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We've excluded counties where fewer than 25 residents were born in the World Cup nation.
In our analysis, we also further excluded counties that tested fewer than 100 children so as not to inappropriately inflate the percentages of children testing with elevated blood-lead levels (for example, 14.3percentt of children tested in Hamilton County, New York, had confirmed elevated blood-lead levels, but only seven children were tested).
We excluded counties too small for the value to be determined reliably.
The excluded counties were primarily in the southern and western United States, particularly in Colorado and Florida.
We excluded counties with populations of 300,000 or greater, while Carozza et al. did not use any restrictions based on population size.
Also, our results did not change considerably when we excluded counties in California, New York and Oklahoma that were not part of the original study.
Similar(52)
We compared these results to the results excluding counties with population densities greater than 500 persons mi−2 and to the results obtained including all counties.
To address this issue, the analysis was repeated after excluding counties with high rates of migration from places with very different solar exposures.
The 'on-system' highway network excludes county roads, local city streets, and functionally classified city streets, which the district office is usually not responsible for.
Finally, I test the robustness of my results by excluding county-specific time trends and clustering standard errors at state- level.
It is the smallest of Hungary's counties, excluding the county of Budapest.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com