Comparing with US counties, parishes, with median density matched to Park, there were 929 (69.5%) Low Density US counties out of 1337 which had a lower recruitment of the cohort that was 5 to 14 in 1970 than the Park. There were 10.3 million persons (54.5%) out of 18.9 million living in these Low Density US counties
Copyright © James McMartin Long