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1.
Ultrasound Obstet Gynecol ; 63(3): 378-384, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-37594210

RESUMO

OBJECTIVES: The association between pregestational diabetes mellitus (PDM) and risk of congenital heart disease (CHD) is well recognized; however, the importance of glycemic control and other coexisting risk factors during pregnancy is less clear. We sought to determine the relative risk (RR) of major CHD (mCHD) among offspring from pregnancies complicated by PDM and the effect of first-trimester glycemic control on mCHD risk. METHODS: We determined the incidence of mCHD (requiring surgery within 1 year of birth or resulting in pregnancy termination or fetal demise) among registered births in Alberta, Canada. Linkage of diabetes status, maximum hemoglobin A1c (HbA1c) at < 16 weeks' gestation and other covariates was performed using data from the Alberta Perinatal Health Program registry. Risk of mCHD according to HbA1c was estimated as an adjusted RR (aRR), calculated using log-binomial modeling. RESULTS: Of 1412 cases of mCHD in 594 773 (2.37/1000) births in the study period, mCHD was present in 48/7497 with PDM (6.4/1000; RR, 2.8 (95% CI, 2.1-3.7); P < 0.0001). In the entire cohort, increased maternal age (aRR, 1.03 (95% CI, 1.02-1.04); P < 0.0001) and multiple gestation (aRR, 1.37 (95% CI, 1.1-1.8); P = 0.02) were also associated with mCHD risk, whereas maternal prepregnancy weight > 91 kg was not. The stratified risk for mCHD associated with HbA1c ≤ 6.1%, > 6.1-8.0% and > 8.0% was 4.2/1000, 6.8/1000 and 17.1/1000 PDM/gestational diabetes mellitus births, respectively; the aRR of mCHD associated with PDM and HbA1c > 8.0% was 8.5 (95% CI, 5.0-14.4) compared to those without diabetes and 5.5 (95% CI, 1.6-19.4) compared to PDM with normal HbA1c (≤ 6.1%). CONCLUSIONS: PDM is associated with a RR of 2.8 for mCHD, increasing to 8.5 in those with HbA1c > 8%. These data should facilitate refinement of referral indications for high-risk pregnancy screening. © 2023 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.


Assuntos
Aborto Induzido , Diabetes Gestacional , Cardiopatias Congênitas , Feminino , Gravidez , Humanos , Hemoglobinas Glicadas , Cardiopatias Congênitas/epidemiologia , Fatores de Risco
2.
BJOG ; 128(3): 603-613, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33135854

RESUMO

OBJECTIVE: To examine the association between age at menarche and risk of vasomotor menopausal symptoms (VMS) and whether midlife body mass index (BMI) modified the association. DESIGN: A pooled analysis of six cohort studies. SETTING: The International collaboration on the Life course Approach to reproductive health and Chronic disease Events (InterLACE). POPULATION: 18 555 women from the UK, USA and Australia. METHODS: VMS frequency data (never, rarely, sometimes and often) were harmonised from two studies (n = 13 602); severity data (never, mild, moderate and severe) from the other four studies (n = 4953). Multinominal logistic regression models were used to estimate relative risk ratios (RRRs) and 95% CIs adjusted for confounders and incorporated study as random effects. MAIN OUTCOME MEASURES: Hot flushes and night sweats. RESULTS: Frequency data showed that early menarche ≤11 years was associated with an increased risk of 'often' hot flushes (RRR 1.48, 95% CI 1.24-1.76) and night sweats (RRR 1.59, 95% CI 1.49-1.70) compared with menarche at ≥14 years. Severity data showed similar results, but appeared less conclusive, with RRRs of 1.16 (95% CI 0.94-1.42) and 1.27 (95% CI 1.01-1.58) for 'severe' hot flushes and night sweats, respectively. BMI significantly modified the association as the risk associated with early menarche and 'often' VMS was stronger among women who were overweight or obese than those of normal weight, while this gradient across BMI categories was not as strong with the risk of 'severe' VMS. CONCLUSIONS: Early age at menarche is a risk factor for VMS, particularly for frequent VMS, but midlife BMI may play an important role in modifying this risk. TWEETABLE ABSTRACT: Overweight and obesity exacerbate the risk of vasomotor symptoms associated with early menarche.


Assuntos
Fatores Etários , Fogachos/etiologia , Menarca/fisiologia , Menopausa/fisiologia , Sistema Vasomotor/fisiopatologia , Austrália/epidemiologia , Índice de Massa Corporal , Criança , Estudos de Coortes , Feminino , Fogachos/epidemiologia , Humanos , Hiperidrose/epidemiologia , Hiperidrose/etiologia , Modelos Logísticos , Pessoa de Meia-Idade , Obesidade/fisiopatologia , Razão de Chances , Fatores de Risco , Sudorese , Reino Unido/epidemiologia , Estados Unidos/epidemiologia
3.
Diabet Med ; 36(2): 237-242, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30499197

RESUMO

AIMS: To assess the association between vascular complications of diabetes and the risk of congenital malformations in pregnant women with Type 1 diabetes. METHODS: We conducted an observational retrospective cohort study in women with Type 1 diabetes who received care consecutively from three tertiary care diabetes-in-pregnancy clinics in Calgary, Alberta, Canada. Multivariable logistic regression was used to assess the association between vascular complications (retinopathy, nephropathy and pre-existing hypertension) and congenital malformations in offspring of women with Type 1 diabetes. RESULTS: Of 232 women with Type 1 diabetes, 49 (21%) had at least one vascular complication and there were 52 babies with congenital malformations. Maternal age (31.8 ± 5.0 vs. 29.4 ± 4.7 years, P < 0.01), diabetes duration (20.9 ± 6.7 vs. 11.2 ± 7.4 years, P < 0.01) and pre-eclampsia rate (12.5% vs. 1.3%, P < 0.01) were higher in mothers with vascular complications than in those without. Multivariable analyses showed that vascular complications were not associated with an increased risk of congenital malformations (odds ratio 1.16, 95% confidence interval 0.46 to 2.88). CONCLUSIONS: Vascular complications are common, occurring in one-fifth of pregnant women with Type 1 diabetes, and in this study do not appear to be associated with an increased risk of congenital malformations in children.


Assuntos
Anormalidades Congênitas/etiologia , Diabetes Mellitus Tipo 1/complicações , Angiopatias Diabéticas/complicações , Complicações Cardiovasculares na Gravidez , Gravidez em Diabéticas , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Idade Materna , Gravidez , Estudos Retrospectivos , Fatores de Risco
5.
Fam Pract ; 36(3): 284-290, 2019 05 23.
Artigo em Inglês | MEDLINE | ID: mdl-30452584

RESUMO

BACKGROUND: Poor geographical access to health services and routes to a cancer diagnosis such as emergency presentations have previously been associated with worse cancer outcomes. However, the extent to which access to GPs determines the route that patients take to obtain a cancer diagnosis is unknown. METHODS: We used a linked dataset of cancer registry and hospital records of patients with a cancer diagnosis between 2006 and 2010 across eight different cancer sites. Primary outcomes were defined as 'desirable routes to diagnosis' [screen-detected and 2-week wait (TWW) referrals] and 'less desirable routes' [emergency presentations and death certificate only (DCO)]. All other routes (GP referral, inpatient elective and other outpatient) were specified as the reference category. Geographical access was measured as travel time in minutes from patients to their GP, and multinomial logistic regression was used to estimate relative risk ratios (RRR). RESULTS: Longer travel was associated with increased risk of diagnosis via emergency and DCO, but decreased risk of diagnosis via screening and TWW. Patients travelling over 30 minutes had the highest risk of a DCO diagnosis, which was statistically significant for breast, colorectal, lung, prostate, stomach and ovarian cancers (compared with patients with travel times ≤10 minutes: RRR 5.89, 7.02, 2.30, 4.75, 10.41; P < 0.01 and 3.51, P < 0.05). DISCUSSION: Poor access to GPs may discourage early engagement with health services, decreasing the likelihood of screening uptake and increasing the likelihood of emergency presentations. Extra effort is needed to promote early diagnosis in more distant patients.


Assuntos
Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Neoplasias/diagnóstico , Neoplasias/epidemiologia , Atenção Primária à Saúde , Viagem/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Serviço Hospitalar de Emergência , Inglaterra/epidemiologia , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Sistema de Registros , Tempo para o Tratamento
6.
Fam Pract ; 35(2): 199-202, 2018 03 27.
Artigo em Inglês | MEDLINE | ID: mdl-29029123

RESUMO

Background: Ovarian cancer presents later in the UK compared to economically similar countries. National guidance suggests measuring CA125 in primary care as a means of bringing patients to specialist attention. Aim: To investigate the outcome of CA125 values measured in accordance with this policy. Setting and design: Examination of the laboratory records of female patients from the usual catchment population of one general hospital in whom CA125 was measured from primary care in a calendar year. Methods: Those with values >35 u/ml were identified. Electronic records within the hospital were interrogated to identify what further evaluation had been undertaken whether ovarian or primary peritoneal cancer had been diagnosed or what other pathology was identified. We also reviewed the CA125 measurement history of patients diagnosed over 3 years by any route. Results: One hundred and sixty-four new cases of CA125 ≥35 u/ml were found. Further information was available for 152 of them. Sixteen had ovarian or primary peritoneal cancer and 16 had other cancers. In 50 no cause for the abnormality was found. The remainder had various non-malignant conditions. The specificity for carcinoma of ovary/primary peritoneal carcinoma was 95.4% [95% confidence interval: 94.8-96.0). In a 3-year period, 65 patients were diagnosed with ovarian or primary peritoneal cancer, 5 had values of CA125 between 20 and 35 u/ml shortly before diagnosis. Conclusions: The CA125 level is a useful diagnostic test for ovarian cancer which has been embraced by primary care but higher sensitivity for earlier disease will require strategies to improve the specificity.


Assuntos
Antígeno Ca-125/sangue , Neoplasias Ovarianas/sangue , Neoplasias Ovarianas/diagnóstico , Biomarcadores Tumorais/sangue , Registros Eletrônicos de Saúde , Feminino , Humanos , Guias de Prática Clínica como Assunto , Valor Preditivo dos Testes , Atenção Primária à Saúde/estatística & dados numéricos , Reino Unido
7.
Surgeon ; 16(2): 89-93, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27594350

RESUMO

BACKGROUND: Endovascular aneurysm repair is a minimally-invasive method for the treatment of abdominal aortic aneurysms. For aneurysms that involve the visceral arteries, a custom-made stent graft with fenestrations for the branch arteries is required. The purpose of the current study is to evaluate the structural impact of misaligned fenestrations with respect to luminal patency and proximal aortic neck apposition in an in vitro model. METHODS: A custom apparatus was used to evaluate seven Anaconda and three Zenith fenestrated stent grafts. All stent grafts were evaluated at 10° increments of stent/fenestration misalignment up to 80°. Images were captured at each interval and the luminal cross-sectional area and wall apposition were measured. RESULTS: The Anaconda stent graft, which has an unsupported main body, demonstrated a linear reduction in luminal patency at increasing angles of misalignment (P < 0.0001). Stent/fenestration misalignments of 20° and 80° resulted in decreases in mean luminal patency of 14% and 54% respectively. The Zenith stent graft demonstrated a similar decrease in luminal patency, starting at misalignments of ≥40° (P < 0.0001). However, with stent/fenestration misalignments of ≥30°, apposition between the Zenith stent graft and the simulated aortic neck was compromised suggesting the creation of a type Ia endoleak. CONCLUSIONS: Both the Anaconda and Zenith devices behave adversely at extreme angles of misalignment with luminal narrowing in the Anaconda device and loss of wall apposition in the Zenith device; however, both stent grafts appear to be equivalent at low angles of misalignment.


Assuntos
Aneurisma da Aorta Abdominal/cirurgia , Implante de Prótese Vascular/efeitos adversos , Prótese Vascular , Procedimentos Endovasculares/efeitos adversos , Implante de Prótese Vascular/métodos , Procedimentos Endovasculares/métodos , Humanos , Modelos Anatômicos , Modelos Cardiovasculares , Desenho de Prótese , Falha de Prótese , Stents , Resultado do Tratamento
8.
MMWR Morb Mortal Wkly Rep ; 66(10): 278-281, 2017 Mar 17.
Artigo em Inglês | MEDLINE | ID: mdl-28301453

RESUMO

On September 8, 2015, the District of Columbia Department of Health (DCDOH) received a call from a person who reported experiencing gastrointestinal illness after eating at a District of Columbia (DC) restaurant with multiple locations throughout the United States (restaurant A). Later the same day, a local emergency department notified DCDOH to report four persons with gastrointestinal illness, all of whom had eaten at restaurant A during August 30-September 5. Two patients had laboratory-confirmed Salmonella group D by stool culture. On the evening of September 9, a local newspaper article highlighted a possible outbreak associated with restaurant A. Investigation of the outbreak by DCDOH identified 159 patrons who were residents of 11 states and DC with gastrointestinal illness after eating at restaurant A during July 1-September 10. A case-control study was conducted, which suggested truffle oil-containing food items as a possible source of Salmonella enterica serotype Enteritidis infection. Although several violations were noted during the restaurant inspections, the environmental, laboratory, and traceback investigations did not confirm the contamination source. Because of concern about the outbreak, the restaurant's license was suspended during September 10-15. The collaboration and cooperation of the public, media, health care providers, and local, state, and federal public health officials facilitated recognition of this outbreak involving a pathogen commonly implicated in foodborne illness.


Assuntos
Surtos de Doenças , Óleos , Intoxicação Alimentar por Salmonella/epidemiologia , Salmonella enteritidis/isolamento & purificação , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Criança , District of Columbia/epidemiologia , Fezes/microbiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Restaurantes , Adulto Jovem
9.
J Fish Biol ; 88(4): 1460-74, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26932125

RESUMO

The purpose of this study was to develop a real-time PCR assay to specifically identify lake whitefish Coregonus clupeaformis in larval fish assemblages based on a 122 bp amplicon from the mitochondrial genome. The efficiency of the reaction, as calculated from the standard curve, was 90.77% with the standard curve having an r(2) value of 0.998. Specificity of the assay provided single melt peak in a melt-curve analysis and amplification of only the target species. The assay successfully identified target DNA in as low as 0.1% proportion of a DNA mixture. This assay was designed on the portable Smart Cycler II platform and can be used in both field and laboratory settings to successfully identify C. clupeaformis.


Assuntos
Reação em Cadeia da Polimerase em Tempo Real , Salmonidae/classificação , Animais , Código de Barras de DNA Taxonômico , Primers do DNA/genética , DNA Mitocondrial/genética , Great Lakes Region , Lagos , Especificidade da Espécie
10.
Lancet Oncol ; 16(12): 1231-72, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26431866

RESUMO

The nature of cancer control is changing, with an increasing emphasis, fuelled by public and political demand, on prevention, early diagnosis, and patient experience during and after treatment. At the same time, primary care is increasingly promoted, by governments and health funders worldwide, as the preferred setting for most health care for reasons of increasing need, to stabilise health-care costs, and to accommodate patient preference for care close to home. It is timely, then, to consider how this expanding role for primary care can work for cancer control, which has long been dominated by highly technical interventions centred on treatment, and in which the contribution of primary care has been largely perceived as marginal. In this Commission, expert opinion from primary care and public health professionals with academic and clinical cancer expertise­from epidemiologists, psychologists, policy makers, and cancer specialists­has contributed to a detailed consideration of the evidence for cancer control provided in primary care and community care settings. Ranging from primary prevention to end-of-life care, the scope for new models of care is explored, and the actions needed to effect change are outlined. The strengths of primary care­its continuous, coordinated, and comprehensive care for individuals and families­are particularly evident in prevention and diagnosis, in shared follow-up and survivorship care, and in end-of-life care. A strong theme of integration of care runs throughout, and its elements (clinical, vertical, and functional) and the tools needed for integrated working are described in detail. All of this change, as it evolves, will need to be underpinned by new research and by continuing and shared multiprofessional development.


Assuntos
Atenção à Saúde/métodos , Necessidades e Demandas de Serviços de Saúde , Neoplasias/terapia , Atenção Primária à Saúde/métodos , Humanos
11.
Ann Oncol ; 26(12): 2437-41, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26416895

RESUMO

BACKGROUND: Guidelines on the use of haematopoietic colony-stimulating factors for patients having adjuvant chemotherapy for breast cancer are designed to minimise the risk of neutropaenic infection (Smith TJ, Khatcheressian J, Lyman GH et al. Update of recommendations for the use of white blood cell growth factors: an evidence-based clinical practice guideline. J Clin Oncol 2006; 3: 187-205; Aapro MS, Bohlius J, Cameron DA et al. Effect of primary prophylactic G-CSF use on systemic therapy administration for elderly breast cancer patients. Breast Cancer Res Treat 2011; 47: 8-32; Carlson RW, Allred DC, Anderson BO et al. Breast cancer. Clinical practice guidelines in oncology. J Natl Compr Canc Netw 2009; 7: 122-192). Non-randomised data suggest that the achievement of planned dose intensity (DI) may have an important effect on survival. This trial compared the effects of granulocyte colony-stimulating factor, GCSF, against standard management following a first neutropaenic event (NE) in achieving planned DI. PATIENTS AND METHODS: Adult patients receiving adjuvant or neoadjuvant chemotherapy were randomised following a first NE, defined as hospitalisation due to neutropaenic fever, an absolute neutrophil count (ANC) ≤1.5 × 10(9)/l requiring treatment delay or dose reduction of 15% or more of planned dose. The study was initially planned to enrol 816 patients to detect a difference of 10%. This was difficult to achieve in the timeframe and the trial size was amended. Thus, 407 patients were randomly assigned to filgrastim for 7 days or pegfilgrastim versus standard care. The amended study was designed to have 80% power to detect an absolute difference of 14% of planned DI between the two groups. RESULTS: Most regimens were anthracycline-based many of which included a sequential taxane and/or were in clinical trials. Around 82.7% had an NE in the first three cycles. A total of 401 had calculable relative dose intensity (RDI) data. A target of 85% planned RDI was achieved in only 50% of patients in the control arm compared with 75% in the GCSF arm (P < 0.0001). A secondary end point revealed a reduction in post-randomisation NEs, 65.7% controls versus 18.2% with GCSF. CONCLUSIONS: Secondary intervention with GCSF showed a statistically significant improvement in the achievement of adequate RDI in non-intensive regimens. This may have important clinical implications for outcome.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/epidemiologia , Filgrastim/administração & dosagem , Profilaxia Pós-Exposição/métodos , Prevenção Secundária/métodos , Adulto , Neoplasias da Mama/diagnóstico , Quimioterapia Adjuvante/métodos , Relação Dose-Resposta a Droga , Feminino , Fator Estimulador de Colônias de Granulócitos/administração & dosagem , Humanos , Reino Unido/epidemiologia
12.
Mol Psychiatry ; 19(6): 724-32, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23999524

RESUMO

Anorexia nervosa (AN) and related eating disorders are complex, multifactorial neuropsychiatric conditions with likely rare and common genetic and environmental determinants. To identify genetic variants associated with AN, we pursued a series of sequencing and genotyping studies focusing on the coding regions and upstream sequence of 152 candidate genes in a total of 1205 AN cases and 1948 controls. We identified individual variant associations in the Estrogen Receptor-ß (ESR2) gene, as well as a set of rare and common variants in the Epoxide Hydrolase 2 (EPHX2) gene, in an initial sequencing study of 261 early-onset severe AN cases and 73 controls (P=0.0004). The association of EPHX2 variants was further delineated in: (1) a pooling-based replication study involving an additional 500 AN patients and 500 controls (replication set P=0.00000016); (2) single-locus studies in a cohort of 386 previously genotyped broadly defined AN cases and 295 female population controls from the Bogalusa Heart Study (BHS) and a cohort of 58 individuals with self-reported eating disturbances and 851 controls (combined smallest single locus P<0.01). As EPHX2 is known to influence cholesterol metabolism, and AN is often associated with elevated cholesterol levels, we also investigated the association of EPHX2 variants and longitudinal body mass index (BMI) and cholesterol in BHS female and male subjects (N=229) and found evidence for a modifying effect of a subset of variants on the relationship between cholesterol and BMI (P<0.01). These findings suggest a novel association of gene variants within EPHX2 to susceptibility to AN and provide a foundation for future study of this important yet poorly understood condition.


Assuntos
Anorexia Nervosa/genética , Epóxido Hidrolases/genética , Variação Genética , Adulto , Anorexia Nervosa/metabolismo , Índice de Massa Corporal , Estudos de Casos e Controles , Colesterol/metabolismo , Estudos de Coortes , Feminino , Predisposição Genética para Doença , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único , Psicometria , População Branca/genética , Adulto Jovem
13.
Transpl Infect Dis ; 17(6): 915-20, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26437250

RESUMO

Microsphaeropsis arundinis, a dematiaceous mold, is emerging as a cause of skin and soft tissue infection in immunocompromised hosts. Diagnosis is challenging because of the difficulty in identifying Microsphaeropsis species morphologically and few data are available to guide optimal management. We report 3 renal transplant recipients with M. arundinis soft tissue infection, where the etiological agent was diagnosed using DNA sequencing, and who were successfully treated with prolonged courses of extended-spectrum triazole antifungal agents.


Assuntos
Ascomicetos/isolamento & purificação , Transplante de Rim/efeitos adversos , Micoses/microbiologia , Infecções dos Tecidos Moles/microbiologia , Adulto , Idoso , Antifúngicos/uso terapêutico , Feminino , Humanos , Hospedeiro Imunocomprometido , Masculino , Micoses/tratamento farmacológico , Infecções dos Tecidos Moles/tratamento farmacológico , Infecções dos Tecidos Moles/patologia
14.
Qual Life Res ; 24(6): 1471-81, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25407634

RESUMO

PURPOSE: The development of patient-centred approaches and of reduction in consumption strategies in alcohol use disorder requires giving a larger place to qualitative assessments that are closer to patients' concerns and more clinically relevant than drinking outcomes and generic health-related quality of life instrument. Our purpose was to develop from patients input the Alcohol Quality of Life Scale (AQoLS), a disease-specific measure for alcohol use disorder (AUD). METHODS: Concept elicitation focus groups were conducted with AUD patients in the UK and France. Thematic analysis was used to identify key areas of impact of AUD, and draft items were developed to capture these issues. The draft items underwent expert review to ensure clinical and cross-cultural applicability. Two iterative rounds of cognitive debriefing interviews were conducted with AUD patients in both countries, to assess face and content validity. RESULTS: From focus groups conducted with 38 AUD patients, seven areas of impact emerged, forming the basis for the AQoLS: relationships, activities, looking after self, emotional impact, control, living conditions, and sleep. An initial pool of 90 items was reduced to 50 following the review process. In cognitive interviews, the measure took less than 10 min to complete, and patients reported that items were relevant to their experience. Following Round 1 interviews (n = 16), 14 items were removed because patients felt they were unclear or uneasy to respond to, 2 were combined, 7 were revised, and 4 new items were added. The recall period of 2 weeks was changed to 4 weeks, based on patient comments. Following Round 2 interviews (n = 15), 5 items were removed and 3 were modified to produce the 34-item AQoLS. CONCLUSION: As the only de novo measure of health-related quality of life developed specifically for AUD, the AQoLS offers the potential of increased sensitivity to show the effectiveness of therapeutic interventions from the patient's perspective.


Assuntos
Alcoolismo/psicologia , Nível de Saúde , Avaliação de Resultados da Assistência ao Paciente , Qualidade de Vida , Adulto , Idoso , Feminino , Grupos Focais , França , Humanos , Masculino , Pessoa de Meia-Idade , Psicometria , Autorrelato , Inquéritos e Questionários , Reino Unido , Adulto Jovem
15.
J Oral Rehabil ; 42(5): 323-30, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25600826

RESUMO

The combination of bite force and jaw muscle electromyography (EMG) provides an insight into the performance of the stomatognathic system, especially in relation to dynamic movement tasks. Literature has extensively investigated possible methods for normalising EMG data encapsulating many different approaches. However, bite force literature trends towards normalising EMG to a maximal voluntary contraction (MVC), which could be difficult for ageing populations or those with poor dental health or limiting conditions such as temporomandibular disorder. The objectives of this study were to (i) determine whether jaw-closing muscle activity is linearly correlated with incremental submaximal and maximal bite force levels and (ii) assess whether normalising maximal and submaximal muscle activity to that produced when performing a low submaximal bite force (20 N) improves repeatability of EMG values. Thirty healthy adults (15 men, 15 women; mean age 21 ± 1·2 years) had bite force measurements obtained using a custom-made button strain gauge load cell. Masseter and anterior temporalis muscle activities were collected bilaterally using surface EMG sensors whilst participants performed maximal biting and three levels of submaximal biting. Furthermore, a small group (n = 4 females) were retested for reliability purposes. Coefficients of variation and intra-class correlation coefficients showed markedly improved reliability when EMG data were normalised compared to non-normalised. This study shows that jaw muscle EMG may be successfully normalised to a very low bite force. This may open possibilities for comparisons between at-risk sample groups that may otherwise find it difficult to produce maximal bite force values.


Assuntos
Força de Mordida , Eletromiografia/métodos , Músculos da Mastigação/fisiologia , Adolescente , Adulto , Análise do Estresse Dentário , Feminino , Humanos , Masculino , Contração Muscular/fisiologia , Reprodutibilidade dos Testes , Processamento de Sinais Assistido por Computador
16.
BJOG ; 121(12): 1564-73, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24735184

RESUMO

OBJECTIVE: Previous studies describing menses duration and heaviness of flow during the menopausal transition (MT) have been short in duration and limited to white women. We estimated the frequency of and risk factors for prolonged bleeding, spotting and heavy bleeding during the MT in an ethnically diverse population. DESIGN: Prospective community-based cohort study. SETTING USA: southeastern Michigan, northern California and Los Angeles, California. POPULATION: A total of 1320 midlife women who participated in the Study of Women's Health Across the Nation (SWAN) Menstrual Calendar Substudy. Participants included African-American, white, Chinese, and Japanese women. METHODS: Women completed daily menstrual calendars from 1996 to 2006, and provided information on hormone therapy, smoking and physical activity. Annual measures included height and weight. Kaplan-Meier survival analysis and multivariable regression were used to analyse the data. MAIN OUTCOME MEASURES: Menses of 10+ days, spotting of 6+ days, heavy bleeding of 3+ days. RESULTS: At least three occurrences of menses 10+ days was reported by 77.7% (95% confidence interval [95% CI] 56.7-93.2), of 6+ days of spotting by 66.8% (95% CI 55.2-78.0) and of 3+ days of heavy bleeding by 34.5% (95% CI 30.2-39.2) of women. Menses of 10+ days, 6+ days of spotting, and 3+ days of heavy bleeding were associated with MT stage, uterine fibroids, hormone use and ethnicity. Body mass index was associated with 3+ days of heavy bleeding. CONCLUSIONS: These data provide clinicians and women with important information about the expected frequency of prolonged and heavy bleeding and spotting during the menopausal transition that may facilitate clinical decision making.


Assuntos
Menopausa/etnologia , Menorragia/etnologia , Menstruação/etnologia , Adulto , Negro ou Afro-Americano , Asiático , Feminino , Seguimentos , Humanos , Estimativa de Kaplan-Meier , Menopausa/fisiologia , Menstruação/fisiologia , Pessoa de Meia-Idade , Análise Multivariada , Estudos Prospectivos , Autorrelato , Estados Unidos/epidemiologia , População Branca
17.
Int J Gynecol Cancer ; 24(4): 676-81, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24651630

RESUMO

OBJECTIVE: New strategies are required to rapidly identify novel cytostatic agents before embarking on large randomized trials. This study investigates whether a change in rate of rise (slope) of serum CA125 from before to after starting a novel agent could be used to identify cytostatic agents. Tamoxifen was used to validate this hypothesis. METHODS: Asymptomatic patients with relapsed ovarian cancer who had responded to chemotherapy were enrolled and had CA125 measurements taken every 4 weeks, then more frequently when rising. Once levels reached 4 times the upper limit of normal or nadir, they started continuous tamoxifen 20 mg daily, as well as fortnightly CA125 measurements until symptomatic progression. Because of the potentially nonlinear relationship of CA125 over time, it was felt that to enable normal approximations to be utilized a natural logarithmic standard transformation [ln(CA125)] was the most suitable to improve linearity above the common logarithmic transformation to base 10. RESULTS: From 235 recruited patients, 81 started tamoxifen and had at least 4 CA125 measurements taken before and 4 CA125 measurements taken after starting tamoxifen, respectively. The mean regression slopes from using at least 4 1n(CA125) measurements immediately before and after starting tamoxifen were 0·0149 and 0·0093 [ln(CA125)/d], respectively. This difference is statistically significant, P = 0·001. Therefore, in a future trial with a novel agent, at least as effective as tamoxifen, using this effect size, the number of evaluable patients needed, at significance level of 5% and power of 80%, is 56. CONCLUSIONS: Further validation of this methodology is required, but there is potential to use comparison of mean regression slopes of ln(CA125) as an interim analysis measure of efficacy for novel cytostatic agents in relapsed ovarian cancer.


Assuntos
Antineoplásicos Hormonais/uso terapêutico , Biomarcadores Tumorais/sangue , Antígeno Ca-125/sangue , Citostáticos/uso terapêutico , Recidiva Local de Neoplasia/tratamento farmacológico , Neoplasias Ovarianas/tratamento farmacológico , Tamoxifeno/uso terapêutico , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/sangue , Recidiva Local de Neoplasia/patologia , Estadiamento de Neoplasias , Neoplasias Ovarianas/sangue , Neoplasias Ovarianas/patologia , Prognóstico , Estudos Prospectivos
18.
Mar Pollut Bull ; 205: 116592, 2024 Jun 24.
Artigo em Inglês | MEDLINE | ID: mdl-38917493

RESUMO

Steller sea lions (SSL) are sentinels for monitoring environmental contaminants in remote areas of the Aleutian Islands, Alaska. Therefore, concentrations of several organochlorines (OCs) were measured in blood from 123 SSL pups sampled from 3 regions; the western Aleutian Islands (WAI), central Aleutian Islands (CAI), and the central Gulf of Alaska. Blood, blubber, and milk from 12 adult female SSL from WAI, CAI and southeast Alaska also were analyzed. Findings included the following. SSL pups had higher concentrations of some OCs and mercury (Hg) on rookeries in the WAI than those more easterly. Pups had significantly higher blood concentrations of many OC classes than adult females sampled within the same region; some pups had PCB concentrations exceeding thresholds of concern (∑PCBs >8600 ng/g lw). ∑PCB concentration in pup whole blood was positively correlated with the trophic marker, δ15N within the regions sampled, along with two PCB congeners (PCB138 and PCB153). This suggests that the dams of pups with higher ∑PCBs, PCB138, and PCB153 concentrations were feeding on more predatory prey. Adult female blubber ∑DDT and hexachlorocyclohexane concentrations were also positively correlated with δ15N values. Several pups (mostly from WAI) had blood Hg concentrations and/or blood PCB concentrations (surrogate for overall OC exposures) of concern. The finding that WAI SSL pups have been exposed to multiple contaminants calls for future investigation of their cumulative exposure to a mixture of contaminants especially their transplacental and then transmammary exposure routes.

20.
Int J Obes (Lond) ; 37(11): 1427-34, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23459323

RESUMO

OBJECTIVE: Depression is associated with increased risk for obesity and worse weight loss treatment outcomes. The purpose of the present study was to test the hypothesis that delivering evidence-based behavior therapy for depression before a lifestyle weight loss intervention improves both weight loss and depression. DESIGN: In a randomized controlled trial, obese women with major depressive disorder (N=161, mean age=45.9 (s.d.: 10.8) years) were randomized to brief behavior therapy for depression treatment followed by a lifestyle intervention (BA) or a lifestyle intervention only (LI). Follow-up occurred at 6 and 12 months. Main outcome measures included weight loss and depression symptoms. RESULTS: Intention-to-treat analyses revealed both conditions lost significant weight, but no differences between conditions in weight change at 6 months (BA=-3.0%, s.e.=-0.65%; LI=-3.7%, s.e.=0.63%; P=0.48) or 12 months (BA=-2.6%, s.e.=0.77%; LI=-3.1%, s.e.=0.74%; P=0.72). However, the BA condition evidenced significantly greater improvement in Beck Depression Inventory-II scores relative to the LI condition at both 6 months (BA mean change=-12.5, s.d.=0.85; LI mean change=-9.2, s.d.=0.80, P=0.005) and 12 months (BA mean change=-12.6, s.d.=0.97; LI mean change=-9.9, s.d.=0.93; P=0.045). Participants who experienced depression remission by 6 months (61.2%) lost greater weight (mean=-4.31%; s.e.=0.052) than those who did not (39.7%; mean=-2.47%, s.e.=0.53; P=.001). CONCLUSION: Adding behavior therapy to a lifestyle intervention results in greater depression remission but does not improve weight loss within 1 year. Improvement in depression is associated with greater weight loss.


Assuntos
Terapia Comportamental , Depressão/terapia , Obesidade/terapia , Redução de Peso , Programas de Redução de Peso , Adulto , Terapia Comportamental/métodos , Comorbidade , Depressão/epidemiologia , Depressão/reabilitação , Medicina Baseada em Evidências , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Obesidade/epidemiologia , Obesidade/psicologia , Comportamento de Redução do Risco , Resultado do Tratamento , Estados Unidos/epidemiologia , Programas de Redução de Peso/métodos
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