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. 2015 Feb;12(2):274–278. doi: 10.1513/AnnalsATS.201410-460BC

Table 3.

Distribution of poll responders versus random sample, by climate region

Climate Region % of Responders (N = 768) % of Sample (N = 5,420)
Southeast 14 15
Northeast 30 32
Great Plains 10 12
Midwest 22 21
Northwest 5 4
Southwest 19 17
Alaska + Hawaii 1 1