Medication Adherence-From Measurer to Measured

This essay by a researcher who developed a widely used medication adherence measure explores his experience with being labeled “nonadherent.”

Associations between Missed Colonoscopy Appointments and Multiple Prior Adherence Behaviors in an Integrated Healthcare System: An Observational Study

BACKGROUND

Missed colonoscopy appointments delay screening and treatment for gastrointestinal disorders. Prior nonadherence with other care components may be associated with missed colonoscopy appointments.

OBJECTIVE

To assess variability in prior adherence behaviors and their association with missed colonoscopy appointments.

DESIGN

Retrospective cohort study.

PARTICIPANTS

Patients scheduled for colonoscopy in an integrated healthcare system between January 2016 and December 2018.

MAIN MEASURES

Prior adherence behaviors included: any missed outpatient appointment in the previous year; any missed gastroenterology clinic or colonoscopy appointment in the previous 2 years; and not obtaining a bowel preparation kit pre-colonoscopy. Other sociodemographic, clinical, and system characteristics were included in a multivariable model to identify independent associations between prior adherence behaviors and missed colonoscopy appointments.

KEY RESULTS

The median age of the 57,590 participants was 61 years; 52.8% were female and 73.4% were white. Of 77,684 colonoscopy appointments, 3,237 (4.2%) were missed. Individuals who missed colonoscopy appointments were more likely to have missed a previous primary care appointment (62.5% vs. 38.4%), a prior gastroenterology appointment (18.4% vs. 4.7%) or not to have picked up a bowel preparation kit (42.4% vs. 17.2%), all p < 0.001. Correlations between the three adherence measures were weak (phi < 0.26). The rate of missed colonoscopy appointments increased from 1.8/100 among individuals who were adherent with all three prior care components to 24.6/100 among those who were nonadherent with all three care components. All adherence variables remained independently associated with nonadherence with colonoscopy in a multivariable model that included other covariates; adjusted odds ratios (with 95% confidence intervals) were 1.6 (1.5-1.8) for outpatient appointments, 1.9 (1.7-2.1) for gastroenterology appointments, and 3.1 (2.9-3.4) for adherence with bowel preparation kits, respectively.

CONCLUSIONS

Three prior adherence behaviors were independently associated with missed colonoscopy appointments. Studies to predict adherence should use multiple, complementary measures of prior adherence when available.

Social Determinants of Health and Body Mass Index in American Indian/Alaska Native Children

Objective: To examine the associations between social determinants of health (SDOH) and prevalent overweight/obesity status and change in adiposity status among American Indian and Alaska Native (AI/AN) children. Methods: The study sample includes 23,950 AI/AN children 2-11 years of age, who used Indian Health Service (IHS) from 2010 to 2014. Multivariate generalized linear mixed models were used to examine the following: (1) cross-sectional associations between SDOH and prevalent overweight/obesity status and (2) longitudinal associations between SDOH and change in adiposity status over time. Results: Approximately 49% of children had prevalent overweight/obesity status; 18% had overweight status and 31% had obesity status. Prevalent severe obesity status was 20% in 6-11-year olds. In adjusted cross-sectional models, children living in counties with higher levels of poverty had 28% higher odds of prevalent overweight/obesity status. In adjusted longitudinal models, children 2-5 years old living in counties with more children eligible for free or reduced-priced lunch had 15% lower odds for transitioning from normal-weight status to overweight/obesity status. Conclusions: This work contributes to accumulating knowledge that economic instability, especially poverty, appears to play a large role in overweight/obesity status in AI/AN children. Research, clinical practice, and policy decisions should aim to address and eliminate economic instability in childhood.

Assessment of a Peer Support Group Intervention for Undocumented Latinx Immigrants With Kidney Failure

Importance

Most undocumented immigrants with kidney failure rely on emergency dialysis (defined as dialysis after a patient presents as critically ill) and experience significant depression and anxiety and high mortality. Culturally and language-concordant peer support group interventions may be associated with reduced depression and anxiety and may provide emotional support.

Objective

To investigate the feasibility and acceptability of a single-group peer support group intervention.

Design, setting, and participants

This qualitative and single-group prospective study for undocumented immigrants with kidney failure receiving emergency dialysis was conducted in Denver, Colorado, from December 2017 to July 2018. The 6-month intervention included peer support group meetings in the hospital while participants were hospitalized for emergency dialysis. Data were analyzed from March to June 2022.

Main outcomes and measures

To assess feasibility, the recruitment, retention, implementation, and delivery for the intervention were tracked. To measure acceptability, interviews were conducted with participants using a structured format. To assess the value of the peer support group intervention, themes and subthemes were identified from interviews with participants and group meetings.

Results

Of 27 undocumented immigrants with kidney failure receiving emergency dialysis, 23 participants (9 females [39.1%] and 14 males [60.9%]; mean [SD] age, 47 [8] years) agreed to participate (recruitment rate, 85.2%). Among them, 5 individuals withdrew and did not attend meetings and 18 participants (retention rate, 78.3%) attended a mean of 6 of 12 meetings (50.0%). From interviews and meetings, 3 themes, with associated subthemes, were identified: camaraderie and emotional support from peers (subthemes: peer support is vital for people newly diagnosed with kidney failure, safe space to build relationships and share hardship with peers, hospital setting for peer support is ideal, solidarity to survive and change policy, and sustainability of the peer support group), solutions to improve care and resilience (subthemes: self-advocacy, self-motivation and optimism, kidney disease education, emotional support from peers caregivers, and faith), and emotional and physical aspects of receiving emergency dialysis (subthemes: psychosocial and physical distress, mixed experiences with language-concordant care, emotional exhaustion from end-of-life conversations, and gratitude for clinicians).

Conclusions and relevance

This study found that peer support group intervention achieved feasibility and acceptability. The findings suggest that a peer support group may be a patient-centered strategy to build camaraderie and provide emotional support in kidney failure, especially for socially marginalized uninsured populations who report limited English proficiency.

Sources of Clinician Burnout in Providing Care for Underserved Patients in a Safety-Net Healthcare System

BACKGROUND

Burnout among clinicians is common and can undermine quality of care, patient outcomes, and workforce preservation, but sources of burnout or protective factors unique to clinicians working in safety-net settings are less well understood. Understanding these clinician experiences may inform interventions to reduce burnout.

OBJECTIVE

To describe clinician perspectives on sources of burnout in a safety-net healthcare system.

DESIGN

Semi-structured interviews were conducted with clinicians from multiple disciplines who provided care at a safety-net healthcare system from October 2018 to January 2019. Transcripts were analyzed using thematic analysis.

PARTICIPANTS

Forty clinicians (25 female and 15 male; mean [SD] age, 41 [9.1]) participated, including physicians, social workers, advanced practice providers, nurses, psychologists, physical and occupational therapists, and other healthcare professionals.

MAIN OUTCOMES AND MEASURES

Themes and subthemes that reflected clinician experiences, burnout, and workload expectations.

KEY RESULTS

Five themes emerged: limited resources (entrenched social injustices, brokenness of the US healthcare system, precarious discharge options, and "revolving door" readmissions), barriers to building trust with patients (chasm of communication, addressing fear and mistrust, and being exposed to threats), administrative requirements (criticism hampering meaningful care, assuming extra workloads, bureaucratic burden), compassion fatigue (confronting traumatic situations, persistent worry about patient safety and welfare, witnessing mistreatment and stigmatization, overextending and overinvesting, withdrawing and shutting down, blaming self and career crisis), and advocacy as a counterbalance to burnout (solidarity when helping underserved communities, fervent advocacy, and patient gratitude).

CONCLUSIONS

Among clinicians who provide care in a safety-net healthcare system, sources of burnout included limited resources, barriers to building trust with patients, administrative requirements, and compassion fatigue, but clinicians remained driven by their desire to advocate for patients. Policy-level interventions which increase funding to safety-net healthcare systems to bolster existing resources and staffing, create peer-support and wellness programs, and support advocacy efforts may mitigate burnout.

Evaluating the Role of System-Generated Communications in Health Care Organizations

This Viewpoint discusses measures to improve the role of system-generated communications in health care organizations

Comparing two durations of medically tailored meals posthospitalization: A randomized clinical trial

BACKGROUND

Medically tailored meals (MTM) may be beneficial to patients after hospital discharge.

OBJECTIVE

To determine if 2 versus 4 weeks of MTM posthospitalization will improve patient outcomes.

DESIGN

Randomized unblinded trial.

SETTINGS AND PARTICIPANTS

Six hundred and fifty patients pending hospital discharge with at least one chronic condition.

INTERVENTION

One MTM a day for 2 versus 4 weeks.

MAIN OUTCOME AND MEASURES

The primary outcome was a change from baseline to 60 days in the Hospital Anxiety Depression Scale (HADS). Secondary outcomes measured change in the Katz activities of daily living (ADLs), DETERMINE nutritional risk, and all-cause emergency department (ED) visits and rehospitalizations.

RESULTS

From baseline to 60 days the HADS anxiety subscale changed 5.4-4.9 in the 2-week group (p = .03) and 5.4-5.3 in the 4-week group (p = .49); the difference in change between groups 0.4 (p = .25). HADS changed 5.4-4.8 in the 2-week group (p = .005) and 5.3-5.1 in the 4-week group (p = .34); the difference in change between groups 0.4 (p = .18). ADL score changed from 5.3 to 5.6 in the 2-week group (p ≤ .0001) and 5.2-5.5 in the 4-week group (p ≤ .0001); the difference in change between groups -0.01 (p = .90). The DETERMINE changed in the 2-week group from 7.2 to 6.4 (p = .0006) and from 7 to 6.7 in the 4-week group (p = .19); the difference in change between groups 0.5 (p = .13). There was no difference in ED visits and rehospitalizations between groups or time to rehospitalization.

CONCLUSIONS

Different durations of short-term MTM did not affect patient-centered or utilization outcomes.

Hypertension care during the COVID-19 pandemic in an integrated health care system

Retention in hypertension care, medication adherence, and blood pressure (BP) may have been affected by the COVID-19 pandemic. In a retrospective cohort study of 64 766 individuals with treated hypertension from an integrated health care system, we compared hypertension care during the year pre-COVID-19 (March 2019-February 2020) and the first year of COVID-19 (March 2020-February 2021). Retention in hypertension care was defined as receiving clinical BP measurements during COVID-19. Medication adherence was measured using prescription refills. Clinical care was assessed by in-person and virtual visits and changes in systolic and diastolic BP. The cohort had a mean age of 67.8 (12.2) years, 51.2% were women, and 73.5% were White. In 60 757 individuals with BP measurements pre-COVID-19, 16618 (27.4%) had no BP measurements during COVID-19. Medication adherence declined from 86.0% to 80.8% (p < .001). In-person primary care visits decreased from 2.7 (2.7) to 1.4 (1.9) per year, while virtual contacts increased from 9.5 (12.2) to 11.2 (14.2) per year (both p < .001). Among individuals with BP measurements, mean (SD) systolic BP was 126.5 mm Hg (11.8) pre-COVID-19 and 127.3 mm Hg (12.6) during COVID-19 (p = .14). Mean diastolic BP was 73.5 mm Hg (8.5) pre-COVID-19 and 73.5 mm Hg (8.7) during COVID-19 (p = .77). Even in this integrated health care system, many individuals did not receive clinical BP monitoring during COVID-19. Most individuals who remained in care maintained pre-COVID BP. Targeted outreach may be necessary to restore care continuity and hypertension control at the population level.

Participant perspectives on the impact of receiving medically tailored meals on post-hospitalization

OBJECTIVE

The objective of this program evaluation was to measure the impact of a medically tailored meals (MTM) intervention on participants' self-reported recovery and satisfaction while recovering from a recent hospitalization.

DESIGN

A qualitative design was employed using a brief survey among all participants at the end of the intervention and phone interviews with a subset of participants.

SAMPLE

Participants in this study were recently discharged from the hospital and were members of (redacted for review) who had received 2-4 weeks of MTM.

MEASUREMENTS

The survey assessed overall satisfaction with the meals and perceived impact on their recovery after hospitalization (81% response rate). Interview questions asked how they felt the meals may have helped while recovering (e.g., helped them financially or with their ability to remain independent).

RESULTS

Among survey participants, 65% were extremely or very satisfied with their meals. Reasons that MTM were helpful while they were recovering included having sufficient food to eat, having healthy food to eat, the convenience of the meals, and ease of preparing the meals.

CONCLUSIONS

Participants receiving MTM were generally very satisfied with the program. Including nutrition education and more flexibility in quantity and frequency of food may improve satisfaction and consumption of food.

Early Peanut Introduction in Primary Care: Evaluation of a Multicomponent Intervention

OBJECTIVE

To determine whether a multicomponent intervention focused on early peanut introduction was associated with a lower peanut allergy incidence in young children.

METHODS

The study cohort comprised all children born January 1, 2013 through December 31, 2018 receiving care at a large health care organization. Intervention activities occurred over 16 months and included provider educational programs, electronic health record tools, and new patient instructions. We used an interrupted time series design to assess whether peanut allergy incidence differed across 3 time periods (preintervention, interim, postintervention) among high- and low-risk children. The primary outcome was incident peanut allergy by age 24 months, defined as peanut allergy in the allergy field or active problem list plus a positive supportive test. Severe eczema and/or egg allergy presence defined high-risk. Because the study was conducted as part of routine care, it was not feasible to measure what counseling clinicians provided, or how and when parents fed their children peanut-containing foods.

RESULTS

In a cohort of 22,571 children, the percent with peanut allergy by age 24 months was 17.3% (116 of 671) among high-risk and 0.8% (181 of 21,900) among low-risk children. In multivariate analyses, the adjusted peanut allergy rate per 100 person-years was not significantly different across study periods among high-risk (9.6 preintervention, 11.7 interim, and 9.9 postintervention, P = .70) or low-risk (0.5 preintervention, 0.7 interim, and 0.5 postintervention, P = .17) children.

CONCLUSIONS

In a community-based setting, the incidence of peanut allergy did not decline following a multicomponent intervention focused on early peanut introduction.

Patient Pill Organization Strategies and Adherence Measured in a Cross-Sectional Study of Hypertension

BACKGROUND

The strategies patients use to organize medications (eg, pill dispenser) may be reflected in adherence measured at follow-up. We studied whether medication organization strategies patients use at home are associated with adherence measured using pharmacy-fills, self-report, and pill counts.

DESIGN

Secondary analysis of data from a prospective randomized clinical trial.

SETTING

Eleven US safety-net and community primary care clinics.

PATIENTS

Of the 960 enrolled self-identified non-Hispanic Black and White patients prescribed antihypertensive medications, 731 patients reported pill organization strategies and were included.

VARIABLE

Patients were asked if they use any of the following medication organization strategies: finish previous refills first; use a pill dispenser; combine same prescriptions; or combine dissimilar prescriptions.

OUTCOMES

Adherence to antihypertensive medications using pill counts (range, 0.0-1.0% of the days covered), pharmacy-fill (proportion of days covered >90%), and self-report (adherent/non-adherent).

RESULTS

Of the 731 participants, 38.3% were men, 51.7% were age ≥65, 52.9% self-identified as Black or African American. Of the strategies studied, 51.7% finished previous refills first, 46.5% used a pill dispenser, 38.2% combined same prescriptions and 6.0% combined dissimilar prescriptions. Median (IQR) pill count adherence was 0.65 (0.40-0.87), pharmacy-fill adherence was 75.7%, and self-reported adherence was 63.2%. Those who combined same prescriptions had significantly lower measured pill count adherence than those who did not (0.56 (0.26-0.82) vs 0.70 (0.46-0.90), p<0.01) with no significant difference in pharmacy-fill (78.1% vs 74%, p=0.22) or self-reported adherence (63.0% vs 63.3%, p=0.93).

CONCLUSION

Self-reported medication organization strategies were common. Combining same prescriptions was associated with lower adherence as measured using pill counts but not pharmacy-fills or self-report. Clinicians and researchers should identify the pill organization strategies used by their patients to understand how these strategies may influence measures of patient adherence.

TRIAL REGISTRATION

ClinicalTrials.gov NCT03028597; https://clinicaltrials.gov/ct2/show/NCT03028597 (Archived by WebCite at http://www.webcitation.org/72vcZMzAB).

Association between changes in loneliness identified through screening and changes in depression or anxiety in older adults

BACKGROUND

Changes in loneliness are associated with corresponding changes in depression, anxiety, and general health in population surveys, but few studies have assessed these associations through repeated screening in clinical settings.

METHODS

Retrospective cohort study among individuals ≥age 65 in an integrated health care system who completed loneliness screening before two annual wellness visits, separated by a mean of 12.9 (SD 2.0) months, between 2013 and 2018. Their responses identified four subgroups: individuals who were persistently lonely; not lonely; experienced an increase (recently lonely); or decrease (previously lonely) in loneliness. Loneliness was assessed with a single item. Depression was assessed with the Patient Health Questionnaire-2. Anxiety was assessed with the Generalized Anxiety Disorder-2. Fair/poor general health was assessed by a single item. Linear mixed effects models assessed changes in outcomes after covariate adjustment.

RESULTS

The cohort comprised 24,666 individuals (19.2% of older adults in the system). Mean age was 73.7 years (SD 6.4); 54.6% were female, and 11.6% were members of racial and ethnic minority groups. Of these individuals, 1936 (7.8%) were persistently lonely, 1687 (6.8%) were recently lonely, 1551 (6.3%) were previously lonely, and 19,492 (79.0%) were not lonely at either time point. After adjustment for sociodemographic, clinical and social variables, recent loneliness was associated with increases in depression (adjusted odds ratio [aOR] 1.76, 95% confidence interval [CI] 1.41-2.19) and anxiety (aOR 1.67, 95% CI 1.32-2.10). Previous loneliness was associated with decreases in depression (aOR, 0.46, 95% CI 0.36-0.58) and anxiety (aOR 0.69, 95% CI 0.54-0.90). Changes in loneliness were not associated with changes in general health.

CONCLUSIONS

Changes in loneliness identified through screening were associated with corresponding changes in depression and anxiety. These findings support the potential value of identifying social risk factors in clinical settings among older adults.

Health Behavior Theory and Hypertension Management: Comparisons Among Black, White, and American Indian and Alaska Native Patients

In the United States, hypertension is more common among individuals from racial and ethnic minority groups. Hypertension control rates are also lower for minority group members compared with White Americans. However, little research has employed well-established theoretical perspectives on health behavior, such as the Theory of Planned Behavior (TPB) and the Model of Goal-Directed Behavior (MGB), to better understand racial differences in rates of hypertension control. The present study examines the psychological processes involved in efforts to control blood pressure, through the lens of the TPB augmented by the MGB, in hypertensive patients of three racial groups: American Indian/Alaska Native, Black/African American, and White. Participants completed measures of past efforts to control blood pressure, attitudes, norms, perceived behavioral control, intentions, and anticipated emotions. Analyses employed confirmatory factor analysis and cross-groups path analysis. Measurement of the theoretical constructs and core putative mediators of blood pressure control intentions were largely similar across racial groups. With regard to the patterns of relationships among the constructs, differences among the groups were most apparent in pathways from past efforts to both cognitive and affective theoretical antecedents of intentions. These findings contribute to the sparse literature on factors involved in racial differences in hypertension control rates and may inform future interventions aimed at increasing hypertension control behaviors. Trial Registration ClinicalTrials.gov, NCT03028597, registered 23 January 2017, https://clinicaltrials.gov/ct2/show/NCT03028597; ClinicalTrials.gov, NCT04414982, registered 4 June 2020 (retrospectively registered), https://www.clinicaltrials.gov/ct2/show/NCT04414982.

Associations Between Rurality, pre-pregnancy Health Status, and Macrosomia in American Indian/Alaska Native Populations

OBJECTIVES

To examine the relationships between pre-pregnancy diabetes mellitus (DM), gestational diabetes mellitus (GDM), pre-pregnancy body mass index (BMI) and county-level social determinants of health, with infant macrosomia within a sample of American Indian/Alaska Native (AI/AN) women receiving Indian Health Service (IHS) care.

METHODS

The sample included women-infant dyads representing 1,136 singleton births from fiscal year 2011 (10/1/2019-9/30/2011). Data stemmed from the IHS Improving Health Care Delivery Data Project. Multivariate generalized linear mixed models were fitted to assess the association of macrosomia with pre-pregnancy health status and social determinants of health.

RESULTS

Nearly half of the women in the sample were under age 25 years (48.6%), and most had Medicaid health insurance coverage (76.7%). Of those with a pre-pregnancy BMI measure, 66.2% were overweight or obese. Although few women had pre-pregnancy DM (4.0%), GDM was present in 12.8% of women. Most women had a normal term delivery (85.4%). Overweight, obesity, pre-pregnancy DM, and county-level rurality were all significantly associated with higher odds of infant macrosomia.

Social risks and social needs in a health insurance exchange sample: a longitudinal evaluation of utilization

Background

Health systems are increasingly attempting to intervene on social adversity as a strategy to improve health care outcomes. To inform health system efforts to screen for social adversity, we sought to explore the stability of social risk and interest in assistance over time and to evaluate whether the social risk was associated with subsequent healthcare utilization.

Methods

We surveyed Kaiser Permanente members receiving subsidies from the healthcare exchange in Southern California to assess their social risk and desire for assistance using the Accountable Health Communities instrument. A subset of initial respondents was randomized to be re-surveyed at either three or six months later.

Results

A total of 228 participants completed the survey at both time points. Social risks were moderate to strongly stable across three and six months (Kappa range = .59-.89); however, social adversity profiles that included participants’ desire for assistance were more labile (3-month Kappa = .52; 95% CI = .41-.64 & 6-month Kappa = .48; 95% CI = .36-.6). Only housing-related social risks were associated with an increase in acute care (emergency, urgent care) six months after initial screening; no other associations between social risk and utilization were observed.

Conclusions

This study suggests that screening for social risk may be appropriate at intervals of six months, or perhaps longer, but that assessing desire for assistance may need to occur more frequently. Housing risks were associated with increases in acute care. Health systems may need to engage in screening and referral to resources to improve overall care and ultimately patient total health.

Transition to Virtual Asthma Care During the COVID-19 Pandemic: An Observational Study

BACKGROUND

The COVID-19 pandemic increased reliance on virtual care for patients with persistent asthma.

OBJECTIVE

This retrospective cohort study assessed changes from in-person to virtual care during the pandemic. In patients with persistent asthma, compared with the same period before the pandemic.

METHODS

Kaiser Permanente Colorado members aged 18 to 99 years with persistent asthma were evaluated during two periods (March to October 2019 and March to October 2020). Comparison of asthma exacerbations (hospitalizations, emergency department visits, and courses of oral prednisone) and asthma medication metrics were evaluated between the two periods and by type of care received during the pandemic (no care, virtual care only, in-person care only, or a mix of virtual and in-person care). Population characteristics by type of care received during the pandemic were also evaluated.

RESULTS

Among 7,805 adults with persistent asthma, those who used more virtual care or sought no care during the pandemic were younger and had fewer comorbidities, mental health diagnoses, or financial barriers. Exacerbations decreased (0.264 to 0.214; P <.001) as did courses of prednisone (0.213 to 0.169). Asthma medication adherence (0.53 to 0.54; P <.001) and the asthma medication ratio, a quality-of-care metric (0.755 to 0.762; P = .019), increased slightly. Patients receiving a mix of in-person and virtual care had the highest rate of exacerbations (0.83) and a lower asthma medication ratio (0.74) despite having the highest adherence (.57).

CONCLUSIONS

Despite an increase in virtual care, asthma exacerbations decreased except among individuals who received both in-person and virtual care, likely because they had more severe disease.

Perspectives of Latinx Individuals Who Were Unvaccinated And Hospitalized for COVID-19: A Qualitative Study

IMPORTANCE

Latinx individuals in the United States have lower COVID-19 vaccination rates and higher rates of COVID-19 infections, hospitalizations, and deaths than non-Latinx White individuals. Little is known about the perspectives of Latinx adults who had not received the COVID-19 vaccination and were hospitalized for COVID-19.

OBJECTIVE

To describe the perspectives of Latinx individuals who were unvaccinated and subsequently hospitalized for COVID-19.

DESIGN, SETTING, AND PARTICIPANTS

This qualitative study was conducted using semistructured phone interviews with 25 Latinx adults who were unvaccinated and survived a COVID-19 hospitalization in a public safety net hospital in Colorado from February to November 2021. Interviews were audio recorded, and transcripts were analyzed using thematic analysis.

MAIN OUTCOMES AND MEASURES

Themes and subthemes of perspectives on vaccination.

RESULTS

Among 25 adults (14 [56.0%] women, 11 [44.0%] men; mean [SD] age, 51 [15] years) who participated, all participants self-identified as Latino, Latina, or Latinx or Hispanic. There were 11 individuals who relied on emergency Medicaid (hospital coverage for Denver residents who are undocumented), while 10 individuals (40.0%) were essential workers and 13 individuals (52.0%) were unemployed. In interviews, 3 themes (with subthemes) were identified: factors associated with vaccination after hospitalization (subthemes: fear of death, avoiding hospitalization and reinfection, convinced COVID-19 is real, and responded to pressure from others), concerns about the COVID-19 vaccine (subthemes: experimental status and short timeline for production, contents of vaccine unknown or concerning, vaccine considered ineffective, worrisome immediate and long-term adverse effects, mixed and conflicting information, and government aimed to control or mark population through vaccination), and opportunities to improve vaccine uptake (subthemes; sharing personal experiences through social media, testimonials about minimal vaccine adverse effects, connecting with friends and family about the hospitalization experience, making the vaccine more accessible, and connecting with trusted sources of information).

CONCLUSIONS AND RELEVANCE

This study found that Latinx individuals who were unvaccinated and subsequently hospitalized for COVID-19 were motivated to engage in advocacy to encourage vaccination in their communities. These findings suggest that supporting patient advocacy after hospital discharge and continued efforts to create low-barrier, patient-informed public health strategies may be associated with increased vaccine uptake in Latinx communities.

Racial and Ethnic Equity in Care for Hypertension and Diabetes in an Urban Indian Health Organization

Approximately 70% of American Indian/Alaska Native (AI/AN) individuals reside in urban areas. Urban Indian Health Organizations (UIHOs) provide culturally engaged primary care for AI/AN patients and members of other racial and ethnic groups who have experienced disparities in diabetes and hypertension care, and are commonly affected by social and economic barriers to care. We assessed whether disparities were present between the racial and ethnic groups served by the largest UIHO in the USA. We developed retrospective cohorts of patients with hypertension or diabetes receiving primary care from this UIHO, measuring differences between AI/AN, Spanish-preferring Latinx, English-preferring Latinx, Black, and White patients in mean systolic blood pressure (SBP) and mean hemoglobin A1c (A1c) as primary outcomes. To assess processes of care, we also compared visit intensity, missed visits, and medication treatment intensity in regression models adjusted for sociodemographic and clinical characteristics. For hypertension (n = 2148), adjusted mean SBP ranged from 135.8 mm Hg among Whites to 141.3 mm Hg among Blacks (p = 0.06). For diabetes (n = 1211), adjusted A1c ranged from 7.7% among English-preferring Latinx to 8.7% among Blacks (p = 0.38). Care processes for both hypertension and diabetes varied across groups. No group consistently received lower-quality care. This UIHO provided care of comparable quality for hypertension and diabetes among urban-dwelling AI/ANs and members of other racial, ethnic, and language preference groups. Systematic assessments of care quality in UIHOs may help demonstrate the importance of their role in providing care and improve the quality of care.

Relationship Between Social Vulnerability Indicators and Trial Participant Attrition: Findings From the HYVALUE Trial

BACKGROUND

Social vulnerability indicators are associated with health care inequities and may similarly impede ongoing participation in research studies. We evaluated the association of social vulnerability indicators and research participant attrition in a trial focused on reducing health disparities.

METHODS

Self-identified White or Black adults enrolled in the HYVALUE trial (Hypertension and VALUEs), a randomized trial testing a values-affirmation intervention on medication adherence, from February 2017 to September 2019 were included. The self-reported measures of social vulnerability indicators included: (1) Black race; (2) female gender; (3) no health insurance; (4) unemployment; (5) a high school diploma or less; and (6) financial-resource strain. Full attrition was defined as not completing at least one 3- or 6-month follow-up study visit. Log-binomial regression models adjusted for age, gender, race, medical comorbidities, and the other social vulnerability indicators to estimate the relative risk of each social vulnerability indicator with study attrition.

RESULTS

Among 825 participants, the mean age was 63.3 years (±11.7 years), 60% were women, 54% were Black, and 97% reported at least one social vulnerability. Overall, 21% participants had full attrition after study enrollment. After adjustment for all other social vulnerabilities, only financial-resource strain remained consistently associated with full attrition (relative risk, 1.71 [95% CI, 1.28-2.29]). In a secondary analysis of partial attrition (completed only one follow-up visit), financial-resource strain (relative risk, 1.40 [95% CI, 1.09-1.81]) and being uninsured (relative risk, 1.54 [95% CI, 1.01-2.34]) were associated with partial attrition.

CONCLUSIONS

In a trial aimed at reducing disparities in medication adherence, participants who reported financial-resource strain had a higher risk of participant attrition independent of race or gender. Our findings suggest that efforts to retain diverse populations in clinical trials should extend beyond race and gender to consider other social vulnerability indicators.

REGISTRATION

URL: https://www.

CLINICALTRIALS

gov; Unique identifier: NCT03028597.

Social determinants of obesity in American Indian and Alaska Native peoples aged ≥ 50 years

OBJECTIVE

American Indian and Alaska Native peoples (AI/ANs) have a disproportionately high rate of obesity, but little is known about the social determinants of obesity among older AI/ANs. Thus, our study assessed social determinants of obesity in AI/ANs aged ≥ 50 years.

DESIGN

We conducted a cross-sectional analysis using multivariate generalized linear mixed models to identify social determinants associated with the risk of being classified as obese (BMI ≥ 30.0 kg/m2). Analyses were conducted for the total study population and stratified by median county poverty level.

SETTING

Indian Health Service (IHS) data for AI/ANs who used IHS services in FY2013.

PARTICIPANTS

27,696 AI/ANs aged ≥ 50 years without diabetes.

RESULTS

Mean BMI was 29.8 ± 6.6 with 43% classified as obese. Women were more likely to be obese than men, and younger ages were associated with higher obesity risk. While having Medicaid coverage was associated with lower odds of obesity, private health insurance was associated with higher odds. Living in areas with lower rates of educational attainment and longer drive times to primary care services were associated with higher odds of obesity. Those who lived in a county where a larger percentage of people had low access to a grocery store were significantly less likely to be obese.

CONCLUSIONS

Our findings contribute to the understanding of social determinants of obesity among older AI/ANs and highlight the need to investigate AI/AN obesity, including longitudinal studies with a life course perspective to further examine social determinants of obesity in older AI/ANs.

Social Risk Factors and Desire for Assistance Among Patients Receiving Subsidized Health Care Insurance in a US-Based Integrated Delivery System

PURPOSE

Because social conditions such as food insecurity and housing instability shape health outcomes, health systems are increasingly screening for and addressing patients' social risks. This study documented the prevalence of social risks and examined the desire for assistance in addressing those risks in a US-based integrated delivery system.

METHODS

A survey was administered to Kaiser Permanente members on subsidized exchange health insurance plans (2018-2019). The survey included questions about 4 domains of social risks, desire for help, and attitudes. We conducted a descriptive analysis and estimated multivariate modified Poisson regression models.

RESULTS

Of 438 participants, 212 (48%) reported at least 1 social risk factor. Housing instability was the most common (70%) factor reported. Members with social risks reported more discomfort being screened for social risks (14.2% vs 5.4%; P = .002) than those without risks, although 90% of participants believed that health systems should assist in addressing social risks. Among those with 1-2 social risks, however, only 27% desired assistance. Non-Hispanic Black participants who reported a social risk were more than twice as likely to desire assistance compared with non-Hispanic White participants (adjusted relative risk [RR] 2.2; 95% CI, 1.3-3.8).

CONCLUSIONS

Athough most survey participants believed health systems have a role in addressing social risks, a minority of those reporting a risk wanted assistance and reported more discomfort being screened for risk factors than those without risks. Health systems should work to increase the comfort of patients in reporting risks, explore how to successfully assist them when desired, and offer resources to address these risks outside the health care sector.VISUAL ABSTRACT.

Effect of Values Affirmation on Reducing Racial Differences in Adherence to Hypertension Medication: The HYVALUE Randomized Clinical Trial

IMPORTANCE

Stereotype threat, or the fear of confirming a negative stereotype about one's social group, may contribute to racial differences in adherence to medications by decreasing patient activation to manage chronic conditions.

OBJECTIVE

To examine whether a values affirmation writing exercise improves medication adherence and whether the effect differs by patient race.

DESIGN, SETTING, AND PARTICIPANTS

The Hypertension and Values trial, a patient-level, blinded randomized clinical trial, compared an intervention and a control writing exercise delivered immediately prior to a clinic appointment. Of 20 777 eligible, self-identified non-Hispanic Black and White patients with uncontrolled hypertension who were taking blood pressure (BP) medications, 3891 were approached and 960 enrolled. Block randomization by self-identified race ensured balanced randomization. Patients enrolled between February 1, 2017, and December 31, 2019, at 11 US safety-net and community primary care clinics, with outcomes assessed at 3 and 6 months. Analysis was performed on an intention-to-treat basis.

INTERVENTIONS

From a list of 11 values, intervention patients wrote about their most important values and control patients wrote about their least important values.

MAIN OUTCOMES AND MEASURES

The primary outcome of adherence to BP medications was measured using pharmacy fill data (proportion of days covered >90%) at baseline, 3 months, and 6 months. The secondary outcome was systolic and diastolic BP. Patient activation to manage their health was also measured.

RESULTS

Of 960 patients, 474 (286 women [60.3%]; 256 Black patients [54.0%]; mean [SD] age, 63.4 [11.9] years) were randomly assigned to the intervention group and 486 (288 women [59.3%]; 272 Black patients [56.0%]; mean [SD] age, 62.8 [12.0] years) to the control group. Baseline medication adherence was lower (318 of 482 [66.0%] vs 331 of 412 [80.3%]) and mean (SE) BP higher among Black patients compared with White patients (systolic BP, 140.6 [18.5] vs 137.3 [17.8] mm Hg; diastolic BP, 83.9 [12.6] vs 79.7 [11.3] mm Hg). Compared with baseline, pharmacy fill adherence did not differ between intervention and control groups at 3 months (odds ratio [OR], 0.91 [95% CI, 0.57-1.43]) or at 6 months (OR, 0.86 [95% CI, 0.53-1.38]). There were also no treatment effect differences in pharmacy fill adherence by patient race (Black patients at 3 months: OR, 1.08 [95% CI, 0.61-1.92]; at 6 months: OR, 1.04 [95% CI, 0.58-1.87]; White patients at 3 months: OR, 0.68 [95% CI, 0.33-1.44]; at 6 months: OR, 0.55 [95% CI, 0.24-1.27]). Immediately after the intervention, the median patient activation was higher in intervention patients than in control patients, but this difference was not statistically significant in an unadjusted comparison (75.0 [IQR, 65.5-84.8] vs 72.5 [IQR, 63.1-80.9]; P = .06). In adjusted models, the Patient Activation Measure score immediately after the intervention was significantly higher in the intervention patients than in control patients (mean difference, 2.3 [95% CI, 0.1-4.5]).

CONCLUSIONS AND RELEVANCE

A values affirmation intervention was associated with higher patient activation overall but did not improve adherence or blood pressure among Black and White patients with hypertension.

TRIAL REGISTRATION

ClinicalTrials.gov Identifier: NCT03028597.

Social and Cultural Challenges in Caring for Latinx Individuals With Kidney Failure in Urban Settings

IMPORTANCE

Latinx individuals with end-stage kidney disease (ESKD) constitute 19% of US patients receiving in-center scheduled hemodialysis. Compared with non-Latinx White patients, Latinx individuals often face poor economic, environmental, and living circumstances. The challenges for health care professionals engendered by these circumstances when Latinx individuals present with ESKD and possible solutions have not been well described.

OBJECTIVE

To examine the perceptions of interdisciplinary health care professionals who work in dialysis centers in urban settings with large racial and ethnic minority populations about how social challenges affect the care of Latinx patients with ESKD.

DESIGN, SETTING, AND PARTICIPANTS

This qualitative study administered semistructured interviews of interdisciplinary health care professionals at 4 urban dialysis centers in Denver, Colorado, from April 1 to June 30, 2019. Interviews were audio recorded, transcribed verbatim, and analyzed using thematic analysis.

MAIN OUTCOMES AND MEASURES

Themes and subthemes of barriers to care.

RESULTS

Thirty interdisciplinary dialysis center health care professionals (23 [77%] female; mean [SD] age, 42.0 [11.6] years) participated. Four themes were identified. The first 3 themes and their respective subthemes (in parentheses) describe challenges to kidney care: compromised quality of care attributable to communication and cultural barriers (language interpretation by telephone, in-person language interpretation, burden of ad hoc interpretation, low-quality health care, lack of language- and culturally concordant materials, and health literacy levels), difficulty with health care access (unreliable transportation, economic instability, and loss of insurance benefits), and concerns about patient psychosocial well-being (social isolation, hopelessness, stigma of illness, and balancing personal social challenges). The fourth theme describes solutions to improve care (culturally responsive care, patient empowerment and activation, supporting primary caregivers, and peer support with navigation of the health care system).

CONCLUSIONS AND RELEVANCE

This study's findings suggest that dialysis center policies are needed that require high-quality language interpretation and the availability of culturally concordant educational materials. Community-based interventions that improve patient activation and provide peer support as well as culturally responsive care may improve the care of Latinx patients with ESKD receiving in-center scheduled hemodialysis.

Association of Financial Worry and Material Financial Risk with Short-Term Ambulatory Healthcare Utilization in a Sample of Subsidized Exchange Patients

BACKGROUND

Financial burden can affect healthcare utilization. Few studies have assessed the short-term associations between material (debt, trouble paying rent) and psychological (worry or distress about affording future healthcare) financial risks, and subsequent outpatient and emergency healthcare use. Worry was defined as concerns about affording future healthcare.

OBJECTIVE

Examine whether worry about affording healthcare is associated with healthcare utilization when controlling for material risk and general anxiety DESIGN: Longitudinal observational study PARTICIPANTS: Kaiser Permanente members with exchange-based federally subsidized health insurance (n = 450, 45% response rate) MAIN MEASURES: Survey measures of financial risks (material difficulty paying for medical care and worry about affording healthcare) and general anxiety. Healthcare use (primary care, urgent care, emergency department, and outpatient specialty visits) in the 6 months following survey completion.

KEY RESULTS

Emergency department and primary care visits were not associated with material risk, worry about affording care, or general anxiety in individual and pooled analyses (all 95% confidence intervals (CI) for relative risk (RR) included 1). Although no individual predictor was associated with urgent care use (all 95% CIs for RR included 1), worry about affording prescriptions (relative risk (RR) = 2.01; 95% CI 1.14, 3.55) and general anxiety (RR = 0.38; 95% CI 0.15, 0.95) were significant when included in the same model, suggesting the two confounded each other. Worry about affording healthcare services was associated with fewer specialty care visits (RR = 0.40; 95% CI 0.25, 0.64) even when controlling for material risk and general anxiety, although general anxiety was also associated with more specialty care visits (RR = 1.98; 95% CI, 1.23, 3.18).

CONCLUSIONS

Screening for both general anxiety and financial worry may assist with specialty care utilization. Identifying these concerns may provide more opportunities to assist patients. Future research should examine interventions to reduce worry about cost of care.

Commitment to Change Statements and Actual Practice Change After a Continuing Medical Education Intervention

INTRODUCTION

Continuing medical education (CME) interventions often evaluate participant commitment to change (CTC) clinical practice. Evidence linking CTC to actual practice change is limited.

METHODS

In an intervention that combined live CME with changes to the electronic health record to promote judicious antibiotic use for children with urinary tract infections (UTIs), we evaluated CTC and subsequent prescribing behavior in Kaiser Permanente Colorado, an integrated health care system. CTC was assessed immediately after the session using closed-ended questions about session learning objectives and open-ended questions to elicit specific practice changes. Perceived barriers to implementing recommended changes were also assessed.

RESULTS

Among 179 participants, 80 (45%) completed postsession evaluations and treated one or more child with a UTI in the subsequent 17 months (856 UTIs in total). In closed-ended responses about session learning objectives, 45 clinicians (56%) committed to changing practice for antibiotic choice and duration, whereas 37 (46%) committed to implementing new practice guidelines. When asked open-ended questions to identify specific practice changes, 32 (40%) committed to antibiotic choice change and 29 (36%) committed to treatment duration change. Participants who made specific CTC statements had greater improvement in antibiotic choice (relative rate ratio 1.56, 95% CI 1.16-2.09) and duration (relative rate ratio 1.59, 95% CI 1.05-2.41) than participants who did not make specific commitments. Few perceived barriers affected subsequent prescribing.

DISCUSSION

Commitments to changing specific clinical behaviors were associated with sustained changes in prescribing for children with UTIs. Linking self-evaluations with clinical data in integrated health care systems is an important tool for CME evaluators.

Factors Associated With Opting Out of Automated Text and Telephone Messages Among Adult Members of an Integrated Health Care System

IMPORTANCE

Health care systems deliver automated text or telephone messages to remind patients of appointments and to provide health information. Patients who receive multiple messages may demonstrate message fatigue by opting out of future messages.

OBJECTIVE

To assess whether the volume of automated text or interactive voice response (IVR) telephone messages is associated with the likelihood of patients requesting to opt out of future messages.

DESIGN, SETTING, AND PARTICIPANTS

This retrospective cohort study was conducted at Kaiser Permanente Colorado (KPCO), an integrated health care system. All adult members who received 1 or more automated text or IVR message between October 1, 2018, and September 30, 2019, were included.

EXPOSURES

Receipt of automated text or IVR messages.

MAIN OUTCOMES AND MEASURES

Message volume and opt-out rates obtained from messaging systems over 1 year.

RESULTS

Of the 428 242 adults included in this study, 59.7% were women, and 66.5% were White; the mean (SD) age was 52.3 (17.7) years. During the study period, 84.1% received 1 or more text messages (median, 4 messages; interquartile range, 2-8 messages) and 67.8% received 1 or more IVR messages (median, 3 messages; interquartile range, 1-6 messages). A total of 8929 individuals (2.5%) opted out of text messages, and 4392 (1.5%) opted out of IVR messages. In multivariable analyses, individuals who received 10 to 19.9 or 20 or more text messages per year had higher opt-out rates for text messages compared with those who received fewer than 2 messages per year (adjusted odds ratio [aOR]: 10-19.9 vs <2 messages, 1.27 [95% CI, 1.17-1.38]; ≥20 vs <2 messages, 3.58 [95% CI, 3.28-3.91]), whereas opt-out rates increased progressively in association with IVR message volume, with the highest rates among individuals who received 10.0 to 19.9 messages (aOR, 11.11; 95% CI, 9.43-13.08) or 20.0 messages or more (aOR, 49.84; 95% CI, 42.33-58.70). Individuals opting out of text messages were more likely to opt out of IVR messages (aOR, 4.07; 95% CI, 3.65-4.55), and those opting out of IVR messages were more likely to opt out of text messages (aOR, 5.92; 95% CI, 5.29-6.61).

CONCLUSIONS AND RELEVANCE

In this cohort study among adult members of an integrated health care system, requests to discontinue messages were associated with greater message volume. These findings suggest that, to preserve the benefits of automated outreach, health care systems should use these messages judiciously to reduce message fatigue.

Identifying Relative Changes in Social Risk Factors: An Analytic Approach

BACKGROUND

Individuals often report concurrent social risk factors such as food insecurity, unstable housing, and transportation barriers. Comparing relative changes between pairs of social risk factors may identify those that are more resistant to change.

OBJECTIVE

The objective of this study was to develop a method to describe relative changes in pairs of social risk factors.

RESEARCH DESIGN

This was a prospective cohort study.

SUBJECTS

Participants in a randomized controlled trial of hypertension care in an Urban Indian Health Organization.

MEASURES

We measured 7 social risk factors (housing, transportation, food, clothing, health care, utilities, and debts) at enrollment, 6, and 12 months among 295 participants in the trial. We hypothesized that pairwise comparisons could identify social risk factors that were less likely to change over time. We used conditional odds ratios (ORs) with 95% confidence intervals (CIs) to rank each pair.

RESULTS

Food, clothing, health care, utilities, and debts had more changes between 0 and 6 months relative to housing (OR=2.3, 3.4, 4.7, 3.5, and 3.4, respectively; all 95% CI excluded 1.0). These same social risk factors also had more changes between baseline and 6 months relative to transportation (OR=2.8, 3.4, 4.9, 4.7, and 4.1, respectively; all 95% CI excluded 1.0). Changes in housing and transportation risk factors were comparable (OR=0.7, 95% CI: 0.4-1.4). Relative changes between 6 and 12 months were similar.

CONCLUSIONS

Housing and transportation exhibited fewer relative changes than other social risk factors and might be more resistant to change. Awareness of the relationships between social risk factors can help define priorities for intervention.

Opportunities, Challenges, and Strategies for Engaging Family in Diabetes and Hypertension Management: A Qualitative Study

Family engagement may improve disease management, yet little is known about this topic as it relates to underrepresented minorities who receive care in low-resource primary care settings. This study aimed to explore family engagement in diabetes and hypertension management at an Urban Indian Health Organization to identify opportunities and challenges, and inform care strategies. We employed semi-structured interviews, genograms, eco-maps, and timelines, among 23 English- and Spanish-speaking American Indian and Latino adults with a dual diagnosis of type 2 diabetes and hypertension and 13 family members. Using thematic analysis, we found that family support is not always available, patients have difficulty sharing medical information, and family often live far away. Conversely, opportunities to leverage included a desire for increased engagement, motivation from the younger generation, prevention within the family, outreach to family members with the same conditions, and learning from elders and ancestors. Implications for programs, clinical care, and research are discussed.

Evaluating Population Coverage in a Regional Distributed Data Network: Implications for Electronic Health Record-Based Public Health Surveillance

OBJECTIVE

Electronic health records (EHRs) hold promise as a public health surveillance tool, but questions remain about how EHR patients compare with populations in health and demographic surveys. We compared population characteristics from a regional distributed data network (DDN), which securely and confidentially aggregates EHR data from multiple health care organizations in the same geographic region, with population characteristics from health and demographic surveys.

METHODS

Ten health care organizations participating in a Colorado DDN contributed data for coverage estimation. We aggregated demographic and geographic data from 2017 for patients aged ≥18 residing in 7 counties. We used a cross-sectional design to compare DDN population size, by county, with the following survey-estimated populations: the county population, estimated by the American Community Survey (ACS); residents seeking any health care, estimated by the Colorado Health Access Survey; and residents seeking routine (eg, primary) health care, estimated by the Behavioral Risk Factor Surveillance System. We also compared data on the DDN and survey populations by sex, age group, race/ethnicity, and poverty level to assess surveillance system representativeness.

RESULTS

The DDN population included 609 840 people in 7 counties, corresponding to 25% coverage of the general adult population. Population coverage ranged from 15% to 35% across counties. Demographic distributions generated by DDN and surveys were similar for many groups. Overall, the DDN and surveys assessing care-seeking populations had a higher proportion of women and older adults than the ACS population. The DDN included higher proportions of Hispanic people and people living in high-poverty neighborhoods compared with the surveys.

CONCLUSION

The DDN population is not a random sample of the regional adult population; it is influenced by health care use patterns and organizations participating in the DDN. Strengths and limitations of DDNs complement those of survey-based approaches. The regional DDN is a promising public health surveillance tool.

Predictors of Hyperkalemia and Hypokalemia in Individuals with Diabetes: a Classification and Regression Tree Analysis

BACKGROUND

Both hyperkalemia and hypokalemia can lead to cardiac arrhythmias and are associated with increased mortality. Information on the predictors of potassium in individuals with diabetes in routine clinical practice is lacking.

OBJECTIVE

To identify predictors of hyperkalemia and hypokalemia in adults with diabetes.

DESIGN

Retrospective cohort study, with classification and regression tree (CART) analysis.

PARTICIPANTS

321,856 individuals with diabetes enrolled in four large integrated health care systems from 2012 to 2013.

MAIN MEASURES

We used a single serum potassium result collected in 2012 or 2013. Hyperkalemia was defined as a serum potassium ≥ 5.5 mEq/L and hypokalemia as < 3.5 mEq/L. Predictors included demographic factors, laboratory measurements, comorbidities, medication use, and health care utilization.

KEY RESULTS

There were 2556 hypokalemia events (0.8%) and 1517 hyperkalemia events (0.5%). In univariate analyses, we identified concordant predictors (associated with increased probability of both hyperkalemia and hypokalemia), discordant predictors, and predictors of only hyperkalemia or hypokalemia. In CART models, the hyperkalemia "tree" had 5 nodes and a c-statistic of 0.76. The nodes were defined by prior potassium results and eGFRs, and the 5 terminal "leaves" had hyperkalemia probabilities of 0.2 to 7.2%. The hypokalemia tree had 4 nodes and a c-statistic of 0.76. The hypokalemia tree included nodes defined by prior potassium results, and the 4 terminal leaves had hypokalemia probabilities of 0.3 to 17.6%. Individuals with a recent potassium between 4.0 and 5.0 mEq/L, eGFR ≥ 45 mL/min/1.73m², and no hypokalemia in the previous year had a < 1% rate of either hypokalemia or hyperkalemia.

CONCLUSIONS

The yield of routine serum potassium testing may be low in individuals with a recent serum potassium between 4.0 and 5.0 mEq/L, eGFR ≥ 45 mL/min/1.73m², and no recent history of hypokalemia. We did not examine the effect of recent changes in clinical condition or medications on acute potassium changes.

Developing a Regional Distributed Data Network for Surveillance of Chronic Health Conditions: The Colorado Health Observation Regional Data Service

Electronic health records (EHRs) provide an alternative to traditional public health surveillance surveys and administrative data for measuring the prevalence and impact of chronic health conditions in populations. As the infrastructure for secondary use of EHR data improves, many stakeholders are poised to benefit from data partnerships for regional access to information. Electronic health records can be transformed into a common data model that facilitates data sharing across multiple organizations and allows data to be used for surveillance. The Colorado Health Observation Regional Data Service, a regional distributed data network, has assembled diverse data partnerships, flexible infrastructure, and transparent governance practices to better understand the health of communities through EHR-based, public health surveillance. This article describes attributes of regional distributed data networks using EHR data and the history and design of Colorado Health Observation Regional Data Service as an emerging public health surveillance tool for chronic health conditions. Colorado Health Observation Regional Data Service and our experience may serve as a model for other regions interested in similar surveillance efforts. While benefits from EHR-based surveillance are described, a number of technology, partnership, and value proposition challenges remain.

Improving Antibiotic Prescribing for Pediatric Urinary Tract Infections in Outpatient Settings

OBJECTIVES

To determine if a multicomponent intervention was associated with increased use of first-line antibiotics (cephalexin or sulfamethoxazole and trimethoprim) among children with uncomplicated urinary tract infections (UTIs) in outpatient settings.

METHODS

The study was conducted at Kaiser Permanente Colorado, a large health care organization with ∼127 000 members <18 years of age. After conducting a gap analysis, an intervention was developed to target key drivers of antibiotic prescribing for pediatric UTIs. Intervention activities included development of new local clinical guidelines, a live case-based educational session, pre- and postsession e-mailed knowledge assessments, and a new UTI-specific order set within the electronic health record. Most activities were implemented on April 26, 2017. The study design was an interrupted time series comparing antibiotic prescribing for UTIs before versus after the implementation date. Infants <60 days old and children with complex urologic or neurologic conditions were excluded.

RESULTS

During January 2014 to September 2018, 2142 incident outpatient UTIs were identified (1636 preintervention and 506 postintervention). Pyelonephritis was diagnosed for 7.6% of cases. Adjusted for clustering of UTIs within clinicians, the proportion of UTIs treated with first-line antibiotics increased from 43.4% preintervention to 62.4% postintervention (P < .0001). The use of cephalexin (first-line, narrow spectrum) increased from 28.9% preintervention to 53.0% postintervention (P < .0001). The use of cefixime (second-line, broad spectrum) decreased from 17.3% preintervention to 2.6% postintervention (P < .0001). Changes in prescribing practices persisted through the end of the study period.

CONCLUSIONS

A multicomponent intervention with educational and process-improvement elements was associated with a sustained change in antibiotic prescribing for uncomplicated pediatric UTIs.

Patient Navigation: Addressing Social Challenges in Dialysis Patients

Members of racial and ethnic minority groups make up nearly 50% of US patients with end-stage kidney disease and face a disproportionate burden of socioeconomic challenges (ie, low income, job insecurity, low educational attainment, housing instability, and communication challenges) compared with non-Hispanic whites. Patients with end-stage kidney disease who face social challenges often have poor patient-centered and clinical outcomes. These challenges may have a negative impact on quality-of-care performance measures for dialysis facilities caring for primarily minority and low-income patients. One path toward improving outcomes for this group is to develop culturally tailored interventions that provide individualized support, potentially improving patient-centered, clinical, and health system outcomes by addressing social challenges. One such approach is using community-based culturally and linguistically concordant patient navigators, who can serve as a bridge between the patient and the health care system. Evidence points to the effectiveness of patient navigators in the provision of cancer care and, to a lesser extent, caring for people with chronic kidney disease and those who have undergone kidney transplantation. However, little is known about the effectiveness of patient navigators in the care of patients with kidney failure receiving dialysis, who experience a number of remediable social challenges.

Implementation of Recommendations for Long-Acting Contraception Among Women Aged 13 to 18 Years in Primary Care

OBJECTIVE

Clinical specialty societies recommend long-acting reversible contraceptives (LARCs) as first-line contraception for adolescent women. We evaluated whether a combined educational and process improvement intervention enhanced LARC placement in primary care within an integrated health care system.

METHODS

The intervention included journal clubs, live continuing education, point-of-care guidelines, and new patient materials. We conducted a retrospective cohort study across 3 time periods: baseline (January 2013-September 2015), early implementation (October 2015-March 2016), and full implementation (April 2016-June 2017). The primary outcome was the proportion of LARCs placed by primary care clinicians among women aged 13 to 18 years compared with gynecology clinicians.

RESULTS

Kaiser Foundation Health Plan of Colorado cared for approximately 20,000 women aged 13 to 18 years in each calendar quarter between 2013 and 2017. Overall, LARC placement increased from 7.0 per 1000 members per quarter at baseline to 13.0 per 1000 during the full intervention. Primary care clinicians placed 6.2% of all LARCs in 2013, increasing to 32.1% by 2017 (P < .001), including 45.5% of contraceptive implants. Clinicians who attended educational sessions were more likely to adopt LARCs than those who did not (17.9% vs 6.4% respectively, P = .009). Neither overall LARC placement rates (relative risk, 1.9; 95% confidence interval, 0.7-5.6) nor contraceptive implant rates (relative risk, 3.0; 95% confidence interval, 0.9-9.8) increased significantly in clinicians who attended educational activities.

CONCLUSIONS

This multimodal intervention was associated with increased LARC placement for adolescent women in primary care. The combination of education and process improvement is a promising strategy to promote clinician behavior change.

An Interactive Voice Response and Text Message Intervention to Improve Blood Pressure Control Among Individuals With Hypertension Receiving Care at an Urban Indian Health Organization: Protocol and Baseline Characteristics of a Pragmatic Randomized Controlled Trial

Background

Efficient and effective strategies for treating chronic health conditions such as hypertension are particularly needed for under-resourced clinics such as Urban Indian Health Organizations (UIHOs).

Objective

The objective of the Controlling Blood Pressure Trial is to assess the impact of an interactive voice response and text message (IVR-T) intervention compared with usual care among individuals with hypertension receiving care at a UIHO in Albuquerque, New Mexico. This manuscript presents the baseline characteristics of individuals enrolled in the trial and compares their characteristics with those in the hypertension registry who did not enroll in the trial.

Methods

A hypertension registry developed from the clinic’s electronic health record was used for recruitment. Potentially eligible participants were contacted by letter and then by phone. Those who expressed interest completed an in-person baseline visit that included a baseline survey and blood pressure measurement using standardized procedures. Individuals randomized to the intervention group could opt to receive either automated text messages or automated phone calls in either English or Spanish. The messages include reminders of upcoming appointments at First Nations Community HealthSource, requests to reschedule recently missed appointments, monthly reminders to refill medications, and weekly motivational messages to encourage self-care, appointment keeping, and medication taking for hypertension. Individuals in the IVR-T arm could opt to nominate a care partner to also receive notices of upcoming and missed appointments. Individuals in the IVR-T arm were also offered a home blood pressure monitor. Follow-up visits will be conducted at 6 months and 12 months.

Results

Over a 9.5-month period from April 2017 to January 2018, 295 participants were enrolled from a recruitment list of 1497 individuals. The enrolled cohort had a mean age of 53 years, was 25.1% (74/295) American Indian or Alaska Native and 51.9% (153/295) Hispanic, and 39.0% (115/295) had a baseline blood pressure greater than or equal to 140/90 mmHg. Overall, the differences between those enrolled in the trial and patients with hypertension who were ineligible, those who could not be reached, or those who chose not to enroll were minimal. Enrolled individuals had a slightly lower blood pressure (129/77 mmHg vs 132/79 mmHg; P=.04 for systolic blood pressure and P=.01 for diastolic blood pressure), were more likely to self-pay for their care (26% vs 10%; P<.001), and had a more recent primary care visit (164 days vs 231 days; P<.001). The enrolled cohort reported a high prevalence of poor health, low socioeconomic status, and high levels of basic material needs.

Conclusions

The Controlling Blood Pressure Trial has successfully enrolled a representative sample of individuals receiving health care at a UIHO. Trial follow-up will conclude in February 2019.

Trial Registration

ClinicalTrials.gov NCT03135405; http://clinicaltrials.gov/ct2/show/NCT03135405 (Archived by WebCite http://www.webcitation.org/76H2B4SO6)

International Registered Report Identifier (IRRID)

DERR1-10.2196/11794

The longitudinal relationship between food insecurity in older adults with diabetes and emergency department visits, hospitalizations, hemoglobin A1c, and medication adherence

AIMS

To examine the relationship between food insecurity and emergency department (ED) visits, hospitalizations, A1c, and diabetes medication adherence over one year of follow-up among individuals >65 years with diabetes mellitus.

METHODS

We conducted a longitudinal cohort study of adults >65 years with diabetes who did (n = 742) or did not (n = 2226) report food insecurity at baseline. We used conditional logistic regression for the ED visits or hospitalization outcomes, and mixed effects models for A1c and non-insulin diabetes medication adherence.

RESULTS

In bivariate analyses, individuals with food insecurity were more likely to have an ED visit (OR = 1.40, 95% CI 1.15-1.72) or hospitalization (OR = 1.41, 95% CI 1.11-1.78) in the year after the food security assessment. In addition, A1c was higher (7.5% vs. 7.2%, p < 0.001). There was no difference in medication adherence. These differences persisted with adjustment for basic demographic and clinical characteristics, but were attenuated with further adjustment for socioeconomic status.

CONCLUSIONS

Differences in diabetes outcomes by food insecurity status were attenuated by adjustment for socioeconomic status. Adverse outcomes in individuals with diabetes and food insecurity may be driven by effects of food insecurity per se or be mediated by a constellation of basic resource needs or lower socioeconomic status.

Using Values Affirmation to Reduce the Effects of Stereotype Threat on Hypertension Disparities: Protocol for the Multicenter Randomized Hypertension and Values (HYVALUE) Trial

Background

Medication nonadherence is a significant, modifiable contributor to uncontrolled hypertension. Stereotype threat may contribute to racial disparities in adherence by hindering a patient’s ability to actively engage during a clinical encounter, resulting in reduced activation to adhere to prescribed therapies.

Objective

The Hypertension and Values (HYVALUE) trial aims to examine whether a values-affirmation intervention improves medication adherence (primary outcome) by targeting racial stereotype threat.

Methods

The HYVALUE trial is a patient-level, blinded randomized controlled trial comparing a brief values-affirmation writing exercise with a control writing exercise among black and white patients with uncontrolled hypertension. We are recruiting patients from 3 large health systems in the United States. The primary outcome is patients’ adherence to antihypertensive medications, with secondary outcomes of systolic and diastolic blood pressure over time, time for which blood pressure is under control, and treatment intensification. We are comparing the effects of the intervention among blacks and whites, exploring possible moderators (ie, patients’ prior experiences of discrimination and clinician racial bias) and mediators (ie, patient activation) of intervention effects on outcomes.

Results

This study was funded by the National Heart, Lung, and Blood Institute. Enrollment and follow-up are ongoing and data analysis is expected to begin in late 2020. Planned enrollment is 1130 patients. On the basis of evidence supporting the effectiveness of values affirmation in educational settings and our pilot work demonstrating improved patient-clinician communication, we hypothesize that values affirmation disrupts the negative effects of stereotype threat on the clinical interaction and can reduce racial disparities in medication adherence and subsequent health outcomes.

Conclusions

The HYVALUE study moves beyond documentation of race-based health disparities toward testing an intervention. We focus on a medical condition—hypertension, which is arguably the greatest contributor to mortality disparities for black patients. If successful, this study will be the first to provide evidence for a low-resource intervention that has the potential to substantially reduce health care disparities across a wide range of health care conditions and populations.

Trial Registration

ClinicalTrials.gov NCT03028597; https://clinicaltrials.gov/ct2/show/NCT03028597 (Archived by WebCite at http://www.webcitation.org/72vcZMzAB).

International Registered Report Identifier (IRRID)

DERR1-10.2196/12498

Peer Navigator Intervention for Latinos on Hemodialysis: A Single-Arm Clinical Trial

Background: Latinos with end-stage renal disease (ESRD) have worse mental and kidney composite health-related quality of life (HRQOL) scores compared to non-Latino ESRD patients. Latino ESRD patients uniquely report that social factors (e.g., lack of care coordination, food insecurity, and low health literacy) and mental health influence their HRQOL. We developed a culturally tailored peer navigator (PN) intervention to improve the HRQOL of Latinos on hemodialysis. Objective: To determine the feasibility of the PN intervention. Design: Single-arm prospective study. The PN provided individualized support with advance care planning, care coordination, and counseling about the importance of diet and mental health. Setting and Participants: Latino with ESRD receiving scheduled outpatient thrice-weekly hemodialysis or reliant on emergency-only hemodialysis in Denver. Main measures: Recruitment, retention rates, data completeness, intervention dose, patient- and staff-reported satisfaction with the intervention. Results: Of 49 eligible patients, 40 (82%) agreed to participate. The majority of participants received scheduled outpatient hemodialysis (75%), 20 were women (50%), with a mean (standard deviation [SD]) age of 56 (13) years. No participants withdrew from the intervention. One participant died. The mean (SD) number of PN visits per participant was 7 (2) and the mean (SD) length of the visits was 97 minutes (49). The majority of visits took place at the hemodialysis facility (59%) and home (27%). The vast majority of participants reported that the PN improved their quality of life as a patient on hemodialysis (95%). Conclusions: The PN intervention achieved feasibility goals and was well received by participants.

The corona contracts in a black-hole transient

The geometry of the accretion flow around stellar-mass black holes can change on timescales of days to months^1-3. When a black hole emerges from quiescence (that is, it 'turns on' after accreting material from its companion) it has a very hard (high-energy) X-ray spectrum produced by a hot corona^4,5 positioned above its accretion disk, and then transitions to a soft (lower-energy) spectrum dominated by emission from the geometrically thin accretion disk, which extends to the innermost stable circular orbit^6,7. Much debate persists over how this transition occurs and whether it is driven largely by a reduction in the truncation radius of the disk^8,9 or by a reduction in the spatial extent of the corona^10,11. Observations of X-ray reverberation lags in supermassive black-hole systems^12,13 suggest that the corona is compact and that the disk extends nearly to the central black hole^14,15. Observations of stellar-mass black holes, however, reveal equivalent (mass-scaled) reverberation lags that are much larger¹⁶, leading to the suggestion that the accretion disk in the hard-X-ray state of stellar-mass black holes is truncated at a few hundreds of gravitational radii from the black hole^17,18. Here we report X-ray observations of the black-hole transient MAXI J1820+070^19,20. We find that the reverberation time lags between the continuum-emitting corona and the irradiated accretion disk are 6 to 20 times shorter than previously seen. The timescale of the reverberation lags shortens by an order of magnitude over a period of weeks, whereas the shape of the broadened iron K emission line remains remarkably constant. This suggests a reduction in the spatial extent of the corona, rather than a change in the inner edge of the accretion disk.

Optimizing number and timing of appointment reminders: a randomized trial

OBJECTIVES

To compare missed appointment rates for patients receiving a single reminder either 3 days prior to a primary care visit, 1 day prior to the visit, or both 3 days and 1 day prior to the visit.

STUDY DESIGN

Three-armed randomized controlled trial.

METHODS

Text messages or interactive voice response calls were sent to patients with appointments at 25 primary care clinics in an integrated delivery system. A multivariable prediction model was developed to identify patients at high risk of missing appointments, based on prior appointment-keeping history and other variables from electronic health records.

RESULTS

Among 54,066 randomized patients, those who received reminders both 3 days and 1 day prior to the visit were less likely to miss their appointment than those who received only a 3-day or 1-day reminder (4.4% vs 5.8% vs 5.3%, respectively; P <.001). In patients at high risk, 20.5% of those who received 2 reminders missed their visit, compared with 25.0% and 24.2% of those with only 3-day or 1-day reminders, respectively (P <.001). Visit satisfaction was unaffected by providing an additional reminder.

CONCLUSIONS

Two automated reminders were more effective than 1 in reducing missed appointments and did not reduce visit satisfaction. A predictive model based on clinical characteristics and prior appointment history can accurately identify patients who are at highest risk of missing appointments. These individuals may benefit more from multiple reminders, but additional strategies are necessary to further reduce their rates of missed appointments.

Add-On Antihypertensive Medications to Angiotensin-Aldosterone System Blockers in Diabetes: A Comparative Effectiveness Study

BACKGROUND AND OBJECTIVES

In individuals with diabetes, the comparative effectiveness of add-on antihypertensive medications added to an angiotensin-converting enzyme inhibitor or angiotensin II receptor blocker on the risk of significant kidney events is unknown.

DESIGN, SETTING PARTICIPANTS, & MEASUREMENTS

We used an observational, multicenter cohort of 21,897 individuals with diabetes to compare individuals who added β-blockers, dihydropyridine calcium channel blockers, loop diuretics, or thiazide diuretics to angiotensin-converting enzyme inhibitors or angiotensin II receptor blockers. We examined the hazard of significant kidney events, cardiovascular events, and death using Cox proportional hazard models with propensity score weighting. The composite significant kidney event end point was defined as the first occurrence of a ≥30% decline in eGFR to an eGFR<60 ml/min per 1.73 m2, initiation of dialysis, or kidney transplant. The composite cardiovascular event end point was defined as the first occurrence of hospitalization for acute myocardial infarction, acute coronary syndrome, stroke, or congestive heart failure; coronary artery bypass grafting; or percutaneous coronary intervention, and it was only examined in those free of cardiovascular disease at baseline.

RESULTS

Over a maximum of 5 years, there were 4707 significant kidney events, 1498 deaths, and 818 cardiovascular events. Compared with thiazide diuretics, hazard ratios for significant kidney events for β-blockers, calcium channel blockers, and loop diuretics were 0.81 (95% confidence interval, 0.74 to 0.89), 0.67 (95% confidence interval, 0.58 to 0.78), and 1.19 (95% confidence interval, 1.00 to 1.41), respectively. Compared with thiazide diuretics, hazard ratios of mortality for β-blockers, calcium channel blockers, and loop diuretics were 1.19 (95% confidence interval, 0.97 to 1.44), 0.73 (95% confidence interval, 0.52 to 1.03), and 1.67 (95% confidence interval, 1.31 to 2.13), respectively. Compared with thiazide diuretics, hazard ratios of cardiovascular events for β-blockers, calcium channel blockers, and loop diuretics compared with thiazide diuretics were 1.65 (95% confidence interval, 1.39 to 1.96), 1.05 (95% confidence interval, 0.80 to 1.39), and 1.55 (95% confidence interval, 1.05 to 2.27), respectively.

CONCLUSIONS

Compared with thiazide diuretics, calcium channel blockers were associated with a lower risk of significant kidney events and a similar risk of cardiovascular events.

Food Insecurity in Older Adults in an Integrated Health Care System

OBJECTIVES

To estimate food insecurity prevalence and develop a statistical prediction model for food insecurity.

DESIGN

Retrospective cohort study.

SETTING

Kaiser Permanente Colorado.

PARTICIPANTS

Adult members who completed a pre-Medicare Annual Wellness Visit survey.

MEASUREMENTS

Food insecurity was assessed using a single screening question. Sociodemographic and clinical characteristics from electronic health records and self-reported characteristics from the survey were used to develop the prediction model.

RESULTS

Of 130,208 older adult members between January 2012 and December 2015, 50,097 (38.5%) completed food insecurity screening, 2,859 of whom (5.7% of respondents) reported food insecurity. The prevalence of food insecurity was 10.0% or greater among individuals who were black or Hispanic, had less than high school education, had Medicaid insurance, were extremely obese, had poor health status or quality of life, had depression or anxiety, had impairments in specific activities of daily living, had other nutritional risk factors, or were socially isolated (all p<.001). A multivariable model based on these and other characteristics showed moderate discrimination (c-statistic = 0.74) between individuals with food insecurity and those without and 14.3% of individuals in the highest quintile of risk reported food insecurity.

CONCLUSION

Food insecurity is prevalent even in older adults with private-sector healthcare coverage. Specific individual characteristics, and a model based on those characteristics, can identify older adults at higher risk of food insecurity. System-level interventions will be necessary to connect older adults with community-based food resources.

Lessons Learned from Implementation of the Food Insecurity Screening and Referral Program at Kaiser Permanente Colorado

Traditionally, health care systems have addressed gaps in patients' diet quality with programs that provide dietary counseling and education, without addressing food security. However, health care systems increasingly recognize the need to address food security to effectively support population health and the prevention and management of diet-sensitive chronic illnesses. Numerous health care systems have implemented screening programs to identify food insecurity in their patients and to refer them to community food resources to support food security. This article describes barriers encountered and lessons learned from implementation and expansion of the Kaiser Permanente Colorado's clinical food insecurity screening and referral program, which operates in collaboration with a statewide organization (Hunger Free Colorado) to manage clinic-to-community referrals. The immediate goals of clinical screening interventions described in this article are to identify households experiencing food insecurity, to connect them to sustainable (federal) and emergency (community-based) food resources, to alleviate food insecurity, and to improve dietary quality. Additional goals are to improve health outcomes, to decrease health care utilization, to improve patient satisfaction, and to better engage patients in their care.

A Multilevel Analysis of Individual, Health System, and Neighborhood Factors Associated with Depression within a Large Metropolitan Area

Depression prevalence is known to vary by individual factors (gender, age, race, medical comorbidities) and by neighborhood factors (neighborhood deprivation). However, the combination of individual- and neighborhood-level data is rarely available to assess their relative contribution to variation in depression across neighborhoods. We geocoded depression diagnosis and demographic data from electronic health records for 165,600 patients seen in two large health systems serving the Denver population (Kaiser Permanente and Denver Health) to Denver's 144 census tracts, and combined these data with indices of neighborhood deprivation obtained from the American Community Survey. Non-linear mixed models examined the relationships between depression rates and individual and census tract variables, stratified by health system. We found higher depression rates associated with greater age, female gender, white race, medical comorbidities, and with lower rates of home owner occupancy, residential stability, and higher educational attainment, but not with economic disadvantage. Among the Denver Health cohort, higher depression rates were associated with higher crime rates and a lower percent of foreign born residents and single mother households. Our findings suggest that individual factors had the strongest associations with depression. Neighborhood risk factors associated with depression point to low community cohesion, while the role of education is more complex. Among the Denver Health cohort, language and cultural barriers and competing priorities may attenuate the recognition and treatment of depression.