Fig. 1

Inclusion of P1041 parent study participants with evaluable clinical information and serum samples. All children that met inclusion criteria were classified using 2015 NIH criteria for TB diagnosis into one of three groups: (1) confirmed TB: all children with a positive Mtb culture result; (2) unconfirmed TB: all children with ≥ 2 different categories of non-bacteriological evidence of TB; and (3) unlikely TB (non-TB): all children with no evidence, or insufficient evidence, of TB or a confirmed alternative diagnosis