[Implementation of an integrated program of prevention of chronic nonspecific diseases in the Kaishiador region of the Lithuanian SSR]. / Realizatsiia integrirovannoi programmy profilaktiki khronicheskikh neinfektsionnykh zabolevanii v Kaishiadorskom raione Litovskoi SSR.

An integrated prevention programme of chronic noncommunicable diseases (CND) was started by the Lithuanian SSR in 1983. Improvement of population's health status due to primary preventive activities aimed at prevention of risk factors' development and correction was defined as the basic long-term goal of the programme. Organizational aspects of the integrated programme carried out in the Kaishyador Region of the Lithuanian SSR were described. Some results obtained during the implementation of the programme on prevalence and correction of major CND risk factors were presented.

[Predicting the dynamics of elevated arterial pressure in 12--13-year-old children of Kaunas and Berlin]. / Prognozirovanie dinamiki povyshennogo arterial'nogo davleniia u 12--13-letnikh detei Kaunasa i Berlina.

The increased arterial blood pressure (BP) variation between 12-13 and 15-16 years of age was examined in 119 schoolchildren of Kaunas and 169 schoolchildren of Berlin. The 90th percentile for systolic and/or diastolic BP was used as a criterion of increased arterial BP. The data were treated by multivariate logistical regression analysis. Independent samples were used to construct and test the model. The reproducibility of increased arterial BP was shown to be affected by physical developmental status as well as baseline systolic and diastolic BP, the influence being more pronounced in girls, as compared to boys. The derived formulas are presented as a nomogram to facilitate their practical application.

[Value of the "regression-to-mean" effect in the evaluation of arterial blood pressure in adolescents in epidemiological studies]. / Znachenie "effekta regressii k srednemu" pri otsenke arterial'nogo davleniia u podrostkov v epidemiologicheskikh issledovaniiakh.

Patterns of systolic and diastolic blood pressure were assessed in adolescents who were 12-13 at the time of first examination. Three-year follow-up consisted of 5 check-ups. Upon the first examination, all adolescents were divided into three groups: those with low (below the 10th percentile), normal (between the 10th and 90th percentiles) and high (above the 90th percentile) arterial BP values. Repeated checkups covered all adolescents with low and high arterial BP as well as a 20% sample of normotensive subjects. Over the three years of follow-up; the greatest increment in systolic and diastolic arterial BP was noted in the hypotensive group, and the smallest, in the hypertensive group. Various hypotheses are discussed that might explain the demonstrated regularity; the "regression-to-mean" effect is proposed as a possible explanation.

[Epidemiological studies of arteriosclerosis precursors among 10- to 15-year-old schoolchildren]. / Epidemiologicheskie issledovaniia nekotorykh predvestnikov ateroskleroza sredi skhol'nikov 10-15 let.

Epidemiological study of atherosclerosis precursors in schoolchildren whose ages ranged from 10 to 15 was undertaken in 1977; 2 296 schoolchildren have been screened. The follow-up groups were formed according to the following factors: high arterial blood pressure, overweight and obesity, low physical activity, smoking. Analysis of the data showed the distribution of the precursors of atherosclerosis to be as follows: 47.4% of boys and 42.2% of girls had no precursors: 34.3% of boys and 42.2% of girls had one precursor; 14.1% of boys and 13.8% of girls had two precursors, and 4.2% of boys and 4.9% of girls had three precursors. To lower the incidence of the precursors of atherosclerosis special attention should be paid to the children with such precursors.