In a longitudinal study of an unselected population of men and women standardized arterial blood pressure was measured at 70 and again at 80. At 70 the prevalence of arterial hypertension (greater than or equal to 160/95 mmHg) was 46% in men and 45% in women. At 80 it was only 19% and 30%. This decrease was partly owed to an increased ten year mortality in hypertensive 70 year old women. However, also a significant individual decrease was seen in the participants examined twice, - a decrease that did not seem connected to the increased use of antihypertensive medicine and was not connected to the presence of arteriosclerotic symptoms, but showed a connection to pathological ECG-changes at 80.
In a cardiovascular survey of 928 men and women aged exactly 30, 40, 50 & 60 years, a correlation between serum cholesterol, cholesterol/HDL-ratio and arterial blood pressure was found. This correlation was indirectly caused by mutual correlations to relative weight and age as a final result found after multiple rank correlation analysis in each sex. HDL was not correlated to arterial blood pressure at all.
Yersinia enterocolitica biotype 4, serotype 0:3 is by far the most common human pathogenic Yersinia enterocolitica subtype in Scandinavia. It is extraordinarily immunologically specific, and an elevated antibody titre greater than or equal 80-160 is known to indicate acute infection. This titre was measured in five population surveys conducted in 1967-78, including 3278 examined adult men and women. The prevalence of titre elevation greater than or equal to was 1.0% in 1967. In 1978 it was significantly higher, 7.7%, and also the individual course of the titre in a ten-year longitudinal survey showed a significant increase in this prevalence, indicating an increasing incidence of infection. Significant sex and age differences were seen, women and younger subjects being more frequently affected than men and older subjects. The prevalence of elevated titre showed a seasonal variation with a maximum in the spring and autumn.
The predictive value of a high diastolic or systolic blood pressure for presence or development of cardiovascular disease diminishes with age. In the present 10-year prospective study of 70-year-olds a Cox regression analysis for competing risk markers for cardiovascular events in the eighth decade was carried out. This analysis showed that neither high diastolic nor high systolic blood pressure had individual predictive value for death from cardiovascular diseases. Concerning development of cardiovascular diseases, however, high systolic blood pressure had individual predictive value in both sexes.
White lead exposure among Danish police officers employed in fingerprint detection. Scand j work environ health 9 (1983) 511-513. White lead is often used by police officers employed in fingerprint detection (dactylography). On the basis of a case of mild lead intoxication in a police officer all 22 exposed police officers at the Bureau of Dactylographic Identification in Copenhagen were examined. All went through a clinical examination and blood lead determination. None of the participants showed any sign of lead intoxication. The median blood lead concentration was 0.97 mumol/l (10th-90th percentiles 0.72-1.44 mumol/l), a value definitely higher than the average of the general population matched for age and sex. A correlation between the weekly white lead exposure and blood lead concentration (r = 0.87, p less than 0.0001) was found among the participants.