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Table 3 Adjusted parameter estimates for birthweight by biological markers of lead exposure in separate linear regression modelsa

From: HFE Gene Variants Modify the Association between Maternal Lead Burden and Infant Birthweight: A Prospective Birth Cohort Study in Mexico City, Mexico

Variable

N

β

P-value

95% CI

Cord Blood Lead (μg/dL)

464

-31.1

0.41

-105.4, 43.3

Maternal Blood at Delivery (μg/dL)

526

9.3

0.80

-64.2, 82.9

Tibia Lead Continuous (μg/g)

538

-4.4

0.01

-7.9, -0.9

Tibia Lead Quartiles

    

Q1 (< 1 - 4.1)

137

Reference

  

Q2 (4.1 - 9.2)

137

17.2

0.72

-75.6, 110.1

Q3 (9.2 - 15.4)

137

-19.1

0.69

-112.1, 73.9

Q4 (15.4 - 43.2)

137

-95.4

0.05

-189.9, -0.8

  

P-Trend

0.06

 
  1. aAll models are adjusted for maternal age, years of maternal education, infant gender, maternal arm circumference, gestational age, smoking status during pregnancy, marital status, maternal hemoglobin one month post-partum, and parity
  2. Number - N, Coefficient - β, Confidence Interval - CI.
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Environmental Health

ISSN: 1476-069X