Table 1. Outcome definitions for turn-around-times (TAT) and their respective sample.

Outcome	Definition	Sample
Culture Lab TAT	Number of days between a culture result date and the date that result was received by the HC	All cultures performed on participants belonging to study clusters
DST lab TAT	Number of days between a DST result date and the date that result was received by the HC	All DSTs performed on participants belonging to study clusters
DST lab TAT >60 days	The proportion of DST results with a laboratory TAT greater than or equal to 60 days	All DSTs performed on participants belonging to study clusters
Treatment TAT	Number of days between the result date of the first DST resistant to INH, RIF, or both and the date of a starting a second line regimen for the first time, or if a patient was on second line treatment, the removal of a medication to which the patient was resistant, or the addition of a medication to which patient was susceptible.	All patients with a DST resistant to INH, RIF, or both
Culture conversion TAT	Number of days between the result date of the first DST resistant to INH, RIF, or both and the sample date of the first of two negative consecutive cultures taken at least 30 days apart	All patients with a DST resistant to INH, RIF, or both who had a positive culture six month before or two months after the DST result date