Abstract:
INTRODUCTION:An environmental trigger of sporadic amyotrophic lateral sclerosis (ALS) is supported by geographic disparities in ALS incidence and development of the disease in conjugal couples. This study aims to investigate the incidence of ALS in the Northern New England states of New Hampshire (NH), Vermont (VT), and Maine (ME). METHODS:We reviewed medical records and community databases to identify dwelling addresses of 688 patients diagnosed with ALS in 1997-2009 in NH, VT, and ME. We used spatial analysis to identify clusters of census block groups with statistically significant high incidence. RESULTS:We identified 11 clusters of statistically significant high incidence, each containing 6 or more cases of ALS. These 11 clusters are grouped in 4 distinct regions. CONCLUSIONS:There appear to be areas of significant spatial clustering within Northern New England. Further analysis will be needed to confirm whether there is any correlation between these areas and potential environmental risk factors.
journal_name
Muscle Nervejournal_title
Muscle & nerveauthors
Caller TA,Chipman JW,Field NC,Stommel EWdoi
10.1002/mus.23761subject
Has Abstractpub_date
2013-08-01 00:00:00pages
235-41issue
2eissn
0148-639Xissn
1097-4598journal_volume
48pub_type
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