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Results for “Medication Adherence”

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PubMed2001

Non-adherence in pediatric transplantation: a review of the existing literature.

The degree of medical adherence in pediatric solid-organ transplant recipients frequently correlates with the degree of psychological distress, family functioning, and the physiological side-effects of immunosuppressant medications. This article examines the current literature regarding each of these factors and proposes recommendations for increasing the medical compliance among childhood transplant recipients.

Family Relations↗

PubMed2002

Nonadherence with mood stabilizers: prevalence and predictors.

BACKGROUND: The prevalence of nonadherence with mood stabilizers ranges from about 18% to 52%. Only 1% of publications on mood stabilizers address this issue. This study aimed to explore the prevalence and predictors of nonadherence in a cohort of individuals with affective disorders receiving long-term treatment with mood stabilizers. METHOD: Subjects receiving lithium, carbamazepine, and/or valproate were identified from biochemistry laboratory data. Ninety-eight of these subjects had major depressive disorder (N = 20) or bipolar disorder (N = 78) (DSM-IV) and gave informed consent to participate in a structured clinical interview to assess their medication adherence and the factors that influenced it. RESULTS: Just under 50% of subjects (46/98) acknowledged some degree of medication nonadherence in the previous 2 years, and 32% (29/92) reported only partial adherence in the last month (missing 30% or more of their prescribed medication). Backward stepwise logistic regression demonstrated that partially adherent subjects were best distinguished from adherent subjects by a more frequent past history of nonadherence, denial of severity of illness, and greater duration of being prescribed a mood stabilizer. CONCLUSION: Rates of mood stabilizer nonadherence are high. Attitudes and behaviors are better predictors of nonadherence than side effects from medication. Clinicians need to inquire routinely about problems with adherence.

Adult↗

PubMed2006

Association of unmet needs for support services with medication use and adherence among HIV-infected individuals in the southeastern United States.

Unmet needs for services, such as housing and psychiatric treatment, are relatively common among HIV-infected individuals; however, the effects of different types of unmet needs on health-care outcomes are not well understood. This study describes unmet psychosocial needs and their relationship with health-care outcomes among individuals receiving HIV care in the southeastern US (n=526). We used multivariate logistic regression to examine the association of seven categories of unmet needs with HIV medication use and adherence. Most participants (84.5%) reported at least one service need in the past year. Nearly half (47%) of participants with service needs reported that at least one need was not met. Participants with one or more unmet needs were less likely to be taking any HIV medications (p = 0.007) and reported poorer medication adherence (p=0.013). The specific unmet needs for benefits (including Social Security, health insurance and prescription coverage) (p = 0.006) and a support group (p=0.040) were associated with being less likely to be taking any HIV medications. Unmet need for mental health-related counseling was associated with poorer medication adherence (p=0.003). Study findings regarding the high level of unmet need and the association of unmet need with poorer outcomes illustrate the importance of interventions to address these needs.

Adult↗

PubMedDate not supplied

Adherence to antipsychotic and nonpsychiatric medications in middle-aged and older patients with psychotic disorders.

OBJECTIVE: The prevalence and consequences of nonadherence to antipsychotic medications in schizophrenia and related psychotic disorders have been well described; however, little is known about adherence to medications for nonpsychiatric conditions in patients with psychotic disorders. We wished to determine medication adherence in nondemented middle-aged and older Veterans Affairs outpatients with schizophrenia or other psychotic disorders who had been prescribed oral medications for hypertension, hyperlipidemia, or diabetes. METHODS: Medication adherence was assessed by review of medication fill records for 76 patients aged 40 years and older who had been prescribed an oral antipsychotic in addition to an oral agent for hypertension (N = 60), hyperlipidemia (N = 28), or diabetes (N = 24). Up to 12 months of therapy was reviewed, and a compliant fill rate (the number of adherent fills in proportion to the total number of prescription fills) and cumulative mean gap ratio (the number of days when medication was unavailable in relation to the total number of days) were calculated for each medication. RESULTS: The 12-month mean compliant fill rates for antipsychotics, antihypertensives, antihyperlipidemics, and antidiabetics ranged from 52% to 64%. Nonpsychiatric medication adherence rates were similar in patients on typical vs. atypical antipsychotics and did not correlate significantly with antipsychotic adherence rates. CONCLUSIONS: Nonadherence rates were found to be equally problematic for both antipsychotic and nonpsychiatric medications in middle-aged and older patients with psychotic disorders. Interventions to improve adherence to both antipsychotic and nonpsychiatric medications are needed.

Adult↗

PubMed2003

Relations among asthma knowledge, treatment adherence, and outcome.

BACKGROUND: Asthma knowledge is frequently assumed to be a prerequisite for optimal asthma treatment. However, the validity of existing asthma knowledge questionnaires has not been rigorously examined, and no contemporary measure of asthma knowledge has received widespread acceptance. OBJECTIVE: To construct and examine the psychometric properties of an asthma knowledge instrument, and its association with demographic and psychosocial variables, asthma medication adherence, and treatment outcome. METHODS: A 25-item Asthma Knowledge Questionnaire was developed with input from national pediatric asthma experts. Parents of 155 children with asthma completed the Asthma Knowledge Questionnaire as well as demographic, family functioning, and home environment measures. Asthma outcomes and adherence with inhaled medication was measured across 12 months. RESULTS: Despite the many steps taken to develop a strong measure of asthma knowledge, reliability was relatively poor. There was also no association between asthma knowledge and treatment adherence or outcomes. Furthermore, asthma knowledge was not a unidimensional construct and was not a simple function of education. CONCLUSIONS: Findings from this study, in combination with previous studies of asthma knowledge questionnaires, suggest that the construction of a simple self-report asthma knowledge instrument for use as a primary outcome measure demonstrating mastery of asthma self-management skills may not be achievable.

Adolescent↗

PubMed2006

Use of depression education materials to improve treatment compliance of primary care patients.

In a collaborative effort between a managed behavioral health organization, a health maintenance organization, and a state employer, this pilot study tested the value of mailing a depression education flyer to primary care patients who were recently prescribed antidepressant medications and an informational letter to their physician. The intervention, designed to improve use of behavioral healthcare services and antidepressant medication adherence, had a moderate impact on consistency of antidepressant medication use and on use of psychotherapy in combination with antidepressant medications. Additionally, intervention patients on combination treatment were more likely to stay on antidepressant medications into the continuation phase of treatment.

Adult↗

PubMed2005

HIV treatment-related knowledge and self-efficacy among caregivers of HIV-infected children.

OBJECTIVE: Improvements in treatment-related knowledge and self-efficacy may improve clinical outcomes in HIV-infected populations. We examined whether caregivers' knowledge and self-efficacy was associated with better clinical outcomes and anti-retroviral therapy (ART) adherence among HIV-infected children. METHODS: Caregivers of 77 perinatally HIV-infected children were administered a semi-structured interview which included scales of HIV treatment-related knowledge, adherence self-efficacy and caregiver reports of child medication adherence. RESULTS: While caregivers correctly answered 74% of the knowledge questions, specific misconceptions were noted. Caregivers rated themselves as having high adherence self-efficacy, but were least confident in their ability to adhere to ART if it caused side effects or might result in social disclosure. Higher caregiver treatment-related knowledge and self-efficacy were associated with better clinical outcomes, as measured by viral load and CD4+ count, but not with caregiver reports of ART adherence. CONCLUSION/DISCUSSION: While additional factors may be important determinants of adherence to ART in this population, improving the HIV treatment-related knowledge and self-efficacy of caregivers may help to improve the clinical outcomes of HIV-infected children. PRACTICE IMPLICATIONS: Care providers should address both misconceptions that might serve to undermine adherence as well as factors that limit patients' self-efficacy in adhering to treatment, prior to the initiation of ART and throughout the course of treatment.

Adolescent↗

PubMed2002

[Factors predicting lack of adherence to highly active antiretroviral treatment].

INTRODUCTION: Knowledge of adherence to highly active antiretroviral treatment (HAART) and the variables associated with poor compliance is useful for the follow-up of HIV infected patients. PATIENTS, MATERIAL AND METHODS: Patients were consecutively recruited from the HIV outpatient clinics of the Hospitals of Leon and El Bierzo from January to June 2000. Patients were considered non-adherent to treatment if they failed to take 10% or more of their prescribed total dose of at least one drug during the 4 days before the interview, or if they had accumulated a delay of more than 9 days over the previous 3 months in picking up their prescribed drugs from the hospital pharmacy. Logistic regression analysis was performed with variables found to be associated with adherence in the univariate analysis. RESULTS: The methods used to determine adherence had a Kappa index of 12.6%. Among the 206 patients interviewed, 108 were considered non-adherent (52.4%; CI 95% 5 45.6-59.2). Multivariate analysis showed that the following factors were associated with poor treatment adherence: cocaine consumption in the previous six months (adjusted OR 5 5.1); patients unsure about the proper way to take prescribed treatment; (adjusted OR 5 2.5); and patients not prescribed the zidovudine-lamivudine combination (adjusted OR 5 1.9). Over one-third of patients with no variable associated with treatment adherence were considered non-compliant. CONCLUSION: Measurement of medication adherence and its predictive factors involved methodological difficulties. With the criteria used in the present study more than half the patients were considered non-compliant. The variables found to be related to poor adherence can be modified by social, psychological or health care interventions.

Anti-HIV Agents↗

PubMed2006

Psychosocial strategies to improve concordance and adherence in bipolar disorder.

Half of patients with bipolar disorder may exhibit poor medication compliance, and relapse often occurs even when patients take their medication as prescribed. Psychosocial strategies can help patients to recognize the need for treatment and, therefore, improve medication adherence. Another benefit of psychosocial strategies is that they aid patients in controlling their moods. Cognitive-behavioral therapy teaches patients to modify dysfunctional thinking and behavior. Treatment contracting allows patients to develop a plan for identifying and coping with symptoms before they become severe. Daily mood charting assists patients in quickly identifying and intervening when changes occur. Creating and following a weekly activity schedule ensures that patients will participate in enough positive activities and avoid destructive activities. Using a variety of psychosocial strategies, patients can train themselves and a support team to effectively deal with bipolar disorder.

Activities of Daily Living↗

PubMed2002

Internet paging system help improve adherence. Counseling is combined with reminders.

HIV patients in Boston who began a study with very low medication adherence made some improvements after several months of being prompted by an Internet-based paging system, but their adherence still was far from the 90% goal of HIV medication treatment programs, according to a study presented at the 14th International AIDS Conference in Barcelona, Spain.

Counseling↗

PubMed2005

Characteristics associated with suboptimal viral suppression at delivery in human immunodeficiency virus-1-infected pregnant women.

OBJECTIVE: This study was undertaken to determine clinical characteristics and factors associated with suboptimal viral suppression at delivery in human immunodeficiency virus (HIV)-infected women. STUDY DESIGN: All HIV-infected women who delivered at a single urban tertiary care center from January 1999 to June 2004 were studied. Women were divided into 2 groups based on HIV viral load (VL) proximate to delivery: VL < 1000 copies per milliliter and VL > or = 1000 copies per milliliter. Demographic and clinical factors were analyzed and compared between the 2 groups. RESULTS: A total of 146 women had adequate data available for analysis: 102 (69.9%) had VL < 1000 copies per milliliter and 44 (30.1%) had VL > or = 1000 copies per milliliter at delivery. Women with a viral load > or = 1000 copies per milliliter at delivery were more likely to have a baseline viral load VL > or = 10,000 copies per milliliter (66.7% vs 32%, P < .001) and less likely to report medication adherence, (50% vs 87.8%, P < .001). CONCLUSION: Our findings support the concept that in addition to antiviral medical therapy, intervention to improve adherence and maintaining a low baseline VL are key components to VL suppression in pregnancy.

Adult↗

PubMed2006

How "bad" does the pain have to be? A qualitative study examining adherence to pain medication in older adults with osteoarthritis.

OBJECTIVE: To explore the experience of adherence to pain medication in older adults with osteoarthritis (OA). METHODS: Individuals were recruited from an existing cohort (n = 1,300) of persons with disabling hip and knee OA. Twenty-seven individuals who reported previous physician visits for their arthritis, spoke English, were Toronto residents, and were receptive to in-depth interviews were approached by the cohort telephone interviewer to discuss their experiences with prescribed painkillers for OA. Semistructured face-to-face interviews were conducted by a qualitative researcher in participants' homes. RESULTS: Nineteen adults (10 women, 9 men) ages 67-92 years were interviewed for 1-3 hours. Participants varied in their socioeconomic status and education levels. Most had comorbidities, such as heart disease and diabetes, for which they were also being treated. Findings indicated that adherence to pain medication differed from that of other prescribed medications. Participants were reluctant to take painkillers, and when they did, they generally took them at a lower dose or frequency than prescribed. This behavior did not reflect their recommendations for others, who they expected to be treated appropriately for pain and to adhere to pain medication. Perceptions and attitudes to pain played an integral role in participants' adherence to painkillers. Despite obvious physical limitations, participants minimized their pain and claimed to have a high pain tolerance. CONCLUSION: These findings suggest that reevaluation of the prescription of pain medication for OA is warranted and that the effectiveness of pain management in OA needs to account for adherence behavior in older adults.

Aged↗

PubMed1995

Brief report: adherence-facilitating behaviors of a multidisciplinary pediatric rheumatology staff.

Investigated the behaviors of pediatric rheumatology health care providers that were expected to be related to patient or parent adherence. Medical charts of 108 patients ages 1 to 20 years diagnosed with Juvenile Rheumatoid Arthritis were examined. The 473 outpatient visits over 15 months yielded a total of 2,578 treatment recommendations, but only 1,390 adherence-facilitating behaviors by medical staff were documented. Providing information about how often to perform the recommendation was the most common staff behavior. In contrast, care providers rarely indicated that they addressed their patients' concerns and barriers to implementing the recommendations, or employed behavior modification strategies to increase adherence. Implications of these findings for development of programs designed to increase treatment adherence in children with chronic diseases requiring time-consuming, intrusive medical regimens are discussed.

Adolescent↗

PubMed2004

Adherence to antiretroviral therapy in rural persons living with HIV disease in the United States.

The current study delineated patterns and predictors of adherence to antiretroviral therapy in 329 persons living with HIV disease in rural areas of 12 US states. Participants provided self-report data on patterns of HIV medication adherence, reasons for missing medication doses, psychological symptomatology, life-stressor burden, social support, ways of coping, coping self-efficacy, the quality of their relationship with their main physician, and barriers to health care and social services. Based on adherence data collected via retrospective, self-report assessment instruments, only 50% of participants adhered consistently to antiretroviral therapy regimens in the past week. Consistent adherence was more common in White participants, persons who had progressed to AIDS, and 'native infections' (i.e. persons who were born, raised, and infected in their current place of residence). Logistic regression analyses indicated that consistent adherence was reported by persons who drank less alcohol, had a good relationship with their main physician, and engaged in more active coping in response to HIV-related life stressors. As the number of rural persons living with HIV disease continues to increase, research that identifies correlates of non-adherence and conceptualizes approaches to optimize adherence in this group is urgently needed.

Adolescent↗

PubMed2001

Drug therapy in the elderly: what doctors believe and patients actually do.

AIMS: To examine the medication adherence among old persons living in their own homes, to assess their knowledge of their medication, and to indicate target areas for intervention. METHODS: A cross-sectional study of data collected from randomly selected samples of 348 persons, aged 75 years recruited from a population-based register in the municipality of Aarhus, Denmark. Information on all drugs was collected from the subjects during a home visit, and their drug storage was examined. Information was collected from the general practitioners (GP). The measures of adherence were scores of agreements between the GPs' lists and the subjects' actual drug consumption. RESULTS: We found disagreement between the drug information collected from the study population and from the GPs: concerning drugs in 22% of the study-population, concerning doses in 71%, and concerning regimens prescribed by the GP in 66%. Twenty-four percent stated that they did not always follow prescriptions. Most of the deviations from prescriptions were toward lower doses and less frequent drug intake. The drugs most often involved in deviations were hypnotics, analgesics, bronchodilators and diuretics. Sixty percent of the participants knew the purpose of medication, and 21% knew the consequences of omission of the drugs. Less than 6% of the subjects knew about the toxic risks, side-effects, or potential drug interactions. The participants' knowledge of the drugs was positively associated with their adherence. We found a correlation between an increased number of prescribed frequency of drug intake per day and deviation from the regimen (r = 0.25, P = 0.01). There was a positive association between nonadherence and the use of three or more drugs (odds ratio (OR) 2.5; 95% confidence interval (CI) 1.5,4.1), prescriptions from more than one doctor (OR 2.5; 95% CI 1.3,4.8), and probability of dementia (OR 9.0; 95% CI 1.1,72.5). Moreover compliance aids facilitated adherence (OR 4.4; 95% CI 1.6,12.3). Persons living alone were more prone to medication errors (OR 2.0; 95% CI 1.1,3.5). CONCLUSIONS: A differentiated evaluation of adherence by considering the drug, the dose, and the regimen separately produced quantifiable data concerning the subjects' medication habits. Non-adherence ranged from 20 to 70% depending on the measuring method. The participants' knowledge of the treatment was poor. Our results suggest that better information on medication and the use of compliance aids may prevent nonadherence. Special attention should be paid to persons receiving three or more drugs, living alone, receiving drugs from other doctors, and to persons with predementia symptoms, as they are at higher risk of nonadherence.

Aged↗

PubMed2005

Can computer-generated evidence-based care suggestions enhance evidence-based management of asthma and chronic obstructive pulmonary disease? A randomized, controlled trial.

OBJECTIVE: Translation of evidence-based guidelines into clinical practice has been inconsistent. We performed a randomized, controlled trial of guideline-based care suggestions delivered to physicians when writing orders on computer workstations. STUDY SETTING: Inner-city academic general internal medicine practice. STUDY DESIGN: Randomized, controlled trial of 246 physicians (25 percent faculty general internists, 75 percent internal medicine residents) and 20 outpatient pharmacists. We enrolled 706 of their primary care patients with asthma or chronic obstructive pulmonary disease. Care suggestions concerning drugs and monitoring were delivered to a random half of the physicians and pharmacists when writing orders or filling prescriptions using computer workstations. A 2 x 2 factorial randomization of practice sessions and pharmacists resulted in four groups of patients: physician intervention, pharmacist intervention, both interventions, and controls. DATA EXTRACTION/COLLECTION METHODS: Adherence to the guidelines and clinical activity was assessed using patients' electronic medical records. Health-related quality of life, medication adherence, and satisfaction with care were assessed using telephone questionnaires. PRINCIPAL FINDINGS: During their year in the study, patients made an average of five scheduled primary care visits. There were no differences between groups in adherence to the care suggestions, generic or condition-specific quality of life, satisfaction with physicians or pharmacists, medication compliance, emergency department visits, or hospitalizations. Physicians receiving the intervention had significantly higher total health care costs. Physician attitudes toward guidelines were mixed. CONCLUSIONS: Care suggestions shown to physicians and pharmacists on computer workstations had no effect on the delivery or outcomes of care for patients with reactive airways disease.

Academic Medical Centers↗

PubMed2006

Overcoming barriers: the role of providers in improving patient adherence to antihypertensive medications.

PURPOSE OF REVIEW: To provide an overview of recent research assessing the role of physicians and other healthcare providers in facilitating improvements in patient adherence to antihypertensive medications, to provide a framework for addressing patient adherence to antihypertensive therapy, and to propose future directions for assessing the risk of poor adherence in clinical settings. RECENT FINDINGS: Several recent studies have highlighted the role of the healthcare provider in improving patient adherence to antihypertensive therapy. Opportunities exist for providers to improve communication that enhances patients' understanding of their disease and its treatment, to tailor interventions based on whether patients are intentionally or unintentionally non-adherent, to assess and treat side-effects such as erectile dysfunction, to switch to less costly generic alternatives, and to reduce the complexities of medication regimens. SUMMARY: Poor adherence to prescribed therapies is common in patients with hypertension, and should be considered in the evaluation of the hypertensive patient with poor blood pressure control. When initiating treatment in patients newly diagnosed with hypertension and when monitoring patients with existent disease, providers should identify barriers to medication adherence and actively engage patients in shared decision-making regarding their treatment. These activities will facilitate adherence, which may lead to improved outcomes for patients with hypertension and other chronic cardiovascular diseases.

Antihypertensive Agents↗

PubMed2004

Adherence to oral therapy for type 2 diabetes: opportunities for enhancing glycemic control.

PURPOSE: Although diet and exercise are important parts of type 2 diabetes treatment, most patients require pharmacological intervention with multiple agents to maintain adequate glycemic control. This article addresses the numerous patient-related, disease-related, and demographic variables affecting medication adherence in this patient population. DATA SOURCES: Extensive review of scientific literature, clinical practice guidelines, and Internet sources. CONCLUSIONS: Studies have demonstrated that treatments including multiple medications or frequent dosing had a negative impact on adherence. Practitioners have used several approaches in an effort to improve adherence to oral antidiabetic medical therapy, including increased communication between health care providers and patients, implementation of multidisciplinary programs, and use of treatment regimens with easier dosing (i.e., reduced number of drugs or doses taken per day). IMPLICATIONS FOR PRACTICE: Options for type 2 diabetes treatments that combine effective medications into a simpler oral-dosage form may motivate and improve patient adherence. Ultimately, simplifying dosing may lead to better glycemic control, thereby reducing the risks associated with long-term consequences of the disease.

Administration, Oral↗