[Tuberculosis in Czechoslovakia in 1985].
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Biomedical subjects
Publications and source records attributed to D Danková.
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Computer technique in the Czech Socialist Republic, as well as in other countries, has been increasingly used for the evaluation of epidemiological situation of tuberculosis control programmes, and for the effectivity and impact of individual control measures. The notification system of new tuberculous cases detected has been switched in the Czech Socialist Republic into a longtime follow-up of all the patients reported for tuberculosis. In all the new or relapse cases the data on the form and location of disease, the mode of detection, time needed for diagnosis or possible delay in diagnosis due to patients or doctors are analyzed. At regular one-year intervals the data on the treatment and sick-leave are evaluated. The tuberculosis register was put into operation in the Czech Socialist Republic on January 1, 1981. The two-year experience revealed the possibility of operative registration of tuberculous patients if a reliable system of data collection from district departments tuberculosis and respiratory diseases and that of control programmes in a computer had been built up. The advantage of tuberculosis register consists in dynamic information on patients which is processed and published at one-month, three--month, or one-year intervals. The system of tuberculosis register in the Czech Socialist Republic is compared to the advantages and disadvantages of retrospective and prospective studies, one-phase or repeated surveys, and to registers operating in Denmark, Sweden, Finland, the Netherlands, Bavaria, and Scotland. The tuberculosis register in the Czech Socialist Republic is presently considered as an advantageous approach to the establishment of tuberculosis surveillance system.(ABSTRACT TRUNCATED AT 250 WORDS)
The policy of tuberculosis control in the Czechoslovak Socialist Republic has proved effective during the past 20 years under unfavourable epidemiological conditions. At present, however, it ceased to meet the requirements of the changing tuberculosis epidemiological situation. On the basis of data obtained from long-term follow-up of epidemiological indices and longitudinal epidemiological studies there was prepared a new system of compulsory reports on tuberculosis cases, supplemented with continuous supervision of persons registered for tuberculosis, and a proposal of centralized processing of the collected data. Starting January 1, 1981 a register of tuberculosis is planned in the Czech Socialist Republic which will utilize modern computer methods for ensuring the following objectives: 1. to establish data for operative and complex evaluation of epidemiological situation on tuberculosis in districts, regions and the total of Czech Socialist Republic, 2. to provide conditions for assessment of effectivity of tuberculosis control methods, to collect and evaluate data on basic economic aspects of tuberculosis control, 4. in a national project to elaborate and propose essential measures for the surveillance of tuberculosis applicable to existing conditions within the Czechoslovak Socialist Republic. The organization of the proposed tuberculosis register is described.
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An epidemiological and clinical study of tuberculosis in a district with a population of 100 000 has been in operation in Czechoslovakia since 1960. Its objective is to ascertain the epidemiological situation and long-term trend in respect of tuberculosis in a country with well-established tuberculosis control facilities. This second report presents the results achieved in the period 1965-72 and the epidemiological trend of tuberculosis observed during the 12-year study period. The fundamental control measures adopted during the study included systematic BCG vaccination of the newborn and revaccination of persons aged 14 and 19 years; mass surveys of the population over 14 years of age by photofluorography; case-finding among persons with symptoms and in risk groups; systematic treatment of all persons with active tuberculosis-i.e., supervised inpatient treatment followed by outpatient self-administered regimens; and radiological and bacteriological follow-up of cases.The results confirmed that the systematic application of effective treatment throughout the study population was followed by a rapid decline in the prevalence of bacillary tuberculosis, particularly in its chronic form. The incidence of bacillary tuberculosis declined more slowly, because the risk of contracting the disease continued to be high for middle-aged and elderly persons. Indiscriminate photofluorographic surveys of the study population at 3-yearly intervals produced a decreasing yield.An increasing proportion of noninfected persons among the population is the basic condition for a further decline of tuberculosis. The cost of tuberculosis control can be reduced by strict adherence to rational and economical working methods. Most of the economic indicators analysed fell to less than one-fifth between 1961 and 1972.
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Many developed countries are faced with the problem of reorganizing their tuberculosis-control programme to bring it into line with modern conditions. The study reported was undertaken to provide guidelines for this reorganization. It was begun in the district of Kolín, Czechoslovakia, with a population of some 100 000, in 1961 and is still in progress. The paper covers the first 4 years of the study.In 1961 a thorough check-up was made on all persons registered as having active or inactive tuberculosis, or fibrotic lung lesions. In 1961 and 1963 a mass X-ray and tuberculin-testing campaign, with 95% coverage, was carried out for all persons over 14 years of age. All persons with active tuberculosis received adequate treatment. Persons registered as having tuberculosis or suspected tuberculosis were subjected to regular photofluorographic and bacteriological investigations. Newborn infants were given BCG vaccination, and persons aged 14 years and 19 years with negative tuberculin reactions were vaccinated.The prevalence of bacillary tuberculosis fell from 150 cases in 1960 to 91 in 1964, mainly owing to a decrease in the number of chronic cases. The incidence of bacillary tuberculosis detectable by direct smear microscopy, however, remained at about 25 cases throughout the period 1961-64. The risk of developing tuberculosis was found to be highest in persons with fibrotic lung lesions or inactive tuberculosis, and in men above 45 years of age and women above 65 with previously normal photofluorograms.It is concluded from the study that in developed countries priority should be given to adequate treatment of all persons with active tuberculosis, and to early diagnosis in persons consulting physicians and in the high-risk population groups.
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