Table 3.
Comparison of toxic release inventory releases (2014) and county of residence Risk Severity Index Scores between pediatric MS cases and healthy controls
| MS cases N = 290 | Healthy controls N = 442 | P‐value | |
|---|---|---|---|
| Participants with TRI sites within 5 miles of residence, N (%) | 217 (75%) | 321 (73%) | |
| Number of TRI site with chemical releases, Mean [Range] |
20 (44) Range [1–563] |
17 (37) Range [1–580] |
0.900 |
| Total releases by all sourcesb in lbs for facilities within 5 miles, Mean (SD) | 207,672 (41,433) | 206,985 (38,713) | 0.990 |
| Total stack air releasesc in lbs for facilities within 5 miles | 81,532 (15,732) | 35,355 (5772) | 0.002a |
| Total fugitive air releasesd in lbs for facilities within 5 miles | 34,293 (11,460) | 12,062 (5721) | 0.057 |
| Average RSEI score for county of residence, all participants | 2733736 (542519) | 1750258 (330923) | 0.102 |
| Average RSEI score for county of residence, within 20 mi recruiting site | 6,188,463 (1,573,489) | 1,706,977 (383,796) | <0.001a |
| Average RSEI score for county of residence, more than 20 mi recruiting site | 1,501,063 (450,251) | 1,857,609 (650,657) | 0.6435 |
a
Significant at the 0.05 level.
b
All sources include releases into water, land, and air.
c
Stack releases are releases from TRI facilities through stacks and confined air release systems.
d
Fugitive air releases are from unintended releases through building spills and leaks.