Biomedical subjects

B R Tennison

Publications and source records attributed to B R Tennison.

4 recordsLinked to original sources

PubMed1990

Micro-computers: availability to and use by trainees in public health medicine.

A survey of the availability to and use of micro-computers by public health medicine trainees was undertaken in February, 1989. Most departments have access to computers and trainees possess computing skills, but almost one in 15 trainees had no access to a micro-computer, and one trainee in eleven had no computing experience while a further one in eight had not progressed beyond word-processing. Departments of Public Health Medicine should review their computing resources and ensure that they are adequate for the challenges of the 1990s.

Computer User Training↗

PubMed1988

AIDS: predicting cases nationally and locally.

Models for predicting the future course of the AIDS epidemic can be divided into five types: trend extrapolation models, compartment models, models based on the incubation period, comparison models, and models produced by expert committees. To predict the numbers of cases of AIDS in the United Kingdom and in East Anglia and Cambridge a two stage approach was chosen using trend extrapolation for the national case reports followed by reduction in scale to the two localities. The method predicted that about 2700 cases would be reported nationally during 1990 and about 6000 during 1992. The number of people with AIDS expected to present for treatment in East Anglia during 1990 was 48, and during 1992 was 105; for Cambridge the corresponding figures were 20 and 43. These figures with their estimated 95% confidence intervals will be used for planning local services for people with AIDS, and they emphasise the need for preventive action.

Acquired Immunodeficiency Syndrome↗

PubMed1985

Interval between insulin injection and eating in relation to blood glucose control in adult diabetics.

In a survey of 225 diabetics treated with insulin 24 (10.6%) claimed never to have received advice concerning the interval between insulin injection and eating. Of the remainder, 67 (33%) admitted disregarding advice and using shorter intervals. There was a significant (p less than 0.01) difference between the reported frequencies of clinical hypoglycaemia in patients using different intervals. The effects on glucose control of intervals between insulin injection and breakfast of zero, 15, 30, and 45 minutes were studied for periods of one week in 11 patients with type I diabetes who were receiving twice daily injections of monocomponent porcine insulins and high fibre, high carbohydrate diets, using standard home blood glucose monitoring techniques to measure blood glucose concentrations each morning. The delay of 45 minutes resulted in the lowest frequency of hypoglycaemia and the most acceptable pattern of glucose concentrations measured one and two hours after breakfast and before lunch. Combining results obtained at these three times, the mean increment in blood glucose concentration was smaller after allowing a delay of 45 minutes than after delays of zero (p less than 0.001), 15 (p less than 0.03), and 30 (NS) minutes. A delay of 30 minutes resulted in smaller mean increments in blood glucose concentration than did delays of zero (p less than 0.001) and 15 (NS) minutes. These results suggest that this aspect of diabetic management may be neglected, with important consequences for blood glucose control. An increase in delay between insulin injection and eating to 45 minutes would be a simple and safe way of improving blood glucose control in at least the 37% of the diabetic population surveyed in this study who currently allow less than 15 minutes.

Adolescent↗

PubMed1985

Glycaemic effects of bread and marmalade in insulin-dependent diabetes.

The glycaemic responses of 12 C-peptide negative insulin-dependent diabetics were studied following four breakfasts with different carbohydrate sources. Total energy content of the meals was the usual for each subject, carbohydrate supplying 55% and fat 32%. The meals comprised: wholemeal bread with margarine; white bread with margarine; marmalade made with sucrose, and cheddar cheese; and marmalade (22% of total energy) on wholemeal bread with margarine. The study demonstrated powerfully that there were no statistically significant or clinically relevant differences between the meals in post-prandial glucose peak elevation, or in incremental area under the blood glucose curve to 120 mins. On these grounds, sucrose, in amounts considered acceptable to the general population, need not be prohibited from diabetic diets.

Adult↗