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Biomedical subjects

J Bozikov

Publications and source records attributed to J Bozikov.

11 recordsLinked to original sources
PubMed1991

A microcomputer method for continuous system simulation in health care.

A method for continuous system simulation in biomedicine and health care intended for use with personal computers is described. The method is applicable to multistate deterministic models and based on the use of standard spreadsheet programs used with such computers. It includes features such as model implementation, changes of simulation parameters, execution of simulation experiments as well as tabular and graphic presentation of simulation results. The method can be used for simulation of systems in epidemiology, health-care organization and other biomedical fields where deterministic models are suitable tools for studying phenomena connected with live systems.

Communicable Diseases↗
PubMed1991

Epidemiology of Crohn's disease in Zagreb, Yugoslavia: a ten-year prospective study.

A ten-year prospective study of Crohn's disease was carried out in Zagreb, Yugoslavia. It included both inpatients and outpatients regardless of the extent and severity of the disease. The mean annual incidence rate was 0.7 per 100,000 between 1 January 1980 and 31 December 1989. There was no increase in the incidence of Crohn's disease during the study period. The prevalence of Crohn's disease was 8.3 per 100,000 on 31 December 1989. The results confirm the low frequency of Crohn's disease in central and southern Europe.

Adolescent↗
PubMed1991

Ulcerative colitis in Zagreb, Yugoslavia: incidence and prevalence 1980-1989.

We present a ten-year incidence of ulcerative colitis in Zagreb, Yugoslavia. The study included both outpatients and inpatients regardless of the extent and severity of the disease. The mean annual incidence rate was 1.5 per 100,000 inhabitants for the period of 1 January 1980 through 31 December 1989. There was no increase in the incidence of ulcerative colitis during the study period. A prevalence rate estimate of 21.4 per 100,000 inhabitants was based on July 1985 official estimated population. The results confirm the low frequency of ulcerative colitis in central Europe.

Adult↗
PubMed1991

[Saliva as a risk factor for caries in diabetic patients].

Saliva is an important factor upon which general health of the oral cavity is dependent and which influences the occurrence of caries. In diabetic patients, xerostomia may occur due to pronounced polyuria in non-regulated and inadequately regulated cases. The aim of this study was to determine the amount of stimulated saliva and salivary pH in diabetic patients and in normal subjects, and to study the possible difference in the occurrence of caries. Results pointed to a significant decrease in the amount of stimulated saliva in insulin dependent diabetics (1.22 ml/min vs. 1.43 ml/min in normal subjects; p less than 0.01). The lowest amount of stimulated saliva was found in non-regulated diabetics (1.00 ml/min). In all diabetic patients, a significantly lower salivary pH was recorded as compared to normal subjects (p less than 0.01). The DMFS index was significantly higher in both insulin dependent and non-insulin dependent diabetics as compared to normal subjects (p less than 0.01). Concerning the state of diabetes control, significant differences at the level of p less than 0.01 in the DMFS index were observed among all groups of subjects (normal subjects, and regulated, inadequately regulated and non-regulated diabetics). A decreased salivary flow and pH may represent one from a series of caries risk factors in diabetics, especially in inadequately regulated and non-regulated cases of the disease.

Adult↗
PubMed1991

Epidemiological picture of respiratory viral infections in Croatia.

This paper presents the epidemiological study of respiratory viral infections in Croatia from 1 September 1986 till 31 August 1987. A total of 527 patients with acute respiratory diseases were examined. Their nasopharyngeal secretion and/or throat swab were taken and the viruses were demonstrated by the method of direct viral diagnosis (isolation and rapid immunofluorescent detection). This 12-month study on acute respiratory infections in Croatia in 1986/1987 shows that viruses were the agents in 47.2% of these infections. Out of a total of 527 patients with acute respiratory disease, 177 patients had RSV (prevalence 33.6%), 40 adenovirus (prevalence 7.6%), 18 enterovirus (prevalence 3.4%), 12 parainfluenza (prevalence 2.3%), 8 herpes simplex virus (prevalence 1.3%) and 3 influenza virus (prevalence 0.6%) infection; (9 patients had mixed infections with two viruses). Viral etiology was proved in 44.0% of upper respiratory tract infections, 86.5% of bronchiolitis, 63.3% of pneumonia, 57.5% of bronchitis, and 33.3% of croup. The epidemical wave of RSV infections started in October 1986 and lasted for the next 7 and a half months with a peak in December 1986. Infections with parainfluenza occurred in November 1986 and subsided in March 1987 with a peak in December 1986. An epidemic of adenovirus occurred in two waves and lasted throughout 9 months. Enteroviruses caused infections during the fall and at the beginning of the winter 1986 but also again in the spring 1987.

Humans↗
PubMedDate not supplied

Respiratory syncytial virus infections in SR Croatia, Yugoslavia.

The prevalence of respiratory syncytial virus (RSV) infection was studied during three consecutive annual outbreaks (1983-1986) in SR Croatia, Yugoslavia. A total of 1,238 subjects were examined, using RSV isolation and immunofluorescent (DTFA) methods, with 1,042 showing the signs of respiratory infection and 207 of these having a positive RSV finding. Generally, the prevalence of mild upper respiratory infection (URTI) was 18%, reaching a peak of 30% at 1 year of age. The prevalence of severe lower respiratory tract infections with bronchiolitis, pneumonia, and croup accounted for 51, 34.4, and 28.3% respectively. The highest incidence of RSV infection among respiratory cases was observed in the first 6 months of life (49.4%), being particularly high at the second month among those with URTI, bronchiolitis, pneumonia, and croup (76.2%). Both sexes were equally susceptible to RSV infection (20.51% females, 19.03% males). RSV infections, seasonal incidence ranged from 25.55 to 30.31% in 1983/84 and 1984/85 respectively and dropped sharply to 8.93% in 1985/86.

Adolescent↗
PubMedDate not supplied

[Computer-assisted teaching in medical education--development of methods and supplemental materials].

A review of the elementary types of materials for the computer assisted learning (CAI--Computer Assisted Instruction) is given in this paper. It shows our initial experiences in creating the computer educational materials of the patient management simulation type, destinated for the primary care physicians. A computer simulation program "First Aid in Traffic Accident" is described as an example. A typical structure of these materials is shown. The materials had been developed using the own authoring system, a computer program which enables the teachers and other experts to create the computer educational materials independently, with the minimal help of the professional computer experts.

Accidents, Traffic↗
PubMedDate not supplied

[Cigarette smoking and ulcerative colitis--is there a causal relationship?].

The relation between cigarette smoking and ulcerative colitis was assessed in a case-control study of 235 cases of ulcerative colitis and 311 age- and sex-matched control subjects admitted to the hospital for conditions unrelated to smoking. Smoking habits and daily number of cigarettes smoked were analysed. We found significantly less number of smokers and more ex-smokers in the ulcerative colitis group. The intensity of smoking was equal in both groups. It was noted that pancolitis occurred more frequently in the ex-smokers group. The intensity of smoking did not influence the extension and clinical course of ulcerative colitis. For ulcerative colitis, the relative risk for nonsmokers was 7.4. The study revealed a positive correlation between nonsmoking and ulcerative colitis, higher incidence of pancolitis among ex-smokers and higher relative risk of ulcerative colitis for never-smokers. Various possible causes of influence of smoking on ulcerative colitis are discussed.

Adolescent↗