Figure 2. Quantiferon Gold-In-Tube (QFT) and Tuberculin Skin (TST) positivity among children ≤60 months, using different definitions for TST cut offs for positivity.
*age-specific cut-off proposed by Chan et al.28 (positive TST defined as ≥21mm from 0-1 years, ≥18mm from age 2-3 years, and ≥13mm from 4-5 years).