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. Author manuscript; available in PMC: 2017 Jul 1.
Published in final edited form as: Environ Res. 2016 Mar 31;148:102–111. doi: 10.1016/j.envres.2016.03.036

Table 6.

OR and 95% CI for the association between road density and childhood acute leukemia, stratified by leukemia type.

Acute Lymphoid Leukemia Acute Myeloid Leukemia
Unadjusted Adjusted for
Maternal
Education		 Adjusted for
Urbanization
and Maternal
Education		 Unadjusted Adjusted for
Maternal
Education		 Adjusted for
Urbanization
and Maternal
Education
OR (95% CI) OR (95%
CI)		 OR (95% CI) OR (95% CI) OR (95%
CI)		 OR (95% CI)
Road Density
within 750 m of
Birth Residencea
High Exposure (v. Low) 0.98 (0.72
1.32)		 0.96 (0.71,
1.31)		 0.96 (0.71,
1.31)		 1.11 (0.68,
1.83)		 1.14 (0.68,
1.89)		 1.11 (0.67,
1.86)
Stratified by
Gender
    Males (High v. Low) 1.31 (0.84,
2.05)		 1.19 (0.75,
1.89)		 1.19 (0.74,
1.89)		 1.02 (0.45,
2.32)		 0.89 (0.38,
2.10)		 0.86 (0.36,
2.05)
    Females (High v. Low) 0.83 (0.46,
1.48)		 0.80 (0.43,
1.46)		 0.80 (0.44,
1.48)		 1.17 (0.52,
2.63)		 0.93 (0.39,
2.21)		 0.95 (0.40,
2.27)
Road Density
within 500 m of
Birth Residencea
High Exposure (v. Low) 1.02 (0.74,
1.41)		 1.01 (0.73,
1.39)		 1.01 (0.73,
1.39)		 1.05 (0.63,
1.76)		 1.02 (0.61,
1.72)		 1.00 (0.60,
1.69)
Stratified by
Gender
    Males (High v. Low) 1.53 (0.96,
2.44)		 1.43 (0.88,
2.32)		 1.44 (0.88,
2.38)		 1.01 (0.43,
2.38)		 0.88 (0.36,
2.17)		 0.92 (0.37,
2.27)
    Females (High v. Low) 0.57 (0.30,
1.09)		 0.52 (0.27,
1.02)		 0.52 (0.26,
1.02)		 1.11 (0.48,
2.60)		 0.89 (0.35,
2.24)		 0.91 (0.36,
2.34)

OR=odds ratio, CI=confidence interval