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Peter Tugwell

Publications and source records attributed to Peter Tugwell.

At least 19 recordsLinked to original sources
PubMed2006

The economic burden of rheumatoid arthritis in a developing nation: results from a one-year prospective cohort study in Thailand.

OBJECTIVE: To assess annual direct and indirect costs in a prospective cohort of patients with rheumatoid arthritis (RA) in Thailand from the societal perspective. METHODS: Data on costs and intangible losses were prospectively collected at regular intervals over a one-year period from 158 RA patients who attended a major tertiary care facility in Bangkok, Thailand. Direct medical, direct nonmedical, indirect, and total costs were estimated according to patients' respective health insurance conditions and converted to 2001 US dollars using published purchasing power parity estimates. Sensitivity analyses were performed and the predictors of costs and intangible losses were investigated. RESULTS: The average societal cost of RA was estimated to be 2682 US dollars, 41.4% of patients' average annual income. Average direct and indirect costs were estimated to amount to 2135 US dollars and 547 US dollars per patient per year, respectively. Seventy-three patients (46.2%) experienced at least one event of intangible losses and 46 patients (29.1%) had decreased earnings ability because of RA. Poor physical function, joint deformity, high number of disease modifying antirheumatic drugs, and steroid use contributed to higher costs and presence of intangible losses. CONCLUSION: RA consumes a significant proportion of patients' annual average incomes and poses a significant economic burden to society. Since RA mainly affects a working-age population, early and timely treatment of this disease can improve both the suffering and the economic productivity of patients in Thailand.

Adult↗
PubMed2006

Reduction of inequalities in health: assessing evidence-based tools.

BACKGROUND: The reduction of health inequalities is a focus of many national and international health organisations. The need for pragmatic evidence-based approaches has led to the development of a number of evidence-based equity initiatives. This paper describes a new program that focuses upon evidence- based tools, which are useful for policy initiatives that reduce inequities. METHODS: This paper is based on a presentation that was given at the "Regional Consultation on Policy Tools: Equity in Population Health Reports," held in Toronto, Canada in June 2002. RESULTS: Five assessment tools were presented. 1. A database of systematic reviews on the effects of educational, legal, social, and health interventions to reduce unfair inequalities is being established through the Cochrane and Campbell Collaborations. 2 Decision aids and shared decision making can be facilitated in disadvantaged groups by 'health coaches' to help people become better decision makers, negotiators, and navigators of the health system; a pilot study in Chile has provided proof of this concept. 3. The CIET Cycle: Combining adapted cluster survey techniques with qualitative methods, CIET's population based applications support evidence-based decision making at local and national levels. The CIET map generates maps directly from survey or routine institutional data, to be used as evidence-based decisions aids. Complex data can be displayed attractively, providing an important tool for studying and comparing health indicators among and between different populations. 4. The Ottawa Equity Gauge is applying the Global Equity Gauge Alliance framework to an industrialised country setting. 5 The Needs-Based Health Assessment Toolkit, established to assemble information on which clinical and health policy decisions can be based, is being expanded to ensure a focus on distribution and average health indicators. CONCLUSION: Evidence-based planning tools have much to offer the goal of equitable health development.

Journal Article↗
PubMed2006

Investigating the decision-making needs of HIV-positive women in Africa using the Ottawa Decision-Support Framework: Knowledge gaps and opportunities for intervention.

OBJECTIVE: To examine HIV-positive women's decision making in the context of pregnancy and HIV/AIDS and to explore interventions that may enhance and develop women's decision-making capacity in the sub-Saharan African context. METHODS: The Ottawa Decision-Support Framework was used to assemble evidence of women's decision-making needs. Several electronic databases were searched and an Internet search of the World Wide Web was conducted to search grey literature sources. An evidence-based approach to assessing benefits, harms and current practices was employed. RESULTS: Several gaps in our knowledge about women's decision making in the context of pregnancy and HIV were identified. The availability of evidence varied for each decision; however, significant gaps included: evidence around testing for ones status, advanced directives for self and child, disclosure (specifically, the impact of), others perceptions of antiretroviral use and data on termination of pregnancies. CONCLUSION: Decision making as a concept was generally not addressed in the MTCT literature. Evidence regarding the perceptions of women and others regarding the various decisions was often not available and subsequently an important aspect of MTCT interventions neglected. PRACTICE IMPLICATIONS: Incorporating a multi-disciplinary decision-support framework may prove useful to promote women's autonomy and involvement in MTCT-related decision making.

Africa South of the Sahara↗
PubMed2006

BLISS index for analyzing knee osteoarthritis trials data.

OBJECTIVES: Different pain thresholds were investigated, using the WOMAC Pain Scale (WOMAC-P) to determine if they could differentiate between treatment groups (hylan G-F 20 vs. appropriate care) at low and very low levels of state attainment in patients with knee osteoarthritis (OA). A method, termed the BLISS (Bellamy et al. Low Intensity Symptom State-attainment) Index, for analyzing OA knee clinical trials data, was proposed. STUDY DESIGN AND SETTING: Five analyses were performed: time to first BLISS day, BLISS days over 12 months, patients with a BLISS response at month 12, patients with a BLISS response at any time, and number of BLISS periods over 12 months. For each analysis, five levels of WOMAC-P were examined: <or=5 normalized units (NU), <or=10, <or=15, <or=20, and <or=25 (higher=more pain). RESULTS: More patients in the hylan G-F 20 group achieved BLISS states in all five analyses. These differences were statistically significant for all pain threshold levels except <or=5 NU. CONCLUSION: Five methods of measuring BLISS attainment using four prespecified threshold levels of pain were able to statistically discriminate between treatment groups. This method may potentially provide an approach, to defining which patients not only improve but also achieve a good state of health, at low and very low levels of pain intensity. BLISS-10 is a therapeutically attainable very low symptom state at which clinically important, statistically significant between-group differences are detectable, and therefore may provide a benchmark against which therapeutic interventions can be assessed. However, the value to patients, of this and other low and very low intensity pain states, requires further elaboration.

Biocompatible Materials↗
PubMed2006

Assessment of the decision support needs of women from HIV endemic countries regarding voluntary HIV testing in Canada.

OBJECTIVE: To describe the decision support needs of immigrant and refugee women from HIV endemic countries regarding decision-making about voluntary counseling and testing for HIV (VCT) in Canada; and the needs of practitioners who support these women in making this decision, in a culturally appropriate manner. METHODS: Adapted, semi-structured questionnaires, based on the Ottawa Decision Support Framework (ODSF), were used to interview practitioners and patients. Practitioners from diverse backgrounds were purposefully selected from centers providing VCT in Ottawa. Adult, English-speaking immigrant and refugee women from HIV endemic countries were recruited from a clinic specializing in immigrant health services. Responses were tabulated using descriptive statistics, and emerging themes coded to identify unique factors affecting decision-making. RESULTS: Analysis revealed differences between practitioner and patient perceptions of the decision-making needs of women from HIV endemic countries regarding VCT. Practitioners identified women's lack of knowledge about HIV transmission and prevention as a primary need, while patients identified inadequate awareness of HIV screening and treatment services, and their benefits and harms. Patients also perceived that women would not be aware of the various VCT options, while few practitioners highlighted this concern. Both groups held similar viewpoints about counseling strategies that could improve decision-making. CONCLUSION: Women were unaware of the options available to them for VCT. Both practitioners and patients highlighted the issue of stigma and negative outcomes associated with testing that created barriers or contributed to delays in women receiving testing. Women preferred anonymous testing, and recommended that information and decision support regarding HIV testing be provided via non-targeted strategies, and integrated within general health services or public education. PRACTICE IMPLICATIONS: Decision support in the context of VCT can improve decision quality, empowering patients to make informed decisions based on personal values. Study findings can inform the development of clinical guidelines for the routine offering of VCT.

AIDS Serodiagnosis↗
PubMed2006

Knowledge translation in developing countries.

There is increasing evidence that the application of knowledge in developing countries is failing. One reason is the woeful shortage of health workers, but as this is redressed, it is also crucial that we have an evidence base of what works to minimize the "know-do gap." The World Health Organization and other international organizations are actively building momentum to promote research to determine effective strategies for knowledge translation (KT). At this time, the evidence base for the effectiveness of those strategies is not definitive in developed countries and is relatively sparse in developing countries. It appears, however, that the effectiveness of these strategies is highly variable and dependent on the setting, and success hinges on whether the strategies have been tailored. A useful framework to provide direction for tailoring interventions is the Ottawa Model of Research Use (OMRU). Underlying OMRU is the principle that success rests with tailoring KT strategies to the salient barriers and supports found within the setting. The model recommends that barriers and supports found in the practice environment or as characteristics of potential adopters and the evidence-based innovation or research evidence be assessed and then the KT strategy tailored and executed. The model also recommends that whether the research has been applied and has resulted in improved health outcomes should be measured. Studies in developing countries, although few, illustrate that the OMRU approach may be a valid method of tackling the challenges of KT strategies to improve health care in developing countries.

Developing Countries↗
PubMed2006

Understanding and overcoming the barriers of implementing patient decision aids in clinical practice.

Patient decision aids (ptDAs) have been developed to assist patients with difficult health-related decisions. Despite their proven effects on decision quality in numerous efficacy trials, we lack an evidence-based approach for implementing them as part of the process of care. Pragmatic trials of ptDAs have uncovered a myriad of implementation challenges; therefore we need a better understanding of the barriers and strategies to overcome them to facilitate their widespread uptake. The following paper provides an overview of the barriers related to the uptake of ptDAs within the process of care and the strategies, opportunities and research priorities to overcome them. This report is based on our interpretation of the literature and our collective experience in implementing ptDAs within trials and other contexts.

Communication Barriers↗
PubMed2006

International Clinical Epidemiology Network: an opportunity for SGIM international cooperation.

The Canadian/American regional group of the International Clinical Epidemiology Network (INCLEN) invites SGIM members to join in an international network dedicated to improving health in low and middle-income countries and reducing health disparities in North America-not only because many goals and activities of the 2 organizations are compatible such as evidence-based medicine, mentoring, and training; but because collaboration between SGIM and INCLEN could strengthen both groups. With increasing brain drain from the developing world to the North, there is an ever-increasing need for academic contributions from the North to swing the balance toward brain gain for the South. SGIM members have the academic expertise to make an important contribution to global health. Participation and contribution from SGIM members is welcomed at the individual or organizational level. We invite you to explore possible partnership and collaboration.

Canada↗
PubMed2006

Use of telephone care in a cardiovascular disease management programme for type 2 diabetes patients in Santiago, Chile.

OBJECTIVES: In 2004, the Chilean National Ministry of Health instituted a cardiovascular disease (CVD) management programme aimed at improving diabetes care among patients treated in the public healthcare system. We sought to identify the characteristics of patients participating in the CVD programme and the feasibility of extending its reach through structured nurse telephone contacts between outpatient encounters. METHODS: We surveyed 569 low-income adults with type 2 diabetes treated in public clinics of Santiago, to assess patients' participation in the CVD programme and willingness to use telephone care services. Surveys were linked to information from medical records. RESULTS: One-third of patients met the target of two visits to the CVD programme in the previous 6 months, and an additional 32% made more than three visits. Use of the CVD programme was associated with greater patient satisfaction, even after controlling for potential confounders. However, 27% of patients had inadequate programme contact, and many of these patients were in poor health. Many CVD programme participants reported difficulties with lifestyle changes, and greater contact with the CVD programme was not associated with healthier behaviours. Most patients (95%) reported telephone access and 37% had used the telephone to contact their clinic. The majority of patients would be willing to use telephone care for additional behaviour change and emotional support. Patients with fewer CVD programme visits were particularly likely to report willingness to use telephone care. DISCUSSION: Clinic-based CVD disease management services reach a large number of socio-economically vulnerable Chileans with diabetes. However, barriers to access remain, and planned telephone care services may increase the reach of self-management support.

Aged↗
PubMed2006

Canada urgently needs a national network of libraries to access evidence.

Canadian health professionals and their patients are deprived of important evidence to guide health and healthcare decisions, ensure quality and avoid unnecessary deaths because, unlike other developed countries, Canada does not have a national medical library as can be found in the United States' National Library of Medicine and the United Kingdom's National Health Service.

Canada↗
PubMed2006

Systematic reviews and knowledge translation.

Proven effective interventions exist that would enable all countries to meet the Millennium Development Goals. However, uptake and use of these interventions in the poorest populations is at least 50% less than in the richest populations within each country. Also, we have recently shown that community effectiveness of interventions is lower for the poorest populations due to a "staircase" effect of lower coverage/access, worse diagnostic accuracy, less provider compliance and less consumer adherence. We propose an evidence-based framework for equity-oriented knowledge translation to enhance community effectiveness and health equity. This framework is represented as a cascade of steps to assess and prioritize barriers and thus choose effective knowledge translation interventions that are tailored for relevant audiences (public, patient, practitioner, policy-maker, press and private sector), as well as the evaluation, monitoring and sharing of these strategies. We have used two examples of effective interventions (insecticide-treated bednets to prevent malaria and childhood immunization) to illustrate how this framework can provide a systematic method for decision-makers to ensure the application of evidence-based knowledge in disadvantaged populations. Future work to empirically validate and evaluate the usefulness of this framework is needed. We invite researchers and implementers to use the cascade for equity-oriented knowledge translation as a guide when planning implementation strategies for proven effective interventions. We also encourage policy-makers and health-care managers to use this framework when deciding how effective interventions can be implemented in their own settings.

Developed Countries↗
PubMed2005

Disease activity and functional changes of RA patients receiving different DMARDs in clinical practice.

The aim of this study was to compare the effectiveness of different disease-modifying anti-rheumatic drugs (DMARDs) in improving disease activity and functional status in patients with rheumatoid arthritis (RA). One hundred and fifty-two Thai RA patients treated with at least one DMARD were enrolled in this 1-year cohort. Demographic characteristics, baseline and end-of-study data on disease activity and Health Assessment Questionnaire (HAQ) Disability Index of the subjects were compared among different DMARD options. Predictors of HAQ score were investigated using regression analysis. The results showed that the studied patients had established RA with mild to moderate activity. More than 85% were prescribed methotrexate (MTX) as single or combined DMARDs. At 1 year, improvement in most activity measures was experienced. However, all patients had functional declines. Patients taking antimalarial agents had the maximal rate of functional deterioration. Patients taking MTX-based DMARDs had significantly lower rate of functional decline than patients taking DMARDs without MTX (p=0.018). Only patients receiving MTX-based DMARDs had clinically meaningful improvement in HAQ score. The predictors of HAQ score at 1 year included baseline HAQ score and patient global assessment at end of study. In conclusion, although DMARD treatment was shown to improve disease activity in RA patients, functional deterioration was evident in our cohort. Thus, measures of functional status are more appropriate than measures of disease activity to evaluate treatment effects of DMARDs in established RA in clinical practice. MTX-based DMARDs should be prescribed where possible in RA patients with persisting activity due to their ability to delay functional deterioration.

Antirheumatic Agents↗