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Biomedical subjects

K Bjartveit

Publications and source records attributed to K Bjartveit.

At least 19 recordsLinked to original sources
PubMed1991

[Cardiovascular screenings in Norwegian counties. Background and implementation. Status of risk pattern during the period 1986-90 among persons aged 40-42 years in 14 counties].

Screening for cardiovascular disease risk factors was carried out in 14 of Norway's 19 counties in 1986-1990 as part of a prevention programme. All residents aged 40-42 were invited. The attendance was 73.5% for males and 82.6% for females. A total of 87,761 persons were examined. The screening included determination of serum cholesterol and triglycerides, measurement of blood pressure, height and weight, and filling in a questionnaire. Mean serum cholesterol was 5.90 mmol/l for males and 5.55 mmol/l for females, mean systolic blood pressure 135.3 and 126.1 mm, and prevalence of daily smoking 43.5 and 41.8%. The risk factor levels in the 341 municipalities of the 14 counties are shown cartographically. For both sexes, the highest risk score was found in the northernmost county, the lowest in southern counties. The risk was also relatively high in some rural areas in southern Norway. By geographical area there was a strong correlation between the risk factor levels of the two sexes, and a less consistent but marked correlation between the means for the various risk factors.

Adult↗
PubMed1991

[Cardiovascular screenings in Norwegian counties. Trends in risk pattern during the period 1985-90 among persons aged 40-42 in 4 counties].

In 1985-90, two screenings for cardiovascular disease risk factors were carried out with an interval of three years in four Norwegian counties. All residents aged 40-42 were invited to both screening rounds, and certain subgroups from the first round were re-invited to the second round. Compared with the score attained by the first generation, the total mean risk score for myocardial infarction achieved by the second generation was 19% lower in males, and 15.5% lower in females. The main cause of this reduction was lower serum cholesterol level. Based on results from the subgroups, the estimated mean risk score for the total male cohort from the first round had decreased by 10% at the rescreening three years later. It is concluded that the results indicate a continued, and perhaps accelerated, decrease in coronary heart disease mortality, as new generations populate the age groups where this disease is more prevalent. The screenings were part of a prevention programme, and it is reasonable to assume that the efforts by the primary health care services contributed to the improvement.

Adult↗
PubMed1990

Coffee consumption and death from coronary heart disease in middle aged Norwegian men and women.

OBJECTIVE: To study the association between number of cups of coffee consumed per day and coronary death when taking other major coronary risk factors into account. DESIGN: Men and women attending screening and followed up for a mean of 6.4 years. SETTING: Cardiovascular survey performed by ambulatory teams from the National Health Screening Service in Norway. PARTICIPANTS: All middle aged people in three counties: 19,398 men and 19,166 women aged 35-54 years who reported neither cardiovascular disease or diabetes nor symptoms of angina pectoris or intermittent claudication. MAIN OUTCOME MEASURE: Predictive value of number of cups of coffee consumed per day. RESULTS: At initial screening total serum cholesterol concentration, high density lipoprotein cholesterol concentration, blood pressure, height, and weight were measured and self reported information about smoking history, physical activity, and coffee drinking habits was recorded. Altogether 168 men and 16 women died of coronary heart disease during follow up. Mean cholesterol concentrations for men and women were almost identical and increased from the lowest to highest coffee consumption group (13.1% and 10.9% respectively). With the proportional hazards model and adjustment for age, total serum and high density lipoprotein cholesterol concentrations, systolic blood pressure, and number of cigarettes per day the coefficient for coffee corresponded to a relative risk between nine or more cups of coffee and less than one cup of 2.2 (95% confidence interval 1.1 to 4.5) for men and 5.1 (0.4 to 60.3) for women. For men the relative risk varied among the three counties. CONCLUSIONS: Coffee may affect mortality from coronary heart disease over and above its effect in raising cholesterol concentrations.

Age Factors↗
PubMed1989

Serum triglycerides as an independent risk factor for death from coronary heart disease in middle-aged Norwegian men.

The relation between nonfasting serum triglycerides and death from coronary heart disease was studied in 37,546 men aged 35-49 years who were examined during 1972-1977 in four counties in Norway. During an average follow-up period of nine years, 369 deaths from coronary heart disease occurred. In univariate analysis, log(triglycerides) were a weak, but statistically significant predictor of coronary death in the age groups 40-44 and 45-49 years. Within-area analysis showed that a high triglyceride area represented no extreme. When other coronary risk factors were adjusted for, log(triglycerides) remained a significant independent predictor at ages 45-49 years and at higher levels of serum cholesterol. The predictive strength of serum cholesterol was largely the same whether log(triglycerides) were taken into account or not, whereas the predictive strength of log(triglycerides) depended on whether serum cholesterol was accounted for. The strength of coronary death prediction of the logarithm of serum triglycerides was hardly greater than might be explained by the fact that triglycerides are an indicator of the usual cholesterol level of the subject.

Adult↗
PubMed1987

Notification of tuberculosis in the south-west health region of Norway: incidence and trends.

A survey of tuberculosis notification from the south-west health region of Norway showed a decrease from 17.7 cases of tuberculosis per 100,000 population during 1969-1973 to 12.3 cases per 100,000 during 1979-1983. The notification rate linearly increased with age from the age of 20 years on a logarithmic scale. The downward trend in notification was less marked in the last 5-year period compared with the first 5-year period probably due to changes in notification procedures in 1976, an epidemic of tuberculosis in the health region and on oil platforms in the North Sea in 1980 and an increased immigration of people from areas with high incidence of tuberculosis. Tuberculosis of the extrathoracic lymph nodes was during 1979-1983 the most frequent location of non-respiratory tuberculosis.

Adolescent↗
PubMed1986

Effect of intervention on coronary heart disease risk factors in some Norwegian counties.

Since 1974, a cardiovascular disease screening and intervention program has been carried out in three of the 19 Norwegian counties, namely Finnmark, Sogn og Fjordane, and Oppland. The program strategy was designed to affect both the general population and a defined high-risk group. Procedures were based upon the organization and implementation already well in place through the national tuberculosis prevention program established in the 1940s. The National Health Screening Service performed two screenings, three to five years apart, to identify cardiovascular disease risk factors in all county residents aged 35 to 49 years (age at first screening), and in representative samples of residents aged 20 to 34 years. After each screening, the local general practitioners and public health nurses were responsible for follow-up and intervention against risk factors among defined high-risk persons, as well as for intensified health education in the general population. Between the first and second screenings, a substantial reduction occurred in the level of smoking and in the mean level of total serum cholesterol. A risk score, including values for cholesterol, systolic blood pressure, and cigarette smoking, showed a reduction of approximately 20 percent (in males aged 35 to 49 years). A more detailed analysis of the Finnmark data revealed that the mean reduction was mainly due to a marked reduction within the high-risk group. This occurred particularly with mean cholesterol levels. Since the screening and intervention program was based upon the model established by the Oslo Study, it is reasonable to expect the county program to have had a similar preventive effect. This question will be addressed in future studies.

Adult↗
PubMed1985

Intervention on cardiovascular disease risk factors in Finnmark county: changes after a period of three years. The Cardiovascular Disease Study in Finnmark County, Norway.

In Finnmark county in Norway, 12 329 males and females aged 20-49 years participated in two screening examinations with an interval of 3 years. The primary health service attempted, without receiving any extra resources, to reduce the risk of cardiovascular disease by means of a personal intervention programme among high-risk individuals and a health education programme directed at all residents in the county. During these 3 years the serum total-cholesterol (cross-sectionally) level decreased on average by about 0.3 mmol/l due to: firstly, a decrease among persons recommended a follow-up examination and secondly a decrease among household members of persons followed-up. The effect of a recommendation to attend a follow-up examination because of high blood pressure was doubtful. Cigarette consumption (cross-sectionally) decreased 12% for males and 4% for females. The joint decrease (improvement) in risk factors indicates a possible health benefit of about 20%, calculated in terms of myocardial infarction over 10 years.

Adult↗