Applying Complexity Theory to a Hospital Complex Patient Care Program

Increasingly, complexity science concepts are informing health care design and practice. The present paper describes the implementation of early complexity science principles in a Complex Care Program with the aim of strengthening the provision of integrated care. Grounded in cybernetic network theory, Stafford Beer’s Viable Systems Model [1] provided the guiding principles for the program’s redesign. The Viable Systems Model with its broadly applicable principles [1], is now the conceptual model of information management in the program. Beer’s framework has enabled a relatively small number of clinicians to coordinate care for a large cohort of patients with significant clinical complexity, and a multitude of providers, in the community setting

Trends in the prevalence and management of diagnosed type 2 diabetes 1994–2001 in England and Wales

BACKGROUND: Type 2 diabetes is an important cause of morbidity and mortality. Its prevalence appears to be increasing. Guidelines exist regarding its management. Recommendations regarding drug therapy have changed. Little is known about the influence of these guidelines and changed recommendations on the actual management of patients with type 2 diabetes. This study aims to document trends in the prevalence, drug treatment and recording of measures related to the management of type 2 diabetes; and to assess whether recommended targets can be met. METHODS: The population comprised subjects registered between 1994 and 2001 with 74 general practices in England and Wales which routinely contribute to the Doctors' Independent Network database. Approximately 500,000 patients and 10,000 type 2 diabetics were registered in each year. RESULTS: Type 2 diabetes prevalence rose from 17/1000 in 1994 to 25/1000 in 2001. Drug therapy has changed: use of long acting sulphonylureas is falling while that of short acting sulphonylureas, metformin and newer therapies including glitazones is increasing. Electronic recording of HbA1c, blood pressure, cholesterol and weight have risen steadily, and improvements in control of blood pressure and cholesterol levels have occurred. However, glycaemic control has not improved, and obesity has increased. The percentage with a BMI under 25 kg/m(2 )fell from 27.0% in 1994 to 19.4% in 2001 (p < 0.001). CONCLUSION: Prevalence of type 2 diabetes is increasing. Its primary care management has changed in accordance with best evidence. Monitoring has improved, but further improvement is possible. Despite this, glycaemic control has not improved, while the prevalence of obesity in the diabetic population is rising

Methods for specifying the target difference in a randomised controlled trial : the Difference ELicitation in TriAls (DELTA) systematic review

Peer reviewedPublisher PD