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Open Access Publications from the University of California

Scholarly Works (15 results)

  • Article
  • Peer Reviewed
UC San Francisco Previously Published Works (2021)
    Cover page: The Hidden Colors of Coronavirus: the Burden of Attributable COVID-19 DeathsCreative Commons 'BY-NC-ND' version 4.0 license
    • Article
    • Peer Reviewed
    UC San Francisco Previously Published Works (2023)

    Background and aims

    Primary care providers need strategies to identify NAFLD patients and select for specialty referral, but proposed algorithms have only been studied in established NAFLD patients.

    Methods

    We implemented an algorithm for all adults with diabetes mellitus in a large primary care practice and excluded hepatitis B and C or alcohol use. Applying annual Fibrosis-4 Index and NAFLD Fibrosis Score for 5 years, we categorized patients as low-risk, indeterminate-risk, or high-risk for advanced fibrosis. We targeted all high-risk and messaged each primary care provider, recommending hepatology linkage. We collected final diagnosis and fibrosis (F0-4) outcomes. Using multivariable logistic regression, we assessed risk factors for advanced fibrosis stage (F3-4).

    Results

    Of 3028 patients, 1018 were low-risk, 577 indeterminate-risk, and 611 high-risk. There were 264 target patients; their 89 primary care providers received a message per patient suggesting hepatology referral. The majority (n=149) were referred; at triage, 118 were deemed likely NAFLD. Of these, 90 completed visits, 78/90 were diagnosed as NAFLD, and 69/78 underwent fibrosis staging, with F3 to 4 in 25/69. In multivariable analysis, hemoglobin A1c ≥8% (OR=7.02, 95% CI: 1.29-38.18) and Fibrosis-4 Index (OR=1.79, 95% CI: 1.07-2.99) were associated with increased risk of F3 to 4.

    Conclusions

    This is the first prospective study testing a case-finding strategy in primary care and almost 1/3 of diabetes mellitus were high-risk for advanced fibrosis. When prompted, 73% of primary care providers placed referrals and 76% of patients completed visits, revealing 86% NAFLD and 36% F3 to 4. This study demonstrates the readiness for such a strategy in primary care; integrating hemoglobin A1c into this algorithm may further improve the performance of Fibrosis-4 Index in this setting.
      Cover page: Prospective study of a case-finding algorithm to detect NAFLD with advanced fibrosis in primary care patients.
      • Article
      • Peer Reviewed
      UC San Francisco Previously Published Works (2023)

      Background

      Primary care providers (PCPs) face increasing numbers of patients at risk for NAFLD and are responsible for the detection of NAFLD and the decision on referral to specialists. We conducted a PCP needs assessment to ascertain the barriers and desired supports for NAFLD in primary care.

      Methods

      We designed a cross-sectional study of PCPs at a large diverse health system and surveyed faculty, residents, and nurse practitioners. Questions assessed NAFLD knowledge, approach to diagnosis and fibrosis testing including use of FIB-4, and attitudes toward support tools.

      Results

      The survey was sent to 115 PCPs with an 80% (n = 92) response rate. Respondents were 52% faculty and 48% residents. Over 40% were unsure of which diagnostic tests to order and which data constituted a diagnosis. PCPs were aware of the importance of fibrosis, yet few knew the components of FIB-4, few used FIB-4 in practice, and yet the most common reason for referral was to obtain fibrosis staging. The majority showed high levels of interest toward possible tools to improve NAFLD management, and only 5% perceived lack of time to be a barrier.

      Discussion

      Our survey revealed PCPs need and want strategic approaches to NAFLD. We found PCPs lack confidence in diagnosing NAFLD and are inconsistent in management strategies. PCPs had high awareness of the importance of fibrosis, but not of the FIB-4. It was encouraging that PCPs reported that time was not a major barrier and had positive attitudes toward potential practice support tools, indicating that practice guidelines designed for primary care should be created.
        Cover page: Primary Care Providers and Nonalcoholic Fatty Liver Disease: A Needs Assessment Survey
        • Article
        • Peer Reviewed
        UC San Francisco Previously Published Works (2022)

        Background

        Racial/ethnic minorities bear a disproportionate burden of hepatitis B virus (HBV) infection and disease. Disparities in HBV screening contribute to worse outcomes for communities of color. We examined the impact of race/ethnicity, language preference, and having a usual place of care on HBV screening in a multilingual, urban cohort.

        Methods

        We used questions from the Health Information National Trends Survey and added validated questions about healthcare access and health literacy. We administered this survey in English, Spanish, and Chinese to a selected convenience sample of San Francisco city/county residents in 2017, with pre-specified targets for populations with known cancer disparities: 25% Spanish-speaking, 25% Chinese-speaking, and 25% Black Americans. Using weighted multivariable logistic regression analyses, we assessed how race/ethnicity, language preference, and having a usual place of care impacts self-report of HBV screening.

        Results

        Overall, 1027 participants completed the survey (50% of surveys administered in English, 25% in Spanish, and 25% in Chinese). Only 50% of participants reported HBV screening. In multivariable analysis, Black (OR = 0.20, 95% CI 0.08-0.49), Latinx (OR = 0.33, 95% CI 0.13-0.85), Asian (OR = 0.31, 95% CI 0.10, 0.94), and 'Other' race/ethnicity (OR = 0.17, 95% CI 0.05-0.53) respondents had lower odds of HBV screening compared to non-Hispanic White respondents. Participants who had insurance had increased odds of HBV screening (OR = 2.70, 95% CI 1.48-4.93).

        Conclusions

        HBV screening disparities persist for Black Americans, Asian Americans, Latinx, and the uninsured. Future studies should explore reasons why current strategies have not been implemented or are not successful, particularly in addressing racial/ethnic and insurance disparities.
          Cover page: Exploring factors associated with hepatitis B screening in a multilingual and diverse population
          • Article
          • Peer Reviewed
          UC San Francisco Previously Published Works (2022)

          Objective

          We examined the impact of language preference and health literacy on health information-seeking experiences in a multilingual, low-income cohort.

          Methods

          We administered a modified Health Information National Trends Survey in English, Spanish, and Chinese to a sample of San Francisco city/county residents. Using multivariable logistic regression analyses, we assessed how language and health literacy impact health information-seeking experiences (confidence, effort, frustration, quality concerns, and difficulty understanding information), adjusting for age, gender, race/ethnicity, education, usual place of care, health status, information-seeking behaviors, and smartphone ownership.

          Results

          Of 1000 participants (487 English-speaking, 256 Spanish-speaking, 257 Chinese-speaking), 820 (82%) reported at least one negative health information-seeking experience. Chinese-language was associated with frustration (aOR = 2.56; 1.12-5.86). Difficulty understanding information was more likely in Spanish-language respondents (aOR = 3.58; 1.25-10.24). Participants with limited health literacy reported more effort (aOR = 1.97; 1.22-3.17), frustration (aOR = 2.09; 1.28-3.43), concern about quality (aOR = 2.72; 1.60-4.61), and difficulty understanding information (aOR = 2.53; 1.58-4.05). Language and literacy impacted confidence only in the interaction term between Chinese-speakers and health literacy.

          Conclusion

          We found that negative health information-seeking experiences were common in non-English speaking populations those with limited health literacy.

          Practice implications

          Health communication efforts should consider both language preference and health literacy to ensure accessibility for all patients.
            Cover page: Impact of language preference and health literacy on health information-seeking experiences among a low-income, multilingual cohort
            • Article
            • Peer Reviewed
            UC San Francisco Previously Published Works (2022)
            Fatty liver disease (FLD) is a leading cause of chronic liver disease (CLD) globally, and vulnerable populations are disproportionately affected. Prior studies have suggested racial/ethnic differences in FLD prevalence and severity; however, these studies often excluded Asian Americans. This study aims to evaluate racial/ethnic differences in the prevalence of, and predictors associated with steatohepatitis, advanced fibrosis, and fibrosis progression over time within a diverse population. Using descriptive analyses and multivariable modeling, we performed a longitudinal evaluation of 648 patients with histologic evidence of FLD (steatosis or steatohepatitis) from August 2009 to February 2020 within San Francisco's safety-net health care system. Overall demographics were median age of 53 years, 54% male, and 38% Asian (40% Hispanic, 14% White). On histology, 61% had steatohepatitis and 30% had advanced fibrosis (≥F3). The comparison between steatosis and steatohepatitis groups showed differences in sex, race/ethnicity, metabolic risk factors, and co-existing CLD (predominantly viral hepatitis); patients with steatosis were more likely to be Asian (50%), and those with steatohepatitis were more likely to be Hispanic (51%). On multivariable modeling, while Asian race (vs. non-Asian) was not associated with steatohepatitis or advanced fibrosis when models included all relevant clinical predictors, Asian race was associated with higher relative risk of fibrosis progression as defined by change in Fibrosis-4 category over time (relative risk ratio = 1.9; p = 0.047). Conclusion: In this vulnerable population with a large proportion of Asian Americans, Asian race was associated with progression of fibrosis. Given the relative paucity of data in this high-risk group, future studies should confirm these findings.
              Cover page: Racial/ethnic differences in fibrosis prevalence and progression in biopsy‐proven steatosis: A focus on the Asian American population
              • Article
              • Peer Reviewed
              UC San Francisco Previously Published Works (2017)
              Vietnamese Americans have high rates of hepatitis B virus (HBV) infection but low rates of knowledge and screening. A population-based survey conducted in 2011 of Vietnamese Americans in two geographic areas (n = 1666) was analyzed. The outcome variables were having heard of HBV and a score summarizing knowledge of HBV transmission. Most respondents (86.0%) had heard of HBV. Correct knowledge of transmission ranged from 59.5% for sex, 68.1% for sharing toothbrushes, 78.6% for during birth, and 85.0% for sharing needles. In multivariable analyses, factors associated with having heard of HBV and higher knowledge included Northern California residence, longer U.S. residence, higher education, family history of HBV, and discussing HBV with family/friends. Higher income was associated with having heard of HBV. English fluency and being U.S.-born were associated with higher knowledge. Interventions to increase knowledge of HBV transmission are needed to decrease this health disparity among Vietnamese Americans.
                Cover page: Factors Associated with Hepatitis B Knowledge Among Vietnamese Americans: A Population-Based Survey
                • Article
                • Peer Reviewed
                UC San Francisco Previously Published Works (2021)
                The coronavirus disease 2019 (COVID-19) pandemic has underscored the structural inequities facing communities of color and its consequences in lives lost. However, little is known about the COVID-related disparities facing Asian Americans amidst the heightened racism and violence against this community. We analyze the mortality toll of COVID-19 on Asian Americans using multiple measures. In 2020, one in seven Asian American deaths was attributable to COVID-19. We find that while Asian Americans make up a small proportion of COVID-19 deaths in the USA, they experience significantly higher excess all-cause mortality (3.1 times higher), case fatality rate (as high as 53% higher), and percentage of deaths attributed to COVID-19 (2.1 times higher) compared to non-Hispanic Whites. Mounting evidence suggest that disproportionately low testing rates, greater disease severity at care presentation, socioeconomic factors, and racial discrimination contribute to the observed disparities. Improving data reporting and uniformly confronting racism are key components to addressing health inequities facing communities of color.
                  Cover page: Death Toll of COVID-19 on Asian Americans: Disparities Revealed
                  • Article
                  • Peer Reviewed
                  UC San Francisco Previously Published Works (2023)

                  Studies conflict about whether language discordance increases rates of hospital readmissions or emergency department (ED) revisits for adult and paediatric patients. The literature was systematically reviewed to investigate the association between language discordance and hospital readmission and ED revisit rates.

                  Searches were performed in PubMed, Embase and Google Scholar on 21 January 2021, and updated on 27 October 2022. No date or language limits were used.

                  Articles that (1) were peer-reviewed publications; (2) contained data about patient or parental language skills and (3) included either unplanned hospital readmission or ED revisit as one of the outcomes, were screened for inclusion. Articles were excluded if: unavailable in English; contained no primary data or inaccessible in a full-text form (eg, abstract only).

                  Two reviewers independently extracted data using Preferred Reporting Items for Systematic Reviews and Meta-Analyses-extension for scoping reviews guidelines. We used the Newcastle-Ottawa Scale to assess data quality. Data were pooled using DerSimonian and Laird random-effects models. We performed a meta-analysis of 18 adult studies for 28-day or 30-day hospital readmission; 7 adult studies of 30-day ED revisits and 5 paediatric studies of 72-hour or 7-day ED revisits. We also conducted a stratified analysis by whether access to interpretation services was verified/provided for the adult readmission analysis.

                  Odds of hospital readmissions within a 28-day or 30-day period and ED revisits within a 7-day period.

                  We generated 4830 citations from all data sources, of which 49 (12 paediatric; 36 adult; 1 with both adult and paediatric) were included. In our meta-analysis, language discordant adult patients had increased odds of hospital readmissions (OR 1.11, 95% CI 1.04 to 1.18). Among the 4 studies that verified interpretation services for language discordant patient-clinician interactions, there was no difference in readmission (OR 0.90, 95% CI 0.77 to 1.05), while studies that did not specify interpretation service access/use found higher odds of readmission (OR 1.14, 95% CI 1.06 to 1.22). Adult patients with a non-dominant language preference had higher odds of ED revisits (OR 1.07, 95% CI 1.004 to 1.152) compared with adults with a dominant language preference. In 5 paediatric studies, children of parents language discordant with providers had higher odds of ED revisits at 72 hours (OR 1.12, 95% CI 1.05 to 1.19) and 7 days (OR 1.02, 95% CI 1.01 to 1.03) compared with patients whose parents had language concordant communications.

                  Adult patients with a non-dominant language preference have more hospital readmissions and ED revisits, and children with parents who have a non-dominant language preference have more ED revisits. Providing interpretation services may mitigate the impact of language discordance and reduce hospital readmissions among adult patients.

                  CRD42022302871.

                    Cover page: Association between language discordance and unplanned hospital readmissions or emergency department revisits: a systematic review and meta-analysis.
                    • Article
                    • Peer Reviewed
                    UC Davis Previously Published Works (2022)

                    Background

                    With almost 17 million U.S. cancer survivors, understanding multilevel factors impacting health-related quality of life (HRQOL) is critical to improving survivorship outcomes. Few studies have evaluated neighborhood impact on HRQOL among cancer survivors.

                    Methods

                    We combined sociodemographic, clinical, and behavioral data from three registry-based studies in California. Using a three-level mixed linear regression model (participants nested within block groups and study/regions), we examined associations of both independent neighborhood attributes and neighborhood archetypes, which capture interactions inherent among neighborhood attributes, with two HRQOL outcomes, physical (PCS) and mental (MCS) composite scores.

                    Results

                    For the 2,477 survivors, 46% were 70+ years, 52% were non-Hispanic White, and 53% had localized disease. In models minimally adjusted for age, stage, and cancer recurrence, HRQOL was associated with neighborhood socioeconomic status (nSES), racial/ethnic composition, population density, street connectivity, restaurant environment index, traffic density, urbanicity, crowding, rental properties, and non-single family units. In fully adjusted models, higher nSES remained associated with better PCS, and restaurant environment index, specifically more unhealthy restaurants, associated with worse MCS. In multivariable-adjusted models of neighborhood archetype, compared with upper middle-class suburb, Hispanic small town and inner city had lower PCS, and high status had higher MCS.

                    Conclusions

                    Among survivors, higher nSES was associated with better HRQOL; more unhealthy restaurants were associated with worse HQROL. As some neighborhood archetypes were associated with HRQOL, they provide an approach to capture how neighborhood attributes interact to impact HRQOL.

                    Impact

                    Elucidating the pathways through which neighborhood attributes influence HRQOL is important in improving survivorship outcomes.
                      Cover page: Evaluating the impact of social and built environments on health related-quality of life among cancer survivors
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