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1.
Health Educ Behav ; 50(1): 41-48, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36314367

RESUMO

Body mass index (BMI) screenings are conducted as part of Head Start's (HS) health and nutrition assessments. Weight status classifications, which rely on the accuracy of the BMI measurements, are communicated to caregivers to engage them in health behavior change. Limited qualitative research has been conducted on the procedures for BMI measurement and reporting in HS programs. Interviews (n=28) were conducted with HS health/nutrition managers in Ohio and North Carolina to understand the processes used to conduct BMI screenings and disseminate reports and identify related needs. Themes included Personnel, Equipment, and Training for BMI Measurements; Classifying and Communicating BMI and Referrals; Professional Development Opportunities; and Resource, Training/Policy Needs to Support BMI Practices. Programs need additional resources to implement BMI measurement training and improve data accuracy and entry. Clarification of the referral/follow-up process and training around communicating with caregivers is also needed to better support families in implementing behavior change.


Assuntos
Comportamentos Relacionados com a Saúde , Estado Nutricional , Humanos , Índice de Massa Corporal , North Carolina , Ohio
2.
Matern Child Health J ; 26(11): 2271-2282, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36125670

RESUMO

OBJECTIVES: To describe beverage behaviors among preschooler-parent dyads and explore correlates with preschooler's beverage behaviors. METHODS: This exploratory, cross-sectional study includes a convenience sample of 202 parents of preschoolers surveyed from four Head Start programs in Virginia and Ohio. Measurements included parent-child beverage behaviors, parent beverage perceptions, parent beverage rules, home beverage availability, and demographics. Analyses included descriptive statistics, correlations, Kruskal-Wallis test, and Quade's non-parametric ANCOVA tests. RESULTS: Mean sugar-sweetened beverage (SSB; i.e., regular soda, sweetened fruit drinks, sports/energy drinks, and coffee/tea with sugar) intake was 1.3 (SD = 1.4) and 2.3 (SD = 2.0) times/day for preschoolers and parents, respectively. When considering all sugary drink sources [i.e., summing SSB with flavored milk and 100% fruit juice (FJ)], the mean frequency increased to 3.2 (SD = 2.1) and 3.6 (SD = 2.4) times/day, respectively, for preschoolers and parents. A significant positive correlation was observed between preschooler-parent dyads for SSB (r = 0.406, p < 0.001) and for all sugary drinks (r = 0.572, p < 0.001). Parents who were younger, single, less educated, and with lower income had preschoolers with significantly higher SSB and all sugary drink intake (all p < 0.05). Significant correlates with preschoolers' beverage behaviors also included parent perceived behavioral control (SSB: p = 0.003, 100% FJ: p = 0.008, water: p < 0.0001), parenting practices (SSB: p = 0.022), and home availability (SSB: p = 0.011, 100% FJ: p < 0.001, water: p < 0.001). CONCLUSIONS: This study highlights excessive SSB and all sugary drink consumption among Head Start preschooler-parent dyads. Also, intervention targets to improve preschooler's beverage behaviors are identified, including efforts to improve parent's beverage behaviors, perceived behavioral control, parenting practices, and the home environment.


Assuntos
Bebidas , Café , Humanos , Estudos Transversais , Pais , Açúcares , Chá , Água
3.
J Eur Acad Dermatol Venereol ; 36(12): 2393-2400, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35920762

RESUMO

BACKGROUND: Psoriasis is a chronic immune-mediated inflammatory skin disease that often leads to a diminished quality of life. Goals of treating patients with psoriasis have shifted with more focus on achieving near or complete clearance of the skin. Guselkumab, a fully human monoclonal antibody targeting interleukin-23, is effective in treating moderate-to-severe psoriasis. OBJECTIVE: To describe the baseline characteristics of patients with moderate-to-severe psoriasis achieving super-response (Psoriasis Area and Severity Index [PASI] 100 response at Weeks 20 and 28) after commencing guselkumab treatment. METHODS: Pooled data from VOYAGE 1 and VOYAGE 2 studies identified super-response; baseline demographic, disease and pharmacokinetic characteristics were compared with non-super-response. A stepwise logistic regression analysis identified which factors were potentially predictive of super-response status, with significance level of 0.1. RESULTS: A subset of patients randomized to guselkumab comprised this post hoc analysis (n = 664); 271 patients achieved super-response vs. 393 with non-super-response. Patient age at study entry and baseline body weight (≤90 kg vs. >90 kg), PASI, and Investigator's Global Assessment (IGA) score were significant predictors of super-response status, with odds ratios (95% confidence intervals) of 0.98 (0.967-0.993; P = 0.003), 1.42 (1.026-1.977; P = 0.034), 0.97 (0.955-0.993; P = 0.007) and 0.66 (0.433-0.997; P = 0.048), respectively. More patients with super-response achieved an early response: Week 2 PASI 75 (5.5% vs. 1.8%) and Week 8 PASI 100 (22.5% vs. 3.3%) vs. non-super-response. Median serum guselkumab concentrations through Week 28 were slightly greater in patients with super-response vs. non-super-response. CONCLUSION: Guselkumab was more likely to achieve early clinical responses (complete skin clearance) in younger patients, less obese patients and patients with less severe psoriasis.


Assuntos
Psoríase , Qualidade de Vida , Humanos , Adalimumab/uso terapêutico , Peso Corporal , Método Duplo-Cego , Índice de Gravidade de Doença , Resultado do Tratamento , Ensaios Clínicos Controlados Aleatórios como Assunto
4.
Acad Emerg Med ; 29(11): 1290-1300, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-35904003

RESUMO

OBJECTIVE: Deaf and hard-of-hearing (DHH) patients are understudied in emergency medicine health services research. Theory and limited evidence suggest that DHH patients are at higher risk of emergency department (ED) utilization and poorer quality of care. This study assessed ED condition acuity, length of stay (LOS), and acute ED revisits among DHH patients. We hypothesized that DHH patients would experience poorer ED care outcomes. METHODS: We conducted a retrospective chart review of a single health care system using data from a large academic medical center in the southeast United States. Data were received from the medical center's data office, and we sampled patients and encounters from between June 2011 and April 2020. We compared DHH American Sign Language (ASL) users (n = 108), DHH English speakers (n = 358), and non-DHH English speakers (n = 302). We used multilevel modeling to assess the differences among patient segments in outcomes related to ED use and care. RESULTS: As hypothesized, DHH ASL users had longer ED LOS than non-DHH English speakers, on average 30 min longer. Differences in ED condition acuity, measured through Emergency Severity Index and triage pain scale, were not statistically significant. DHH English speakers represented a majority (61%) of acute ED revisit encounters. CONCLUSIONS: Our study identified that DHH ASL users have longer ED LOS than non-DHH English speakers. Additional research is needed to further explain the association between DHH status and ED care outcomes (including ED LOS and acute revisit), which may be used to identify intervention targets to improve health equity.


Assuntos
Pessoas com Deficiência Auditiva , Humanos , Serviço Hospitalar de Emergência , Tempo de Internação , Estudos Retrospectivos , Triagem , Estados Unidos
5.
J Nutr Health Aging ; 25(10): 1229-1234, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34866150

RESUMO

OBJECTIVES: The Scored Patient-Generated Subjective Global Assessment (PG-SGA) and Edmonton Frail Scale (EFS) are widely used in acute care settings to assess nutritional and frailty status, respectively. We aimed to determine whether the scored PG-SGA can identify pre-frailty and frailty status, to simultaneously evaluate malnutrition and frailty in clinical practice. DESIGN: Cross-sectional study. SETTINGS AND PARTICIPANTS: A convenience sample of 329 consecutive patients admitted to an acute medical unit in South Australia. MEASUREMENTS: Nutritional and frailty status were ascertained with scored PG-SGA and EFS, respectively. Optimal cut-off scores to identify pre-frailty and frailty were determined by calculating the Scored PG-SGA's sensitivity, specificity, positive and negative predictive values, Youden Index (YI), Liu index, Receiver Operator Curves (ROC) and Area Under Curve (AUC). Nutritional status and patient characteristics were analysed according to frailty categories. RESULTS: The optimal cut-off PG-SGA score as determined by the highest YI, to identify both pre-frailty and frailty was >3, with a sensitivity of 0.711 and specificity of 0.746. The AUC was 0.782 (95% CI 0.731-0.833). In this cohort, 64% of the patients were well-nourished, 26% were moderately malnourished and 10% were severely malnourished. Forty-three percent, 24% and 33% of the patients were classified as robust, pre-frail and frail, respectively. Bivariate analysis showed that those robust were significantly younger than those who were pre-frail (-2.8, 95% CI -5.5 to -0.1, p=0.036) or frail (-3.4, 95% CI -5.9 to -1.0, p=0.002). Robust patients had significantly lower Scored PG-SGA than those who were pre-frail (-2.5, 95%CI -3.8 to -1.1, p<0.001) or frail (-4.9, 95% CI -6.1 to -3.7, p<0.001). CONCLUSION: The Scored PG-SGA is moderately sensitive in identifying pre-frailty/frailty in older hospitalized adults and can be useful in identifying both conditions concurrently.


Assuntos
Fragilidade , Desnutrição , Idoso , Estudos Transversais , Idoso Fragilizado , Fragilidade/diagnóstico , Avaliação Geriátrica , Humanos , Desnutrição/diagnóstico , Avaliação Nutricional , Estado Nutricional
6.
J Nurs Meas ; 29(3): 491-504, 2021 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-34518425

RESUMO

BACKGROUND: College students are a priority population for health insurance literacy interventions. Yet, there are few psychometric studies on measuring health insurance knowledge - a core construct of health insurance literacy. METHODS: We administered a health insurance survey to 2,250 college students. We applied Classical Test Theory and Item Response Theory methods to estimate psychometric properties of the Kaiser Family Foundation's 10-item health insurance knowledge quiz. RESULTS: The scale is unidimensional, and a two-parameter logistic model best fit the data. IRT estimates indicated varying item discriminations (a range: 0.717-2.578) and difficulties (b range: -0.913-1.790). Precision of measurement was maximized for students half a standard deviation below the mean (θ = -0.686) health insurance knowledge ability. CONCLUSIONS: This scale can be used to identify gaps in health insurance knowledge among college students and be applied in clinical and community health education practice.


Assuntos
Letramento em Saúde , Humanos , Seguro Saúde , Psicometria/métodos , Reprodutibilidade dos Testes , Inquéritos e Questionários
7.
J Nutr Educ Behav ; 52(3): 281-289, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31564520

RESUMO

OBJECTIVE: The purpose was to explore contributing factors of sugar-sweetened beverage (SSB) intake in Latinx residing in Southwest Ohio to inform the development of future interventions. DESIGN: This was a qualitative study utilizing focus groups. PARTICIPANTS AND SETTING: Latinx participants were recruited from local churches, community centers, and universities to participate in 1 of 6 focus groups (n = 43). PHENOMENON OF INTEREST: Individual, relational, community, and sociocultural factors related to SSB consumption. ANALYSIS: Constant comparative analysis of focused, axial, and selective coding to develop themes. Memo writing assisted with conceptualization of the data. Themes mirrored the Socioecological Model. RESULTS: SSB consumption is rooted in cultural identity and social norms. Other factors include availability, taste, and energy. Suggestions for change consisted of finding acceptable substitutions, creating socially appropriate support networks, developing community and workplace policies, and countering the impact of advertising. CONCLUSION AND IMPLICATIONS: This study highlights factors across the ecological model that contribute to Latinx SSB consumption in Southwest Ohio. Similar studies in other geographical areas in the US are warranted to confirm these findings. Individual, intrapersonal, community, and societal factors may be utilized in tailoring SSB interventions for Latinx adults to enhance cultural capital and create behavior change. Future interventions may explore and test these factors using the Model of Cultural Change.


Assuntos
Comportamento Alimentar/etnologia , Comportamento Alimentar/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Hispânico ou Latino/psicologia , Bebidas Adoçadas com Açúcar , Características Culturais , Feminino , Grupos Focais , Conhecimentos, Atitudes e Prática em Saúde/etnologia , Humanos , Masculino , Ohio
8.
J Vet Cardiol ; 21: 79-92, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30797448

RESUMO

INTRODUCTION: The objective of the study was to evaluate the accuracy of two- and three-dimensional (2D, 3D) transthoracic echocardiography (TTE), 2D transesophageal echocardiography, and computed tomography angiography (CTA) compared with cardiac magnetic resonance imaging (CMR) in normal dogs and to assess repeatability of 2D and 3D TTE for the assessment of left ventricular (LV) and left atrial (LA) dimensions. ANIMALS: The study was performed on six healthy dogs. MATERIALS AND METHODS: Transthoracic echocardiography, transesophageal echocardiography, CTA, and CMR were performed on each dog. Right ventricular (RV) and LV volumes (in systole and diastole), ejection fraction (EF), and LA and right atrial (RA) volumes were assessed. Repeatability and intrarater and interrater measurements of variability were quantified by average coefficient of variation (CV) for 2D and 3D TTE. RESULTS: No clinically relevant differences in LV volume were detected between CMR and all modalities. Importantly, 3D TTE had the lowest CV (6.45%), correlated with (rs = 0.62, p = 0.01), and had the highest overlap in distribution with CMR (OVL >80%). Left ventricular EF and LA size via CTA compared best with CMR and RV and RA volumes were best estimated by 3D TTE. Assessment of LV and LA volumes via 3D TTE had moderate repeatability (15-21%) compared with LV M-mode measurements and 2D LA-to-aortic ratio (<10%), respectively. For LV size, interrater CV for 3D TTE (19.4%) was lower than 2D TTE (23.1%). CONCLUSIONS: Measurements of LV, RV, and RA volumes via 3D TTE and LA volume and LV EF assessed by CTA compared best with CMR. Three-dimensional echocardiography had lower interrater and intrarater CV compared with 2D TTE.


Assuntos
Cães/anatomia & histologia , Ecocardiografia Tridimensional/veterinária , Ecocardiografia Transesofagiana/veterinária , Ecocardiografia/veterinária , Coração/diagnóstico por imagem , Imageamento por Ressonância Magnética/veterinária , Tomografia Computadorizada por Raios X/veterinária , Animais , Feminino , Átrios do Coração/diagnóstico por imagem , Ventrículos do Coração/diagnóstico por imagem , Reprodutibilidade dos Testes
9.
J Anim Sci ; 95(6): 2421-2437, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28727037

RESUMO

The objective of this study was to evaluate multiple instrumental measures of beef juiciness and determine their relationships with sensory panel juiciness ratings. Treatments were selected to maximize variation in juiciness and included 5 USDA quality grades (Prime, upper two-thirds Choice, lower one-third Choice, Select, and Standard) as well as 2 enhanced Select treatments (112 and 107% of the initial raw weight) and were prepared to 3 degrees of doneness (DOD; rare [66°C], medium [71°C], and well done [77°C]). A total of 21 objective measures of raw samples were evaluated and included marbling level, CIE color values, pH, water activity, proximate composition, and multiple measures of water-holding capacity. Also, 17 objective measures were evaluated for cooked beef samples and included cooking loss, drip loss, and compression-based methods used to quantify expressible moisture. These measures were compared with results from a previous sensory study to evaluate the relationship between the various objective measures and sensory panel juiciness ratings. Differences ( < 0.05) were found among quality treatments for many of the measures evaluated, with the greatest differences occurring for many of the measures among samples cooked to different DOD. Of all the objective measures evaluated, protein percentage, cooking loss, and pressed juice percentage (PJP) were most closely associated ( < 0.05) with consumer juiciness ratings ( = -0.55, = -0.51, and = 0.45, respectively). Additionally, cooking loss and PJP were more closely associated ( < 0.05) with trained sensory panel initial and sustained juiciness ratings than all other measures evaluated. Regression analysis revealed that PJP explained ( < 0.05) 20, 48, and 45% of the variation in consumer, trained panel initial, and trained panel sustained juiciness scores, respectively. This was a greater percentage of the variation than slice shear force explained ( < 0.05) in trained sensory panel initial (39%) and sustained tenderness ratings (40%) and similar to the amount explained (26%) in consumer tenderness ratings. These results indicate PJP was a better predictor of sensory panel juiciness scores than all traits evaluated other than the cooking loss of steaks evaluated by sensory panelists. Pressed juice percentage explained a similar or greater amount of variation in sensory panel scores as slice shear force, indicating PJP as a potential industry standard for objective juiciness evaluation.


Assuntos
Bovinos/fisiologia , Carne Vermelha/normas , Animais , Peso Corporal , Cor , Culinária , Concentração de Íons de Hidrogênio , Fenótipo , Análise de Regressão , Estados Unidos , United States Department of Agriculture
10.
J Viral Hepat ; 24(3): 207-215, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-28127941

RESUMO

Successful hepatitis C virus (HCV) therapy depends on effective pathways of care. Over two decades, we have developed four sequential models of care latterly using a multidisciplinary managed care network to improve HCV testing, care and treatment. This was a cohort study to evaluate the effectiveness of care pathways, carried out using all HCV antibody-positive individuals tested in a geographical region between 1994 and 2014. The study involved 3122 HCV-positive patients. They were divided into four subgroups representing different care pathways defined by their date of HCV antibody diagnosis. The number who accessed treatment services within 1 year of diagnosis increased from 77 of 292 (26.3%) to 521 of 821 (72.9%). The rate of treatment starts within 1 year of diagnosis increased from 6 of 292 (2.0%) to 133 of 821 (16.2%), and the sustained viral response rate improved from 61.6% to 77.4%. All-cause mortality decreased from 232 of 688 (33.7%) in subgroup A to 55 of 1207 (4.5%) in subgroup D, and multivariate analysis showed that pathway type was an independent predictor of mortality irrespective of age, sex, SVR status or HIV co-infection with pathway in D having an odds ratio of 0.53(0.40-0.77; P<.001) compared to pathway in A. At study end, 78% (3122) of an estimated 4000 HCV positive had been diagnosed. In total, 97.5% of HCV caseload was referred to specialist services and 89% attended for assessment. The introduction of a managed care network increased access to care and reduced all-cause mortality.


Assuntos
Pesquisa sobre Serviços de Saúde , Hepatite C Crônica/diagnóstico , Hepatite C Crônica/tratamento farmacológico , Programas de Assistência Gerenciada/organização & administração , Adulto , Estudos de Coortes , Feminino , Humanos , Masculino , Mortalidade , Análise de Sobrevida , Resposta Viral Sustentada , Resultado do Tratamento , Reino Unido
11.
Clin Pharmacol Ther ; 102(1): 8-12, 2017 07.
Artigo em Inglês | MEDLINE | ID: mdl-30239991

RESUMO

From "beauty is only skin deep" to "it takes a thick skin," there are a countless number of skin-related aphorisms that serve as social commentaries on the beauty and resilience of skin. The skin as an interface to society may have diverse psychological implications, but its physiological importance to health is undeniable. As the largest organ in the body, the skin presents a formidable barrier that serves to protect our internal physiology from potentially harmful stimuli of the external environment.


Assuntos
Efeitos Psicossociais da Doença , Gerenciamento Clínico , Dermatopatias , Pele , Exposição Ambiental/efeitos adversos , Saúde Global , Humanos , Prevalência , Pele/microbiologia , Pele/fisiopatologia , Dermatopatias/economia , Dermatopatias/epidemiologia , Dermatopatias/etiologia , Dermatopatias/terapia , Fenômenos Fisiológicos da Pele
12.
Public Health ; 140: 196-205, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27523783

RESUMO

OBJECTIVE: To identify current prevalence and sociodemographic distribution of adherence to national diet and physical activity and sedentary behaviour guidelines among Australian primary school children. STUDY DESIGN: Cross-sectional survey of children (n = 4637, 9-11 years) participating at baseline in the South Australian Obesity Prevention and Lifestyle (OPAL) programme evaluation. METHODS: Self-reported diet, physical activity (PA) and screen time (ST) behaviours were assessed via questionnaire. Children were classified as meeting or not meeting each guideline (two or more serves of fruit, five or more serves of vegetables, two or less serves of discretionary food, ≥60 min of PA, and ≤2 h of ST per day). RESULTS: Although 65% of children met fruit recommendations, only 22% met vegetable recommendations (17% consumed no vegetables). Approximately one-quarter (28%) of children met discretionary food recommendations. Only 17% of children met the ST recommendations and 33% met PA recommendations. Less than 1% of children met all five recommendations. Rural children were more likely to meet both PA (OR = 1.45, 95% CI: 1.21-1.74, P < 0.001) and ST (OR = 1.37, 95% CI: 1.14-1.66, P < 0.01) recommendations than urban counterparts. Children at least socio-economic disadvantage performed better than those at greatest disadvantage for most behaviours. CONCLUSION: Improvement in Australian children's diet and physical activity and sedentary behaviours, particularly urban children and those at greatest socio-economic disadvantage, is urgently warranted.


Assuntos
Dieta/estatística & dados numéricos , Exercício Físico , Fidelidade a Diretrizes/estatística & dados numéricos , Guias como Assunto , População Rural/estatística & dados numéricos , Comportamento Sedentário , População Urbana/estatística & dados numéricos , Criança , Estudos Transversais , Feminino , Humanos , Masculino , Obesidade Infantil/epidemiologia , Obesidade Infantil/prevenção & controle , Prevalência , Fatores Socioeconômicos , Austrália do Sul/epidemiologia , Inquéritos e Questionários
13.
Public Health ; 136: 48-56, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-27178132

RESUMO

OBJECTIVES: Point of sale (POS) displays are one of the most important forms of tobacco marketing still permitted in many countries. Reliable methods for measuring exposure to such displays are needed in order to assess their potential impact, particularly on smoking attitudes and uptake among young people. In this study we use a novel method for evaluating POS exposure based on young people's use of retail outlets and recall of tobacco displays and observational data on the characteristics of displays. STUDY DESIGN: Observational audit of retail outlets (n = 96) and school-based pupil survey (n = 1482) in four Scottish communities reflecting different levels of social deprivation and urbanisation, conducted in 2013 before legislation to remove POS displays was implemented in supermarkets. METHODS: Measures were taken of: visibility and placement of tobacco displays; internal and external advertising; display unit size, branding and design; visibility of pack warnings; proximity of tobacco products to products of potential interest to children and young people; pupils' self-reported frequency of visiting retail outlets; and pupils' recall of tobacco displays. Variation in POS exposure across social and demographic groups was assessed. RESULTS: Displays were highly visible within outlets and, in over half the stores, from the public footway outside. Tobacco products were displayed in close proximity to products of interest to children (e.g. confectionery, in 70% of stores). Eighty percent of pupils recalled seeing tobacco displays, with those from deprived areas more likely to recall displays in small shops. When confectioners, tobacconists and newsagents (CTNs) and grocery/convenience stores (two of the outlet types most often visited by young people) were examined separately, average tobacco display unit sizes were significantly larger in those outlets in more deprived areas. CONCLUSIONS: POS displays remain a key vector in most countries for advertising tobacco products, and it is important to develop robust measures of exposure. The data reported in this paper provide a baseline measure for evaluating the efficacy of legislation prohibiting such displays.


Assuntos
Marketing/legislação & jurisprudência , Marketing/estatística & dados numéricos , Fumar/psicologia , Produtos do Tabaco , Adolescente , Atitude , Comércio/estatística & dados numéricos , Feminino , Humanos , Masculino , Rememoração Mental , Escócia , Inquéritos e Questionários , Produtos do Tabaco/economia
14.
Meat Sci ; 116: 91-101, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26874592

RESUMO

Fatty acids (FA) in neutral and polar lipids (NL and PL) and volatile compounds were determined in Gluteus medius (GM), Longissimus lumborum (LL), Serratus ventralis (SV), and Semimembranosus (SM) muscles from upper 2/3 USDA Choice and Select quality grades (QG). Concentrations of NL FA (mg/g) were influenced by intramuscular fat (IMF) content being greater in upper 2/3 Choice compared with Select. The SV contained greater concentrations of NL FA; meanwhile, the SM contained the lowest quantities of NL FA. Percentages (g/100g of total FA) of NL SFA and MUFA were increased in beef with greater IMF content. Concentrations and percentages of PL FA had muscle specific differences between QG. Volatile compounds were primarily affected by muscle. Increases in SFA and MUFA were related with consumer liking, regardless of lipid fraction. Overall the influence of QG on SFA and MUFA was muscle specific. Therefore, each muscle may require specific considerations when considering FA, volatile compounds, and ultimately consumer liking.


Assuntos
Tecido Adiposo/fisiologia , Ácidos Graxos/química , Carne/normas , Músculo Esquelético/química , Compostos Orgânicos Voláteis/química , Animais , Bovinos , Qualidade dos Alimentos , Humanos , Carne/classificação , Sensação , Paladar , Estados Unidos , United States Department of Agriculture
15.
Clin Nutr ESPEN ; 16: 16-23, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28531450

RESUMO

BACKGROUND & AIMS: Malnutrition is prevalent in vascular surgical patients who commonly seek tertiary care at advanced stages of disease. Adjunct nutrition support is therefore pertinent to optimise patient outcomes. To negate consequences related to excessive or suboptimal dietary energy intake, it is essential to accurately determine energy expenditure and subsequent requirements. This study aims to compare resting energy expenditure (REE) measured by indirect calorimetry, a commonly used comparator, to REE estimated by predictive equations (Schofield, Harris-Benedict equations and Miller equation) to determine the most suitable equation for vascular surgery patients. METHODS: Data were collected from four studies that measured REE in 77 vascular surgery patients. Bland-Altman analyses were conducted to explore agreement. Presence of fixed or proportional bias was assessed by linear regression analyses. RESULTS: In comparison to measured REE, on average REE was overestimated when Schofield (+857 kJ/day), Harris-Benedict (+801 kJ/day) and Miller (+71 kJ/day) equations were used. Wide limits of agreement led to an over or underestimation from 1552 to 1755 kJ. Proportional bias was absent in Schofield (R2 = 0.005, p = 0.54) and Harris-Benedict equations (R2 = 0.045, p = 0.06) but was present in the Miller equation (R2 = 0.210, p < 0.01) even after logarithmic transformation (R2 = 0.213, p < 0.01). CONCLUSIONS: Whilst the Miller equation tended to overestimate resting energy expenditure and was affected by proportional bias, the limits of agreement and mean bias were smaller compared to Schofield and Harris-Benedict equations. This suggested that it is the preferred predictive equation for vascular surgery patients. Future research to refine the Miller equation to improve its overall accuracy will better inform the provision of nutritional support for vascular surgery patients and subsequently improve outcomes. Alternatively, an equation might be developed specifically for use with vascular surgery patients.


Assuntos
Metabolismo Energético , Estado Nutricional/fisiologia , Doença Arterial Periférica/cirurgia , Procedimentos Cirúrgicos Vasculares , Adulto , Índice de Massa Corporal , Calorimetria Indireta/métodos , Ingestão de Energia , Feminino , Humanos , Masculino , Desnutrição , Matemática , Pessoa de Meia-Idade , Apoio Nutricional , Obesidade , Valor Preditivo dos Testes , Descanso
16.
Appl Radiat Isot ; 106: 95-100, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26122974

RESUMO

Neutron generators based on inertial electrostatic confinement fusion were considered for the design of a neutron irradiation facility for explanted organ Boron Neutron Capture Therapy (BNCT) that could be installed in a health care center as well as in research areas. The chosen facility configuration is "irradiation chamber", a ~20×20×40 cm(3) cavity near or in the center of the facility geometry where samples to be irradiated can be placed. Neutron flux calculations were performed to study different manners for improving scattering processes and, consequently, optimize neutron flux in the irradiation position. Flux distributions were assessed through numerical simulations of several models implemented in MCNP5 particle transport code. Simulation results provided a wide spectrum of combinations of net fluxes and energy spectrum distributions. Among them one can find a group that can provide thermal neutron fluxes per unit of production rate in a range from 4.1·10(-4) cm(-2) to 1.6·10(-3) cm(-2) with epithermal-to-thermal ratios between 0.3% and 13% and fast-to-thermal ratios between 0.01% to 8%. Neutron generators could be built to provide more than 10(10) n s(-1) and, consequently, with an arrangement of several generators appropriate enough neutron fluxes could be obtained that would be useful for several BNCT-related irradiations and, eventually, for clinical practice.

17.
Vascular ; 23(6): 602-6, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25575973

RESUMO

OBJECTIVE: Vascular surgical patients, including those with abdominal aortic aneurysm (AAA), are nutritionally vulnerable. The aim of this study was to compare resting energy expenditure (REE) of patients with AAA relative to age- and gender-matched controls and explore relationships between aneurysm size and muscle mass. METHODS: Twenty patients with AAA underwent assessment of REE using indirect calorimetry. Mid-arm circumference and triceps skinfold thickness were measured and corrected arm muscle area calculated. Twenty gender- and age-matched controls were assessed using the same procedures. RESULTS: Mean (SD) age of participants with AAA was 74.7 (7.7) years, size of AAA ranged from 45 to 70 mm. Median (IQR) REE was significantly higher than controls [5990 (5469, 7017) kJ/day versus 5086 (4536, 5886) kJ/day, p = .011; or 69 (64, 80) kJ/kg/day versus 66 (61, 69) kJ/kg/day, p = .046]. While weight-adjusted REE was independent of aneurysm size (r = .200; p = .397), as aneurysm size increased, weight-adjusted corrected arm muscle area decreased (r = -.576; p = .008). CONCLUSION: The raised REE and decline in muscle mass associated with larger AAA suggest that early detection and attention to nutritional requirements of patients with AAA may be warranted.


Assuntos
Aneurisma da Aorta Abdominal/complicações , Metabolismo Energético , Desnutrição/etiologia , Músculo Esquelético/metabolismo , Músculo Esquelético/patologia , Idoso , Idoso de 80 Anos ou mais , Aneurisma da Aorta Abdominal/metabolismo , Aneurisma da Aorta Abdominal/patologia , Aneurisma da Aorta Abdominal/fisiopatologia , Calorimetria Indireta , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Desnutrição/metabolismo , Desnutrição/patologia , Desnutrição/fisiopatologia , Músculo Esquelético/fisiopatologia , Estado Nutricional , Tamanho do Órgão , Fatores de Risco , Dobras Cutâneas
18.
AJNR Am J Neuroradiol ; 36(1): 84-90, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25169926

RESUMO

BACKGROUND AND PURPOSE: Site-specific degeneration patterns of the infratentorial brain in relation to phylogenetic origins may relate to symptoms in patients with spinocerebellar degeneration, but the patterns are still unclear. We investigated macro- and microstructural changes of the infratentorial brain based on phylogenetic origins and their correlation with symptoms in patients with spinocerebellar ataxia type 6. MATERIALS AND METHODS: MR images of 9 patients with spinocerebellar ataxia type 6 and 9 age- and sex-matched controls were obtained. We divided the infratentorial brain on the basis of phylogenetic origins and performed an atlas-based analysis. Comparisons of the 2 groups and a correlation analysis assessed with the International Cooperative Ataxia Rating Scale excluding age effects were performed. RESULTS: A significant decrease of fractional volume and an increase of mean diffusivity were seen in all subdivisions of the cerebellum and in all the cerebellar peduncles except mean diffusivity in the inferior cerebellar peduncle in patients compared with controls (P < .0001 to <.05). The bilateral anterior lobes showed the strongest atrophy. Fractional volume decreased mainly in old regions, whereas mean diffusivity increased mainly in new regions of the cerebellum. Reflecting this tendency, the International Cooperative Ataxia Rating Scale total score showed strong correlations in fractional volume in the right flocculonodular lobe and the bilateral deep structures and in mean diffusivity in the bilateral posterior lobes (r = 0.73 to ±0.87). CONCLUSIONS: We found characteristic macro- and microstructural changes, depending on phylogenetic regions of the infratentorial brain, that strongly correlated with clinical symptoms in patients with spinocerebellar ataxia type 6.


Assuntos
Tronco Encefálico/patologia , Cerebelo/patologia , Ataxias Espinocerebelares/patologia , Adulto , Idoso , Atrofia/patologia , Feminino , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Pessoa de Meia-Idade , Filogenia , Índice de Gravidade de Doença
19.
Gynecol Oncol ; 135(3): 547-51, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25449569

RESUMO

OBJECTIVES: ACOG guidelines for the evaluation of women with a pelvic mass employ a combination of physical exam, imaging, and CA125 to guide physicians in the triage of women to gynecologic oncologists. We studied the use of ROMA with clinical assessment for cancer risk assessment in women with a pelvic mass. METHODS: This was a prospective, multicenter trial evaluating women with a pelvic mass who had an initial clinical risk assessment (ICRA) performed by a generalist. ROMA scores were calculated and sensitivity, specificity, PPV and NPV were determined for ICRA and ICRA+ROMA. RESULTS: A total of 461 women were entered into the study. There were 375 benign tumors, 48 EOC, 18 LMP tumors and 20 non-ovarian malignancies. For detection of ovarian cancer alone, ICRA had a sensitivity of 85.4%, a specificity of 84.3%, and a NPV of 97.8%. Adding ROMA to ICRA produced a significant improvement of 8.4% in sensitivity, achieving a sensitivity of 93.8% with a specificity of 67.2% and a NPV of 98.8%. Examination of all malignancies (ovarian & non-ovarian) provided a sensitivity of 89.7% for ROMA+ICRA in comparison to 77.9% for ICRA alone, a significant increase in sensitivity of 11.8%. The NPV also significantly increased from 95.5% to 97.3%. Overall, ROMA detected 13 additional malignancies missed by ICRA. CONCLUSIONS: Adjunctive use of ROMA with clinical assessment improves the stratification of women with a pelvic mass into low and high risk groups for ovarian cancer. The combination is particularly effective in ruling out malignant disease.


Assuntos
Modelos Biológicos , Neoplasias Ovarianas/diagnóstico , Algoritmos , Biomarcadores Tumorais/metabolismo , Feminino , Humanos , Estadiamento de Neoplasias , Neoplasias Ovarianas/metabolismo , Neoplasias Ovarianas/patologia , Estudos Prospectivos , Medição de Risco
20.
Acad Pediatr ; 14(4): 415-22, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24976354

RESUMO

OBJECTIVE: National consensus statements recommend that providers regularly assess the transition readiness skills of adolescent and young adults (AYA). In 2010 we developed a 29-item version of Transition Readiness Assessment Questionnaire (TRAQ). We reevaluated item performance and factor structure, and reassessed the TRAQ's reliability and validity. METHODS: We surveyed youth from 3 academic clinics in Jacksonville, Florida; Chapel Hill, North Carolina; and Boston, Massachusetts. Participants were AYA with special health care needs aged 14 to 21 years. From a convenience sample of 306 patients, we conducted item reduction strategies and exploratory factor analysis (EFA). On a second convenience sample of 221 patients, we conducted confirmatory factor analysis (CFA). Internal reliability was assessed by Cronbach's alpha and criterion validity. Analyses were conducted by the Wilcoxon rank sum test and mixed linear models. RESULTS: The item reduction and EFA resulted in a 20-item scale with 5 identified subscales. The CFA conducted on a second sample provided a good fit to the data. The overall scale has high reliability overall (Cronbach's alpha = .94) and good reliability for 4 of the 5 subscales (Cronbach's alpha ranging from .90 to .77 in the pooled sample). Each of the 5 subscale scores were significantly higher for adolescents aged 18 years and older versus those younger than 18 (P < .0001) in both univariate and multivariate analyses. CONCLUSIONS: The 20-item, 5-factor structure for the TRAQ is supported by EFA and CFA on independent samples and has good internal reliability and criterion validity. Additional work is needed to expand or revise the TRAQ subscales and test their predictive validity.


Assuntos
Atividades Cotidianas , Fibrose Cística , Pessoas com Deficiência/estatística & dados numéricos , Cuidado Transicional/estatística & dados numéricos , Adolescente , Adulto , Boston , Fibrose Cística/psicologia , Fibrose Cística/terapia , Pessoas com Deficiência/psicologia , Análise Fatorial , Feminino , Necessidades e Demandas de Serviços de Saúde , Humanos , Masculino , Massachusetts , North Carolina , Reprodutibilidade dos Testes , Inquéritos e Questionários/normas , Adulto Jovem
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