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PubMed2004

Poor antipsychotic adherence among patients with schizophrenia: medication and patient factors.

Many patients with schizophrenia are poorly adherent with antipsychotic medications. The newer, atypical antipsychotics may be more acceptable to patients and result in increased adherence. We used national Department of Veterans Affairs (VA) pharmacy data to examine whether patients receiving atypical agents are more adherent with their medication and explored patient factors associated with adherence. Patients who received a diagnosis of schizophrenia or schizoaffective disorder between October 1, 1998, and September 30, 1999, were identified in the VA National Psychosis Registry. We calculated medication possession ratios (MPRs) for patients filling prescriptions for one (n = 49,003) or two (n = 14,211) antipsychotics during the year. We examined cross-sectional relationships among adherence, type of antipsychotic, and patient characteristics and explored adherence among patients switching antipsychotics during the year. Among patients receiving one antipsychotic, 40 percent had MPRs < 0.8, indicating poor adherence. African-Americans and younger patients were more likely to be poorly adherent. Cross-sectionally, patients on atypical agents were more likely to be poorly adherent (41.5%) than patients on conventional agents (37.8%). However, among a small group of patients switching from a conventional to an atypical agent (n = 1,661) during the year, the percentage who were poorly adherent decreased from 46 percent to 40 percent. We describe the continuum of antipsychotic adherence among a large sample of patients with schizophrenia and confirm that poor adherence is common. African-Americans and younger patients are particularly at risk. Unfortunately, atypical antipsychotics may not be associated with substantial improvements in adherence. More intensive interventions are likely needed.

Adult↗

PubMed2004

A collaborative approach to the treatment alliance in bipolar disorder.

OBJECTIVES: The treatment alliance is the arena in which psychopharmacological and other therapeutic interventions occur. The nature and quality of the treatment alliance may affect adherence to treatment and the realization of the benefits of effective pharmacological treatment in clinical practice. It is an area that has attracted little systematic study, despite the available evidence suggesting that it plays a measurable role in clinical outcomes. METHODS: A literature search was undertaken using Medline, Ovid, Psychinfo and Science Direct from 1975 to 2004. The following key words were used: bipolar disorder, patient adherence, non-adherence to medication, compliance, doctor-patient relationship, doctor-patient communication, treatment alliance, therapeutic alliance, chronic illness management, collaborative care, self-management, health beliefs, self-efficacy, self-determination, autonomy support, motivational interviewing. RESULTS: Psychosocial interventions have demonstrated positive effects on adherence problems. Studies of the impact of the treatment alliance on outcomes in mental illness highlight the possibilities of fruitful research in this area in bipolar disorder. Different theoretical models of changing health related behaviour may inform approaches to the treatment alliance. CONCLUSIONS: Results suggest the usefulness of a collaborative approach to the treatment alliance. Attention needs to be given to developing intervention models that target modifiable risk factors for non-adherence and address patient, clinician and illness related variables to enhance medication adherence in the treatment alliance. Refinement of these models through controlled evaluation in real world settings may lead to integration in health care delivery systems.

Aged↗

PubMed2006

The impact of meaning in life and life goals on adherence to a tuberculosis medication regimen in South Africa.

SETTING: Out-patient tuberculosis (TB) clinics in Durban, South Africa. OBJECTIVE: Health care provider concerns about persons with active TB defaulting on medications led to a study of adherence among persons receiving anti-tuberculosis therapy and, specifically, the relationships between meaning in life, life goals, sense of coherence, social support, symptom presence and intensity, and adherence in individuals diagnosed with TB. DESIGN: A cross-sectional, descriptive design was used to gather self-reported data from TB-infected individuals who were enrolled in out-patient clinics. Data were collected from 159 Zulu and/or English-speaking persons who agreed to participate in the study. RESULTS: A significant relationship was found between higher life goals and adherence to TB treatment (P = 0.027). Analysis of variance revealed that higher meaning in life ratings were significantly associated with older age (P = 0.007). Having children and children living in the same household were significantly associated with low meaning in life ratings (P = 0.006 and P < or = 0.001, respectively), indicating that these individuals were more concerned about basic matters of home and sustenance. CONCLUSIONS: The results of this study indicate that meaning in life and life goals may be useful for identifying individuals who will require additional support in adhering to anti-tuberculosis treatment.

Adolescent↗

PubMed2003

Perceived coercion at hospital admission and adherence to mental health treatment after discharge.

The authors investigated whether mental health inpatients' perceptions of coercion were associated with later treatment adherence. Psychiatric inpatients receiving acute care at three sites were interviewed during their hospitalization and up to five times after discharge. Patients' perceptions of coercion were measured at admission. Adherence to medication and clinical treatment was measured every ten weeks for one year after discharge. Among the 825 patients who had a perceived coercion score and ten-week follow-up data and who reported that outpatient treatment was prescribed, perceived coercion scores were not associated with treatment adherence. The authors concluded that perceived coercion neither increases nor decreases psychiatric inpatients' medication adherence or use of treatment services after discharge.

Adolescent↗

PubMed2006

Persistent depressive symptoms lower aspirin adherence after acute coronary syndromes.

BACKGROUND: Even mild depressive symptoms during hospitalization are an independent risk factor for mortality after acute coronary syndromes (ACS). The mortality risk is highest for patients whose depressive symptoms persist after ACS. Low adherence to medications that reduce the risk of subsequent cardiac events may be one of the mechanisms underlying the relationship between persistent depression and risk of ACS recurrence. We compared electronically monitored adherence to aspirin in 3 groups of patients with ACS: persistently depressed, remittent depressed, and persistently nondepressed. METHODS: Using an electronic device stored in the cap of a pill bottle, we monitored aspirin adherence over a 3-month period in 165 consecutive patients recruited within 1 week of an ACS event. Depressive symptom severity was assessed by using the Beck Depression Inventory at baseline and at 3 months. Adherence was determined by the percentage of days aspirin was taken as prescribed. RESULTS: Among the patients, 10.5% of nondepressed patients, 9.8% of remittent depressed patients, and 42.1% of persistently depressed patients took aspirin < or of the time (P < .001). Examined a different way, the mean percentage of days that the correct aspirin dosage (1 pill per day for all patients) was taken was significantly lower in the persistently depressed patients (76.1%) than in the remittent depressed (87.4%) and persistently nondepressed (89.5%) patients (P < .01). Remittent depressed patients did not differ from nondepressed patients. Results remained unchanged after controlling for baseline depressive symptom severity and medical comorbidity. CONCLUSIONS: Poor medication adherence--a potentially modifiable behavior--may contribute to the high mortality risk observed in patients with persistent symptoms of depression after ACS.

Aged↗

PubMed2005

Do fixed-dose combination pills or unit-of-use packaging improve adherence? A systematic review.

Adequate adherence to medication regimens is central to the successful treatment of communicable and noncommunicable disease. Fixed-dose combination pills and unit-of-use packaging are therapy-related interventions that are designed to simplify medication regimens and so potentially improve adherence. We conducted a systematic review of relevant randomized trials in order to quantify the effects of fixed-dose combination pills and unit-of-use packaging, compared with medications as usually presented, in terms of adherence to treatment and improved outcomes. Only 15 trials met the inclusion criteria; fixed-dose combination pills were investigated in three of these, while unit-of-use packaging was studied in 12 trials. The trials involved treatments for communicable diseases (n = 5), blood pressure lowering medications (n = 3), diabetic patients (n = 1), vitamin supplementation (n = 1) and management of multiple medications by the elderly (n = 5). The results of the trials suggested that there were trends towards improved adherence and/or clinical outcomes in all but three of the trials; this reached statistical significance in four out of seven trials reporting a clinically relevant or intermediate end-point, and in seven out of thirteen trials reporting medication adherence. Measures of outcome were, however, heterogeneous, and interpretation was further limited by methodological issues, particularly small sample size, short duration and loss to follow-up. Overall, the evidence suggests that fixed-dose combination pills and unit-of-use packaging are likely to improve adherence in a range of settings, but the limitations of the available evidence means that uncertainty remains about the size of these benefits.

Drug Combinations↗

PubMed1998

Adherence to a prophylactic medication regimen in patients with symptomatic versus asymptomatic ischemic heart disease.

Although angina pectoris is the most common symptom of coronary artery disease, some patients do not experience angina during ischemic episodes. The effects of asymptomatic (silent) heart disease on patient self-management have rarely been studied. Studies of other patient populations with asymptomatic illnesses indicate that patients with silent myocardial ischemia might adhere less well to a prophylactic medication regimen than would those with symptomatic ischemia. Depression, a state associated with poor adherence to medical regimens is more common among patients with symptomatic ischemia. For prevention of thromboembolic events, 37 patients with documented ischemic heart disease who denied having anginal symptoms and 28 patients who reported almost daily symptoms were given a 3-week supply of low-dose aspirin packaged in an unobtrusive electronic adherence monitor. All other medications were provided in standard pill bottles. The symptomatic patients removed their prescribed aspirin on 62.4% of the days; the patients with silent ischemia took their medication on 77.3% of the days. Possible explanations for these results, their clinical implications, and directions for future research are discussed.

Aged↗

PubMed1999

Adherent and nonadherent medication-taking in elderly hypertensive patients.

Nonadherence to medications is a significant reason why patients fail to control their blood pressure. Little work has been attempted to conceptualize medication-taking behaviors from the patient's perspective. This study examined factors that influence elderly hypertensive patients' adherence or nonadherence to prescribed medications. Using a qualitative descriptive research design, 21 hypertensive elderly people were interviewed. Two domains of adherence were identified: purposeful use of the medication for the control of patient's blood pressure and establishing and maintaining patterns of medication-taking. Two similar domains also emerged for nonadherence: purposeful and incidental. Adherence behaviors were dependent on the person's decision to take hypertension medication, access to medications, and ability to initiate treatment and maintain a medication-taking pattern. The timing and location of pills were integral parts of establishing patterns of taking medications. Inadequate access to medications or interruption of a person's pattern were associated with the incidental missing of medications.

Aged↗

PubMed2004

No evidence of an association between transient HIV viremia ("Blips") and lower adherence to the antiretroviral medication regimen.

BACKGROUND: Transient human immunodeficiency virus (HIV) viremia, a common phenomenon among patients taking antiretroviral therapy, is often attributed to lapses in adherence to the medication regimen. We investigated this relationship in a prospective observational cohort of 128 patients initiating a new regimen. METHODS: A case of transient viremia was defined as an HIV RNA level of 40-1000 copies/mL ("blip") sandwiched between 2 months of HIV RNA levels <40 copies/mL ("pre" and "post"). Adherence was most often measured with a composite adherence score (CAS), which is primarily based on electronically measured adherence. Case subjects' adherence and dose-timing was compared with (1) that of other patients (control subjects), who had undetectable virus loads for 3 consecutive months, and (2) that during periods of sustained undetectable virus loads among the case subjects themselves, if available. RESULTS: Among the 28 case subjects, mean CAS-measured adherence did not decrease before transient viremia; adherence during the pre, blip, and post periods were 86%, 84%, and 80%, respectively. Control subjects had lower adherence levels during the corresponding 3 months (77%, 79%, and 75%, respectively; P = .046). Among the 19 patients able to serve as their own controls, CAS-measured adherence was higher during the period of transient viremia than during control periods (P = .01). Similar relationships were found when comparing only electronically measured adherence on a week-wise basis. There were no significant differences in dose-timing error between case subjects and control subjects. CONCLUSIONS: We found no evidence that transient HIV viremia is associated with decreases in adherence or differences in dose-timing. Other etiologies for transient viremia should be evaluated.

Adult↗

PubMed2005

Does an educational leaflet improve self-reported adherence to therapy in osteoporosis? The OPTIMA study.

INTRODUCTION: Adherence to treatment in osteoporosis remains poor. The aim of this study was to evaluate the effects of an educational leaflet on adherence to medication and to assess the association between adherence and health-related quality of life (HRQOL). METHODS: A naturalistic, observational, multi-center, prospective study of 12 months' follow-up was performed. Consecutive post-menopausal women aged 50 years to 86 years starting treatment with raloxifene according to daily practice were enrolled from 126 primary care offices in Spain. The women were assigned to two study groups. Group A received an educational leaflet with general information about osteoporosis; group B followed current practice. To assess adherence to medication and HRQOL, the Morisky test and the EuroQoL questionnaire were administered. A total of 745 post-menopausal women (group A, n=366; group B n=379), with a mean age of 62 years, were included. RESULTS: Most patients in both study groups showed high adherence to raloxifene at the 3-month visit: 56.3% vs 62.7% for groups A and B, respectively; this proportion at the 12-month visit was 47.4% (P=0.15) and 52.5% (P=0.02), respectively. At baseline, "pain/discomfort" was the dimension showing the highest percentage of women reporting problems: 86.4% vs 83.2% in groups A and B, respectively (P=0.22). HRQOL improved in both groups throughout the study, with an overall mean increment in the EuroQoL visual analog scale (EQ VAS) of 9.2 at 12 months (P<0.01). Correlations between adherence and HRQOL were weak. After receiving an educational leaflet, young post-menopausal women suffering osteoporosis did not show improvement in adherence to therapy. HRQOL improved at 12-month follow-up under treatment. CONCLUSION: No consistent correlation between adherence and HRQOL was found.

Aged↗

PubMed1999

Predictors of outpatient medical appointment attendance among persons with HIV.

Non-adherence to medical regimens is a critical threat to the health of HIV-infected individuals. Patients who do not adhere to routine medical care cannot fully benefit from the increasingly efficacious treatments available to them. Consistent attendance at medical appointments plays a central role in both prolonging life and enhancing quality of life for persons living with HIV/AIDS. By identifying why many patients do not reliably attend medical services, interventions can be undertaken to improve appointment-keeping. The primary purpose of the present study was to identify factors predictive of HIV-related medical appointment attendance. One-hundred-and-forty-four outpatients in a public hospital ambulatory care HIV clinic were followed for seven months. Demographic, medical care and psychosocial factors were measured in order to prospectively predict the percentage of missed clinic appointments by persons with HIV disease. Greater outpatient appointment non-attendance was associated with younger age, minority status, less severe illness and lower perceived social support. Treatment duration, provider consistency, hopelessness and religious coping did not emerge as significant predictors of outpatient appointment-keeping in this sample. Practical and theoretical implications of these findings are discussed in light of recent medical advances in HIV/AIDS care.

Acquired Immunodeficiency Syndrome↗

PubMed2003

Measuring adherence in a hypertension clinical trial.

BACKGROUND: Non-adherence in hypertension is a global problem and promoting adherence is necessary to decrease cardiovascular mortality. AIMS: The purpose of this paper is to examine the measurement of adherence to medication taking in hypertensive patients. Adherence was evaluated primarily by means of MEMS (Medication Event Monitoring System, Aprex Corporation, Fremont, California) an electronic system that records the date and time of opening of the study medication container. Additional measurements such as change in urinary potassium level, capsule count, client self report and physician estimate of adherence were recorded. METHODS: A randomised clinical trial was used to assign patients to receive the study medication (potassium) or placebo. Descriptive statistics were used to answer the research questions. Frequency and percentage of responses to different measures of adherence were carried out as well as correlation between the measures. RESULTS: One hundred and seven subjects between the ages of 26 and 80 participated in the clinical trial. The results showed that adherence measures varied with lowest adherence from two items of self-report related to forgetfulness (46 and 55%) and stringent electronic monitoring with the MEMS (58%) to percentages in the 80-90 range for other self-report items and the general adherence scale. Electronic monitoring correlated best with capsule count at visit 5. Implications for health care providers are discussed.

Adult↗

PubMed2002

Prevention of nonadherence to nonsteroidal anti-inflammatory medications for newly diagnosed patients with juvenile rheumatoid arthritis.

Adherence to medications for chronic pediatric diseases decreases overtime. This randomized controlled trial evaluated a clinic-based, nurse-administered educational and behavioral intervention to prevent the anticipated drop in adherence to nonsteroidal medications among newly diagnosed patients with juvenile rheumatoid arthritis. Thirty-four participants completed the study (mean age = 8.44 years, SD = 3.96), including 19 in the experimental group and 15 in the standard-treatment (education) control group. There were significant group and Group x Time effects for adherence (assessed with an electronic monitor over a 13-month period) favoring the experimental group. In contrast, the groups did not differ significantly in disease activity or functional limitations. Factors that may have prevented detection of differences in these health parameters are dicussed.

Adolescent↗

PubMed2000

Diagnosis and treatment of bipolar disorder in pregnant women.

Bipolar disorder is relatively rare in obstetrics and gynecology (ob/gyn) practice compared with depressive and anxiety disorders, but there is a high risk for poor outcomes for patients and their offspring. Ob/Gyn physicians are assuming increasing responsibility for the care of these patients in today's managed care environment, working independently or in collaboration with a psychiatrist. The clinical presentation of bipolar patients may include mania and/or depression, in addition to more minor mood fluctuations that accompany the emotional and physical changes of pregnancy. The key issue in the differential diagnosis is to rule out medical, surgical, medication, and substance etiologies of mania that are potentially reversible. Indications for routine, urgent, and emergent referrals to a psychiatrist are reviewed. Treatment for bipolar women considering pregnancy includes prepregnancy planning education, involving the patient, family, psychiatrist, ob/gyn physician, and maternal-fetal medicine specialist. Treatment for pregnant bipolar women includes an individualized risk/benefit assessment regarding medication, monitoring levels and adherence to medication if it is used, ongoing patient education, and collaboration between the ob/gyn physician, maternal-fetal medicine specialist, and psychiatrist.

Journal Article↗

PubMed2005

Prevalence and correlates of perceived societal racism in older African-American adults with type 2 diabetes mellitus.

Although experiences of racism in day-to-day life may affect minority patients' interaction with the health system and may influence health outcomes, little is known about these experiences in patients with chronic diseases. The goal of this study was to explore the frequency and correlates of perceived societal racism in 42 African Americans aged 50 and older with type 2 diabetes mellitus. Twenty-seven items of the McNeilly Perceived Racism Scale were used to assess exposure to racist incidents in employment and public domains and emotional and coping responses to perceived racism in general. Mean age was 62, 71% were women, and more than half rated their health as fair/poor (55%). Overall, 95.2% of the participants reported at least some exposure to perceived societal racism. Higher mean lifetime exposure to societal racism, based on summary scores on the perceived racism scale, was reported by men (35.0+/-19.1) than women (19.7+/-14.4) (P<.01) and by those with higher household income (30.7+/-17.3) than those with lower household income (18.6+/-15.1) (P<.05). Greater passive coping (e.g., "avoiding it," "ignoring it") was associated with being female and having lower household income and fair/poor self-rated health. The findings that perception of racism and a range of emotional and coping responses were common in older African-American patients attending two diabetes clinics suggest that physicians and other healthcare providers may need to be more aware of patients' day-to-day experiences of societal racism and the influence these experiences may have on patient trust in the medical system and their adherence to medical advice or engagement in self-management of their chronic conditions.

Adaptation, Psychological↗

PubMedDate not supplied

Self-administration of medicine and older people.

BACKGROUND: Non-adherence to medication regimens is a significant problem in older patients, which can lead to therapeutic failure and the wastage of resources. Common causes include poor patient memory, physical difficulties, unpleasant side effects and a lack of social support. CONCLUSION: Strategies such as careful labelling, self-administration of medicine programmes, simplifying drug regimens and the use of medication compliance devices can help to promote patient adherence. Some of these interventions will work for certain patients, however the authors recommend that a multidisciplinary assessment and a regular review of each patient's ability to adhere to medication should be undertaken.

Aged↗

PubMed2005

Natural language processing in the electronic medical record: assessing clinician adherence to tobacco treatment guidelines.

BACKGROUND: Comprehensively assessing care quality with electronic medical records (EMRs) is not currently possible because much data reside in clinicians' free-text notes. METHODS: We evaluated the accuracy of MediClass, an automated, rule-based classifier of the EMR that incorporates natural language processing, in assessing whether clinicians: (1) asked if the patient smoked; (2) advised them to stop; (3) assessed their readiness to quit; (4) assisted them in quitting by providing information or medications; and (5) arranged for appropriate follow-up care (i.e., the 5A's of smoking-cessation care). DESIGN: We analyzed 125 medical records of known smokers at each of four HMOs in 2003 and 2004. One trained abstractor at each HMO manually coded all 500 records according to whether or not each of the 5A's of smoking cessation care was addressed during routine outpatient visits. MEASUREMENTS: For each patient's record, we compared the presence or absence of each of the 5A's as assessed by each human coder and by MediClass. We measured the chance-corrected agreement between the human raters and MediClass using the kappa statistic. RESULTS: For "ask" and "assist," agreement among human coders was indistinguishable from agreement between humans and MediClass (p>0.05). For "assess" and "advise," the human coders agreed more with each other than they did with MediClass (p<0.01); however, MediClass performance was sufficient to assess quality in these areas. The frequency of "arrange" was too low to be analyzed. CONCLUSIONS: MediClass performance appears adequate to replace human coders of the 5A's of smoking-cessation care, allowing for automated assessment of clinician adherence to one of the most important, evidence-based guidelines in preventive health care.

Counseling↗

PubMed2006

Adherence to treatment in patients with psoriasis.

Non-adherence to medication is a chronic problem that impacts on healthcare professionals and patients alike. In psoriasis, a condition that presents patients with frequent and disabling physical, psychological and social effects, studies consistently suggest that up to 40% of patients do not use their medication as directed. Thus it is probable that poor adherence contaminates the clinical picture of response effectiveness in everyday practice. This educational paper reviews research that investigates adherence to medication in patients with psoriasis. It provides an overview of contributing factors and mediating variables. It is proposed that three specific facets appear to optimize patient adherence: an effective doctor-patient relationship; optimism with the treatment prescribed; and a limited 'nuisance' value of treatment in terms of side-effects and hassle of use. Various strategies to address adherence are suggested and it is argued that in order to enhance our understanding of adherence in patients with psoriasis, there needs to be an increasing focus on patients' beliefs about their condition and its management.

Humans↗