Melissa A. Valerio

Effectiveness of a Community Health Worker Intervention Among African American and Latino Adults With Type 2 Diabetes: A Randomized Controlled Trial

OBJECTIVES We tested the effectiveness of a culturally tailored, behavioral theory-based community health worker intervention for improving glycemic control. METHODS We used a randomized, 6-month delayed control group design among 164 African American and Latino adult participants recruited from 2 health systems in Detroit, Michigan. Our study was guided by the principles of community-based participatory research. Hemoglobin A1c (HbA1c) level was the primary outcome measure. Using an empowerment-based approach, community health workers provided participants with diabetes self-management education and regular home visits, and accompanied them to a clinic visit during the 6-month intervention period. RESULTS Participants in the intervention group had a mean HbA1c value of 8.6% at baseline, which improved to a value of 7.8% at 6 months, for an adjusted change of -0.8 percentage points (P < .01). There was no change in mean HbA1c among the control group (8.5%). Intervention participants also had significantly greater improvements in self-reported diabetes understanding compared with the control group. CONCLUSIONS This study contributes to the growing evidence for the effectiveness of community health workers and their role in multidisciplinary teams engaged in culturally appropriate health care delivery.

Issues in identifying asthma and estimating prevalence in an urban school population

UNLABELLED This article first presents salient issues related to identifying children in urban schools who might benefit from asthma services. It discusses a brief questionnaire for identifying cases and problems in estimating asthma prevalence. Subsequently, results of case detection in 14 urban schools are presented and discussed in light of these issues. The questionnaire was employed with parents of 4,653 African-American children in Detroit. Results suggest that determining number, type, and frequency of symptoms may be necessary to ascertain prevalence of asthma. Using only number and type produced a rate of asthma of 25%. Adding frequency provided a more conservative estimate of 19%. About 9% of children exhibiting symptoms of asthma had no physician diagnosis. Only 25% with symptoms reflecting mild persistent, 35% with moderate persistent, and 26% with severe persistent disease had prescriptions for anti-inflammatory medicine. Further, 23% of children with asthma-like symptoms had no prescription for asthma medicine of any type. CONCLUSIONS (1) low-cost procedures can be used in schools to identify children with suspected undiagnosed and undertreated asthma; (2) prevalence estimates for asthma in the group of urban school children studied are among the highest in the United States; and (3) asthma is undertreated in this sample.

Health Literacy Measurement: An Inventory and Descriptive Summary of 51 Instruments

This article aimed to provide a descriptive review of the psychometric properties and conceptual dimensions of published health literacy measurement tools. PsycINFO and PubMed search from 1999 through 2013, review of the grey literature, and an environmental scan was conducted to identify health literacy measurement tools. For each tool, we evaluated the conceptual dimensions assessed, test parameters, and psychometric properties. Of the 51 tools identified, 26 measured general health literacy, and 15 were disease or content specific, and 10 aimed at specific populations. Most tools are performance based, require in-person administration, and are exclusively available in a pencil and paper testing mode. The tools assess 0 (proxy measure) to 9 of the 11 defined dimensions of health literacy. Reported administration times vary, from less than 1 to 60 minutes. Validation procedures for most of the tools are limited by inadequate power to ensure reliability across subgroups (i.e., race, age, ethnicity, and gender). The health literacy measurement tools currently available generally represent a narrow set of conceptual dimensions with limited modes of administration. Most of the tools lack information on key psychometric properties. Significant work is needed to establish important aspects of the construct, convergent, and predictive validity for many tools. As researchers develop new measures, inclusion of a full range of conceptual dimensions of health literacy, more representative sampling for testing, and additional modes of administration will allow a more refined and flexible approach to research in this field.

Adolescent health literacy: the importance of credible sources for online health information.

BACKGROUND Little research has examined adolescent health literacy and its relationship with online health information sources. The purpose of this study is to explore health literacy among a predominantly Hispanic adolescent population and to investigate whether exposure to a credible source of online health information, MedlinePlus(®), is associated with higher levels of health literacy. METHODS An online survey was administered to a cross-sectional random sample of high school students in South Texas. Self-reported sociodemographic characteristics and data on health-information-seeking behavior and exposure to MedlinePlus(®) were collected. Health literacy was assessed by eHEALS and the Newest Vital Sign (NVS). Linear and binary logistic regressions were completed. RESULTS Of the 261 students who completed the survey, 56% had heard of MedlinePlus(®), 52% had adequate levels of health literacy as measured by NVS, and the mean eHEALS score was 30.6 (possible range 8-40). Health literacy was positively associated with self-efficacy and seeking health information online. Exposure to MedlinePlus(®) was associated with higher eHealth literacy scores (p < .001) and increased the likelihood of having adequate health literacy (odds ratio: 2.1; 95% CI: 1.1, 4.1). CONCLUSION Exposure to a credible source of online health information is associated with higher levels of health literacy. The incorporation of a credible online health information resource into school health education curricula is a promising approach for promoting health literacy.

The role of behavioural theories in educational interventions for paediatric asthma

Controlling paediatric respiratory disease requires a significant change in the behaviour of all stakeholders: patient, family, clinician, community and health system. The good management of asthma by patients requires that they learn what works and does not work for them given their particular circumstances. Asthma interventions can help patients to improve their self-regulation and achieve better health status, quality of life and personal goals. Many asthma interventions do not, however, achieve change because they are not based on sound theories of behaviour. They fail to teach patients how to observe, judge and react appropriately to their change efforts. Successful interventions have been based on theoretical principles and have generally combined strategies for preventing and managing an asthma episode and managing the social and behavioural factors associated with the disease.

Blocks, ovals, or people? Icon type affects risk perceptions and recall of pictographs.

Background. Research has demonstrated that icon arrays (also called “pictographs”) are an effective method of communicating risk statistics and appear particularly useful to less numerate and less graphically literate people. Yet research is very limited regarding whether icon type affects how people interpret and remember these graphs. Methods. 1502 people age 35–75 from a demographically diverse online panel completed a cardiovascular risk calculator based on Framingham data using their actual age, weight, and other health data. Participants received their risk estimate in an icon array graphic that used 1 of 6 types of icons: rectangular blocks, filled ovals, smile/frown faces, an outline of a person’s head and shoulders, male/female “restroom” person icons (gender matched), or actual head-and-shoulder photographs of people of varied races (gender matched). In each icon array, blue icons represented cardiovascular events and gray icons represented those who would not experience an event. We measured perceived risk magnitude, approximate recall, and opinions about the icon arrays, as well as subjective numeracy and an abbreviated measure of graphical literacy. Results. Risk recall was significantly higher with more anthropomorphic icons (restroom icons, head outlines, and photos) than with other icon types, and participants rated restroom icons as most preferred. However, while restroom icons resulted in the highest correlations between perceived and actual risk among more numerate/graphically literate participants, they performed no better than other icon types among less numerate/graphically literate participants. Conclusions. Icon type influences both risk perceptions and risk recall, with restroom icons in particular resulting in improved outcomes. However, optimal icon types may depend on numeracy and/or graphical literacy skills.

Recommendations for Advancing Health Literacy Measurement

Health literacy has become a national priority in the United States. Although less is known about the rate, outcomes, and costs associated with health literacy globally relative to the United States, the subject has received increasing attention internationally as well. Definitions, conceptual models, and health literacy measures have proliferated in recent years, and consensus does not exist regarding which of these to use. This article offers the following 5 recommendations for setting a research agenda to advance the science of health literacy measurement: (a) develop a comprehensive unified conceptual framework, (b) leverage the measurement knowledge the field has gained thus far, (c) empirically test frameworks and measures using robust research methods, (d) use a tiered approach to measuring health literacy, and (e) advocate for ongoing research and dissemination. These recommendations seek to ensure clarity, rigor, and transparency as part of a systematic approach to health literacy measurement. Once these steps are taken, the field of health literacy can move forward more effectively.

Consideration of Shared Decision Making in Nursing: A Review of Clinicians' Perceptions and Interventions

As the number of individuals with chronic illness increases so has the need for strategies to enable nurses to engage them effectively in daily management of their conditions. Shared decision making between patients and nurses is one approach frequently discussed in the literature. This paper reviews recent studies of shared decision making and the meaning of findings for the nurse-patient relationship. Patients likely to prefer to engage in shared decision making are younger and have higher levels of education. However, there is a lack of evidence for the effect of shared decision making on patient outcomes. Further, studies are needed to examine shared decision making when the patient is a child. Nurses are professionally suited to engage their patients fully in treatment plans. More evidence for how shared decision making affects outcomes and how nurses can successfully achieve such engagement is needed.

Asthma Action Plans and Patient Satisfaction Among Women With Asthma

BACKGROUND Asthma action plans (AAPs) are a priority recommendation of the National Asthma Education and Prevention Program and have been shown to positively affect health outcomes. Patient satisfaction is an important clinical outcome, yet little is known about its association with receiving an AAP. This study examined the association between having an AAP and behaviors to keep asthma in control and patient satisfaction with care. METHODS The study design was a cross-sectional analysis of baseline data from a randomized trial evaluating a self-management program among 808 women with asthma. Participants reported demographic information, interactions with clinicians, whether they had an AAP and owned a peak flow meter, self-management behaviors, and symptoms. RESULTS The mean age of the participants was 48 ±13.6 years, 84% (n= 670) were satisfied with their asthma care, and 48% (n= 383) had a written AAP from their physician. Women not having an AAP were less likely to take asthma medication as prescribed [ x 2 (1) = 13.68, P , .001], to initiate a discussion about asthma with their physicians [ x 2 (1) = 26.35, P < .001], and to own a peak fl ow meter [ x 2 (1) =77.84, P < .001]. Adjusting for asthma control, income, and medical specialty,women who did not have an AAP were more likely to report dissatisfaction with their asthma care (OR, 2.07; 95% CI, 1.35-3.17; P < .001). CONCLUSIONS Women without an AAP were less likely to initiate discussions with their physicians,take medications as prescribed, and own a peak fl ow meter to monitor asthma, all considered important self-management behaviors. They were also less satisfied with their care. Not having an AAP may affect interactions between patient and physician and clinical outcomes.

Schools' Capacity to Help Low-Income, Minority Children to Manage Asthma.

This article describes the challenges and strengths of asthma management in 14 low-income, predominantly African American urban elementary schools serving more than 5,000 students. Asthma prevalence was 24.5%. Teachers, school principals, parents, and children described how asthma was managed at school. Data from classmates of students with asthma showed that they had moderate to high levels of information about the disease. Data from teachers indicated the great need for practical instruction on how they might effectively support a child with asthma in the classroom and on the playground. Principals raised concerns about expectations for the functioning of school staff and implementation of school policies especially related to asthma emergencies. Parents reported a range of problems their children face at school. Data from children with asthma showed that 75% believed asthma affected their schoolwork. Findings from this study should be useful to school personnel, health providers, and others who assist children and their families to manage asthma at school. Data suggest that making school nursing services available is warranted, given the impact of asthma on the school community.