Blood lead level measurements were determined according to the protocol developed by Korecková-Sysalová [31].
Because > 99% of lead in blood is present in red blood cells, lack of adjustment for a measure of red blood cell concentration in a population with anemia has the potential to influence blood lead level measurements (deSilva 1984; Kim and Lee 2012; Skerfving and Bergdahl 2007).
This cross-sectional study evaluated 109 children in Dong Mai village, using blood lead level (BLL) measurement, parent interview, and household observation.
From this group, subjects were excluded if they did not have a blood lead level and/or a BMD measurement (n = 2,430) or if they had an ethnicity other than non-Hispanic African American or non-Hispanic white (n = 1,420).
Recent exposure, in this case, as reflected by the blood lead level, remains a critically important measurement, but by expanding the tool chest of measurement methods to include measures of cumulative dose, the ability to understand the full expression of lead toxicity has been markedly increased.
Measurement of blood lead level is the most convenient, readily available, and logistically feasible biomarker for assessing risk of lead toxicity.
† n = 95 ‡ n = 153 Cord blood lead levels were measured in a sample of 206 subjects, of whom 113 mothers had valid plasma Pb measurements.
Generally, blood lead levels are measured to evaluate lead exposure, but the total amount of accumulated lead in the body is not accurately reflected by this measurement [ 23].
For the first visit, we used the blood lead level prior to the inflammatory marker measurements.
Negative estimates of bone lead may be generated when the true lead level is close to zero because of fluctuations in measurement.
Hu et al. (2006) show that in predicting the loss of mental development index (MDI) in 2-year-old children, the plasma lead level is better than the whole blood lead level, and measurements made in the first trimester of pregnancy are better than measures obtained later in pregnancy or in cord blood.
