Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 43
Filtrar
1.
BMC Palliat Care ; 23(1): 176, 2024 Jul 18.
Artículo en Inglés | MEDLINE | ID: mdl-39026241

RESUMEN

BACKGROUND: Ethnic differences influence end-of-life health behaviours and use of palliative care services. Use of formal Advance care planning is not common in minority ethnic heritage communities. Older adults expect and trust their children to be their decision makers at the end of life. The study aim was to construct a theory of the dynamics that underpin end-of-life conversations within families of African and Caribbean heritage. This is a voice not well represented in the current debate on improving end-of-life outcomes. METHODS: Using Charmaz's constructivist grounded theory approach, a purposive sample of elders, adult-children, and grandchildren of African and Caribbean Heritage were recruited. In-person and online focus groups were conducted and analysed using an inductive, reflexive comparative analysis process. Initial and axial coding facilitated the creation of categories, these categories were abstracted to constructs and used in theory construction. RESULTS: Elders (n = 4), adult-children (n = 14), and adult grandchildren (n = 3) took part in 5 focus groups. A grounded theory of living and dying between cultural traditions in African and Caribbean heritage families was created. The constructs are (a) Preparing for death but not for dying (b) Complexity in traditions crosses oceans (c) Living and dying between cultures and traditions (d) There is culture, gender and there is personality (e) Watching the death of another prompts conversations. (f) An experience of Hysteresis. DISCUSSION: African and Caribbean cultures celebrate preparation for after-death processes resulting in early exposure to and opportunities for discussion of these processes. Migration results in reforming of people's habitus/ world views shaped by a mixing of cultures. Being in different geographical places impacts generational learning-by-watching of the dying process and related decision making. CONCLUSIONS: Recognising the impact of migration on the roles of different family members and the exposure of those family members to previous dying experiences is important. This can provide a more empathetic and insightful approach to partnership working between health care professionals and patients and families of minority ethic heritage facing serious illness. A public health approach focusing on enabling adult-children to have better end of life conversations with their parents can inform the development of culturally competent palliative care.


Asunto(s)
Actitud Frente a la Muerte , Cultura , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Actitud Frente a la Muerte/etnología , Población Negra/psicología , Población Negra/etnología , Familia/psicología , Familia/etnología , Grupos Focales/métodos , Teoría Fundamentada , Investigación Cualitativa , Cuidado Terminal/psicología , Pueblos Caribeños/psicología
2.
BMJ Open ; 14(6): e078085, 2024 Jun 04.
Artículo en Inglés | MEDLINE | ID: mdl-38834331

RESUMEN

OBJECTIVES: This study aims to investigate the incidence, associated factors and interventions to address teen pregnancy involvement (TPI) among African, Caribbean and Black (ACB) adolescents in North America. DESIGN: We conducted a scoping review of the literature, guided by the social-ecological model. DATA SOURCES: Studies were retrieved from databases such as Ovid Medline, Ovid Embase, CINAHL, CAB Direct and Google Scholar and imported into COVIDENCE for screening. ELIGIBILITY CRITERIA: The Joanna Briggs Institute scoping reviews protocol guided the establishment of eligibility criteria. Included studies focused on rates, associated factors and interventions related to TPI among ACB boys and girls aged 10-19 in North America. The publication time frame was restricted to 2010-2023, encompassing both peer-reviewed and non-peer-reviewed studies with diverse settings. DATA EXTRACTION AND SYNTHESIS: Data were extracted from 32 articles using a form developed by the principal author, focusing on variables aligned with the research question. RESULTS: The scoping review revealed a dearth of knowledge in Canadian and other North American literature on TPI in ACB adolescents. Despite an overall decline in teen pregnancy rates, disparities persist, with interventions such as postpartum prescription of long-acting birth control and teen mentorship programmes proving effective. CONCLUSION: The findings highlight the need for increased awareness, research and recognition of male involvement in adolescent pregnancies. Addressing gaps in housing, employment, healthcare, sexual health education and health systems policies for marginalised populations is crucial to mitigating TPI among ACB adolescents. IMPACT: The review underscores the urgent need for more knowledge from other North American countries, particularly those with growing ACB migrant populations.


Asunto(s)
Pueblo Africano , Población Negra , Pueblos Caribeños , Embarazo en Adolescencia , Adolescente , Niño , Femenino , Humanos , Masculino , Embarazo , África/etnología , África/epidemiología , Población Negra/estadística & datos numéricos , Región del Caribe/epidemiología , Región del Caribe/etnología , Embarazo en Adolescencia/etnología , Embarazo en Adolescencia/estadística & datos numéricos , América del Norte/epidemiología
3.
J Affect Disord ; 358: 42-51, 2024 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-38705522

RESUMEN

BACKGROUND: The COVID-19 pandemic negatively impacted mental health in the general population in Britain. Ethnic minority people suffered disproportionately, in terms of health and economic outcomes, which may contribute to poorer mental health. We compare the prevalence of depression and anxiety across 18 ethnic groups in Britain during the COVID-19 pandemic. METHODS: Secondary analysis of cross-sectional data (February-November 2021) from 12,161 participants aged 18-60 years old (N with data on outcomes = 11,540 for depression & 11,825 for anxiety), obtained from the Evidence for Equality National Survey (EVENS). Data were weighted to account for selection bias and coverage bias. Weighted regression models examined ethnic differences in depression (Centre for Epidemiologic Studies Depression Scale) and anxiety (Generalised Anxiety Disorder-7). Effect modification analyses explored whether ethnic differences in outcomes were consistent within age and sex sub-groups. RESULTS: Compared to White British people, greater odds of anxiety caseness (and greater anxiety symptoms) were observed for Arab (OR = 2.57; 95 % CI = 1.35-4.91), Mixed White and Black Caribbean (1.57; 1.07-2.30), any other Black (2.22, 1.28-3.87) and any other Mixed (1.58; 1.08-2.31) ethnic groups. Lower odds of depression caseness (and lower depressive symptoms) were identified for Chinese (0.63; 0.46-0.85), Black African (0.60; 0.46-0.79), and any other Asian (0.55; 0.42-0.72) ethnic groups. LIMITATIONS: Cross-sectional data limits the opportunity to identify changes in ethnic inequalities in mental health over time. CONCLUSIONS: We have identified certain ethnic groups who may require more targeted mental health support to ensure equitable recovery post-pandemic. Despite finding lower levels of depression for some ethnic groups, approximately one third of people within each ethnic group met criteria for depression.


Asunto(s)
COVID-19 , Etnicidad , Adolescente , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Adulto Joven , Ansiedad/etnología , Ansiedad/epidemiología , Trastornos de Ansiedad/etnología , Trastornos de Ansiedad/epidemiología , COVID-19/etnología , Estudios Transversales , Depresión/etnología , Depresión/epidemiología , Etnicidad/estadística & datos numéricos , Etnicidad/psicología , Salud Mental/etnología , Salud Mental/estadística & datos numéricos , Prevalencia , SARS-CoV-2 , Reino Unido/epidemiología , Reino Unido/etnología , Árabes , Grupos Raciales , Población Negra , Pueblos Caribeños , Población Blanca , Pueblo Africano , Pueblo Asiatico
4.
Nutr Diabetes ; 14(1): 17, 2024 04 10.
Artículo en Inglés | MEDLINE | ID: mdl-38600065

RESUMEN

BACKGROUND/OBJECTIVES: We investigated whether dietary interventions, i.e. a fasting mimicking diet (FMD, Prolon®) or glycocalyx mimetic supplementation (EndocalyxTM) could stabilize microvascular function in Surinamese South-Asian patients with type 2 diabetes (SA-T2DM) in the Netherlands, a patient population more prone to develop vascular complications. SUBJECTS/METHODS: A randomized, placebo controlled, 3-arm intervention study was conducted in 56 SA-T2DM patients between 18 and 75 years old, for 3 consecutive months, with one additional follow up measurement 3 months after the last intervention. Sublingual microcirculation was assessed with SDF-imaging coupled to the GlycoCheckTM software, detecting red blood cell velocity, capillary density, static and dynamic perfused boundary region (PBR), and the overall microvascular health score (MVHS). Linear mixed models and interaction analysis were used to investigate the effects the interventions had on microvascular function. RESULTS: Despite a temporal improvement in BMI and HbA1c after FMD the major treatment effect on microvascular health was worsening for RBC-velocity independent PBRdynamic, especially at follow-up. Glycocalyx supplementation, however, reduced urinary MCP-1 presence and improved both PBRdynamic and MVHSdynamic, which persisted at follow-up. CONCLUSIONS: We showed that despite temporal beneficial changes in BMI and HbA1c after FMD, this intervention is not able to preserve microvascular endothelial health in Dutch South-Asian patients with T2DM. In contrast, glycocalyx mimetics preserves the microvascular endothelial health and reduces the inflammatory cytokine MCP-1. CLINICAL STUDY REGISTRATION: NCT03889236.


Asunto(s)
Pueblos Caribeños , Diabetes Mellitus Tipo 2 , Pueblos Sudamericanos , Adolescente , Adulto , Anciano , Humanos , Persona de Mediana Edad , Adulto Joven , Dieta , Hemoglobina Glucada , Países Bajos
5.
PLoS One ; 19(3): e0295639, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38502654

RESUMEN

INTRODUCTION: Complex challenges amongst ageing cohorts of adolescents and adults living with perinatally acquired HIV (PaHIV) may impact on hospitalisation. We report hospitalisation rates and explored predictive factors for hospitalisation in adolescents and adults (10-35 years) living with PaHIV in England. METHOD: Retrospective observational cohort study over a three-year period 2016-2019. Data collected included cause and duration of hospitalisation, HIV viral load and CD4 lymphocyte count. The primary outcome was overnight hospitalisation. Patients exited at study end/ transfer of care (TOC)/ loss to follow up (LTFU) or death. Maternity/hospital admissions at other centres were excluded. Admission rates per 100 person-years (95% CI) were calculated by age group. Negative binomial regression with generalized estimating equations was performed. RESULTS: 255 patients contributed 689 person-years of follow up. 56% were female and 83% were of a Black, Black British, Caribbean or African ethnicity. At baseline, the median age was 19 years (IQR 16-22). 36 individuals experienced a total of 62 admissions which resulted in 558 overnight stays (median stay was 5 nights). One person died (lymphoma), six had TOC and one was LTFU by the end of the three-year study period. Crude incidence of admission for the whole cohort was 9.0 per 100 PY (6.9-11.6). The respective crude incidence rates were 1.5 PY (0.0-8.2) in those aged 10-14 years and 3.5 PY (1.5-7.0) in the 15-19-year-olds. In those aged 20-24 years it was 14.5 PY (10.1-20.2) and in those >25 years the crude incidence rate was 11.7 PY (6.9-18.5). Factors significantly associated with admission were a CD4 lymphocyte count <200 cells/uL, adjusted IRR 4.0 (1.8-8.8) and a history of a CDC-C diagnosis, adjusted IRR 2.9 (1.6-5.3). 89% admissions were HIV-related: 45% new/current CDC-C diagnoses, 76% due to infection. CONCLUSIONS: Hospitalisation rates were four-fold higher in adults (>20 years of age) compared to adolescents (10-19-year-olds). The continuing challenges experienced by PaHIV youth require enhanced multidisciplinary support throughout adulthood.


Asunto(s)
Infecciones por VIH , VIH , Adolescente , Adulto , Femenino , Humanos , Masculino , Adulto Joven , Recuento de Linfocito CD4 , Hospitalización , Estudios Retrospectivos , Niño , Población Negra , Pueblos Caribeños , Pueblo Africano
6.
Res Aging ; 46(7-8): 414-425, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38361310

RESUMEN

Introduction: Identifying effective strategies to enroll African American, Caribbean, and Hispanic/Latino adults ≥65 years of age in health research is a public health priority. This study aimed to explore intergenerational influence (IGI) among these populations living throughout Florida. Methods: African American, Caribbean, and Hispanic/Latino adults ≥65 years of age and a trusted family member/friend between 25-64 years participated in virtual listening sessions (LS). Culturally matched facilitators used a semi-structured guide to lead LS that was recorded, transcribed, and uploaded into NVivo©. The constant comparative method was used for analysis. Results: 363 African American, Caribbean, and Hispanic/Latino participated in LS. Five (5) themes relate to IGI emerged: (1) parent-child relationships; (2) family caregiving/parental illness experiences; (3) historical research maltreatment; (4) transfer of cultural knowledge; and (5) future generations. Discussion: Our findings support that IGI can be leveraged to increase the participation of African American, Caribbean, and Hispanic/Latino older adults in health research.


Asunto(s)
Negro o Afroamericano , Hispánicos o Latinos , Relaciones Intergeneracionales , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Investigación Biomédica , Negro o Afroamericano/psicología , Toma de Decisiones , Florida , Hispánicos o Latinos/psicología , Relaciones Intergeneracionales/etnología , Relaciones Padres-Hijo/etnología , Pueblos Caribeños/psicología
7.
J Ethnobiol Ethnomed ; 20(1): 8, 2024 Jan 12.
Artículo en Inglés | MEDLINE | ID: mdl-38217006

RESUMEN

BACKGROUND: Despite the availability of mainstream biomedical healthcare in New York City (NYC), community-based ethnomedicine practices remain a low-cost, culturally relevant treatment for many immigrants. Previous urban ethnobotany research in NYC has established that several Caribbean communities continue using medicinal plants for women's health after immigration. This study sought to address to what extent: (1) NYC Haitian women continue using medicinal plants for women's health after migration; (2) their plants and the conditions treated were similar to those identified in an earlier survey with NYC immigrants from the Dominican Republic. METHODS: Through an ethnobotanical survey, 100 Haitian women living in NYC and born in Haiti were interviewed about their knowledge of medicinal plants for women's health conditions. Reported species were purchased based on local names in NYC Haitian stores and markets, vouchered, and identified. RESULTS: Nearly all Haitian women (97%) reported using medicinal plants while living in Haiti. Most Haitian women continued using medicinal plants after coming to the USA (83%). The 14% decrease, although significant (z = 3.3; p = 0.001), was mainly due to logistical difficulties with sourcing plants after recent immigration. Popular medicinal plant species reported were primarily global food plants, re-emphasizing the intertwined food-medicine relationship in Caribbean diasporas. Comparison with data from NYC Dominicans identified childbirth and puerperium, gynecological infections, and vaginal cleansing as priority Haitian women's health concerns treated with plants. CONCLUSION: Our findings support the global nature of Caribbean migrant plant pharmacopeia, predominantly centered around food plants and adapted to transnational urban settings. They underscore cultural diversity, dispelling the notion of one uniform traditional knowledge system labeled "Caribbean." The importance of preventative medicine for women's health, particularly the regular consumption of "healthy" foods or teas highlights the role food plants play in maintaining health without seeking treatment for a particular condition. Cross-cultural comparisons with other NYC Caribbean immigrants emphasize the importance of conducting ethnobotanical surveys to ground-truth plant use in the community. Such surveys can also identify culture-specific health priorities treated with these plants. Healthcare providers can leverage these insights to formulate culturally relevant and community-tailored healthcare strategies aligned with Haitian women's health beliefs and needs.


Asunto(s)
Pueblos Caribeños , Plantas Comestibles , Plantas Medicinales , Femenino , Humanos , Ciudad de Nueva York , Salud de la Mujer
8.
Eur J Hum Genet ; 32(6): 697-707, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38182743

RESUMEN

Polygenic scores (PGSs) provide an individual level estimate of genetic risk for any given disease. Since most PGSs have been derived from genome wide association studies (GWASs) conducted in populations of White European ancestry, their validity in other ancestry groups remains unconfirmed. This is especially relevant for cardiometabolic diseases which are known to disproportionately affect people of non-European ancestry. Thus, we aimed to evaluate the performance of PGSs for glycaemic traits (glycated haemoglobin, and type 1 and type 2 diabetes mellitus), cardiometabolic risk factors (body mass index, hypertension, high- and low-density lipoproteins, and total cholesterol and triglycerides) and cardiovascular diseases (including stroke and coronary artery disease) in people of White European, South Asian, and African Caribbean ethnicity in the UK Biobank. Whilst PGSs incorporated some GWAS data from multi-ethnic populations, the vast majority originated from White Europeans. For most outcomes, PGSs derived mostly from European populations had an overall better performance in White Europeans compared to South Asians and African Caribbeans. Thus, multi-ancestry GWAS data are needed to derive ancestry stratified PGSs to tackle health inequalities.


Asunto(s)
Herencia Multifactorial , Población Blanca , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pueblo Asiatico/genética , Población Negra/genética , Enfermedades Cardiovasculares/genética , Diabetes Mellitus Tipo 2/genética , Estudio de Asociación del Genoma Completo , Población Blanca/genética , Reino Unido , Personas del Sur de Asia/genética , Pueblos Caribeños/genética
9.
Clin Infect Dis ; 78(3): 594-602, 2024 03 20.
Artículo en Inglés | MEDLINE | ID: mdl-37647517

RESUMEN

BACKGROUND: To protect healthcare workers (HCWs) from the consequences of disease due to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), it is necessary to understand the risk factors that drive exposure and infection within hospitals. Insufficient consideration of key socioeconomic variables is a limitation of existing studies that can lead to bias and residual confounding of proposed risk factors for infection. METHODS: The Co-STARs study prospectively enrolled 3679 HCWs between April 2020 and September 2020. We used multivariate logistic regression to comprehensively characterize the demographic, occupational, socioeconomic, and environmental risk factors for SARS-CoV-2 seropositivity. RESULTS: After adjusting for key confounders, relative household overcrowding (odds ratio [OR], 1.4 [95% confidence interval {CI}, 1.1-1.9]; P = .006), Black, Black British, Caribbean, or African ethnicity (OR, 1.7 [95% CI, 1.2-2.3]; P = .003), increasing age (ages 50-60 years: OR, 1.8 [95% CI, 1.3-2.4]; P < .001), lack of access to sick pay (OR, 1.8 [95% CI, 1.3-2.4]; P < .001). CONCLUSIONS: Socioeconomic and demographic factors outside the hospital were the main drivers of infection and exposure to SARS-CoV-2 during the first wave of the pandemic in an urban pediatric referral hospital. Overcrowding and out-of-hospital SARS-CoV-2 contact are less amenable to intervention. However, lack of access to sick pay among externally contracted staff is more easily rectifiable. Our findings suggest that providing easier access to sick pay would lead to a decrease in SARS-CoV-2 transmission and potentially that of other infectious diseases in hospital settings. CLINICAL TRIALS REGISTRATION: NCT04380896.


Asunto(s)
COVID-19 , SARS-CoV-2 , Humanos , Persona de Mediana Edad , COVID-19/epidemiología , Demografía , Personal de Salud , Hospitales , Estudios Prospectivos , Factores de Riesgo , Factores Socioeconómicos , Reino Unido/epidemiología , Población Negra , Pueblos Caribeños , Pueblo Africano
10.
Clin Genitourin Cancer ; 22(1): e148-e155.e1, 2024 02.
Artículo en Inglés | MEDLINE | ID: mdl-37903669

RESUMEN

INTRODUCTION: Among Hispanic-American (HA) men, prostatic cancer (PCa) accounts for nearly one-quarter of the total cancer burden. We sought to identify differences in PCa presentation and treatment status for HA subgroups based on country/region of origin. MATERIAL AND METHODS: Using the National Cancer Database, we identified patients with histologically confirmed prostate adenocarcinoma with reported race/ethnicity, clinical staging, Gleason score ≥ 6, and PSA level at diagnosis from 2010 to 2016. HAs were divided into 4 subgroups: Mexican, Puerto Ricans, Cubans, and Central/South Americans. Non-Hispanic White (NHW) men were used as a reference group. Statistical analysis was derived from the Kruskal-Wallis test for continuous variables and χ2 test for categorical variables. Models were constructed to evaluate the association of Hispanic country of origin with metastatic presentation and treatment status. RESULTS: A total of 428,829 patients were included, with 5625 (1.3%) classified as HA. Within the Hispanic group, 2880 (51.2%) were Mexican, 999 (17.8%) Puerto Rican, 477 (8.5%) Cuban, and 1269 (22.6%) South/Central American. Mexican men presented with higher median PSA, more Gleason 8 to 10 disease, and higher rates of metastatic presentation compared to NHW and other HA subgroups (all, p < .01). Metastatic rates over the study period for Mexican, Puerto Rican, Cuban, and South/Central Americans were 6.4 (±1.2), 5.3 (±3.0), 3.2 (±2.0), and 4.6% (±1.7), respectively (p = .01). Treatment rates were 89.1, 89.6, 92.4, and 89.3% for Mexican, Puerto Rican, Cuban, and South/Central Americans, respectively (p = .19). Mexican men had higher odds of initial metastatic presentation (OR: 1.32; 95%CI: 1.07-1.63, p = .01) but lower odds of receiving treatment (0.68; 0.55-0.85, p < .01). CONCLUSION: Men of Mexican origin presented with more advanced PCa when compared to NHW and other Hispanic subgroups. Our results warrant further investigation into potential biological factors affecting Hispanic patients as well as the identification of treatment barriers for this vulnerable population.


Asunto(s)
Pueblos Caribeños , Etnicidad , Neoplasias de la Próstata , Humanos , Masculino , Hispánicos o Latinos , Antígeno Prostático Específico , Neoplasias de la Próstata/terapia , Neoplasias de la Próstata/epidemiología , Estados Unidos/epidemiología , Blanco
11.
J Allergy Clin Immunol ; 153(2): 408-417, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38000696

RESUMEN

BACKGROUND: Black adults are disproportionately affected by asthma and are often considered a homogeneous group in research studies despite cultural and ancestral differences. OBJECTIVE: We sought to determine if asthma morbidity differs across adults in Black ethnic subgroups. METHODS: Adults with moderate-severe asthma were recruited across the continental United States and Puerto Rico for the PREPARE (PeRson EmPowered Asthma RElief) trial. Using self-identifications, we categorized multiethnic Black (ME/B) participants (n = 226) as Black Latinx participants (n = 146) or Caribbean, continental African, or other Black participants (n = 80). African American (AA/B) participants (n = 518) were categorized as Black participants who identified their ethnicity as being American. Baseline characteristics and retrospective asthma morbidity measures (self-reported exacerbations requiring systemic corticosteroids [SCs], emergency department/urgent care [ED/UC] visits, hospitalizations) were compared across subgroups using multivariable regression. RESULTS: Compared with AA/B participants, ME/B participants were more likely to be younger, residing in the US Northeast, and Spanish speaking and to have lower body mass index, health literacy, and <1 comorbidity, but higher blood eosinophil counts. In a multivariable analysis, ME/B participants were significantly more likely to have ED/UC visits (incidence rate ratio [IRR] = 1.34, 95% CI = 1.04-1.72) and SC use (IRR = 1.27, 95% CI = 1.00-1.62) for asthma than AA/B participants. Of the ME/B subgroups, Puerto Rican Black Latinx participants (n = 120) were significantly more likely to have ED/UC visits (IRR = 1.64, 95% CI = 1.22-2.21) and SC use for asthma (IRR = 1.43, 95% CI = 1.06-1.92) than AA/B participants. There were no significant differences in hospitalizations for asthma among subgroups. CONCLUSIONS: ME/B adults, specifically Puerto Rican Black Latinx adults, have higher risk of ED/UC visits and SC use for asthma than other Black subgroups.


Asunto(s)
Asma , Población Negra , Adulto , Humanos , Asma/complicaciones , Asma/epidemiología , Asma/etnología , Servicio de Urgencia en Hospital/estadística & datos numéricos , Etnicidad/estadística & datos numéricos , Hispánicos o Latinos/etnología , Hispánicos o Latinos/estadística & datos numéricos , Morbilidad , Estudios Retrospectivos , Estados Unidos/epidemiología , Puerto Rico/etnología , Negro o Afroamericano/etnología , Negro o Afroamericano/estadística & datos numéricos , Pueblos Caribeños/estadística & datos numéricos , África/etnología , Población Negra/etnología , Población Negra/estadística & datos numéricos
12.
Biomed Pharmacother ; 170: 115977, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38056237

RESUMEN

Warfarin, an oral anticoagulant, has been used for decades to prevent thromboembolic events. The complex interplay between CYP2C9 and VKORC1 genotypes on warfarin PK and PD properties is not fully understood in special sub-groups of patients. This study aimed to externally validate a population pharmacokinetic/pharmacodynamic (PK/PD) model for the effect of warfarin on international normalized ratio (INR) and to evaluate optimal dosing strategies based on the selected covariates in Caribbean Hispanic patients. INR, and CYP2C9 and VKORC1 genotypes from 138 patients were used to develop a population PK/PD model in NONMEM. The structural definition of a previously published PD model for INR was implemented. A numerical evaluation of the parameter-covariate relationship was performed. Simulations were conducted to determine optimal dosing strategies for each genotype combinations, focusing on achieving therapeutic INR levels. Findings revealed elevated IC50 for G/G, G/A, and A/A VKORC1 haplotypes (11.76, 10.49, and 9.22 mg/L, respectively), in this population compared to previous reports. The model-guided dosing analysis recommended daily warfarin doses of 3-5 mg for most genotypes to maintain desired INR levels, although subjects with combination of CYP2C9 and VKORC1 genotypes * 2/* 2-, * 2/* 3- and * 2/* 5-A/A would require only 1 mg daily. This research underscores the potential of population PK/PD modeling to inform personalized warfarin dosing in populations typically underrepresented in clinical studies, potentially leading to improved treatment outcomes and patient safety. By integrating genetic factors and clinical data, this approach could pave the way for more effective and tailored anticoagulation therapy in diverse patient groups.


Asunto(s)
Hidrocarburo de Aril Hidroxilasas , Warfarina , Humanos , Anticoagulantes/farmacología , Citocromo P-450 CYP2C9/genética , Genotipo , Hispánicos o Latinos/genética , Vitamina K Epóxido Reductasas/genética , Pueblos Caribeños
13.
J Clin Gastroenterol ; 58(3): 259-270, 2024 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-36753456

RESUMEN

BACKGROUND: Colorectal cancer screening uptake in the United States overall has increased, but racial/ethnic disparities persist and data on colonoscopy uptake by racial/ethnic subgroups are lacking. We sought to better characterize these trends and to identify predictors of colonoscopy uptake, particularly among Asian and Hispanic subgroups. STUDY: We used data from the New York City Community Health Survey to generate estimates of up-to-date colonoscopy use in Asian and Hispanic subgroups across 6 time periods spanning 2003-2016. For each subgroup, we calculated the percent change in colonoscopy uptake over the study period and the difference in uptake compared to non-Hispanic Whites in 2015-2016. We also used multivariable logistic regression to identify predictors of colonoscopy uptake. RESULTS: All racial and ethnic subgroups with reliable estimates saw a net increase in colonoscopy uptake between 2003 and 2016. In 2015-2016, compared with non-Hispanic Whites, Puerto Ricans, Dominicans, and Central/South Americans had higher colonoscopy uptake, whereas Chinese, Asian Indians, and Mexicans had lower uptake. On multivariable analysis, age, marital status, insurance status, primary care provider, receipt of flu vaccine, frequency of exercise, and smoking status were the most consistent predictors of colonoscopy uptake (≥4 time periods). CONCLUSIONS: We found significant variation in colonoscopy uptake among Asian and Hispanic subgroups. We also identified numerous demographic, socioeconomic, and health-related predictors of colonoscopy uptake. These findings highlight the importance of examining health disparities through the lens of disaggregated racial/ethnic subgroups and have the potential to inform future public health interventions.


Asunto(s)
Asiático , Colonoscopía , Neoplasias Colorrectales , Hispánicos o Latinos , Grupos de Población en Estados Unidos , Humanos , Pueblos Caribeños/estadística & datos numéricos , Colonoscopía/estadística & datos numéricos , Colonoscopía/tendencias , Hispánicos o Latinos/etnología , Hispánicos o Latinos/estadística & datos numéricos , Ciudad de Nueva York/epidemiología , Pueblos de América del Norte/estadística & datos numéricos , Estados Unidos/epidemiología , Asiático/estadística & datos numéricos , Neoplasias Colorrectales/diagnóstico , Neoplasias Colorrectales/epidemiología , Neoplasias Colorrectales/etnología , Detección Precoz del Cáncer/métodos , Detección Precoz del Cáncer/estadística & datos numéricos , Detección Precoz del Cáncer/tendencias , Blanco , Disparidades en Atención de Salud/etnología , Disparidades en Atención de Salud/estadística & datos numéricos , Grupos de Población en Estados Unidos/etnología , Grupos de Población en Estados Unidos/estadística & datos numéricos
14.
Gynecol Oncol ; 181: 118-124, 2024 02.
Artículo en Inglés | MEDLINE | ID: mdl-38150836

RESUMEN

OBJECTIVE: To evaluate patterns and trends of uterine cancer among Hispanic subgroups. METHODS: The United States Cancer Statistics (USCS), National Cancer Database (NCDB), and World Population Review were used to obtain data on incidence, demographic characteristics, and cancer histology. Joinpoint regression program was used for statistical analysis. RESULTS: Based on 2001-2017 USCS data, the overall incidence of uterine cancer was 27.46 vs. 23.29/100,000 in Hispanics vs. non-Hispanic Whites. There was an over 2-fold higher annual increase in the incidence in Hispanics (1.94%; p < 0.001) vs. Whites (0.85%; p < 0.001), particularly in local stage disease. There was an increase in grade 1 endometrioid carcinoma (1.48%; p < 0.001 vs. -0.52%; p = 0.1) and aggressive histologic subtypes (4.04% p = 0.000 vs. 2.53% p = 0.000) in Hispanics vs. Whites. Using the NCDB (2004-2015), we analyzed 17,351 Hispanics by subgroup (Mexican, South/Central American, Puerto Rican, Cuban, and Dominican). Over the 12 years, there was an increase in the proportion of uterine cancer diagnoses in all Hispanics (5.2% to 11.0%; p < 0.0001). Dominican patients experienced the largest increase in diagnosis (2.6% to 14.9%; p < 0.0001), the highest proportion of advanced disease at 28.0% (p < 0.0001), and the highest incidence of non-endometrioid histologies at 37.1% (p < 0.0001). World Population Review 2023 revealed the highest female obesity rates in Puerto Rico (51.4%), the Dominican Republic (34.1%), and Mexico (32.8%). CONCLUSION: Uterine cancer incidence is increased in Hispanics, with the largest increase in Dominican women with more advanced stages and high-risk histologic subtypes. The impact of obesity on cancer risk, especially in Puerto Ricans, Dominicans, and Mexicans, warrants further investigation.


Asunto(s)
Pueblos Caribeños , Hispánicos o Latinos , Pueblos de América del Norte , Neoplasias Uterinas , Estados Unidos/epidemiología , Humanos , Femenino , Puerto Rico/epidemiología , Neoplasias Uterinas/epidemiología , Obesidad
16.
Epilepsy Behav ; 146: 109313, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37544193

RESUMEN

INTRODUCTION: Suboptimal medication adherence is common in people with epilepsy (PWE) and disproportionally prevalent among racially/ethnically diverse patients. Understanding reasons and risks of suboptimal adherence is critical to developing interventions that reduce negative health outcomes. This cross-sectional study characterized common barriers to medication self-management, prevalence of negative medication beliefs, and gaps in epilepsy knowledge among predominantly African American and Caribbean American PWE and examined their interrelationships. MATERIALS AND METHODS: Sixty-three PWE (Age = 42.1 ± 13.2; 60% female; 79% Black; 19% Hispanic/Latino) completed validated self-report questionnaires about medication self-management, medication beliefs, and epilepsy knowledge. Correlations and t-tests examined interrelationships. RESULTS: Four barriers to medication self-management were common, including not taking antiseizure medications at the same time every day, forgetting doses, not planning refills before running out, and spreading out doses when running low. More than half the sample believed medications were overused by prescribers. Nearly one-third believed medications were harmful, and nearly a quarter believed their antiseizure medications were minimally necessary with almost half reporting elevated concerns about negative consequences of antiseizure medications. Poorer medication self-management was associated with stronger beliefs that medications in general are harmful/overused by prescribers. Individuals who were "accepting" of their antiseizure medications (i.e., high perceived necessity, low concerns) were less likely to spread out time between doses when running low compared to non-accepting counterparts. Knowledge gaps related to the cause of seizures/epilepsy, chronicity of epilepsy treatment, and seizure semiology/diagnosis were common. Nevertheless, epilepsy knowledge was unrelated to medication self-management and medication beliefs. CONCLUSIONS: In these PWE, the most prevalent reasons for suboptimal medication self-management were behaviorally mediated and potentially modifiable. Negative medication beliefs and misconceptions about epilepsy and its treatment were common. Results further suggest that interventions addressing negative medication beliefs will be more effective than knowledge-based psychoeducation alone to improve medication self-management in this patient population.


Asunto(s)
Epilepsia , Conocimientos, Actitudes y Práctica en Salud , Automanejo , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Negro o Afroamericano , Estudios Transversales , Epilepsia/tratamiento farmacológico , Epilepsia/epidemiología , Cumplimiento de la Medicación , Encuestas y Cuestionarios , Estados Unidos , Pueblos Caribeños
17.
BMJ Open ; 13(8): e073176, 2023 08 16.
Artículo en Inglés | MEDLINE | ID: mdl-37586868

RESUMEN

INTRODUCTION: Living donor (LD) kidney transplant (KT) is the best treatment option for many patients with kidney failure as it improves quality of life and survival compared with dialysis and deceased donor KT. Unfortunately, LDKT is underused, especially among groups marginalised by race and ethnicity. African, Caribbean and Black (ACB) patients are 60%-70% less likely to receive LDKT in Canada compared with white patients. Research from the USA and the UK suggests that mistrust, cultural and generational norms, access, and affordability may contribute to inequities. To date, no Canadian studies have explored the beliefs and behaviours related to LDKT in ACB communities. Research approaches that use a critical, community-based approach can help illuminate broader structural factors that may shape individual beliefs and behaviours. In this qualitative study, we will investigate barriers to accessing LDKT in ACB communities in the Greater Toronto Area, to enhance our understanding of the perspectives and experiences of ACB community members, both with and without lived experience of chronic kidney disease (CKD). METHODS AND ANALYSIS: Hospital-based and community-based recruitment strategies will be used to recruit participants for focus groups and individual interviews. Participants will include self-identified ACB individuals with and without experiences of CKD and nephrology professionals. Collaboration with ACB community partners will facilitate a community-based research approach. Data will be analysed using reflexive thematic analysis and critical race theory. Findings will be revised based on feedback from ACB community partners. ETHICS AND DISSEMINATION: This study has been approved by the University Health Network Research Ethics Board UHN REB file #15-9775. Study findings will contribute to the codevelopment of culturally safe and responsive educational materials to raise awareness about CKD and its treatments and to improve equitable access to high-quality kidney care, including LDKT, for ACB patients.


Asunto(s)
Disparidades en Atención de Salud , Trasplante de Riñón , Donadores Vivos , Insuficiencia Renal Crónica , Adulto , Femenino , Humanos , Masculino , Pueblo Africano/estadística & datos numéricos , Población Negra/estadística & datos numéricos , Pueblos Caribeños/estadística & datos numéricos , Disparidades en Atención de Salud/etnología , Disparidades en Atención de Salud/estadística & datos numéricos , Trasplante de Riñón/estadística & datos numéricos , Ontario , Investigación Cualitativa , Insuficiencia Renal Crónica/etnología , Insuficiencia Renal Crónica/terapia
18.
J Autoimmun ; 139: 103086, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37356346

RESUMEN

OBJECTIVES: To describe the epidemiology, characteristics, response to initial treatment, and outcomes of Adult-Onset Still's disease (AOSD) in the Afro-Caribbean population of Martinique with free and easy access to specialised care. METHODS: We conducted a retrospective study from 2004 to 2022 in the island of Martinique, French West-Indies which total population was 354 800 in 2021. Patients were identified from multiple sources including standardised databases. To be included, patients had to be residents of the island and fulfilled Yamaguchi and/or Fautrel's criteria for AOSD, or have a compatible disease course, without a diagnosis of cancer, auto-immune disease or another auto-inflammatory disorder. Date of diagnosis, clinical and biological characteristics, treatments, and outcomes were collected. RESULTS: The prevalence was 7.6/100 000 inhabitants in 2021. The mean incidence was 0.4/100 000 during study period. Thirty-three patients (70.6% females) with a median follow-up of 35 months [7.5 to 119] were included. Twenty-six patients (78.8%) had a systemic pattern. Patients with a systemic monocyclic pattern had significantly more polyarticular involvement than patients with systemic polycyclic pattern (p = 0.016). Pulmonary involvement occurred in 51.5% of patients at diagnosis and systemic Pouchot score has been identified as an independent predictive factor for pulmonary involvement; OR of 3.29 [CI 95% 1.20; 9.01]. At first flare, all patients but one received oral glucocorticoids, 11 patients (32.4%) received intravenous glucocorticoids pulse and 12 patients (33%) received anti-IL1 therapy. Nineteen patients (57%) relapsed in a median time of 9 months [6 to 12] Three patients (9%) developed hemophagocytosis lymphohistiocytosis, fatal in 1 case. All deceased patients (n = 4, 11.76%) belonged to the systemic polycyclic pattern, with an event-free survival of 13.6 months [IQR 5.7; 29.5] CONCLUSION: AOSD in the Afro-Caribbean population of Martinique shares some similarities with other ethnic groups, but exhibit differences, such as a high proportion of lung involvement. Comparative studies are needed to confirm these results.


Asunto(s)
Enfermedad de Still del Adulto , Adulto , Femenino , Humanos , Masculino , Pueblos Caribeños/estadística & datos numéricos , Etnicidad , Glucocorticoides/uso terapéutico , Martinica/epidemiología , Estudios Retrospectivos , Enfermedad de Still del Adulto/diagnóstico , Enfermedad de Still del Adulto/tratamiento farmacológico , Enfermedad de Still del Adulto/epidemiología , Enfermedad de Still del Adulto/etnología , Indias Occidentales/epidemiología
19.
Elife ; 122023 06 09.
Artículo en Inglés | MEDLINE | ID: mdl-37294081

RESUMEN

Our interest in the genetic basis of skin color variation between populations led us to seek a Native American population with genetically African admixture but low frequency of European light skin alleles. Analysis of 458 genomes from individuals residing in the Kalinago Territory of the Commonwealth of Dominica showed approximately 55% Native American, 32% African, and 12% European genetic ancestry, the highest Native American genetic ancestry among Caribbean populations to date. Skin pigmentation ranged from 20 to 80 melanin units, averaging 46. Three albino individuals were determined to be homozygous for a causative multi-nucleotide polymorphism OCA2NW273KV contained within a haplotype of African origin; its allele frequency was 0.03 and single allele effect size was -8 melanin units. Derived allele frequencies of SLC24A5A111T and SLC45A2L374F were 0.14 and 0.06, with single allele effect sizes of -6 and -4, respectively. Native American genetic ancestry by itself reduced pigmentation by more than 20 melanin units (range 24-29). The responsible hypopigmenting genetic variants remain to be identified, since none of the published polymorphisms predicted in prior literature to affect skin color in Native Americans caused detectable hypopigmentation in the Kalinago.


The variation in skin colour of modern humans is a product of thousands of years of natural selection. All human ancestry can be traced back to African populations, which were dark-skinned to protect them from the intense UV rays of the sun. Over time, humans spread to other parts of the world, and people in the northern latitudes with lower UV developed lighter skin through natural selection. This was likely driven by a need for vitamin D, which requires UV rays for production. Separate genetic mechanisms were involved in the evolution of lighter skin in each of the two main branches of human migration: the European branch (which includes peoples on the Indian subcontinent and Europe) and the East Asian branch (which includes East Asia and the Americas). A variant of the gene SLC24A5 is the primary contributor to lighter skin colour in the European branch, but a corresponding variant driving light skin colour evolution in the East Asian branch remains to be identified. One obstacle to finding such variants is the high prevalence of European ancestry in most people groups, which makes it difficult to separate the influence of European genes from those of other populations. To overcome this issue, Ang et al. studied a population that had a high proportion of Native American and African ancestors, but a relatively small proportion of European ancestors, the Kalinago people. The Kalinago live on the island of Dominica, one of the last Caribbean islands to be colonised by Europeans. Ang et al. were able to collect hundreds of skin pigmentation measurements and DNA samples of the Kalinago, to trace the effect of Native American ancestry on skin colour. Genetic analysis confirmed their oral history records of primarily Native American (55%) ­ one of the highest of any Caribbean population studied to date ­ compared with African (32%) and European (12%) ancestries. Native American ancestry had the highest effect on pigmentation and reduced it by more than 20 melanin units, while the European mutations in the genes SLC24A5 and SLC45A2 and an African gene variant for albinism only contributed 5, 4 and 8 melanin units, respectively. However, none of the so far published gene candidates responsible for skin lightening in Native Americans caused a detectable effect. Therefore, the gene responsible for lighter skin in Native Americans/East Asians has yet to be identified. The work of Ang et al. represents an important step in deciphering the genetic basis of lighter skin colour in Native Americans or East Asians. A better understanding of the genetics of skin pigmentation may help to identify why, for example, East Asians are less susceptible to melanoma than Europeans, despite both having a lighter skin colour. It may also further acceptance of how variations in human skin tones are the result of human migration, random genetic variation, and natural selection for pigmentation in different solar environments.


Asunto(s)
Indio Americano o Nativo de Alaska , Pueblos Caribeños , Melaninas , Pigmentación de la Piel , Humanos , Alelos , Indio Americano o Nativo de Alaska/genética , Población Negra/genética , Pueblos Caribeños/genética , Etnicidad , Melaninas/genética , Polimorfismo de Nucleótido Simple , Pigmentación de la Piel/genética , Población Blanca/genética
20.
PLoS One ; 18(6): e0275770, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37342999

RESUMEN

This study investigates the role of source credibility on minority participant recruitment, particularly African American and Black Caribbean patients. A total of nine focus groups (N = 48 participants) were conducted with both patient groups and clinical research coordinators (CRCs). Using the elaboration likelihood model as a guiding framework for analysis, this study found that the credibility of research coordinators (or other professionals who recruit for research studies and clinical trials) was instrumental in shaping attitudes of prospective participants. The perspectives of patients and CRCs aligned closely, with few exceptions. For both groups, professionalism and professional displays (clothing, institutional artifacts) enhanced perceived expertise, a core component of credibility. Trustworthiness, another important component of credibility, was fostered through homophily between recruiter and patient, expressions of goodwill and assuaging anxiety about CRCs' financial motivations for recruitment. Additionally, CRCs believed that credibility was supported when CRCs could emphasize transparency and truthfulness in communication. The importance of these findings for the development of empirically-based training programs to improve communication practices in recruitment contexts is discussed.


Asunto(s)
Población Negra , Negro o Afroamericano , Ensayos Clínicos como Asunto , Selección de Paciente , Confianza , Humanos , Actitud , Estudios Prospectivos , Pueblos Caribeños , Grupos Focales
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA