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PubMed1995

Sources of social support as predictors of exercise adherence in women and men ages 50 to 65 years.

Examines types of social support that best predicts adherence at different time points during a 1-year endurance exercise program in 269 women and men ages 50 to 65 years. Results indicate that social support had similar effects on exercise participation for women and men, and support specific to exercise was a better predictor of exercise adherence than general social support. A preference for receiving a lesser amount of initial support from exercise staff was the strongest social support-related predictor of exercise adherence during the initial 6 months of the program. Support currently received from family and friends and exercise staff at Month 6 was found to be the strongest predictor of adherence during Months 7 to 12. Format of exercise was also a strong predictor of exercise adherence with home-based programs related to greater adherence. Additionally, divorced nonsmokers appear to be at increased risk for poor early exercise adherence and should be targeted in interventions to promote exercise participation.

Aged↗

PubMed2006

Intentional and unintentional medication non-adherence: a comprehensive framework for clinical research and practice? A discussion paper.

Non-adherence to medications is a prevalent and persistent healthcare problem, particularly for patients with a chronic disorder. Researchers have endeavoured to address poor adherence for the past five decades resulting in the accumulation of a vast body of literature. Despite the enormity of research conducted, interventions to date have neither been cost-effective nor predictably clinically effective in enhancing medication adherence. Though concerning, such contemporary information serves to refocus attention on the adequacy of knowledge regarding the factors influencing medication non-adherence. Although little consensus exists regarding the optimal categorisation of these influencing factors, increasingly, the broad and 'all encompassing' categorisation of intentional and unintentional factors is being used to account for patient medication-taking behaviours and actions. An extensive review of the related literature provides the basis for a critical discussion on the value and comprehensiveness of this current classification in guiding future adherence research and consequent clinical interventions. An appraisal of this categorisation is important if decisions regarding interventions are not to be made in a vacuum of insufficient understanding, which would result in the continued ineffective use and distribution of valuable resources to combat non-adherence.

Chronic Disease↗

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↗

PubMed1999

Use of omeprazole in the management of giant duodenal ulcer: results of a prospective study.

BACKGROUND: Giant duodenal ulcer (GDU) is generally thought to require surgical intervention. Proton pump inhibitors have beneficial effects in peptic ulcer disease, but their role in GDU disease is unknown. We examined the use of omeprazole in GDU management. METHODS: Twenty-eight patients were diagnosed with GDU. One patient required immediate operative intervention. The remaining 27 were placed on omeprazole (40 mg daily). When ulcer healing was documented by endoscopy, the patients were placed on oral histamine-2 receptor antagonist therapy. RESULTS: Of the 28 study patients, 20 (71.4%) did not require operative intervention, and 8 (28.6%) required operation for ulcer complications. Of the 15 patients with adherent clot or a visible vessel at initial endoscopy, 7 (46.7%) required operative intervention, as compared with 1 (7.7%) of the 13 patients without a visible vessel or adherent clot. This difference was statistically significant (P < .05). Twenty-three patients underwent antral biopsy and/or enzyme-linked immunosorbent assay for Helicobacter pylori, and 9 (39.1%) had a positive result. CONCLUSIONS: Omeprazole is effective in the treatment of GDU disease. An adherent clot or a visible vessel at endoscopy indicates a higher likelihood of complications requiring operation. The relatively low H pylori infection rate, as compared with other peptic ulcer disease, may indicate a different pathophysiology in GDU.

Adult↗

PubMedDate not supplied

Correlates of medication knowledge and adherence: findings from the residency research network of South Texas.

BACKGROUND: Medication adherence is a complex phenomenon, influenced by a variety of factors. Most adherence research focuses on one medicine and does not represent the realities of clinical family medicine. This analysis examined factors associated with medication knowledge and adherence in family medicine patients with chronic conditions. METHODS: The Residency Research Network of South Texas (RRNeST) enrolled 150 patients with chronic disease who "sometimes have trouble taking medicines." Seventy-five percent were Latinos. This cross-sectional analysis used baseline survey data from an intervention study. Investigators correlated medication knowledge and adherence with known predictors--patient, health, medication, economic, and physician factors. New variables related to patients' motivation to change treatment behaviors ("importance" and "confidence") were also included. RESULTS: Linear regression analysis demonstrated that patient satisfaction, education level, and confidence were associated with better medication knowledge. Higher confidence, Spanish language, better functional and health status, and more prescription medicines were correlated with medication adherence. CONCLUSIONS: We recommend that family physicians enhance medication adherence by providing good information about treatment and counseling strategies to build patients' confidence. Our findings suggest that poor health status can be a barrier to, rather than a motivator for, treatment adherence.

Adult↗

PubMed2005

In closely monitored patients, adherence in the first month predicts completion of therapy for latent tuberculosis infection.

BACKGROUND: Current therapy for latent TB infection (LTBI) is long, and requires close follow-up. This results in sub-optimal adherence-the major reason for failure of therapy. METHODS: In an open label randomised trial comparing 4 months of rifampicin with 9 months of isoniazid, the proportion and regularity of doses taken, measured with an electronic monitoring system (MEMS), and provider estimates of adherence in the first month of therapy, were assessed as predictors of treatment completion. RESULTS: Of 104 patients analysed, 86 took more than 80% of doses within the expected interval, 11 took more than 80% of doses but over a longer time interval than usually allowed, and seven did not complete treatment. Treatment completion was associated with the number of doses taken, and the variability of intervals between doses during the first month of treatment. CONCLUSIONS: Adherence in the first month, based on the number of doses and variability of times when taken, could be useful to predict completion of LTBI therapy. Interventions could be targeted to patients with suboptimal adherence in the first month.

Adult↗

PubMed2004

Adherence to a low-fat diet in men with prostate cancer.

OBJECTIVES: To evaluate, in a feasibility study, the adherence to a low-fat diet by men with prostate cancer. Evidence is growing that a low-fat diet affects the development and course of prostate cancer. To design preventive and therapeutic interventions, it is important to know whether men will adhere to these nutritional recommendations, particularly when motivated by the diagnosis of prostate cancer. METHODS: Men with elevated prostate-specific antigen levels, most of whom were recently treated for prostate cancer, were randomized to one of four dietary regimens for which they received nutritional counseling: a low-fat diet (15% fat or less) with supplements (vitamin E and selenium), a low-fat diet (15% fat or less) without the supplements, the supplements alone, and a control group. Adherence was evaluated by the change in weight, fat intake, free fatty acids, cholesterol, high-density and low-density lipoproteins, and triglycerides during a 12-month period. RESULTS: The mean age of the 48 participants was 66 years. For those counseled about a low-fat diet, the mean change in the percentage of energy (kilocalories) in the diet from fat was greater after 3 months (-8.6% versus +2.1%, P <0.001) and 12 months (-9.8% versus -1.6%, P = 0.001). Three months after starting the intervention, those randomized to low-fat dietary counseling had lost 2 kg, on average, compared with 0.8 kg lost by those who did not receive this counseling (P = 0.09). At 12 months, those receiving low-fat counseling had lost 2.8 kg, on average, compared with 0.5 kg gained among the other groups (P = 0.02). CONCLUSIONS: With appropriate counseling, men with prostate cancer can adhere to a low-fat dietary intervention for a 12-month period.

Aged↗

PubMed2005

Randomized controlled trial of a brief intervention for increasing participation in parent management training.

Evidence-based treatments exist for a range of child and adolescent behavior problems; however, effects are often limited by poor treatment attendance and adherence. The authors developed and evaluated the efficacy of a brief (5 to 45 min) intervention designed to increase treatment attendance and adherence in a sample of 76 parents referred for treatment of their child's oppositional, aggressive, and antisocial behavior. The results of this randomized controlled trial showed that parents who received this brief intervention had greater treatment motivation, attended significantly more treatment sessions, and had greater adherence to treatment according to both parent and therapist report. This study provides researchers and clinicians with a brief and efficacious method of increasing motivation, attendance, and adherence for treatment.

Adolescent↗

PubMed1997

Impact of local evidence-based clinical guidelines--a Danish intervention study.

OBJECTIVE: We aimed to evaluate whether a cheap and less labour-intensive regional implementation strategy for guidelines was sufficient to change knowledge and behaviour among GPs. The model studied was the implementation of anticoagulant therapy to prevent stroke in atrial fibrillation. METHOD: The intervention took place in the county of Viborg (149 GPs), Denmark, with the county of Ringkøbing (166 GPs) as control. A local interdisciplinary steering group modified national college-based guidelines, followed by a regional dissemination and implementation strategy. The effect of the intervention was evaluated during a follow-up period by a repeated questionnaire and by monitoring prescriptions for oral anticoagulants in 1993 and 1995 in the Danish National Health Service. RESULTS: Adherence to the guidelines was higher after the intervention but, considering secular trends and baseline differences, the guidelines had no significant effect. The use of oral anticoagulants increased substantially in both counties during the 2-year follow-up period, but the difference in relative change between the counties was negligible. Adherence to the guidelines could not be predicted by any of the reported practice characteristics or attitudes to guidelines. CONCLUSION: Despite solid scientific documentation and regional modification to establish ownership of nationally agreed guidelines, the impact of guidelines on GPs' knowledge and behaviour was disappointing.

Anticoagulants↗

PubMed2000

Adherence to health messages: a social psychological perspective.

Non-adherence to regimes recommended by health practitioners is prevalent in the health and safety area. Even the most effective of interventions does not tend to lead to substantial improvements in adherence. This paper reviews models from the health psychology sphere that predict which factors might lead people to practice health-enhancing behaviours. In terms of health messages, the paper evaluates the methods of persuasion found to be most successful. It provides an analysis of a successful intervention, in which a target audience was motivated to adopt a health-enhancing choice. The paper concludes by examining the principles that can be drawn from successful interventions, in terms of changing a target audience's health behaviours. The focus is on those that can be applied to situations in which a health practitioner hopes to convince the patient to adhere to a preventive regime.

Acquired Immunodeficiency Syndrome↗

PubMed2002

Strategies to improve adherence to recommended chloroquine treatment regimes: a quasi-experiment in the context of integrated primary health care delivery in Ghana.

This paper presents the results of an intervention study carried out as part of the activities of a District Health Management Team responsible for integrated primary health care delivery in a rural district in Ghana. The aim was to test the impact of a combination of improved information provision to patients and drug labeling on adherence to recommended anti-malarial treatment regimens focusing on oral chloroquine, for the outpatient management of acute uncomplicated malaria. The study had a quasi-experimental pre-test post-test control group design with partly random allocation by clinic. The results show that the intervention resulted in an improved flow of information to clients prescribed chloroquine, and better labeling of drugs for the home treatment of acute clinical episodes of malaria in the intervention area. Improvements in adherence occurred in all clinics. However, improvements in adherence were most marked in the clinic that was worst performing at the start of the intervention. Implications of the results for improving adherence to chloroquine therapy on an outpatient basis are discussed.

Administration, Oral↗

PubMed2002

Impact of a targeted intervention on lipid-lowering therapy in patients with coronary artery disease in the hospital setting.

BACKGROUND: Although lipid-lowering therapy according to the National Cholesterol Education Program guidelines decreases mortality and morbidity in patients with coronary artery disease (CAD), significant undertreatment of hyperlipidemia continues to occur. This study was designed to determine the impact of an intervention targeted at improving the use of lipid-lowering therapy in patients with CAD in the hospital setting. METHODS: Cardiac case managers prompted physicians to obtain lipid profiles for patients with CAD who were not receiving lipid-lowering therapy on admission and initiate lipid-lowering therapy for patients with a low-density lipoprotein level of 130 mg/dL (3.37 mmol/L) or higher during hospitalization. The study population comprised 813 patients with CAD admitted for percutaneous transluminal coronary angioplasty, coronary artery bypass grafting, or myocardial infarction. A retrospective chart review of lipid testing and treatment rates was conducted in 300 patients in the preintervention period, and a prospective review of rates was conducted in 513 patients during the intervention period. RESULTS: The percentage of patients with CAD not receiving lipid-lowering therapy on admission who had fractionated lipid profiles obtained during hospitalization increased from 27% preintervention to 89% during intervention (odds ratio, 18.27; 95% confidence interval, 11.61-28.74; P<.001). The percentage of patients with a low-density lipoprotein level of 130 mg/dL or higher for whom lipid-lowering therapy was initiated during hospitalization increased from 17% preintervention to 82% during intervention (odds ratio, 24.50; 95% confidence interval, 7.33-81.83; P<.001). CONCLUSIONS: The intervention provided by specialized cardiac case managers significantly increased physicians' adherence to the National Cholesterol Education Program treatment guidelines. The results of the present study suggest that intervention programs of this nature could produce a significant positive impact on cardiovascular outcomes if implemented nationally.

Aged↗

PubMed1991

Feasibility of conducting a lung-cancer chemoprevention trial among tin miners in Yunnan, P. R. China.

Tin miners in Yunnan Province in southern China have an extremely high rate of lung cancer, more than one percent per year among those at 'high risk' (40+ years old, with 10+ years of underground mining and/or smelting experience). The extraordinary lung cancer rates result from combined exposure to radon, arsenic, and tobacco smoking (cigarettes and/or bamboo water pipe). A study to determine the feasibility of conducting a large-scale, lung-cancer chemoprevention trial was conducted in 1986 among currently employed or retired miners from the Yunnan Tin Corporation in the city of Gejiu. The study was designed to answer four questions: (i) Could potentially eligible miners be identified and recruited? (ii) Could intervention agents be shipped successfully from the United States to the study area and be appropriately distributed? (iii) Would miners adequately adhere to the study protocol and comply with the intervention regimen? (iv) Could potential adverse effects be monitored and documented? The six-month feasibility study yielded affirmative answers to each of these questions. A roster of over 7,000 high-risk miners was compiled. Four agents (vitamin A, 25,000 IU; beta-carotene, 50 mg; vitamin E, 800 IU; and selenium, 400 micrograms) were administered daily with placebos to 350 miners according to a 2(4) factorial design. Adherence, assessed by pill counts and serum micronutrient levels, was approximately 90 percent. The findings from this preliminary study indicate that a full-scale, lung-cancer chemoprevention trial in this population is feasible.

Adult↗

PubMed2004

Eliminating catheter-related bloodstream infections in the intensive care unit.

OBJECTIVE: To determine whether a multifaceted systems intervention would eliminate catheter-related bloodstream infections (CR-BSIs). DESIGN: Prospective cohort study in a surgical intensive care unit (ICU) with a concurrent control ICU. SETTING: The Johns Hopkins Hospital. PATIENTS: All patients with a central venous catheter in the ICU. INTERVENTION: To eliminate CR-BSIs, a quality improvement team implemented five interventions: educating the staff; creating a catheter insertion cart; asking providers daily whether catheters could be removed; implementing a checklist to ensure adherence to evidence-based guidelines for preventing CR-BSIs; and empowering nurses to stop the catheter insertion procedure if a violation of the guidelines was observed. MEASUREMENT: The primary outcome variable was the rate of CR-BSIs per 1,000 catheter days from January 1, 1998, through December 31, 2002. Secondary outcome variables included adherence to evidence-based infection control guidelines during catheter insertion. MAIN RESULTS: Before the intervention, we found that physicians followed infection control guidelines during 62% of the procedures. During the intervention time period, the CR-BSI rate in the study ICU decreased from 11.3/1,000 catheter days in the first quarter of 1998 to 0/1,000 catheter days in the fourth quarter of 2002. The CR-BSI rate in the control ICU was 5.7/1,000 catheter days in the first quarter of 1998 and 1.6/1,000 catheter days in the fourth quarter of 2002 (p = .56). We estimate that these interventions may have prevented 43 CR-BSIs, eight deaths, and 1,945,922 dollars in additional costs per year in the study ICU. CONCLUSIONS: Multifaceted interventions that helped to ensure adherence with evidence-based infection control guidelines nearly eliminated CR-BSIs in our surgical ICU.

Catheterization, Central Venous↗

PubMed2006

Medication adherence patterns in adult renal transplant recipients.

Patient adherence to immunosuppressive medications adherence is crucial to survival of the patient and a transplanted kidney, yet adherence is variable. Using a prospective, descriptive design, immunosuppressive medication adherence of 44 renal transplant recipients was followed for 6 months at a Midwestern transplant center using electronic monitoring. Four medication adherence patterns emerged from a hierarchical cluster analysis: those who took medications on time, those who took medications on time with late/missed doses, those who rarely took medications on time and who were late with morning and/or evening doses, and those who missed doses. This study is a step toward developing and implementing interventions targeted to specific patterns of poor adherence.

Adult↗

PubMed2003

Impact of a collaborative care model on depression in a primary care setting: a randomized controlled trial.

To measure the effects of a collaborative care model that emphasized the role of clinical pharmacists in providing drug therapy management and treatment follow-up to patients with depression, we conducted a randomized controlled trial at a staff model health maintenance organization. We compared the outcomes of subjects treated in this collaborative care model (75 patients, intervention group) with subjects receiving usual care (50 patients, control group). After 6 months, the intervention group demonstrated a significantly higher drug adherence rate than that of the control group (67% vs 48%, odds ratio 2.17, 95% confidence interval 1.04-4.51, p=0.038). Patient satisfaction was significantly greater among members randomly assigned to pharmacists' services than among controls, and provider satisfaction surveys revealed high approval rates as well. Changes in resource utilization were favorable for the intervention group, but differences from the control group did not achieve statistical significance. Clinical improvement was noted in both groups, but the difference was not significant. Clinical pharmacists had a favorable effect on multiple aspects of patient care. Future studies of this model in other health care settings appear warranted.

Cooperative Behavior↗

PubMed1995

Twelve month adherence of adults who joined a fitness program with a spouse vs without a spouse.

OBJECTIVE: The purpose was to determine adherence of apparently healthy adults who joined an exercise program with a spouse (Married Pairs) vs. without a spouse (Married Singles). It was hypothesized that Married Pairs would have significantly higher adherence than Married Singles; and that self motivation would be associated with adherence. EXPERIMENTAL DESIGN: Twelve month adherence of Married Pairs and Married Singles were compared to self motivation in a retrospective design. SETTING: Subjects in this study did not volunteer for a scientific investigation, instead they were spontaneous participants in a university fitness program. PARTICIPANTS: Married Pairs were 16 couples and Married Singles were 16 married men and 14 married women. INTERVENTIONS: This study observed the 12 month spontaneous participation in a fitness program. The only intervention was the self motivation questionnaire. MEASURES: Adherence was defined as monthly attendance, compliance to the exercise prescription, dropout, and reason(s) for dropout. Self motivation was also measured. RESULTS: For Married Pairs, monthly attendance was significantly higher (54.2% +/- 10.3 vs 40.3% +/- 14.3) and dropout (6.3% vs 43.0%) was significantly lower than for Married Singles. Compliance to the exercise prescription was good for all of the groups except for the Married Single Men. Fifty percent of the dropouts left because of family responsibilities/lack of spousal support; 25% dropped-out to continue exercising on their own. Self motivation did not differ between Married Pairs and Married Singles. Monthly attendance of spouses in the Married Pairs demonstrated a significant correlation. CONCLUSIONS: Married Pairs had significantly higher attendance and lower dropout than Married Singles which appeared to be primarily influenced by spousal support rather than by self motivation.

Adult↗

PubMed1991

Tumor cell lysis by activated human neutrophils: analysis of neutrophil-delivered oxidative attack and role of leukocyte function-associated antigen 1.

The lysis of tumor cells, and other nucleated mammalian cells, by neutrophilic polymorphonuclear leukocytes (PMNs) triggered by phorbol myristate acetate (PMA) represents a widely used model system to dissect the PMN cytolytic armamentarium, potentially responsible for the cell damage at tissue sites of PMN activation. Although oxidants are generally considered to be instrumental in the target lysis by PMNs, the mediators actually involved remain a matter of controversy. Moreover, other factors potentially crucial to the lysis have not been clearly identified. In order to reexamine the determinants of the cytolytic process, we studied the events underlying the PMA-triggered PMN-delivered attack against two different targets, selected on the basis of preliminary experiments (B lymphoblastoid Daudi cells and erythroleukemic K 562 cells). The results suggest that the lysis is promoted by hypochlorous acid (HOCl) or a compound with characteristics very similar to HOCl itself. No evidence was obtained for the intervention or contribution of hydrogen peroxide (H2O2), hydroxyl (OH.) radicals, and the major HOCl-derived chloramines. PMNs appeared to use 35% of the generated H2O2 to produce HOCl, while the remainder appears to be consumed by PMNs themselves and target cells as well. Moreover, PMNs and target cells coaggregated at an early step of the cytolytic reaction, through a process efficiently prevented by a monoclonal antibody (MoAb J-90) directed against leukocyte function-associated antigen-1 (LFA-1). The inhibition of the PMN-target aggregation by the MoAb J-90 resulted in the impairment of the lysis, despite a normal generation of HOCl. Thus, the data demonstrate that the PMA-triggered lysis of tumor target cells by PMNs requires at least two events, occurring simultaneously: the LFA-1-mediated effector-target adherence and the PMN production of HOCl. The intervention of the LFA-1-mediated PMN-target adherence in the PMA-triggered lysis is likely to allow PMNs to focus HOCl on the target cell surface and suggests that the process requires a sort of molecule to molecule recognition at the effector-target surface level.

Antibodies, Monoclonal↗