The National Health and Nutritional Examination Survey (NHANES), a cross - sectional series of nationally representative health examination surveys, suggests that of the 11,213,000 with LTBI in the overall U.S. population, only one in four had been diagnosed, and only 13 percent had been prescribed treatment.

„The LTBI rates among non-Hispanic whites. 1.9 percent. is close to that required for van het elimination. but the far higher rates among all other groups make U.S. t. b. van het t. b. van elimination by 2010.“ wrote Dr. Bennett and senior unlikely author Kenneth Castro. M.D. M.P.H.

Used this study researchers. van In data from 1999-2000 on 7.386 participants with t. b. skin test results. They intentionally over-sampled people with low income, adolescents, people over age 60, African-Americans, and Mexican-Americans so as to allow for separate analyses of these groups. The survey estimated that approximately 11 million individuals had LTBI in 1999-2000. While that represents a marked decline from the early 1970s, it also masks the shifting demographics of those who have LTBI.

Infections among individuals die van het t. b. van Latent below the poverty level. at 6.1 percent. were significantly higher than the 3.3 living percent amongindividuals die above the poverty living level. Van data excludes suggested homeless and gekerkeerde individuals. van Because the van who make up much of the U.S. population living below the poverty line the association. may be stronger than even.

Race and ethnicity were also associated with LTBI, even after accounting for socioeconomic status. "Among individuals born in the United States, higher LTBI rates were seen among non-Hispanic blacks and Mexican Americans compared with non-Hispanic whites," wrote Dr. Bennett.

Most striking, however, was the rate of infection among foreign-born individuals. Thissurvey. 18.7 van In percent of foreign-born individuals were with t. b. infected compared to 1.8 percent of those born in the U.S. In 1999-2000, 6.9 million of the individuals with LTBI were foreign-born, as compared with 4.1 million U.S.-born; only 12 percent of the foreign-born and 16 percent of the U.S.-born had received treatment.

"The higher LTBI rates among some subgroups suggest that specific public health actions should be taken for and with immigrant communities, racial minorities and individuals living in poverty," Dr. Bennett said. „While LTBI is not infectious and latently individuals are not a threat to others. infected increased outreach for van provision of appropriate preventive treatment van education. diagnosis and prevent many future cases of active t. b.“ could