Source: Department of Health websites or provided by state Departments of Public Health for contribution to a public, nationwide TB dataset.

Description: Publicly available tuberculosis data from 2006-2010. Rates per 100,000 calculated from average number of cases over this timespan. Population data from US Census ACS 5 year county estimates, 2006-2010.

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Please be aware of the following caveats:

NR = Not reported; NA = Not applicable

Data is reported at the county level when possible, at the health district level only when county-level data was unavailable.

Avg. TB cases per 100,000, 06-10 was calculated only for states that do not report yearly TB statistics at the county level. In counties where TB statistics are yearly, this field is coded as "NA"

• Alaska - Cases are reported by health district, but there is no clear geographic link between Alaska's boroughs and the health districts. Alaska data was therefore removed from the dataset.
• Idaho - Cases reported by health district; rates calculated using population of health district;
• Mississippi - Cases reported by health district; rates calculated using population of health district;
• Missouri - Data from 2007-2011; Counties in the metro areas of Joplin and Kansas City had case counts recorded with separately from the municipal area. To correct for this, the municipal cases in a given year were averaged over the number of counties in the metro area and that average was added to the metro-independent case count;
• North Dakota - No yearly breakdown of cases available;
• Pennsylvania - Data from 2005-2009;
• Virginia - Prince William contains population and TB statistics for Prince William Counties, Manassas City and Manassas Park City; Fairfax county includes statistics for Fairfax City and Falls Church City;
• Wyoming - Contains data from 2005-2010, no yearly breakdown of cases available;

Data interpolation: In certain states, TB cases were reported for some counties but not all. In these instances, the TB rate for the remaining counties was interpolated. This was done by taking the total number of TB cases in the state and subtracting the TB cases for the counties where data was provided by the state. This remainder was the total number of TB cases reported in all other counties, therefore these cases were averaged over these counties. For example, Nevada reported 114 cases of TB in 2010 - 97 in Clark County, 12 in Washoe, 2 in Carson City and 3 cases in the 14 remaining counties. The three cases were averaged over the remaining 14 counties to estimate the TB burden for that year in those counties.