde/métodos , Índice de Gravidade de Doença , Acidente Vascular Cerebral , Doença Aguda , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Acidente Vascular Cerebral/mortalidade
16.
Minerva Pediatr ; 67(1): 33-45, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25358846

RESUMO

The majority of adolescents initiate sexual activity during their teenage years, making contraception an important aspect of routine adolescent health care. Despite common misperceptions, all available methods of reversible contraception are appropriate for adolescent use. Contraceptive side effects profiles and barriers to use of certain methods should be considered when providing contraceptives to adolescents. In particular, ease of use, confidentiality, and menstrual effects are main concerns of adolescents. Contraceptive counseling with adolescents should describe method efficacy, discuss user preferences, explore barriers to use, counsel regarding sexually transmitted infection prevention, and consider what to do if contraception fails. Emergency contraception should be widely discussed with adolescents, as it is appropriate for use during gaps in other contraceptive use, method failure, and adolescents who are not using another form of contraception. Dual method use (condom plus a highly effective method of contraception) is the gold standard for prevention of both pregnancy and sexually transmitted infections.


Assuntos
Comportamento do Adolescente , Anticoncepção/métodos , Comportamento Sexual , Adolescente , Anticoncepcionais/administração & dosagem , Anticoncepcionais/efeitos adversos , Feminino , Humanos , Masculino , Gravidez , Gravidez na Adolescência/prevenção & controle , Educação Sexual/métodos , Infecções Sexualmente Transmissíveis/prevenção & controle
17.
Br J Cancer ; 110(7): 1891-7, 2014 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-24518595

RESUMO

BACKGROUND: The age-standardised incidence of breast cancer varies geographically, with rates in the highest-risk countries more than five times those in the lowest-risk countries. METHODS: We investigated the correlation between male (MBC) and female breast cancer (FBC) incidence stratified by female age-group (<50 years, and ≥50 years) and used Poisson regression to examine male incidence rate ratios according to female incidence rates. RESULTS: Age-adjusted breast cancer incidence rates for males and females share a similar geographic distribution (Spearman's correlation=0.51; P<0.0001). A correlation with male incidence rates was found for the entire female population and for women aged 50 years and over. Breast cancer incidence rates in males aged <50 years were not associated with FBC incidence, whereas those in males aged 50 years were. MBC incidence displays a small 'hook' similar to the Clemmesen's hook for FBC, but at a later age than the female hook. INTERPRETATION: Further investigation of possible explanations for these patterns is warranted. Although the incidence of breast cancer is much lower in men than in women, it may be possible to identify a cause common to both men and women.


Assuntos
Neoplasias da Mama Masculina/epidemiologia , Neoplasias da Mama/epidemiologia , Saúde Global/tendências , Adulto , Feminino , Geografia , Humanos , Incidência , Masculino , Pessoa de Meia-Idade
18.
Br J Cancer ; 111(3): 598-602, 2014 Jul 29.
Artigo em Inglês | MEDLINE | ID: mdl-24918813

RESUMO

BACKGROUND: Familial Colorectal Cancer Type X (FCCTX) is defined as individuals with colorectal cancer (CRC) who families meet Amsterdam Criteria-1 (AC1), but whose tumours are DNA-mismatch-repair-proficient, unlike Lynch syndrome (LS). FCCTX does not have an increased risk of extra-colonic cancers. This analysis compares epidemiologic and clinicopathologic features among FCCTX, LS, and 'non-familial' (non-AC1) CRC cases. METHODS: From the Colon Cancer Family Registry, FCCTX (n=173), LS (n=303), and non-AC1 (n=9603) CRC cases were identified. Questionnaire-based epidemiologic information and CRC pathologic features were compared across case groups using polytomous logistic regression. RESULTS: Compared with LS, FCCTX cases were less likely to be current (vs never) smokers; have a proximal subsite (vs rectal) tumour; or have mucinous histology, poor differentiation, or tumour-infiltrating lymphocytes. There were no observed differences in co-morbidities or medication usage. CONCLUSIONS: FCCTX were less likely to be current tobacco users; other exposures were similar between these groups. Histopathologic differences highly suggestive of LS CRCs do not appear to be shared by FCCTX.


Assuntos
Neoplasias Colorretais Hereditárias sem Polipose/epidemiologia , Neoplasias Císticas, Mucinosas e Serosas/epidemiologia , Idoso , Neoplasias Colorretais Hereditárias sem Polipose/patologia , Comorbidade , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Neoplasias Císticas, Mucinosas e Serosas/patologia , Razão de Chances , Sistema de Registros , Inquéritos e Questionários
19.
Mol Hum Reprod ; 20(7): 701-8, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24723465

RESUMO

There has been growing interest in the role of viral infections and their association with adverse pregnancy outcomes. However, little is known about the impact viral infections have on the fetal membranes (FM). Toll-like receptors (TLR) are thought to play a role in infection-associated inflammation at the maternal-fetal interface. Therefore, the objective of this study was to characterize the cytokine profile and antiviral response in human FMs exposed to viral dsRNA, which activates TLR3, and viral ssRNA, which activates TLR8; and to determine the mechanisms involved. The viral dsRNA analog, Poly(I:C), induced up-regulated secretion of MIP-1α, MIP-1ß, RANTES and TNF-α, and down-regulated interleukin (IL)-2 and VEGF secretion. In contrast, viral ssRNA induced a broader panel of cytokines in the FMs by up-regulating the secretion of IL-1ß, IL-2, IL-6, G-CSF, MCP-1, MIP-1α, MIP-1ß, RANTES, TNF-α and GRO-α. Using inhibitory peptides against TLR adapter proteins, FM secretion of MIP-1ß and RANTES in response to Poly(I:C) was MyD88 dependent; MIP-1α secretion was dependent on MyD88 and TRIF; and TNF-α production was independent of MyD88 and TRIF. Viral ssRNA-induced FM secretion of IL-1ß, IL-2, IL-6, G-CSF, MIP-1α, RANTES and GRO-α was dependent on MyD88 and TRIF; MIP-1ß was dependent upon TRIF, but not MyD88; and TNF-α and MCP-1 secretion was dependent on neither. Poly(I:C), but not ssRNA, induced an FM antiviral response by up-regulating the expression of IFNß, myxovirus-resistance A, 2',5'-oligoadenylate synthetase and apolipoprotein B mRNA-editing enzyme-catalytic polypeptide-like 3G. These findings demonstrate that human FMs respond to two viral signatures by generating distinct inflammatory cytokine/chemokine profiles and antiviral responses through different mechanisms.


Assuntos
Citocinas/metabolismo , Membranas Extraembrionárias/efeitos dos fármacos , Poli I-C/farmacologia , RNA de Cadeia Dupla/farmacologia , RNA Viral/farmacologia , Membranas Extraembrionárias/metabolismo , Feminino , Humanos , Gravidez , Regulação para Cima/efeitos dos fármacos
20.
Phys Rev Lett ; 113(14): 144301, 2014 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-25325647

RESUMO

This Letter reports a technique for the imaging of acoustic nonlinearity. By contrasting the energy of the diffuse field produced through the focusing of an ultrasonic array by delayed parallel element transmission with that produced by postprocessing of sequential transmission data, acoustic nonlinearity local to the focal point is measured. Spatially isolated wave distortion is inferred without requiring interrogation of the wave at the inspection point, thereby allowing nonlinear imaging through depth.


Assuntos
Modelos Teóricos , Ultrassom/métodos , Acústica , Processamento de Imagem Assistida por Computador , Dinâmica não Linear , Termodinâmica
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA