Table 1.

Characteristics of included studies.

					Samples (N)
Author	Year	Country/where the research was conducted	TB incidence (/100,000)	Study type	PTB patients	non-TB controls	Reference standard	Index test	Cut-off (MIG)
Manngo PM[11]	2019	South Africa	781 (543–1060)	Cohort	35	69	Positive culture, Xpert MTB/RIF	MIG	940.3 pg/mL
La Manna MP[12]	2018	Italy	6.1 (5.3–7.1)	Cohort	27	20	Positive culture, Xpert MTB/RIF	MIG	6.456 relative fluorescence intensity
Jacobs R[13]	2016	South Africa	781 (543–1060)	Cohort	22	33	Positive culture	MIG	1700 pg/mL
Kim S[14]	2015	Republic of Korea	77 (71–82)	Cohort	28	29	Positive culture	MIG	9.18
Chung W[15]	2015	Republic of Korea	77 (71–82)	Cohort	201	52	Positive culture	MIG	155.1 pg/mL
Lee K[16]	2015	Republic of Korea	77 (71–82)	Cohort	165	256	Positive culture	MIG	111.4 pg/mL
Chung WY[17]	2014	Republic of Korea	77 (71–82)	Cohort	158	58	Positive culture	MIG	2183 pg/mL
Wang X[18]	2012	China	64 (55–74)	Cross sectional	178	156	Positive culture, positive sputum smears	MIG	368.5 pg/mL

MIG = monokine induced by gamma interferon, PTB = pulmonary tuberculosis, TB = tuberculosis.