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S B Johnson

Publications and source records attributed to S B Johnson.

207 records · Page 12Linked to original sources
PubMedDate not supplied

An object-oriented taxonomy of medical data presentations.

A variety of methods have been proposed for presenting medical data visually on computers. Discussion of and comparison among these methods have been hindered by a lack of consistent terminology. A taxonomy of medical data presentations based on object-oriented user interface principles is presented. Presentations are divided into five major classes-list, table, graph, icon, and generated text. These are subdivided into eight subclasses with simple inheritance and four subclasses with multiple inheritance. The various subclasses are reviewed and examples are provided. Issues critical to the development and evaluation of presentations are also discussed.

Audiovisual Aids↗
PubMedDate not supplied

Residential treatment for youngsters with difficult-to-manage insulin dependent diabetes mellitus.

A descriptive outcome study of 52 children with insulin-dependent diabetes mellitus (IDDM) admitted to a residential treatment program over 6 years. Criteria for admission included repeated hospitalizations for diabetes-related problems, excessive school absences, and/or familial disruption. Residential treatment included individual, group, and family psychotherapy, diabetes education, and close medical supervision. The design included collection of data before, during and after treatment. Children admitted to the residential unit were compared to a population of pediatric IDDM outpatients from the same geographical area. Treatment was associated with a reduction in diabetes-related hospitalizations, improved school attendance, decreased glycosylated hemoglobin levels, weight gain, individualized insulin changes, improved knowledge about diabetes, and a normalization of attitudes towards this disease.

Absenteeism↗
PubMedDate not supplied

Diabetologists' judgments of diabetic control: reliability and mathematical simulation.

In study 1, laboratory and supervised blood or urine test data from actual cases were used to develop patient profiles. Seven diabetologists from the same institution rated the diabetic control of 125 profiles on a four-point scale (1 = poor, 2 = fair, 3 = good, 4 = excellent). Six of the 7 diabetologists demonstrated adequate intra- and interrater reliability. Study 2 assessed the reliability of judgments of diabetic control made by diabetologists working in two different settings. There were 9 raters from institution 1 and 8 from institution 2. The impact of the amount and type of information on judgment reliability was evaluated by developing two types of profiles. The test form contained only laboratory and supervised blood or urine test data similar to that utilized in study 1. The history form contained this information as well as other descriptive data typically available to diabetologists. The 17 diabetologists rated 125 anonymous profiles on each of two separate occasions approximately 1 wk apart. On one occasion they rated profiles presented on the test form. On the other occasion they rated profiles presented on the history form. As in study 1, the diabetologist raters demonstrated adequate intra- and interrater reliability. Intrarater reliability was somewhat better when rating test form profiles compared with history form profiles. Reliability was not higher within than between institutions. An analysis of the relative contribution of different diabetes control indices to the diabetologists' judgments indicated that HbA1 influenced raters' judgments at both institutions more than any other single variable.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMedDate not supplied

Subjective symptoms, blood glucose estimation, and blood glucose concentrations in adolescents with diabetes.

Twenty-five adolescent campers with insulin-dependent diabetes mellitus (IDDM) completed a Symptom Rating Checklist and estimated their blood glucose (BG) immediately before having their BG assessed four times daily for 11 days. Consistent relationships between BG and symptoms were not identified when the data were analyzed for the group as a whole. However, when each camper's data were analyzed separately, 23 of the 25 adolescents had at least one significant glycemia-symptom (G-S) correlation. Each camper seemed to have a unique G-S pattern; only one symptom (hungry) was significantly related to BG for more than half of the youngsters studied. Almost all of the significant G-S correlations were indicative of low rather than high BG. However, when asked, few campers were able to accurately identify which symptoms were reliably associated with low or high BG. In this study, different measures of BG estimation error led to different results. The percent of estimates +/- 20% of the actual BG value (55% in this study) was strongly influenced by the actual BG reading because higher BG values have larger accuracy ranges than lower BG concentrations. When estimated BG was simply subtracted from actual BG, under- and overestimates canceled each other out, resulting in an unusually small estimated error (5 mg/dl in this investigation). The absolute difference score ignores the direction of estimation error, but may more accurately reflect patients' average estimation error (68 mg/dl in this study). When actual and estimated BG values were correlated for the group as a whole, the patients appeared to be highly accurate at estimating BG (r = .93, P less than .0001).(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMedDate not supplied

The integrated academic information management system at Columbia-Presbyterian Medical Center.

Over the past seven years, Columbia-Presbyterian Medical Center has been planning and implementing an integrated academic information management system. Accomplishments to date include establishing an institutional information architecture, installing a campus-wide network of workstations, recruiting the staff needed to develop and implement the system, and developing various applications. This paper presents the rationale and steps involved in these accomplishments, as well as data on use of the system so far.

Academic Medical Centers↗