Table 2

Criteria used to guide latent TB infection screening

Screening criterian (%)
Total n=93 geographical areas offering screening
CD4 count criteria57 (61.3)
 CD4 count ≤5053/57* (93)
 CD4 count ≤10053/57* (93)
 CD4 count ≤20053/57* (93)
 CD4 count ≤35051/57 (89.5)
 CD4 count ≤50045/57 (79)
 CD4 count >50033/57 (57.9)
 Other reported CD4 count criteria—individual assessment4/57 (7)
Country of origin criteria75 (80.6)
 High TB incidence country >40/100 000 pop.75/75 (100)
 Medium TB incidence country 20–40/100 000 pop.49/75 (65.3)
 Low incidence TB country <20/100 000 pop.35/75 (46.7)
 Other reported criteria—Eastern European countries1/75 (1.3)
Duration receiving ARV criteria52 (60)
 Under 6 months48/52 (92.3)
 Under 1 year42/52 (80.8)
 Under 2 years42/52 (80.8)
 Other reported criteria—individual assessment4/52 (7.7)
  • *53 centres offering screening to patients with a CD4 count of ≤200 are the same centres offering screening to those with CD4 counts in the ≤100 and ≤50 categories.

  • ARV, antiretroviral therapy.