Table 2.

PBS (IU/ml)	Lectins-PBS (IU/ml)	TB-PBS (IU/ml)	Result
	any	≥0.35 and ≥ PBS/4	TB positive
	≥0.5	<0.35	TB negative
≤8	≥0.5	≥0.35 and < PBS/4	TB negative
	<0.5	<0.35	uncertainty
	<0.5	≥0.35 and < PBS/4	uncertainty
>8	any	any	uncertainty