title: Post-migration screening for active tuberculosis in Victoria, Australia.
abstract: METHODS
  Tuberculosis (TB) screening clinic.
  
  
  OBJECTIVE
  To determine TB prevalence at entry, screening yield and incidence in immigrants on a TB health undertaking (TBU) who were selected for post-migration screening due to an abnormal chest radiograph (CXR) in Victoria, Australia, in the years 1996-2006.
  
  
  METHODS
  Rates of notified TB calculated from linkage of a screening programme database with the Victorian TB database.
  
  
  RESULTS
  Prevalence at entry (cases notified between arrival in Australia and 6 months after the screening registration date) was 505 per 100,000 population; yield at entry (prevalent cases detected by the screening programme) was 420/100,000, and incidence (cases notified between 6 and 12 months after screening registration date) was 160/100,000 person-years. Persons issued a TBU after applying from within Australia (on-shore) had a prevalence of 1876/100,000, seven-fold higher than those issued a TBU outside Australia (off-shore, 254/100,000). The combination of an abnormal CXR and a tuberculin skin test ≥ 15 mm carried a prevalence of notified TB of 2907/100,000.
  
  
  CONCLUSIONS
  Selective post-migration screening can achieve a high yield of notified TB.
authors.affiliation: Department of Respiratory and Sleep Disorders Medicine, Western Hospital, Footscray, Victoria, Australia. michael.flynn@wh.org.au
authors.forename: M
authors.initials: M
authors.lastname: Flynn
authors.forename: L
authors.initials: L
authors.lastname: Brown
authors.forename: A
authors.initials: A
authors.lastname: Tesfai
authors.forename: T
authors.initials: T
authors.lastname: Lauer
mesh_terms: D000328:Adult; D016009:Chi-Square Distribution; D018563:Disease Notification / Q000706:statistics & numerical data*; D054242:Emigrants and Immigrants / Q000706:statistics & numerical data*; D004641:Emigration and Immigration / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008400:Mass Chest X-Ray / Q000706:statistics & numerical data; D008403:Mass Screening / Q000379:methods / Q000706:statistics & numerical data*; D011237:Predictive Value of Tests; D015995:Prevalence; D012042:Registries; D013997:Time Factors; D014374:Tuberculin Test / Q000706:statistics & numerical data; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis* / Q000208:ethnology*; D014739:Victoria / Q000453:epidemiology