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1.
Anaesth Crit Care Pain Med ; : 101394, 2024 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-38795829

RESUMEN

PURPOSE: We aimed to describe the availability of 31 distinct services and facilities to diagnose, resuscitate, and treat critically unwell obstetric patients. METHODS: Using a network of anesthesiologists, intensive care clinicians, obstetricians, critical care nurses, and midwives (MaCriCare) from September 2021 to January 2022, we conducted a descriptive international multicenter cross-sectional survey in centers with obstetric units (OUs) in the WHO Europe Region. RESULTS: The MaCriCare network covers 26 countries and received 1133 responses, corresponding to 2.5 million annual deliveries. The survey identified significant disparities in the availability of the measured 31 services among the OUs, with some services not immediately available and some not available at all. Point-of-care hemoglobin measurements were lacking in 13.8% of OUs. 15.2% of OUs lacked pointof-care lactate measurement, and 11% lacked transfusion services. 23.8% of OUs lacked the ability to administer hypotensive agent infusions in the labor ward. Samebuilding access to cell saver and thromboelastometry was unavailable to 45.5% and 64.4% of OUs, respectively. Access to invasive ventilation was unavailable to 3.4% of OUs, 11.7% were unable to offer same-building access to non-invasive ventilation, and extracorporeal membranous oxygenation was unavailable to 38.3% of the OUs. CONCLUSION: Critically ill obstetric patients have access to markedly different resources in the WHO Europe Region depending on the OU where they are managed. Consensus on which facilities and services should be universally available is urgently needed.

2.
J Hunger Environ Nutr ; 19(3): 355-375, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38800668

RESUMEN

We examined whether Central Texans shop at their nearest supermarket, how far they travel for groceries, and explored differences by race/ethnicity, urbanicity, motivations for store selection and other demographic characteristics. Using cross-sectional data and GIS, continuous network distances from participants' homes to nearest and usual supermarkets were calculated and multivariate linear regression assessed differences. <19% shopped at their nearest supermarket. Regression models found that urbanicity played a large role in distance traveled to preferred supermarket, but other factors varied by race/ethnicity. Our findings demonstrate racial/ethnic and urbanicity disparities in food access and multiple domains of food access need greater consideration.

3.
Anaesth Crit Care Pain Med ; 43(3): 101355, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38360406

RESUMEN

PURPOSE: To evaluate obstetric units (OUs) and intensive care units (ICUs) preparedness for severe maternal morbidity (SMM). METHODS: From September 2021 to January 2022, an international multicentre cross-sectional study surveyed OUs in 26 WHO Europe Region countries. We assessed modified early obstetric warning score usage (MEOWS), approaches to four SMM clinical scenarios, invasive monitoring availability in OUs, and access to high-dependency units (HDUs) and onsite ICUs. Within ICUs, we examined the availability of trained staff, response to obstetric emergencies, leadership, and data collection. RESULTS: 1133 responses were evaluated. MEOWS use was 34.5%. Non-obstetric early warning scores were being used. 21.4% (242) of OUs provided invasive monitoring in the OU. A quarter lacked access to onsite HDU beds. In cases of SMM, up to 13.8% of all OUs indicated the need for transfer to another hospital. The transfer rate was highest (74.0%) in small units. 81.9% of centers provided onsite ICU facilities to obstetric patients. Over 90% of the onsite ICUs provided daily specialist obstetric reviews but lacked immediate access to key resources: 3.4% - uterotonic drugs, 7.5% - neonatal resuscitation equipment, 9.2% - neonatal resuscitation team, 11.4% - perimortem cesarean section equipment. 41.2% reported obstetric data to a national database. CONCLUSION: Gaps in provision exist for obstetric patients with SMM in Europe, potentially compromising patient safety and experience. MEOWS use in OUs was low, while access to invasive monitoring and onsite HDU and ICU facilities was variable. ICUs frequently lacked resources and did not universally collect obstetric data for quality control.


Asunto(s)
Unidades de Cuidados Intensivos , Humanos , Europa (Continente) , Estudios Transversales , Femenino , Embarazo , Unidades de Cuidados Intensivos/organización & administración , Complicaciones del Embarazo/terapia , Complicaciones del Embarazo/epidemiología
4.
BMC Genomics ; 25(1): 6, 2024 Jan 02.
Artículo en Inglés | MEDLINE | ID: mdl-38166563

RESUMEN

BACKGROUND: Microsporidia are a large taxon of intracellular pathogens characterized by extraordinarily streamlined genomes with unusually high sequence divergence and many species-specific adaptations. These unique factors pose challenges for traditional genome annotation methods based on sequence similarity. As a result, many of the microsporidian genomes sequenced to date contain numerous genes of unknown function. Recent innovations in rapid and accurate structure prediction and comparison, together with the growing amount of data in structural databases, provide new opportunities to assist in the functional annotation of newly sequenced genomes. RESULTS: In this study, we established a workflow that combines sequence and structure-based functional gene annotation approaches employing a ChimeraX plugin named ANNOTEX (Annotation Extension for ChimeraX), allowing for visual inspection and manual curation. We employed this workflow on a high-quality telomere-to-telomere sequenced tetraploid genome of Vairimorpha necatrix. First, the 3080 predicted protein-coding DNA sequences, of which 89% were confirmed with RNA sequencing data, were used as input. Next, ColabFold was used to create protein structure predictions, followed by a Foldseek search for structural matching to the PDB and AlphaFold databases. The subsequent manual curation, using sequence and structure-based hits, increased the accuracy and quality of the functional genome annotation compared to results using only traditional annotation tools. Our workflow resulted in a comprehensive description of the V. necatrix genome, along with a structural summary of the most prevalent protein groups, such as the ricin B lectin family. In addition, and to test our tool, we identified the functions of several previously uncharacterized Encephalitozoon cuniculi genes. CONCLUSION: We provide a new functional annotation tool for divergent organisms and employ it on a newly sequenced, high-quality microsporidian genome to shed light on this uncharacterized intracellular pathogen of Lepidoptera. The addition of a structure-based annotation approach can serve as a valuable template for studying other microsporidian or similarly divergent species.


Asunto(s)
Genoma , Genómica , Anotación de Secuencia Molecular
5.
J Public Health Dent ; 83(4): 389-396, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-38073040

RESUMEN

OBJECTIVES: Although food deserts are known to impact health and healthcare utilization, no research has investigated the relationship between food deserts and dental care utilization. This study aimed to fill this gap by assessing the relationship between living in a food desert and self-reported dental care utilization in the past year. METHODS: Data are from the National Longitudinal Study of Adolescent to Adult Health (N = 10,495). The association between food deserts and dental care utilization was assessed using covariate-adjusted multiple logistic regression. RESULTS: Living in a food desert was associated with higher odds of not utilizing dental care in the past year. This association was concentrated among high-poverty areas (≥20% poverty rate). CONCLUSIONS: The current study is the first to assess the relationship between living in a food desert and dental care utilization. The findings demonstrate that individuals living in low-income urban food deserts may be at increased risk for not utilizing dental care.


Asunto(s)
Desiertos Alimentarios , Abastecimiento de Alimentos , Adulto , Estados Unidos , Humanos , Adolescente , Estudios Longitudinales , Pobreza , Atención Odontológica
6.
J Anesth ; 37(6): 905-913, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37709952

RESUMEN

PURPOSE: Doses of spinal bupivacaine adjusted to patient height or height/weight have been shown to provide hemodynamic stability during cesarean section. However, their effects in short stature parturients are unknown. METHODS: In this double-blind, randomized clinical trial, we randomly assigned short parturients (height < 150 cm) undergoing elective cesarean section, to receive doses of intrathecal hyperbaric bupivacaine either height or height/weight-adjusted, in a 1:1 ratio. The primary outcome was post-spinal hypotension (defined as systolic blood pressure [SBP] < 90% of baseline between spinal administration and delivery of the baby). Secondary outcomes included severe post-spinal hypotension (SBP < 80% of baseline), post-delivery hypotension (SBP < 90% and < 80% of baseline), intraoperative bradycardia, nausea and vomiting, shivering, rescue analgesic needed, and spinal block characteristics. RESULTS: A total of 112 patients underwent randomization. Post-spinal hypotension (SBP < 90% of baseline) occurred in 52% of the patients in the height/weight group and in 55% in the height group (difference - 3.5%: 95% confidence interval [CI] - 22 to 14.8, P = 0.705). There was no significant difference between the two groups in the occurrences of post-spinal severe hypotension (SBP < 80% of baseline), post-delivery hypotension, and spinal block characteristics. Six patients (11%) in the height/weight group needed intraoperative rescue analgesic compared to none in the height group (P = 0.027). CONCLUSION: We found that height-based dosing in short parturients provides the optimal trade-off between intraoperative hemodynamic instability and provision of pain-free anesthesia. TRIAL REGISTRATION: clinicaltrial.gov-NCT04082676. https://clinicaltrials.gov/ct2/show/NCT04082676 .


Asunto(s)
Anestesia Obstétrica , Anestesia Raquidea , Hipotensión , Humanos , Embarazo , Femenino , Bupivacaína , Anestésicos Locales/efectos adversos , Cesárea , Anestesia Raquidea/efectos adversos , Hipotensión/tratamiento farmacológico , Hipotensión/etiología , Hemodinámica , Analgésicos , Método Doble Ciego , Anestesia Obstétrica/efectos adversos
7.
Best Pract Res Clin Anaesthesiol ; 37(2): 171-187, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37321765

RESUMEN

Postdural puncture headache (PDPH) may develop after an unintended (accidental) dural puncture, after deliberate dural puncture for spinal anaesthesia or during diagnostic dural punctures performed by other medical specialties. PDPH may sometimes be predictable (patient characteristics, inexperienced operator or co-morbidities), is almost never immediately evident during the procedure, and sometimes presents late, after discharge. Specifically, PDPH severely restricts activities of daily living, patients may be bedridden for several days and mothers may have difficulty in breastfeeding. Although an epidural blood patch (EBP) remains the management technique with greatest immediate success, most headaches resolve over time but may cause mild-severe disability. Failure of EBP after the first attempt is not uncommon, and major complications may occur but are rare. In the current review of the literature, we discuss the pathophysiology, diagnosis, prevention and management of PDPH following accidental or intended dural puncture, and present possible therapeutic options for the future.


Asunto(s)
Anestesia Obstétrica , Cefalea Pospunción de la Duramadre , Humanos , Cefalea Pospunción de la Duramadre/diagnóstico , Cefalea Pospunción de la Duramadre/epidemiología , Cefalea Pospunción de la Duramadre/etiología , Actividades Cotidianas , Parche de Sangre Epidural/métodos , Anestesia Obstétrica/efectos adversos
8.
J Gen Intern Med ; 38(10): 2340-2346, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37199904

RESUMEN

BACKGROUND: Medical debt affects one in five adults in the USA and may disproportionately burden postpartum women due to pregnancy-related medical costs. OBJECTIVE: To evaluate the association between childbirth and medical debt, and the correlates of medical debt among postpartum women, in the USA. DESIGN: Cross-sectional. PARTICIPANTS: We analyzed female "sample adults" 18-49 years old in the 2019-2020 National Health Interview Survey, a nationally representative household survey. MAIN MEASURES: Our primary exposure was whether the subject gave birth in the past year. We had two family-level debt outcomes: problems paying medical bills and inability to pay medical bills. We examined the association between live birth and medical debt outcomes, unadjusted and adjusted for potential confounders in multivariable logistic regressions. Among postpartum women, we also examined the association between medical debt with maternal asthma, hypertension, and gestational diabetes and several sociodemographic factors. KEY RESULTS: Our sample included n = 12,163 women, n = 645 with a live birth in the past year. Postpartum women were younger, more likely to have Medicaid, and lived in larger families than those not postpartum. 19.8% of postpartum women faced difficulty with medical bills versus 15.1% who were not; in multivariable regression, postpartum women had 48% higher adjusted odds of medical debt problems (95% CI 1.13, 1.92). Results were similar when examining inability to pay medical bills, and similar differences were seen for privately insured women. Among postpartum women, those with lower incomes and with asthma or gestational diabetes, but not hypertension, had significantly higher adjusted odds of medical debt problems. CONCLUSIONS: Postpartum women experience higher levels of medical debt than other women; poorer women and those with common chronic diseases may have an even higher burden. Policies to expand and improve health coverage for this population are needed to improve maternal health and the welfare of young families.


Asunto(s)
Asma , Diabetes Gestacional , Hipertensión , Adulto , Embarazo , Estados Unidos/epidemiología , Humanos , Femenino , Adolescente , Adulto Joven , Persona de Mediana Edad , Seguro de Salud , Estudios Transversales , Encuestas y Cuestionarios
9.
Nutrients ; 15(1)2023 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-36615871

RESUMEN

The U.S. agri-food system is a driver of climate change and other impacts. In order to achieve environmental targets that limit global mean temperature rise ≤2 °C, a shift in American dietary patterns is critical. The purpose of this study was twofold: (1) to determine the environmental impact (i.e., land use, water use, and GHG emissions) related to consumption of five U.S. dietary patterns (i.e., Current U.S., the Healthy U.S., Mediterranean, Healthy Vegetarian, and Vegan), and (2) to determine the specific impact of each food group in each dietary pattern on the three environmental indicators. This study utilized existing datasets to synthesize information related to the study's environmental indicators and food production and connected these data to the current U.S. diet and the USDA-defined diets. Results indicate that the three omnivore diets contributed the greatest to GHG emissions, land use and water use. The Vegan diet scored the lowest across all indicators, although the water required for plant-based protein nearly offset other water gains. For the omnivore diets, red meat and dairy milk contributed the most to each environmental indicator. By considering sustainability as well as health outcomes in their recommendations in the Dietary Guidelines, the USDA can have a critical role in shifting diets necessary to alter climate change trends.


Asunto(s)
Gases de Efecto Invernadero , Agua , Dieta , Ambiente , Seguridad Alimentaria
10.
JAMA Netw Open ; 6(1): e2250375, 2023 01 03.
Artículo en Inglés | MEDLINE | ID: mdl-36626172

RESUMEN

Importance: Although school-based gardening programs for children have consistently been shown to improve dietary behaviors, no cluster randomized clinical trial (RCT) has evaluated the effects of a school-based gardening intervention on metabolic outcomes. Objective: To evaluate the effects of a school-based gardening, nutrition, and cooking intervention (Texas Sprouts) on changes in metabolic outcomes in elementary schoolchildren. Design, Setting, and Participants: This study was a secondary analysis of a cluster RCT, conducted over 3 years from 2016 to 2019, at low-income elementary schools with majority Hispanic students in the greater Austin, Texas, area. Data were analyzed from January to August 2022. Interventions: Texas Sprouts was 1 school year long (9 months) and consisted of (1) Garden Leadership Committee formation; (2) a 0.25-acre outdoor teaching garden; (3) 18 student gardening, nutrition, and cooking lessons taught by trained educators throughout the school year; and (4) 9 monthly parent lessons. The delayed intervention was implemented the following academic year and received an identical intervention. Main Outcomes and Measures: The following measures were obtained at baseline and postintervention (9 months): demographics via survey; measured height, weight, and body mass index parameters; and glucose, insulin, homeostatic model assessment of insulin resistance, and a lipid panel via an optional fasting blood draw. Results: Sixteen elementary schools were randomly assigned to either Texas Sprouts intervention (8 schools) or to delayed intervention (control, 8 schools). A total of 3302 children (aged 7-12 years) were enrolled in Texas Sprouts, and fasting blood samples were obtained from 1104 children (or 33% of those enrolled) at baseline. The final analytic sample included 695 children (307 boys [44.17%]; mean [SE] age, 9.28 [0.04] years; 480 Hispanic children [69.02%]; 452 [65.03%] eligible for free or reduced lunch) with complete demographic data and baseline and postintervention (9-month) fasting blood draws. Compared with control schools, children from Texas Sprouts schools had a 0.02% reduction in mean hemoglobin A1c (95% CI, 0.03%-0.14%; P = .005) and a 6.40 mg/dL reduction in mean low-density lipoprotein cholesterol (95% CI, 3.82-8.97 mg/dL; P = .048). There were no intervention effects on glucose, insulin, homeostatic model assessment of insulin resistance, or other lipid parameters. Conclusions and Relevance: In this cluster RCT, Texas Sprouts improved glucose control and reduced low-density lipoprotein cholesterol in high-risk youth. These findings suggest that elementary schools should incorporate garden-based interventions as a way to improve metabolic parameters in children. Trial Registration: ClinicalTrials.gov Identifier: NCT02668744.


Asunto(s)
Resistencia a la Insulina , Insulinas , Masculino , Niño , Humanos , Adolescente , Jardinería/educación , Promoción de la Salud , Culinaria , Lipoproteínas LDL , Colesterol , Lípidos
11.
J Public Health (Oxf) ; 45(1): e22-e29, 2023 03 14.
Artículo en Inglés | MEDLINE | ID: mdl-35021215

RESUMEN

BACKGROUND: Consuming a diet rich in plant-based foods (PBFs) may be protective for risk of metabolic syndrome (MetS) and chronic disease. However, the impact of consuming healthy versus all types of PBF on MetS is unknown. METHODS: The relationship between consumption of PBF (both healthy and all) was examined using data from the 2015 to 2016 National Health and Nutrition Examination Survey (NHANES). The amount of PBFs consumed was calculated as average daily servings, whereas dichotomous MetS variables were based on the National Cholesterol Education Adult Program Treatment Panel III (2005). After weighting and multiple imputation, adjusted associations were examined using logistic regression and marginal probabilities. RESULTS: Consumption of healthy PBF was significantly associated with reduced risk for elevated waist circumference (P = 0.017; odds ratio, OR 0.96, 95% confidence interval, CI 0.94-0.98) and MetS (P = 0.006; OR 0.96, 95% CI 0.93-0.99). Interactions revealed significant protective effects for females who were $\ge$ 60 years. CONCLUSIONS: In the adjusted model, a 1-unit increase in daily servings of healthy PBF was associated with a 4% lower risk for prevalence of elevated waist circumference and a 4% decrease in risk for prevalence of MetS. Increasing consumption of PBF may offer a viable strategy for reducing risk of MetS.


Asunto(s)
Síndrome Metabólico , Adulto , Femenino , Humanos , Síndrome Metabólico/epidemiología , Síndrome Metabólico/etiología , Encuestas Nutricionales , Colesterol , Modelos Logísticos , Oportunidad Relativa , Factores de Riesgo , Prevalencia , Circunferencia de la Cintura
12.
J Acad Nutr Diet ; 123(4): 637-642, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-35998864

RESUMEN

BACKGROUND: School gardening programs have consistently been found to improve dietary behaviors in children. Although several quasi-experimental studies have also reported that school gardens can enhance academic performance, to date, no randomized controlled trial has been conducted to substantiate this. OBJECTIVE: The objective of the study was to examine the effects of Texas Sprouts (TX Sprouts), a gardening, nutrition, and cooking program vs control on academic performance in primarily low-income, Hispanic children. DESIGN: This is a secondary analysis of the grade-level academic scores from schools that participated in the TX Sprouts program, a school-based cluster randomized controlled trial, consisting of 16 elementary schools that were randomly assigned to either the TX Sprouts intervention (n = 8 schools) or control (delayed intervention; n = 8 schools). PARTICIPANTS/SETTING: Analysis included 16 schools with students in fourth and fifth grade in Austin, TX from 2016 to 2019 that had a majority Hispanic population and a majority of children participating in the free and reduced lunch program. INTERVENTION: The intervention consisted of 18 one-hour gardening, nutrition, and cooking lessons taught in an outdoor teaching garden by trained educators throughout the academic year. MAIN OUTCOME MEASURES: Texas Education Agency grade-level data for the State of Texas Assessments of Academic Readiness were obtained via the Texas Education Agency website for the corresponding year of the intervention or control condition. STATISTICAL ANALYSIS PERFORMED: Repeated measures general linear models with pre- and post-intervention State of Texas Assessments of Academic Readiness scores as the dependent variable were run, adjusting for the percent of free and reduced lunch and school district as covariates. RESULTS: Schools that received the TX Sprouts intervention had a 6.5-percentage-point increase in fourth-grade reading State of Texas Assessments of Academic Readiness scores compared with control schools (P = .047). There were no significant differences in reading scores for fifth grade students or math scores for either fourth- or fifth-grade students between groups. CONCLUSIONS: Study findings provide evidence that school gardening programs may have some modest effects on academic achievement.


Asunto(s)
Jardinería , Jardines , Niño , Humanos , Promoción de la Salud , Culinaria , Instituciones Académicas
13.
Nutrients ; 14(23)2022 Dec 03.
Artículo en Inglés | MEDLINE | ID: mdl-36501179

RESUMEN

The aims of this study were to determine if fresh fruit and vegetable consumption and purchasing behaviors were associated with geographic food access and/or food insecurity status, and to explore the role of sociodemographic characteristics among participants of a lower-income, racially/ethnically diverse cohort. This study used a cross-sectional design and baseline survey data from the FRESH-Austin study (N = 393). Associations between fresh produce consumption/purchasing and food insecurity status and geographic access to food were assessed utilizing univariate, bivariate, and multivariate linear regression methods and potential interactions were examined. The sample 40% reported being food insecure and the majority identified as Hispanic. Geographic food access was directly associated with fresh produce consumption (ß = 0.46, p = 0.02); however, the directionality of the relationship between food insecurity and fresh produce consumption varied due to a significant interaction with race/ethnicity. Only utilizing food assistance was associated with purchasing fewer fresh produce (ß= -1.83, p = 0.03). Findings suggest that communities experience food insecurity and limited healthy food access in different ways, and in some situations, are associated with fresh produce consumption and purchasing behaviors. Future research adopting an intersectionality-sensitive approach to better understand how to best support communities at risk is needed.


Asunto(s)
Frutas , Verduras , Humanos , Estudios Transversales , Abastecimiento de Alimentos , Inseguridad Alimentaria
14.
J Health Care Poor Underserved ; 33(4S): 83-106, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36533460

RESUMEN

INTRODUCTION: This study describes the cross-sector collaboration, dynamic implementation/evaluation, and implications of Fresh for Less (FFL); an equity-focused, multi-strategy healthy food access promotion program that has been implemented since 2017 in underserved communities in Austin, Texas through farmstands, mobile markets, and Healthy Corner Stores. METHODS: Annual evaluation has consisted of repeat cross-sectional quantitative surveys, qualitative customer/staff interviews, audits and cost-effective analyses. RESULTS: Farmstand/mobile market customers reported increased fresh produce consumption and high satisfaction. During COVID-19, mobile markets quickly pivoted to delivery, filling a huge need for safe and affordable grocery delivery. Healthy Corner Stores were not as successful, and this strategy was adapted and reintroduced in 2021. Audits show increased produce provision over time and that mobile markets offered increasingly competitive pricing. DISCUSSION: Fresh for Less demonstrates how cross-sector collaborators can work together to ensure that a program designed to improve equitable food access can be resilient, sustainable, and successful.


Asunto(s)
COVID-19 , Verduras , Humanos , Abastecimiento de Alimentos , Frutas , Promoción de la Salud , Estudios Transversales , COVID-19/epidemiología , COVID-19/prevención & control , Comercio
15.
Materials (Basel) ; 15(22)2022 Nov 14.
Artículo en Inglés | MEDLINE | ID: mdl-36431525

RESUMEN

In the present experimental study, the transverse oscillating laser beam technique was applied for the post-melting of metal matrix composite coatings, thermally sprayed with nickel-based self-fluxing NiCrCoFeCBSi alloy and 40 wt.% WC, to improve their hardness and wear resistance. The study was conducted using the single module optical fiber laser at 300 W power, >9554 W/cm2 power density, 250−1000 mm/min laser speed, 1 mm and 2 mm transverse oscillation amplitude. Scanning electron microscopy, energy dispersive spectroscopy, Knop hardness measurements, and "Ball-on-disc" dry sliding tests were conducted to study the effect of the processing parameters on the molten pool geometry and microstructure, hardness, and tribology of the processed layers. Oscillating laser processing with an amplitude of 1 mm, 250−750 mm/min laser operating speed, and sample preheating to 400 °C gave a satisfactory result: wide and shallow molten pools of ~200−350 µm in depth, hardness between ~1100 and 1200 HV0.2 and minimum cracks obtained. The coatings obtained with laser beam oscillation and preheating, and ~1150 HV0.2 hardness showed an improvement in the wear resistance and friction coefficient (~0.33) of ~2.9 times and ~20%, respectively, compared with the respective values of the coatings remelted in furnace.

16.
Br J Anaesth ; 129(5): 758-766, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-36064491

RESUMEN

BACKGROUND: Epidural blood patch is commonly used for management of post-dural puncture headache after accidental dural puncture. The primary aim was to determine factors associated with failed epidural blood patch. METHODS: In this prospective, multicentre, international cohort study, parturients ≥18 yr receiving an epidural blood patch for treatment of post-dural puncture headache were included. Failed epidural blood patch was defined as headache intensity numeric rating scale (NRS) score ≥7 in the upright position at 4, 24, or 48 h, or the need for a second epidural blood patch, and complete success by NRS=0 at 0-48 h after epidural blood patch. All others were considered partial success. Multinominal logistic regression was used for statistical analyses with P<0.01 considered statistically significant. RESULTS: In all, 643 women received an epidural blood patch. Complete data to classify failure were available in 591 (91.9%) women. Failed epidural blood patch occurred in 167 (28.3%) patients; 195 (33.0%) were completely successful and 229 (38.7%) partially successful. A total of 126 women (19.8%) received a second epidural blood patch. A statistically significant association with failure was observed in patients with a history of migraine, when the accidental dural puncture occurred between lumbar levels L1/L3 compared with L3/L5 and when epidural blood patch was performed <48 h compared with ≥48 h after accidental dural puncture. In patients having radiological investigations, three intracranial bleeds were diagnosed. CONCLUSIONS: Failed epidural blood patch occurred in 28.3% of women. Independent modifiable factors associated with failure were higher lumbar level of accidental dural puncture and short interval between accidental dural puncture and epidural blood patch. A history of migraine was associated with a higher risk of second epidural blood patch. CLINICAL TRIAL REGISTRATION: NCT02362828.


Asunto(s)
Trastornos Migrañosos , Obstetricia , Cefalea Pospunción de la Duramadre , Embarazo , Humanos , Femenino , Masculino , Parche de Sangre Epidural , Cefalea Pospunción de la Duramadre/epidemiología , Cefalea Pospunción de la Duramadre/etiología , Cefalea Pospunción de la Duramadre/terapia , Estudios de Cohortes , Estudios Prospectivos , Estudios Retrospectivos , Punciones , Trastornos Migrañosos/terapia
17.
Public Health Nutr ; : 1-25, 2022 Aug 18.
Artículo en Inglés | MEDLINE | ID: mdl-35979814

RESUMEN

OBJECTIVE: To examine demographic and dietary correlates of consumption of a variety of fruits and vegetables (FV) among Texas adolescents. Different types of FV are needed for adequate dietary intake of vitamins and phytochemicals for proper development and functioning throughout the lifespan. DESIGN: Cross-sectional analysis from the Texas Surveillance of Physical Activity and Nutrition (Texas SPAN) data comparing consumption of a variety of fruit and vegetables by gender, race/ethnicity, and region (Texas-Mexico border/non-border). SETTING: Middle, high schools in Texas. PARTICIPANTS: 8th, 11th grade Texas adolescents (n=9,056 representing N=659,288) mean age 14.8 years. RESULTS: Within this sample, mean fruit and vegetable variety scores (0-7) ranged from 2.47-2.65. Boys consumed a significantly greater variety of fruit than girls (m=1.12 compared to 1.04). Adolescents in non-border regions consumed a greater variety of vegetables and FV compared to those in border regions. FV variety was associated with healthier eating in the full sample, particularly in the highest Socioeconomic Status (SES) tertile. Within the highest SES tertile, a one-unit increase in variety of fruit, vegetable, and FV was associated with significant increases (p<0.001) in a healthy eating measure, the SPAN Healthy Eating Index: Fruit variety (ß=1.33, SE=.29), Vegetable variety (ß=0.90, SE=0.28), and FV Variety (ß=.81, SE=0.19). CONCLUSIONS: Consumption of a greater variety of FV appears to be associated with a healthier overall diet. Associations of FV variety with healthy eating were most significant in the highest SES tertile. These findings support the need to further examine consuming a variety of FV within healthy eating behavior.

18.
Appetite ; 176: 106130, 2022 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-35700839

RESUMEN

INTRODUCTION: Fruit and vegetable consumption (FVC) continues to be low, particularly among people living in under-resourced communities. Identifying barriers and facilitators of FVC and whether those barriers and facilitators differ for racially and ethnically minoritized people is imperative for developing effective and equitable public health policies and interventions. METHODS: A baseline cohort of 390 participants from Central Texas communities historically lacking healthy food retailers completed a survey including FVC, 7 psychosocial barriers and facilitators of FVC, distance to a grocery retailer, participation in government assistance programs, and race/ethnicity. RESULTS: Not having time to prepare fruits and vegetables was the only significant psychosocial barrier identified (B = -.11, t(390) = 2.04, P = .04), but was not significant after accounting for sociodemographic variables. Significant facilitators of daily FVC were liking F&V (B=.31, t(390) = 6.40, P<.001), participating in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) (B=.14, t(390) = 2.81, P = .005), and Hispanic/Latino(a) ethnicity (B = -.21, t(390) = 4.30, P<.001). The final model accounted for 17% of the variance in daily FVC (R2=.17, F(4, 375) = 7.69, P < .001). Black, white and Other race participants were more likely to report having difficulty using F&V before spoiling than Hispanic/Latino(a) participants (P = .003). White and Other race participants were more likely to report that F&V were hard to prepare (P = .006) and that they didn't have time to prepare F&V (P = .005). DISCUSSION: When designing public health policy and interventions to increase FVC, researchers could prioritize identifying ways to alleviate time constraints, increase F&V liking, and help eligible participants to enroll in WIC. Strategies that reduce the risk of F&V spoiling and make F&V easier to prepare may also benefit some groups.


Asunto(s)
Asistencia Alimentaria , Verduras , Niño , Dieta/psicología , Femenino , Frutas , Humanos , Lactante , Texas
19.
Artículo en Inglés | MEDLINE | ID: mdl-35564504

RESUMEN

The purpose of this study was to explore the association between geographic food access and food insecurity and the potential role of race/ethnicity, income, and urbanicity among a low-income, diverse sample in Central Texas. Utilizing a cross-sectional study design, secondary data analysis of an existing cohort was used to examine the association between food insecurity; geographic food access; and sociodemographic factors of race/ethnicity, income, urbanicity, and additional covariates using binomial logistic regression models. The existing cohort was recruited from lower-income communities in Travis County, Texas. The sample (N = 393) was predominantly Hispanic, lived in urban areas, and nearly 40% were food insecure. Geographic food access was not found to be significantly associated with food insecurity. However, rural residents had greater odds of being food insecure than urban residents. Also, participants who earned USD 45,000-64,999 and over USD 65,000 had lower odds of being food insecure than participants who earned under USD 25,000. These findings add to the inconsistent literature about the association between geographic food access and food insecurity and contribute to urbanicity and income disparities in food-insecurity literature. Future work should consider urbanicity, income, and utilize community-specific data to gain greater understanding of the association between geographic food access and food insecurity.


Asunto(s)
Inseguridad Alimentaria , Abastecimiento de Alimentos , Estudios Transversales , Humanos , Pobreza , Texas
20.
Nutrients ; 14(3)2022 Feb 03.
Artículo en Inglés | MEDLINE | ID: mdl-35277005

RESUMEN

Modifying the food environment of cities is a promising strategy for improving dietary behaviors, but using traditional empirical methods to test the effectiveness of these strategies remains challenging. We developed an agent-based model to simulate the food environment of Austin, Texas, USA, and to test the impact of different food access policies on vegetable consumption among low-income, predominantly Latino residents. The model was developed and calibrated using empirical data from the FRESH-Austin Study, a natural experiment. We simulated five policy scenarios: (1) business as usual; (2)−(4) expanding geographic and/or economic healthy food access via the Fresh for Less program (i.e., through farm stands, mobile markets, and healthy corner stores); and (5) expanding economic access to vegetables in supermarkets and small grocers. The model predicted that increasing geographic and/or economic access to healthy corner stores will not meaningfully improve vegetable intake, whilst implementing high discounts (>85%) on the cost of vegetables, or jointly increasing geographic and economic access to mobile markets or farm stands, will increase vegetable intake among low-income groups. Implementing discounts at supermarkets and small grocers is also predicted to be an effective policy for increasing vegetable consumption. This work highlights the utility of agent-based modeling for informing food access policies.


Asunto(s)
Abastecimiento de Alimentos , Verduras , Frutas , Hispánicos o Latinos , Humanos , Política Nutricional
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