Assessment by meta-analysis of interferon-gamma for the diagnosis of tuberculous peritonitis

Table 2 Characteristics of included studies

Ref.	TB/N-TB patients	Reference standard	Cross-sectional design	Consecutive or random	Blinded design	Prospective
Ribera et al[12]	16/70	Bac/His or Clin	No	Yes	No	Yes
Soliman et al[13]	17/33	Bac/His or Clin	No	Yes	Yes	Yes
Sathar et al[14]	30/62	Bac/His	No	Yes	No	Yes
Saleh et al[28]	14/27	Bac/His or Clin	No	Yes	No	Yes
Sharma et al[29]	31/88	Bac/His	Yes	Yes	Yes	Yes
Sathar et al[30]	23/29	Bac/His or Clin	No	Yes	No	Yes

TB: Tuberculosis; Bac: Bacteriology; His: Histology; Clin: Clinical course.