Blood lead and blood pressure: analysis of cross-sectional and longitudinal data from Canada.
Analysis of data collected during the Canada Health Survey of 1978-1979 indicated a positive relationship between blood lead and blood pressure, but so weak that the range of lead-related variation among members of the general public was estimated to be at most 3.0 mm Hg of diastolic pressure. Even so, a blood lead level in excess of the median value of 10 micrograms/dL entailed a 37% higher risk of having diastolic pressure above 90 mm Hg. In a longitudinal study of lead foundry workers, an association was found between short-term changes in an individual's blood lead level and contemporary changes in diastolic pressure; this remained significant after allowance for age (or time) trends and for effects attributable to changes in body weight. Short-term changes in urinary cadmium levels were similarly predictive of diastolic pressure.
Neri
L C
LC
Department of Epidemiology and Community Medicine, University of Ottawa, Ontario.
Hewitt
D
D
Orser
B
B
D000328:Adult; D001794:Blood Pressure / Q000187:drug effects*; D002170:Canada; D003430:Cross-Sectional Studies; D006306:Health Surveys; D006801:Humans; D006973:Hypertension / Q000139:chemically induced* / Q000453:epidemiology; D007854:Lead / Q000097:blood* / Q000494:pharmacology; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000139:chemically induced* / Q000453:epidemiology
D007854:Lead