Slide 28. Mode of Treatment Administration in Persons Reported with TB, United States, 1993–2009.   In 1993, the reporting areas began providing information about mode of treatment administration on the individual TB case report form. Treatment administered as only directly observed therapy (DOT) increased from 21.7% in 1993 to 59.5% in 2009, the latest year with available data. The proportion of patients who received at least some portion of their treatment as DOT (based on combining the percentage of patients who received only DOT and the percent­age for whom some portion was self-administered) remained the same in 2009 as it was in 2008. In 2009, 89.8% of patients received at least some portion of their treatment as DOT.

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