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Air Quality Criteria for Lead Volume II of II - (NEPIS)(EPA) - US ...

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AX6-231<br />

Table AX6-9.3. Effects <strong>of</strong> <strong>Lead</strong> on Hematopoietic System in Children<br />

Reference, Study<br />

Location, and Period Study Description Pb Measurement Findings, Interpretation<br />

United States<br />

Liebelt et al. (1999)<br />

Connecticut<br />

NR<br />

Schwartz et al. (1990)<br />

Idaho<br />

1974<br />

Design: cross-sectional<br />

Subjects: children (n = 86, 31 female), ages<br />

1–6 yr<br />

Outcome measures: serum EPO, blood Hgb<br />

Analysis: ANOVA <strong>of</strong> outcome measures<br />

stratified by blood Pb, linear regression<br />

Design: cross-sectional<br />

Subjects: children (n = 579), ages 1–5 yr,<br />

residing near an active smelter (with<br />

uncontrolled emissions)<br />

Outcome measures: Hct<br />

Analysis: logistic regression<br />

Blood Pb (µg/dL) median<br />

(range):<br />

18 (2–84)<br />

84%

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