Applying evidence and theory to guide clinical decision making--implications for asthma management

Knowledge sources affecting decision-making among social and health care managers

PURPOSE

The purpose of this paper is to investigate how managers in social and health care evaluate the knowledge sources affecting their decision-making, and how the evaluations were associated with the managers' professional background, activity sector, gender, age and management experience.

DESIGN/METHODOLOGY/APPROACH

The study data are gathered from a questionnaire survey to the middle-line doctor, nurse and social managers (n = 404) within the responsibility area of a Finnish university hospital. Assessed the proportions of individual knowledge sources in the complete data set and their associations with the subjects' background data. In addition, grouping of individual knowledge sources variables are made using factor analysis.

FINDINGS

The findings indicate that social and health care managers attempt to utilize diverse knowledge sources. Overall, professional experience and education, organization budget, and action plans of one's own unit are estimated as knowledge sources with the greatest impact. Manager's professional background and activity sector are associated with the kind of knowledge affecting their decision-making. Some differences are noted between genders, but differences with respect to age or management experience are non-significant.

RESEARCH LIMITATIONS/IMPLICATIONS

Social and health care organizations represent expert organizations where decision-making is steered by professions and management tasks.

ORIGINALITY/VALUE

This paper suggests that the future decision-makers will be required to identify versatile knowledge areas across cultural barriers, and to be capable of making comprehensive decisions affecting the entire organization.

Barriers to delivering asthma care: a qualitative study of general practitioners

OBJECTIVES

To ascertain what general practitioners' priorities are for achieving optimal outcomes in people with asthma, and the barriers they face in delivering this care.

DESIGN

A qualitative study using the Nominal Group Technique (a highly structured meeting to gain information from experts about a particular issue) was conducted between August 2002 and September 2003. GPs in six discussion groups were asked "What do you think is needed to achieve best outcomes for asthma care?" To augment analysis of the discussion, sessions were taped and transcribed.

PARTICIPANTS

Forty-nine GPs were recruited: 34 from metropolitan and 15 from rural areas.

RESULTS

All groups nominated asthma education for patients and continuing professional education for GPs as major priorities, but they also described educational and structural barriers to achieving these priorities. Other priorities were: medication adherence, facilitating regular patient review, negotiated treatment/management plans, making the correct diagnosis, increased remuneration and consultation time, and safer asthma medications and access to these. Health promotion initiatives and increased public awareness were also priorities. Spirometry was a significant cause of uncertainty. Overall, written asthma action plans were not considered a high priority.

CONCLUSIONS

Remarkable consistency was found between GPs' priorities for delivering best asthma care. Our study identified barriers to asthma guideline adherence, including accessible, relevant education for GPs, and structural, time and cost barriers GPs must overcome in providing asthma treatment and patient education.

Evaluating the effectiveness of combination therapy to prevent COPD exacerbations: the value of NNT analysis

The effective prevention of exacerbations in patients with chronic obstructive pulmonary disease (COPD) has the potential to improve patients' health-related quality of life, reduce rates of hospitalisation and mortality and lower healthcare costs. Several pharmacological agents, including inhaled corticosteroid/long-acting beta2-agonist combination therapies, have demonstrated beneficial effects on COPD exacerbations. The number needed to treat (NNT) analysis is a simple, concise method that allows physicians to quantify directly the benefits that alternative treatment options have on disease outcomes in terms of the number of patients who need to be treated before a benefit is observed. This review evaluates the applicability and clinical relevance of NNT analysis for determining the effectiveness of combination therapies against COPD exacerbations, focusing on budesonide/ formoterol in the same inhaler. Physicians are encouraged to consider NNT data within the context of their limitations and in conjunction with other analytical methods when selecting treatments for patients with COPD.

Evidence-based medicine, medical decision analysis, and pathology

Recent advances in molecular pathology and other technologies such as proteomics present pathologists with the challenge of integrating the new information generated with high-throughput methods with current diagnostic models based mostly on histopathology and clinicopathologic correlations. Parallel developments in the field of medical informatics and bioinformatics provide the technical and mathematical methods to approach these problems in a rational manner. However, it remains unclear whether pathologists or other medical specialists will become primarily responsible for the development and maintenance of these multivariate and multidisciplinary diagnostic and prognostic models that are hoped to provide more accurate, individualized patient-based information. Evidence-based medicine (EBM) and medical decision analysis (MDA) are relatively new disciplines that use quantitative methods to assess the value of information, differentiate fact from myth, and integrate so-called best evidence into multivariate models for the assessment of prognosis, response to therapy, selection of laboratory tests, and other complex problems that influence individual patient care. We review from an epistemological viewpoint the current approach to information in pathology and describe some of the concepts developed by the practitioners of EBM and MDA.