Adjusting insulins

Triangulation approach to developing, evaluating, and applying the evolving theory of adolescent acceptance of asthma

Acceptance is a term used by healthcare professionals regarding patients' psychosocial adjustment to chronic conditions. This paper describes a triangulation approach, applied over 25 years, to develop and evaluate a theory of adolescent acceptance of asthma. The theory was used to guide the development and evaluation of an education and counseling program focused on fostering acceptance. The approach was effective in (a) defining acceptance and isolating its attributes; (b) identifying its antecedents and consequences, and specifying relationships among them; (c) revealing overlooked variables and augmenting theory; and (d) using theory to guide development and evaluation of the self-management program.

The impact of initiatives in education, self-management training, and computer-assisted self-care on outcomes in diabetes disease management

The purpose of this work is to elucidate the advantages and disadvantages arising from three distinct diabetes disease management initiatives in a managed care setting. The initiatives included (1) education alone, (2) education with self-management training, and (3) education with computer-assisted self-care. Outcomes of interest were changes in glycated hemoglobin (HbA1c), body weight, and costs of care in each cohort of care recipients. A total of 978 health plan members with diabetes within a mixed model HMO were included in the initiatives for improving blood glucose control. HbA1c was measured at baseline and at 3 and 12 months, body weight at baseline and 12 months, and costs of care over 1 year. Costs were derived from suppliers and the health plan. The design is a longitudinal observation study. With the edu-cation-alone initiative, costs, HbA1c, and body weight were unchanged. When education is supplemented with ongoing self-management training, HbA1c fell 1.1% (p < 0.01), body weight rose by 11 kg (p < 0.01), and costs for care increased by $18 per member per month. When education is supplemented with ongoing computer-assisted self-care, HbA1c also dropped by 1.1% (p < 0.01), body weight was unchanged (p > 0.4), and costs for care were $1.31 per member per month. All initiatives improved glycated hemoglobin. Other outcomes must therefore be considered. Among the initiatives, this study elucidated significant differences in body weight and costs. Therefore, in choosing a diabetes disease management program, it would appear that costs should be the primary consideration and methodologies that control body weight should be a priority.

Information technology and home glucose clamping

Persons with diabetes are responsible for the day-to-day control of their glycemia. To assist patients in discharging this responsibility and help them achieve and sustain improvements in self-blood glucose control, we developed information technology capable of executing algorithms for "clamping glucose" at home. Algorithms for laboratory glucose clamping were translated and adapted for use by patients. The procedures were supported by a central computer and registry. Interaction with the algorithms from home required the patient to handle only a touch-tone telephone, which accessed voice response hardware in the central computer. Patients reported self-measured blood glucose levels or hypoglycemia symptoms together with dietary changes, planned exercise, stress, illness or other lifestyle events. In response, they received self-management instructions and dosing decision support. Metabolic end points were measured. System beta testing in active patients was for 1 year. Patients (n = 142) used the algorithms for their daily self-management, accumulating 1,651 patient-months of follow-up. Almost 100,000 telephone calls were received. Patients benefited. Prevalence of diabetes related crises (hyperglycemia > 400 mg/dL, hypoglycemia < 50 mg/dL or symptoms without measurement) fell approximately twofold (p < 0.05) and glycated hemoglobin levels fell 1.3% (p < 0.001), while body weight was stable. Providers benefited from the timely receipt of standardized reports to monitor the progress of their patients. Earlier intervention was possible. Information technology facilitated home glucose clamping whereby patients with diabetes received timely assistance, advice and decision support for crucial self-control of blood glucose levels. This empowered patients to achieve independence and improve diabetes self-management.

Diabetes intervention in the information age

Sustained improvement in blood glucose control is the only treatment outcome which will reduce or eliminate the long term complications of diabetes mellitus. We have designed and evaluated an electronic information system which facilitates this task. The system is voice-interactive, physician directed and affords, to remote patients, 24 h access via touch-tone telephone. Accordingly, patients access the system each day to report self-measured blood glucose levels or hypoglycaemic symptoms together with dietary changes, planned exercise, stress, illness or other lifestyle events. In turn they receive immediate advice with respect to medication dosing changes, and other pertinent feedback. Preliminary system beta-testing for safety and efficacy was performed for one year in an open study of 204 patients derived from two independent, health-care environments. Among the two testing centres, over 60,000 telephone cells were received by the computer systems during the start-up year. Safety and efficacy expectations were met. In addition, prevalence of diabetes related crises (hyperglycaemia or hypoglycaemia) fell approximately 3-fold. Glycated haemoglobin fell significantly (1.0-1.3%) in patients actively using the system. In control groups of patients not actively using the system, there were no improvements in metabolic control while body weights were stable in all groups. The new system was safe and effective in our hands and empowered our health professionals to provide improved diabetes care.

Application of computers in diabetes care--a review. II. Computers for decision support and education

This paper concludes a review of the contribution of information technology to diabetes care. The role of decision support tools for planning insulin therapy using various clinical algorithms, knowledge-based approaches and interactive simulations is discussed, and certain telemedicine approaches to therapy are considered. The validation and clinical evaluation of these tools is reviewed, as is the likely impact of the routine clinical application of implantable/non-invasive blood glucose monitoring devices. Finally, the application of computers as teaching tools is considered, and ways in which such educational approaches might be applied for disseminating the benefits of the Diabetes Control and Complications Trial more widely are discussed.