2016 Kansas Tuberculosis Statistical

Summary


The State of Kansas has had an annual rate of Tuberculosis (TB) averaging less than 3.0 per 100,000 making it a low morbidity state for many years. In 2016, Kansas reported 39 cases for an actual case rate of 1.3 per 100,000. When analyzing trend data, there is continuous fluctuation observed. This fluctuation demonstrates the unstable nature of analyzing trend data when dealing with small numbers of cases. The actual number of cases of active TB in Kansas has fluctuated, but in general has seen a slight downward trend when using the rolling average method. The following two graphs demonstrate these trends with data through 2016. However, what is also being observed currently is a plateauing of the decline, despite our achievement of the national 2020 target rates early.


Kansas TB Cases


Kansas TB Cases Rolling Average


Of the 39 TB cases reported statewide in 2016, 25 (64.1%) were males and 14 (35.9%) were females. Fourteen were Asian, non-Hispanic; 8 were White, non-Hispanic and 10 were Black/African-American, non-Hispanic. Seven cases were Hispanic (all identified as White, Hispanic). Of the 10 Black/African-American cases, all were non-US born.


Kansas Tace TB Table

Kansas has achieved the elimination targets of 2020 for all races. The case rate of US born persons in Kansas for 2016 is .33 per 100,000, less than the 2020 national target of .4 per 100,000. The rate for children under 5 in Kansas in 2016 was 0, less than the 2020 national target of 0.3 per 100,000. There were also no US-born Black/African-American persons diagnosed in 2016 while the national target is 1.5 per 100,000.

The percentage of cases of TB in the foreign-born population in 2015 was 75% of the total case count. Twenty-seven cases of TB were diagnosed in foreign-born individuals in 2016. This translates to a rate of 14.2 per 100,000; compared to the national 2015 target of 14.0 per 100,000 and the 2020 target of 11.1 per 100,000. The following table shows the distribution by country of origin for these foreign-born cases.


Non US-Born Country of Origin For 2015 TB Cases

There were no persons with HIV or MDR TB diagnosed in 2016. However six persons (15.4%) diagnosed with TB had a pre-exiting diagnosis of diabetes mellitus. Two persons were immunosuppressed (not HIV) and one was being prescribed TNF-antagonist therapy.

Thirty-three (84.6%) cases were pulmonary with 17 (43.6% of all cases) of these cases being sputum smear positive as well as culture positive. Fourteen (42.4% of pulmonary) cases were culture positive, but smear negative. Two of the pulmonary cases had positive cultures on bronchial specimens which were smear negative and did not have sputum smears conducted at the time of diagnosis. Of the remaining six cases, all were negative on pathology smears, but culture positive on media growth (1 pleural fluid, 1 peritoneal fluid, 1 muscle tissue, and 3 lymph nodes)

Four cases were diagnosed in persons who were or have been homeless in the past year. Three cases were diagnosed in persons who were non-injection drug users, zero in injecting drug users, and five in persons who used alcohol excessively.