13.02.2013 Views

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

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

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

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

AX6-254<br />

Table AX6-9.8 (cont’d). Effects <strong>of</strong> <strong>Lead</strong> on the Gastrointestinal System<br />

Reference, Study<br />

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

Asia (cont’d)<br />

Lee et al. (2000)<br />

Korea<br />

NR<br />

Africa<br />

Awad el Karim et al.<br />

(1986)<br />

Sudan<br />

NR<br />

Design: cross-sectional cohort<br />

Subjects: adult male Pb workers (n = 95;<br />

secondary smelter, PVC-stabilizer<br />

manufacture, battery manufacture); mean age<br />

42.8 yr (SD 9.3, range 19–64); reference<br />

group (n = 13), mean age 35.1 yr (SD 9.9,<br />

range 22–54)<br />

Outcome measures: prevalence <strong>of</strong> GI<br />

symptoms (self-administered questionnaire)<br />

Analysis: multivariate logistic regression<br />

Design: cross-sectional cohort<br />

Subjects: adult male battery manufacture<br />

workers (n = 92), mean age 31.1 yr (SD 8.2);<br />

reference group (n = 40), mean age 33.7 yr<br />

(SD 9.7)<br />

Outcome measures: clinical evaluation<br />

Analysis: comparison <strong>of</strong> prevalence <strong>of</strong><br />

symptoms <strong>of</strong> Pb poisoning between Pb<br />

workers and reference group<br />

Blood Pb (µg/dL) mean<br />

(SD, range):<br />

Pb: 44.6 (12.6, 21.4–78.4)<br />

Reference:<br />

5.9 (1.2, 4.0–7.2)<br />

Blood Pb distribution <strong>for</strong><br />

Pb workers<br />

>80: 23%<br />

40–80: 72%<br />

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!