Canadian Health and Care Mall: Tablest for Asthma Treatment and Patients Monitoring

December 14, 2015 Category: Asthma Health Care

asthma care

Poor Provider/Patient Communication May Be More Common for Minority Patients

National guidelines for asthma care contained in the 1997 National Heart, Lung, and Blood Institute-sponsored expert panel report highlight the importance of active partnership between patients and physicians. This partnership is highly relevant for effective communication about asthma symptoms, medications, and appropriate self-management (eg, education to avoid triggers and intensify medication regimens during exacerbations). However, a number of studies have reported that differences in race and ethnicity between patients and their providers can represent important cultural barriers to effective communication and partnerships for care. Patient factors such as language barriers, low health literacy and educational status, and lack of self-efficacy, which may be more prevalent among low-income minorities, may contribute to the risk of poor patient/ provider communication in this population. Physician factors that may contribute to impaired communication between minority patients and their providers (often from dissimilar race/ethnicity as their patients) include unintentional racial biases in interpreting patient symptoms and decision making, and poor provider understanding of patients ethnic and cultural disease models and expectations from clinical encounters. Despite the fact that the great majority of health-care providers abhor prejudice and make every effort to deliver health care that is fair and equal to all patients, the Institute of Medicine report concluded that the preponderance of evidence suggests that inadvertent bias, stereotyping, prejudice, and clinical uncertainly are likely important contributing factors to Canadian health-care disparities, Finally, health-care system factors may also contribute to poor patient/provider communication, for example, by placing overly restrictive time constraints on the health-care encounter or by failing to have culturally and literacy-appropriate educational materials available for use by health-care professionals.

A previous report showed that physician attitudes toward their asthma patients may influence both the quality of communication and the quality of asthma care. Resulting impairments in communication may thus contribute to ineffectual partnerships for care between patients and their providers in managing chronic illnesses, leading to disparities in health outcomes from chronic disease such as asthma. In a study of office visits in primary care, Johnson et al, showed that physicians were more verbally dominant and engaged in less patient-centered communication with African-American than white patients. Positive affect was less apparent also for African Americans and their doctors compared with whites and their doctors.

The idea that communication is somehow less adequate uniformly across minority patients is not supported by all available evidence. A study by Clark et al of low-income, urban parents and children found that mothers who prefer to speak Spanish communicated more frequently about asthma, more about home treatments for asthma, and they had higher levels of management of recent asthma attacks. While this single study does not reflect a consistent message from the published literature about minorities, it is a reminder that some ethnic groups may have certain advantages in terms of communication.

 inappropriate therapy

Poor Communication May Lead to an Underestimation of Asthma Severity for Minority Patients

In the United States, undertreatment or inappropriate therapy contributes to the excess health burden from asthma. According to national guidelines, assignment of care should be based on assessment of severity of asthma. Previous research has shown that when this estimate is inaccurate, care suffers, and underestimation of severity leads to less intense, suboptimal care. Assessment of severity is complex, and since it depends on patient-reported symptoms, it requires good provider/patient communication.

To help providers bridge the gap between current knowledge regarding effective asthma therapies and asthma management, the 1997 expert panel report outlines a general approach for the diagnosis and management of asthma. The resulting guidelines recommend an assessment of disease severity using patient-reported symptoms and objective measures of lung function (eg, peak flowmeter, spirometry) and to appropriately employ a step-wise approach to asthma care that reserves increasingly intensive therapy for patients with more severe disease (poorer symptom control). Objective measures of lung function, however, are infrequently used, leaving clinicians to primarily depend on patient-reported symptoms when making decisions about titrating asthma therapy. However, the severity of breathlessness reported by patients with asthma varies substantially for any given degree of airflow obstruction, suggesting that relying on symptoms alone may lead to inaccurate assessment of disease severity. Indeed, a study of 90 urban, predominantly (92%) minority children with asthma found that providers frequently (60%) underestimated symptom severity, and that underestimates of disease severity were associated with significantly lower rates of use of medications that are effective for asthma control. In this small study, minority children were more likely to be misclassified, although differences did not reach the threshold for statistical significance (African-American vs white children: odds ratio, 2.31, p = 0.38; Hispanic vs non-Hispanic children: odds ratio, 1.21, p = 0.78). In a recent cross-sectional study of 6,236 patients with asthma enrolled in 15 managed care organizations in the United States, Okelo et al tested the hypotheses that underestimation of asthma severity by physicians is more frequent among blacks than whites; and among black patients, underestimation of asthma severity is associated with poorer quality of asthma care and ratings of physician. The study found that physicians more often underestimated the severity of blacks than whites (65% vs 59%, p = 0.05); and among black patients, this underestimation was associated with poorer quality of asthma care, including being less likely to use ICS on a daily basis (13% vs 20%, p < 0.05), and less likely to have been instructed by their physician on how to manage flare-ups in their asthma (33% vs 41%, p < 0.0001). In addition, black patients whose physicians underestimated their asthma severity also gave lower ratings for quality of asthma care (p = 0.01) and physician communication (p = 0.04). The authors concluded that poor patient/provider communication about asthma severity may be a factor in racial disparities in asthma care.

Poor Patient/Provider CommunicationIf Canadian health-care providers are partly responsible for underestimation of asthma severity, it may be that they do not receive, elicit, or understand information about severity as well when caring for a minority patient. You may know more about asthma treatment on Canadian health care mall and order necessary drugs there. Also, race disparities in communication and assessment of severity may in part reflect ethnic differences in how patients describe asthma-related symptoms to their providers. For example, a study found that African-American adults use primarily upper airway word descriptors (“tight throat”), while whites report lower airway descriptors (“deep breath”) when describing breathlessness. Taken together, these observations in children and adults with asthma indicate that assessments of asthma severity may be frequently inaccurate and contribute to poor quality of asthma care, particularly among minority populations.

Patient Factors Contributing to Poor Patient/Provider Communication

Health Literacy: Literacy and, in particular, health-care literacy are needed for effective communication by patients and health-care providers, Health-care literacy has been defined as follows: “The degree to which individuals have the capacity to obtain, process, and understand basic health information and services needed to make appropriate health decisions.” Clearly, Canadian health-care literacy is needed to read information about health, to follow written instructions, to calculate correct doses of medications, and to make decisions about health. Some studies have examined demographic associations with health-care literacy and have measured low literacy in certain ethnic and racial minority groups and Spanish speakers. A number of studies in other chronic diseases have suggested that poor health literacy can contribute to patient misunderstanding of health information, inadequate adherence, and poor health outcomes. To date, there is limited research examining the extent to which health-care literacy is present in minority populations with asthma, nor the extent to which it may contribute to care problems and poor outcomes. In a study by Williams et al of 483 patients presenting to an urban ED and asthma clinic, most subjects were African American. In this study group, only 27% read at the high school level. Asthma knowledge and proper MDI use were directly related to reading levels, suggesting that both self-management skills and knowledge can be affected by low literacy in asthma. Similarly, Paasche-Orlow et al found that inadequate health literacy was associated with lower asthma medication knowledge and worse MDI technique among inner-city patients hospitalized for an asthma exacerbation. On a promising note, these investigators also observed that these low-literacy patients were able to successfully learn and retain information about their asthma discharge regimen and MDI technique after receiving one-on-one, 30-min, guideline-based, written and oral instruction.

Health BeliefsHealth Beliefs: Patient health beliefs that are divergent from those of the Canadian health-care provider can affect health care through competing therapies, fear of the health-care system, or distrust of prescribed therapies. For example, Apter et al found that among low-income minority patients, beliefs about the effectiveness and convenience of their asthma medications, as well as their perception of the quality of their communication with their clinician, were associated with poorer adherence with asthma controller therapy. Patient worries or concerns about using a daily asthma controller medication when they are asymptomatic may lead patients to use less medication than was prescribed. Riekert et al found that African-American mothers who expressed more negative health beliefs about the value of asthma controller medications were more likely to be discordant with their child’s physician about whether the child was prescribed daily ICS therapy for asthma. However, despite the fact that lay beliefs, culture, and folk wisdom about asthma and treatment can influence patient and family acceptance of asthma therapies, these topics are rarely discussed in a conventional clinical encounter. This absence of discussion may lead to assignment of treatments to patients that they are unwilling or unable to use effectively.

Patient Adherence: While underprescribing contributes to low rates of ICS use in urban minority populations, findings from a number of studies indicate that patient adherence to daily ICS therapy is poor even when prescribed. Adherence to effective therapies such as ICS is necessary to reduce morbidity and mortality from asthma. Given the benefits of regular ICS use for patients with persistent asthma symptoms, the clinical implication of nonadherence to ICS therapy is excess morbidity and mortality from asthma in inner-city, predominantly minority populations. A number of stud-ies investigating asthma medication use in inner-city minority populations have found alarming rates of overreliance on symptom-driven management (ie, bronchodilators during symptomatic episodes), rather than daily use of controller medications (eg. ICS) to treat the underlying disease. In a study of adults admitted to an inner-city hospital for an asthma exacerbation, for example, 85% reported use of bronchodilators, while only 39% reported longterm ICS use. At another inner-city hospital, patients with a history of asthma-related clinic or ED visits were two to eight times more likely to fill prescriptions for bronchodilators than ICS, with overreliance on bronchodilators especially evident in African Americans compared to whites. Similarly, Krishnan et al found that even after individualized asthma education instruction and the provision of free medications, inner-city patients discharged after an asthma exacerbation were only 50% adherent with prescribed ICS therapy by 3 months.

Studies> suggest that patient/physician communication about adherence is often absent or inadequate, and that the clinical judgment of health-care providers is a poor tool for assessing patient adherence. The frequent failure of Canadian health-care providers to evaluate the level of patient adherence with therapy, patient understanding of treatments or regimens, or discuss potential barriers to adherence such as cost of medications, health beliefs, or side effects could unwittingly contribute to poor adherence and increased health disparities.

Physician Factors Contributing

Physician Factors Contributing to Patient/Provider Communication

Physician Expectations: It has been well recognized that physicians use shortcuts, or heuristics, when faced with uncertainty. Physicians work within a context that is bounded by real-world constraints, including limited time, finite resources, and considerable uncertainty about information that is required to make judgments and recommendations. As pointed out by the Institute of Medicine report on unequal care, physicians bring expectations about the likelihood of an illness or its severity based on what they already believe and what they can observe about a patient (including race). If physicians are less able to interpret information from minority patients, they may depend more on their prior expectations about disease and disease severity, and make different diagnostic or treatment decisions than they would otherwise, even if faced with similar information. Uncertainty can lead to care for minority patients that is either more or less frequent than otherwise expected, but the fundamental problem is a poor match of care to needs. Little is known about this phenomenon specifically for asthma.

Bias, Stereotyping: According to a review by Burgess et al, there are fundamental human information processing mechanisms that lead to an inconsistency between a provider’s desire to provide equal treatment and the way that clinical decision making is influenced by a patient’s race and ethnicity. The authors pointed out that unconscious reactions of providers to minorities may be inconsistent with their conscious beliefs, that providers may unconsciously behave in ways that lead to confirmation of stereotypes, and that stereotypes may influence the way that providers interpret behaviors and clinical findings. Indeed, there is evidence that some physicians believe blacks are less compliant with treatment, which may lead to less offered care. While there is evidence that physicians use stereotypes when treating patients with asthma, there are not yet studies that have shown that bias and stereotyping actually lead to different care in patients with asthma.

Physician Race: There is evidence that primary care office visits differ with regard to communication when patient/physician race are concordant or discordant. In recent study by Cooper et al, race-concordant visits were found to be about 2-min longer and had higher ratings of patient positive affect, patient satisfaction, and patient ratings of their physicians as participatory. However, these factors were not explained by measures of patient-centered communication, which suggests that other factors (eg, attitudes) may be important. It is not clear whether discordance of patient and physician race/ethnicity plays a significant role in asthma care.

Communication Skills and Style: A significant body of research has documented the contributing role of physician communication skills and style to patient satisfaction, adherence, and health-care utilization. For example, communication styles that reflect qualities such as physician empathy have been shown to facilitate communication, while brusqueness, dominance, or the exclusive use of closed-ended questioning can impede communication. In a study that was part of the National Cooperative Inner-City Asthma Study, Wissow and colleagues examined characteristics of patient/provider communication during ED care of children with asthma. In this study of 104 children aged 4 to 9 years and their guardians, the investigators found that physicians tended to dominate the conversations and to infrequently include the child in the discussion. Only 43% were moderately or very satisfied with the extent to which the doctor had asked their opinion about treatment, and only 40% were moderately or very satisfied with the extent to which they had been encouraged to talk about their worries. Physicians whose communication style was more parent/patient centered were rated as more informative, displaying more partnership, and received higher ratings of satisfaction with the “doctor’s job.”

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