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1.
medRxiv ; 2024 Aug 28.
Article in English | MEDLINE | ID: mdl-39252924

ABSTRACT

Background Nearly all US adults exceed sodium recommendations, which increases cardiovascular risk. Understanding racial and ethnic differences in sodium sources and behaviors could lead to nuanced public health messaging, dietary interventions, and clinical guidance to more equitably achieve population-level sodium reduction. Methods Using National Health and Nutrition Examination Survey 2017-2020 pre-pandemic data, racial and ethnic differences in sodium sources and sodium-related behaviors (e.g., salt use at the table and in food preparation, doctor advice to reduce sodium, attempts to reduce sodium, and label reading) were assessed using weighted chi-square. Given the nutrient database?s assumption that rice is salted may be inappropriate for some ethnic groups, we conducted a secondary analysis altering this assumption. Results Pizza, soup, and chicken were top sources of sodium across racial and ethnic groups. For Asian Americans, 4 top sources were unique (e.g., soy-based condiments). Black adults reported the highest rates of reducing sodium (67% vs. 44% among White adults) and receiving physician sodium reduction advice (35% vs.18% among Asian Americans). Asian Americans were the most likely to frequently use salt during food preparation (66% vs. Other Race adults 32%) but reported not using salt at the table (43% vs. 23% among Other Race adults). Assuming rice is unsalted reduces Asian American sodium intake estimates by ~325 mg/day. Conclusions While product reformulation targets and front-of-pack nutrition labeling may help reduce sodium intake across groups, to equitably address sodium intake, culturally appropriate advice on sources of sodium and salt usage may be needed, particularly for Asian Americans.

2.
Circulation ; 2024 Sep 16.
Article in English | MEDLINE | ID: mdl-39279648

ABSTRACT

To achieve cardiovascular health (CVH) equity in the United States, an understanding of the social and structural factors that contribute to differences and disparities in health is necessary. The Asian American population is the fastest-growing racial group in the United States but remains persistently underrepresented in health research. There is heterogeneity in how individual Asian American ethnic groups experience CVH and cardiovascular disease outcomes, with certain ethnic groups experiencing a higher burden of adverse social conditions, disproportionately high burden of suboptimal CVH, or excess adverse cardiovascular disease outcomes. In this scientific statement, upstream structural and social determinants that influence CVH in the Asian American population are highlighted, with particular emphasis on the role of social determinants of health across disaggregated Asian American ethnic groups. Key social determinants that operate in Asian American communities include socioeconomic position, immigration and nativity, social and physical environments, food and nutrition access, and health system-level factors. The role of underlying structural factors such as health, social, and economic policies and structural racism is also discussed in the context of CVH in Asian Americans. To improve individual-, community-, and population-level CVH and to reduce CVH disparities in Asian American ethnic subgroups, multilevel interventions that address adverse structural and social determinants are critical to achieve CVH equity for the Asian American population. Critical research gaps for the Asian American population are given, along with recommendations for strategic approaches to investigate social determinants of health and intervene to reduce health disparities in these communities.

3.
J Adv Nurs ; 2024 Aug 15.
Article in English | MEDLINE | ID: mdl-39148277

ABSTRACT

AIMS: 1. To explore the perceptions of physicians, registered nurses (RN) and allied health professionals (AHP) towards the role of ward-based advanced practice nurse (APN). 2. To examine healthcare professionals' perception of APN role expansion in inpatient care. DESIGN: Cross-sectional study. METHODS: A 43-item survey comprising of five domains was conducted on healthcare professionals' perceptions towards ward-based APNs in five medical wards of a tertiary hospital from November 2022 to February 2023. The participants were recruited using convenience sampling via email and cross-platform messaging service. RESULTS: A total of 181 completed respondents including 26 physicians, 102 nurses and 45 AHPs. Statistical analysis was performed with IBM SPSS Version 28.0. APNs were perceived to be spending a great extent of time across all five domains, namely, 'direct comprehensive care', 'support of systems', 'research', 'education' and 'publication and professional leadership'. Significant differences were noted in perceptions based on prior experience with APNs and between different healthcare professions. The majority recognized APNs' positive impact on patient safety, efficiency and patient-centeredness. CONCLUSION: This study offers valuable insights into ward-based APNs' practice patterns, roles and impact, revealing a positive shift in their acceptance and expanding roles within inpatient general wards. It also highlights the valuable roles and impact of ward-based APNs in direct patient care, system support, research, education and leadership, despite ongoing challenges in role clarity, particularly in treatment planning and ward rounds. IMPLICATIONS FOR THE PROFESSION: APNs are highly regarded as competent and a consistent personnel in the wards. However, there are divided views on clinical activities that APNs undertake. IMPACT (ADDRESSING): What problem did the study address? ○ Role ambiguity for ward-based APNs. ○ Healthcare professionals' readiness and acceptance of APNs. What were the main findings? ○ APNs are perceived to have a strong involvement in direct patient care, support of system, research, education and leadership. ○ APNs are recognized for their significant impact on patient safety, efficiency and patient-centredness, but there were varied perceptions on the extent of time they spend in different practice domains. ○ The critical roles of APNs participating in daily ward rounds and initiating discharge plans were highlighted, emphasizing their importance in timeliness and continuity of care. Where and on whom will the research have an impact? ○ It will affect healthcare professionals including physicians, nurses, allied health professionals and healthcare administrators by providing insights into the roles and contributions of ward-based APNs. ○ The findings will guide policymakers and nurse leaders in making informed decisions about the implementation and development of APN roles, ultimately improving patient care and outcomes. PATIENT OR PUBLIC CONTRIBUTION: No Patient or Public Contribution.

4.
PLoS One ; 19(8): e0309219, 2024.
Article in English | MEDLINE | ID: mdl-39178198

ABSTRACT

INTRODUCTION: Asian American populations face unique structural/social inequities contributing to poor diet quality and health disparities. The current body of literature on diet and food consumption of Asian Americans mainly focuses on the health of Filipino and East Asian Americans, or those with pre-existing non-communicable diseases. OBJECTIVE: The aim of this review is to comprehensively compile all available literature on nutrition and dietary consumption among the general population in Asian American ethnic subgroups, highlight any disparities and research gaps, and suggest further research action. METHODS: With guidance from a research librarian, we enumerated and searched key terms related to diet, food, nutrition, and Asian Americans in PubMed/MEDLINE, Food Science Collection (CABI Digital Library), CINAHL (EBSCO), Scopus, Food Science and Technology Abstracts (Web of Science), and Biological & Agricultural Index Plus (EBSCO) in accordance with PRISMA-S guidelines. An article will be included if it was published in the English language; is a peer-reviewed research manuscript or published in grey literature from 2000 to present; and describes what food groups and macronutrients healthy non-institutionalized Asian Americans in the U.S. are eating. An article will be excluded if it contains only research conducted outside of the U.S.; combines Asian Americans with Native Hawaiian and Pacific Islanders; and had no explicit focus on Asian American nutrition and dietary consumption. Two or more reviewers will participate in the study screening and selection process. We will record article characteristics, diet outcomes, and recommendations from final included articles using a data extraction table and prepare a summary narrative with key findings. EXPECTED OUTPUTS: Results will be disseminated through a peer-reviewed manuscript. The findings from this review can have broad implications for designing and implementing nutrition-focused initiatives that will appropriately reflect and address the needs as well as norms and values of each distinct Asian American ethnic subgroup.


Subject(s)
Asian , Diet , Humans , Asian/statistics & numerical data , United States , Nutritional Status
6.
Int J Behav Med ; 2024 Jun 12.
Article in English | MEDLINE | ID: mdl-38867005

ABSTRACT

BACKGROUND: Asian American (AA) young adults face a looming diet-related non-communicable disease crisis. Interactions with family members are pivotal in the lives of AA young adults and form the basis of family-based interventions; however, little is known on the role of these interactions in shared family food behaviors. Through an analysis of 2021 nationwide survey data of 18-35-year-old AAs, this study examines how the quality of family member interactions associates with changes in shared food purchasing, preparation, and consumption. METHOD: Interaction quality was assessed through 41 emotions experienced while interacting with family, and was categorized as positive (e.g., "I look forward to it"), negative (e.g., "I feel annoyed"), and appreciation-related (e.g., "I feel respected") interactions. Participants were also asked how frequently they ate meals, ate out, grocery shopped, and cooked with their family. RESULTS: Among the 535 AAs surveyed (47.6% East Asian, 21.4% South Asian, 22.6% Southeast Asian), 842 unique family interactions were analyzed; 43.5% of interactions were with mothers, followed by siblings (27.1%), and fathers (18.5%). Participants most frequently ate meals with their family (at least daily for 33.5% of participants), followed by cooking (at least daily for 11.3%). In adjusted analyses, an increase in shared food behaviors was particularly associated with positive interactions, although most strongly with cooking together and least strongly with eating meals together; significant differences between ethnic subgroups were not observed. CONCLUSION: Findings revealed the importance of family interaction quality when leveraging family relationships to develop more tailored, impactful AA young adult dietary interventions.

7.
Health Promot Pract ; : 15248399241234058, 2024 Feb 28.
Article in English | MEDLINE | ID: mdl-38415651

ABSTRACT

Anti-Asian and anti-immigrant sentiment has surged in the country in the last 3 years. Food insecurity is also on the rise; in our local needs assessment of n = 1,270 Asian American adults in New York City, accessing food was cited as the number 1 priority among those who needed help. Finally, racial discrimination and food access are related to fear of being attacked-driving feelings of safety and therefore willingness to travel for food. To combat these narratives and leveraging pivots by our community partners, we implemented a community-supported agriculture pilot program (n = 38) to assess whether culturally appropriate food access can improve diet and foster cross-cultural learning among immigrant families in Brooklyn, NY. Over a 20-week period from June to October 2022, participants received Chinese-specific produce and nutrition education. Participants reported eating more and a greater variety of vegetables and had higher vegetable intake measured via skin carotenoid scores. This pilot may inform the adaptation of nutrition interventions to reduce inequities in chronic diseases in immigrant communities.

9.
Article in English | MEDLINE | ID: mdl-38411798

ABSTRACT

Patient race/ethnicity data collection in most U.S. health systems abide by federal standards, determined by the federal Office of Management and Budget. Yet, decades of research show that reliance on these categories alone limits understanding of within-group health disparities, systematically erasing key groups from health data. Because granular race/ethnicity data is complex and patients may be hesitant to disclose this personal information, it is important for health leaders to consider community perspectives when making decisions about race/ethnicity data procedures. As such, this study uses community focus groups to understand: (1) how individuals representing different racial/ethnic identities perceive the collection of race/ethnicity in healthcare settings; (2) differences in opinions between disaggregated race/ethnicity data collection instruments and those using federal standards; and (3) recommended practices for collecting race/ethnicity from patients. Participants self-selected into 13 focus groups and one key informant interview based on the race/ethnicity with which they most closely identified. Audio recordings from these groups were transcribed and evaluated using thematic content analysis. Among the 83 total participants in this study, there was a strong preference for more flexible and specific options for self-identifying race/ethnicity in healthcare settings. Participants also felt comfortable disclosing granular race/ethnicity to health providers but expressed discomfort with disclosing this information for other purposes. Recommendations for healthcare leaders include ensuring patients receive detailed communication about race/ethnicity data use and purpose, allowing multiple category selection, keeping the list of disaggregated response options short so as to not overwhelm patients, and providing a free text option to ensure inclusivity.

10.
Drug Alcohol Depend ; 256: 111088, 2024 Mar 01.
Article in English | MEDLINE | ID: mdl-38262197

ABSTRACT

BACKGROUND: The increasing relevance of substance use disorder (SUD) within the Asian American, Native Hawaiian, and Pacific Islander (AA&NH/PI) communities, particularly amidst rising anti-Asian hate incidents and the disproportionate health and economic challenges faced by the NH/PI community during the COVID-19 pandemic, underscores the urgency of understanding substance use patterns, treatment disparities, and outcomes. METHODS: Following PRISMA guidelines, 37 out of 231 studies met the search criteria. Study characteristics, study datasets, substance use rates, SUD rates, treatment disparities, treatment quality, completion rates, and analyses disaggregated by the most specific AA&NH/PI ethnic group reported were examined. RESULTS: Despite increased treatment admissions over the past two decades, AA&NH/PI remain underrepresented in treatment facilities and underutilize SUD care services. Treatment quality and completion rates are also lower among AA&NH/PI. Analyses that did not disaggregate AA and NHPI as distinct groups from each other or that presented aggregate data only within AA or NHPI as a whole were common, but available disaggregated analyses reveal variations in substance use and treatment disparities among ethnic groups. There is also a lack of research in exploring within-group disparities, including specific case of older adults and substance use. CONCLUSION: To address disparities in access to substance use treatment and improve outcomes for AA&NH/PI populations, targeted interventions and strategic data collection methods that capture diverse ethnic groups and languages are crucial. Acknowledging data bias and expanding data collection to encompass multiple languages are essential for fostering a more inclusive approach to addressing SUD among AA&NH/PI populations.


Subject(s)
Asian American Native Hawaiian and Pacific Islander , Healthcare Disparities , Substance-Related Disorders , Humans , Healthcare Disparities/ethnology , Substance-Related Disorders/epidemiology , Substance-Related Disorders/ethnology , Substance-Related Disorders/therapy , Asian American Native Hawaiian and Pacific Islander/statistics & numerical data
11.
Nutr J ; 23(1): 4, 2024 Jan 03.
Article in English | MEDLINE | ID: mdl-38172928

ABSTRACT

BACKGROUND: Previous studies have demonstrated the association between food security and cardiometabolic diseases (CMDs), yet none have investigated trends in prevalence of CMDs by food security status in the United States (US). METHODS: Serial cross-sectional analysis of the US nationally representative data from National Health and Nutrition Examination Survey (1999-2018) was conducted among adults aged 20 years or older. Food security status was defined by the US Household Food Security Survey Module (full, marginal, low, and very low food security). We estimated the age-adjusted prevalence of CMDs including obesity, hypertension, diabetes, and coronary heart disease by food security status. Racial and ethnic disparities in age-adjusted prevalence of CMDs by food security status were also assessed. RESULTS: A total of 49,738 participants were included in this analysis (weighted mean age 47.3 years; 51.3% women). From 1999 to 2018, the age-adjusted prevalence of CMDs was lower in full food secure group as compared with other groups. For example, trends in hypertension decreased from 49.7% (47.5-51.8%) to 45.9% (43.8-48.0%) (P-trend = 0.002) among the full and from 54.2% (49.9-58.5%) to 49.7% (46.8-52.6%) (P-trend = 0.02) among the marginal but remained stable among the low at 49.7% (47.9-51.6%) and among the very low at 51.1% (48.9-53.3%) (P-interaction = 0.02). Prevalence of diabetes increased from 8.85% (8.15-9.60%) to 12.2% (11.1-13.5%) among the full (P-trend < 0.001), from 16.5% (13.2-20.4%) to 20.9% (18.6-23.5%) (P-trend = 0.045) among the marginal and from 14.6% (11.1-19.0%) to 20.9% (18.8-23.3%) (P-trend = 0.001) among the low but remained stable at 18.8% (17.0-20.9) among the very low (P-trend = 0.35) (P-interaction = 0.03). Racial and ethnic differences in prevalence of CMD by food security status were observed. For example, among individuals with full food secure status, the prevalence of diabetes was 9.08% (95% CI, 8.60-9.59%) for non-Hispanic whites, 17.3% (95% CI, 16.4-18.2%) for non-Hispanic blacks, 16.1% (95% CI, 15.0-17.4%) for Hispanics and 14.9% (95% CI, 13.3-16.7%) for others. CONCLUSIONS AND RELEVANCE: Prevalence of CMDs was greatest among those experiencing food insecurity, and food insecurity disproportionately affected racial/ethnic minorities. Disparities in CMD prevalence by food security status persisted or worsened, especially among racial/ethnic minorities.


Subject(s)
Diabetes Mellitus , Hypertension , Adult , Humans , Female , United States/epidemiology , Middle Aged , Male , Nutrition Surveys , Prevalence , Cross-Sectional Studies , Hypertension/epidemiology , Diabetes Mellitus/epidemiology , Food Security
12.
J Racial Ethn Health Disparities ; 11(1): 300-312, 2024 Feb.
Article in English | MEDLINE | ID: mdl-36692660

ABSTRACT

BACKGROUND: During the COVID-19 pandemic, Asians/Asian Americans have experienced co-occurring threats of anti-Asian racism, economic challenges, and negative mental and physical health symptoms. OBJECTIVES: We examined the co-occurrence of COVID-19-related anti-Asian discrimination and collective racism, economic stressors, and mental and physical health challenges for Asians/Asian Americans during the COVID-19 pandemic. We also examined Asian/Asian American subgroups associated with these threats. METHODS: Nationally representative data from the 2021 Asian American and Native Hawaiian/Pacific Islander COVID-19 Needs Assessment Project (unweighted N = 3,508) were used to conduct a latent profile analysis to identify unique typologies of the co-occurrence of these threats. We also conducted chi-square analyses to investigate subgroup differences by latent profile. RESULTS: We identified five distinct latent profiles: multi-threat impact, low impact, collective racism, health challenges, and economic/health challenges. Forty percent of Asians/Asian Americans were in the multi-threat impact profile, indicating high levels across COVID-19-related threats. Subgroup analyses revealed significant differences in profile membership. East Asians, US-born Asians/Asian Americans, and those aged 25-44 seemed to be particularly affected by the proposed syndemic; results also differed by income. CONCLUSION: Asians/Asian Americans have experienced co-occurring and interrelated threats during COVID-19 that suggest the presence of a syndemic. Results from our study point to vulnerable Asian/Asian American subgroups and the need for targeted public health efforts to address racism, health challenges, and economic challenges in the context of COVID-19.


Subject(s)
COVID-19 , Racism , Humans , COVID-19/epidemiology , Asian , Syndemic , Pandemics
13.
Res Aging ; 46(3-4): 228-240, 2024.
Article in English | MEDLINE | ID: mdl-38128550

ABSTRACT

Using data from the National Health and Nutrition Examination Survey (2001-2018; N = 19,602), this study examined whether ultra-processed food (UPF) consumption is associated with cardiometabolic health (obesity, hypertension, high cholesterol, and diabetes), among White, Black, Hispanic, and Asian Americans (AA) US adults 50 or older. Diet was assessed using 24 hour dietary recall. NOVA dietary classification system was used to calculate the percentage of caloric intake derived from UPFs. Cardiometabolic information was assessed through physical examination, blood tests, and self-reported medication information. A median of 54% (IQR: 40%, 68%) of caloric intake was attributed to UPFs and was lowest for AAs (34%, IQR: 20%, 49%) and highest for White adults (56%; IQR: 42, 69%). In multivariable adjusted models, UPF consumption was associated with greater odds of obesity, high cholesterol, and diabetes. UPF consumption is associated with poor cardiometabolic health among all US older adults. For AAs, UPFs may be particularly obesogenic.


Subject(s)
Cardiovascular Diseases , Diabetes Mellitus , Food, Processed , Obesity , Aged , Humans , Middle Aged , Asian , Cardiovascular Diseases/epidemiology , Cholesterol , Diabetes Mellitus/epidemiology , Ethnicity , Fast Foods , Nutrition Surveys , Obesity/epidemiology , United States
14.
Annu Rev Public Health ; 45(1): 169-193, 2024 May.
Article in English | MEDLINE | ID: mdl-38134402

ABSTRACT

The monolithic misrepresentation of Asian American (AsAm) populations has maintained assumptions that AsAm people are not burdened by health disparities and social and economic inequities. However, the story is more nuanced. We critically review AsAm health research to present knowledge of AsAm health profiles from the past two decades and present findings and opportunities across three topical domains: (a) general descriptive knowledge, (b) factors affecting health care uptake, and (c) effective interventions. Much of the literature emphasized underutilization of health care services; low knowledge and awareness among AsAms about health-related risk factors, prevention, diagnosis, and treatment; inadequate efforts by health systems to improve language access, provider-patient communication, and trust; and the critical roles of community- and faith-based organizations and leaders in health promotion initiatives. Future opportunities for AsAm health research will require adoption of and significant investment in community-engaged research infrastructure to increase representation, funding, and research innovation for AsAm communities.


Subject(s)
Asian , Health Equity , Humans , Asian/statistics & numerical data , United States , Health Services Accessibility , Health Status Disparities , Healthcare Disparities/ethnology , Health Knowledge, Attitudes, Practice , Health Promotion/organization & administration
15.
Prev Med Rep ; 36: 102480, 2023 Dec.
Article in English | MEDLINE | ID: mdl-37920594

ABSTRACT

The objective of this study was to inform the development of a subsidized, culturally adapted Community-Supported Agriculture (CSA) program for the Chinese American (CA) community in Brooklyn, New York (NY), USA. We conducted interviews with CA adults to understand their eating and shopping behaviors, interests in CSAs, and recommendations for educational content to inform the development of a subsidized and culturally adapted CSA. We then conducted thematic analysis of those interviews and identified major themes. CA adult participants shared interest in a CSA primarily to support their own health, interact socially with farmers and other participants, and gain access to fresh, culturally appropriate produce. Major concerns for participation, especially among older adults, included language barriers, transportation, and mobility. The unique needs and motivations of CAs should be centered in the development of alternative food access interventions for this population. CA adult participants living in Brooklyn, NY may be interested in a subsidized culturally adapted CSA that includes health information about the produce and provides in-language support. Engaging communities in the development of a health program may be important to ensure accessibility and acceptability for CA populations.

17.
Arch Public Health ; 81(1): 145, 2023 Aug 11.
Article in English | MEDLINE | ID: mdl-37568188

ABSTRACT

OBJECTIVE: To assess the criterion validity of a dietary screener questionnaire adapted for Asian Americans (ADSQ) compared to Automated Self-Administered 24-Hour Dietary Assessment Tool (ASA-24) food diary data amongst Chinese American Adults (CHAs). The ADSQ incorporated example ethnic foods from six Asian American groups. Lessons learned with respect to translating the ADSQ from English into Simplified Chinese were also documented. DESIGN: Agreement between a two-day food diary (one weekend day and one weekday) and the ADSQ was assessed for vegetable, fruit, dairy, added sugar, fiber, calcium, and whole grain intake using paired t-tests to compare means and Spearman correlations to assess agreement between intake of food components. SETTING: Data were collected online and via phone interviews. PARTICIPANTS: Thirty-three CHAs aged 19-62 years (63.6% female). RESULTS: Mean differences were small for fruit, dairy, fiber, calcium, and whole grain intake, but were significantly different for vegetables and added sugar intake. Spearman correlations were < 0.5 and non-significant (p > 0.05) for all components. Both the ASA-24 and the ADSQ identified the same categories where CHAs intake is misaligned with dietary recommendations: whole grains, total fruit, and dairy. Difficulties were encountered in translating 13 out of 26 questions. CONCLUSIONS: The ADSQ may be a useful tool to identify intervention targets for improving dietary quality, but caution is warranted when interpreting vegetable and added sugar estimates. Differences in the English and Chinese languages underscore the need to take into account both literal translations and semantics in translating the ADSQ into other languages.

18.
Cancer Causes Control ; 34(12): 1043-1058, 2023 Dec.
Article in English | MEDLINE | ID: mdl-37481755

ABSTRACT

PURPOSE: To apply principles of group model building (GMB), a participatory systems science approach, to identify barriers and opportunities for collective impact around nutrition programming to reduce cancer risk for immigrant communities in an urban environment. METHODS: We convened four in-person workshops applying GMB with nine community partners to generate causal loop diagrams (CLDs)-a visual representation of hypothesized causal relationships between variables and feedback structures within a system. GMB workshops prompted participants to collaboratively identify programmatic goals and challenges related to (1) community gardening, (2) nutrition education, (3) food assistance programs, and (4) community-supported agriculture. Participants then attended a plenary session to integrate findings from all workshops and identify cross-cutting ideas for collective action. RESULTS: Several multilevel barriers to nutrition programming emerged: (1) food policies center the diets and practices of White Americans and inhibit culturally tailored food guidelines and funding for culturally appropriate nutrition education; (2) the lack of culturally tailored nutrition education in communities is a missed opportunity for fostering pride in immigrant food culture and sustainment of traditional food practices; and (3) the limited availability of traditional ethnic produce in food assistance programs serving historically marginalized immigrant communities increases food waste and worsens food insecurity. CONCLUSION: Emergent themes coalesced around the need to embed cultural tailoring into all levels of the food system, while also considering other characteristics of communities being reached (e.g., language needs). These efforts require coordinated actions related to food policy and advocacy, to better institutionalize these practices within the nutrition space.


Subject(s)
Food , Refuse Disposal , Humans , Nutritional Status , Diet , Nutrition Policy
19.
Microbiome ; 11(1): 164, 2023 07 27.
Article in English | MEDLINE | ID: mdl-37496080

ABSTRACT

BACKGROUND: Emerging evidence suggests the potential mediating role of microbiome in health disparities. However, no analytic framework can be directly used to analyze microbiome as a mediator between health disparity and clinical outcome, due to the non-manipulable nature of the exposure and the unique structure of microbiome data, including high dimensionality, sparsity, and compositionality. METHODS: Considering the modifiable and quantitative features of the microbiome, we propose a microbial causal mediation model framework, SparseMCMM_HD, to uncover the mediating role of microbiome in health disparities, by depicting a plausible path from a non-manipulable exposure (e.g., ethnicity or region) to the outcome through the microbiome. The proposed SparseMCMM_HD rigorously defines and quantifies the manipulable disparity measure that would be eliminated by equalizing microbiome profiles between comparison and reference groups and innovatively and successfully extends the existing microbial mediation methods, which are originally proposed under potential outcome or counterfactual outcome study design, to address health disparities. RESULTS: Through three body mass index (BMI) studies selected from the curatedMetagenomicData 3.4.2 package and the American gut project: China vs. USA, China vs. UK, and Asian or Pacific Islander (API) vs. Caucasian, we exhibit the utility of the proposed SparseMCMM_HD framework for investigating the microbiome's contributions in health disparities. Specifically, BMI exhibits disparities and microbial community diversities are significantly distinctive between reference and comparison groups in all three applications. By employing SparseMCMM_HD, we illustrate that microbiome plays a crucial role in explaining the disparities in BMI between ethnicities or regions. 20.63%, 33.09%, and 25.71% of the overall disparity in BMI in China-USA, China-UK, and API-Caucasian comparisons, respectively, would be eliminated if the between-group microbiome profiles were equalized; and 15, 18, and 16 species are identified to play the mediating role respectively. CONCLUSIONS: The proposed SparseMCMM_HD is an effective and validated tool to elucidate the mediating role of microbiome in health disparity. Three BMI applications shed light on the utility of microbiome in reducing BMI disparity by manipulating microbial profiles. Video Abstract.


Subject(s)
Microbiota , Humans , Body Mass Index , Microbiota/genetics , Models, Theoretical , Ethnicity , China
20.
BMJ Nutr Prev Health ; 6(1): 76-82, 2023 Jun.
Article in English | MEDLINE | ID: mdl-37484538

ABSTRACT

Objective: The objective of this study was to evaluate the relative validity of the nine-item Diet Risk Score (DRS) among Chinese American adults using Healthy Eating Index (HEI)-2015 scores. We provide insights into the application of the Automated Self-Administered 24-Hour Dietary Assessment Tool (ASA24) for this population, and report on lessons learned from carrying out participant recruitment during the COVID-19 pandemic. Methods: Thirty-three Chinese American adults (mean age=40; 36% male) were recruited from the community and through ResearchMatch. Participants completed the DRS and two 24-hour food records, which were entered into the ASA 24-Hour Dietary Assessment Tool (ASA24) by community health workers (CHWs). HEI-2015 scores were calculated from each food record and an average score was obtained for each participant. One-way analysis of variance and Spearman correlations were used to compare total and component scores between the DRS and HEI-2015. Results: Mean HEI-2015 score was 56.7/100 (SD 10.6) and mean DRS score was 11.8/27 (SD 4.7), with higher scores reflecting better and worse diets, respectively. HEI-2015 and DRS scores were inversely correlated (r=-0.43, p<0.05). The strongest correlations were between HEI-2015 Total Vegetables and DRS Vegetables (r=-0.5, p<0.01), HEI-2015 Total Vegetables and Green Vegetables (r=-0.43, p=0.01) and HEI-2015 Seafood/Plant Protein and DRS Fish (r=-0.47, p<0.01). The inability to advertise and recruit for the study in person at community centres due to pandemic restrictions impeded the recruitment of less-acculturated individuals. A lack of cultural food items in the ASA24 database made it difficult to record dietary intake as reported by participants. Conclusion: The DRS can be a valuable tool for physicians to identify and reach Chinese Americans at risk of cardiometabolic disease.

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