Environmental Exposure to Emissions from Petrochemical Sites and Lung Cancer: The Lower Mississippi Interagency Cancer Study

Table 2

Proximity to industrial sites for lung cancer cases and controls in the LMRICS study: mean distance to sites and distribution of ever residing within buffer around specific site types, 1970–1997¹.

Site type	Cases	Controls
Average distance to any active site (m)	7745	8530
Average distance to IARC 1, 2A or 2B rated site^2 (m)	9662	9952
Ever within 0.5 mi buffer, any active site	10.1%	8.2%
Ever within 1.0 mi buffer, any active site	22.0%	20.1%
Ever within 2.0 mi buffer, any active site	51.9%	47.1%
Ever within 0.5 mi buffer, any petrochemical site	7.9%	6.4%
Ever within 1.0 mi buffer, any petrochemical site	14.9%	15.8%
Ever within 2.0 mi buffer, any petrochemical site	39.8%	35.2%
Ever within 0.5 mi buffer, any IARC 1, 2A or 2B rated^2 site	7.0%	5.9%
Ever within 1.0 mi buffer, any IARC 1, 2A or 2B rated^2 site	12.7%	14.4%
Ever within 2.0 mi buffer, any IARC 1, 2A or 2B rated^2 site	31.2%	32.0%
Ever within 0.5 mi buffer, any IARC 1 rated^3 site	5.9%	5.3%
Ever within 1.0 mi buffer, any IARC 1 rated^3 site	11.0%	12.8%
Ever within 2.0 mi buffer, any IARC 1 rated^3 site	26.2%	29.1%

¹None of the differences between cases and controls approached nominal statistical significance (𝑃<.05).
²Site reporting release of at least one chemical rated as a known, probable, or possible human carcinogen by IARC.
³Site reporting release of at least one chemical rated as a known human carcinogen by IARC.