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Jim Connelly

Publications and source records attributed to Jim Connelly.

5 recordsLinked to original sources
PubMed2004

Realism in evidence based medicine: interpreting the randomised controlled trial.

Realism is emerging as a paradigm for research and explanation in the natural and social sciences. A realist framework is elaborated and applied to the four possible situations that may generate the observations of randomised, controlled trials. It is demonstrated that by using two realist concepts "mechanism" and "context" a number of misinterpretations of such trials from within the dominant empiricist paradigm may be rectified. Evidence based medicine should adopt realism to temper a misleading empiricism, this will involve relegating statistical arguments to their proper subsidiary place and adopting an adequate theory of causation.

Causality↗
PubMed2002

A test-and-treat policy does not save endoscopy workload in a non-referral hospital.

AIM: To assess the impact that a test-and-treat policy with open-access urea breath testing (UBT) has had on the referral rates for endoscopy in a district hospital. Additionally, we examined for any change in the proportion of serious pathology detected endoscopically after adopting the policy. METHODS: Analysis of data on all open-access endoscopy referrals in a 12-month period before (October 1994 to September 1995) and 2 years after (October 1997 to September 1998) the introduction of the UBT service. This was compared with the same service in our sister hospital, which had not provided a UBT service. Results of patients attending the UBT service during the period of study were also examined. RESULTS: A total of 798 patients attended for endoscopy (18% aged < 40 years, 82% aged > 40 years) in the pre-UBT year compared with 1905 patients (16% aged < 40 years, 84% aged > 40 years) in the post-UBT year. The standardized referral ratios were significantly higher for both age groups in the post-UBT year: 210 in the < 40 years group (95% CI 187 to 235) and 244 in the > 40 years group (95% CI 233 to 257). Six per cent of the < 40 years group in the post-UBT year had serious pathology compared with 7% pre-UBT (P < 0.1). However, the proportion of serious pathology decreased from 37 to 27% in the > 40 years group (P < 0.01). The total number of open-access endoscopies had increased steadily over the 3 years, despite the introduction of the UBT service. This trend was mirrored in our sister hospital. A total of 457 patients attended the UBT service during the 12 months. Of these, 24.5% were Helicobacter pylori positive, with a 66.3% eradication rate. CONCLUSIONS: A test-and-treat policy has not saved endoscopy workload in this non-referral hospital. We feel that results from centres with an H. pylori interest cannot be generalized for the vast majority.

Adult↗
PubMed2002

Skill mix, doctors and nurses: substitution or diversification?

This commentary surveys the current arguments for and against modifying the work of doctors and nurses by placing the main viewpoints - substitution and diversification - within the policy background, particularly that of the UK. We discuss the forces for modification: cost effectiveness, professional development, quality improvement and pragmatic management and how each provides a stand-point for evaluation of the issues. Policy makers and managers in the health sector should be aware of the rather fragmented evidence base for doctor-nurse substitution and should consider skill mix changes only when they are clear about: purpose, evidence base, acceptable risks, accountability and quality assurance. Doctor-nurse substitution is not necessarily cost effective, nor is it unfailingly a gain in nurse professionalism or in quality of care. Of the management perspectives available - advocacy, skepticism or pragmatism - the current evidence and policy base favours pragmatism over evaluations of the rightness or wrongness of a general policy.

Attitude of Health Personnel↗