Cost-effectiveness of contact screening strategies for tuberculosis among high-school adolescents in South Korea

H. Sohn, H. Y. Kim, S. H. Lee

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


B A C K G R O U N D: Effective latent tuberculous infection (LTBI) control among adolescents is a critical component of tuberculosis (TB) elimination in Korea. O B J E C T I V E: To compare the cost-effectiveness of the following contact screening strategies for LTBI among high-school adolescents after TB outbreaks: QuantiFERON w -TB Gold In-Tube (QFT-GIT), the tuberculin skin test (TST), or TST/QFT-GIT (two-step strategy). M E T H O D: The costs of post-TB outbreak screening strategies were calculated using a mixed (top-down and bottom-up) cost analysis method and expressed in 2015 US dollars. Cost-effectiveness was evaluated using a decision analysis model from the health system perspective, comparing cumulative health care costs and the total number of TB cases averted. R E S U L T S: In a hypothetical cohort of 1000 students, screening using the TST-alone strategy averted 1.6 TB cases at a total cost of US$52 566. The QFT-GIT-alone strategy helped avert 2.0 TB cases, but was associated with a much higher total cost (US$108 435), resulting in an incremental cost-effectiveness ratio of US$140 933/ TB case averted. The two-step TST/QFT-GIT strategy was worse than the TST-alone strategy, averting 1.3 TB cases at US$75 267. C O N C L U S I O N: The TST-alone strategy was the most cost-effective; the QFT-GIT-alone strategy averted the greatest number of TB cases but incurred the highest cost in contact investigation for school TB outbreaks.

Original languageEnglish (US)
Pages (from-to)496-503
Number of pages8
JournalInternational Journal of Tuberculosis and Lung Disease
Issue number5
StatePublished - May 1 2018


  • Contact screening
  • Cost-effectiveness
  • Latent tuberculous infection
  • QuantiFERONw test
  • Tuberculin skin test

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Infectious Diseases


Dive into the research topics of 'Cost-effectiveness of contact screening strategies for tuberculosis among high-school adolescents in South Korea'. Together they form a unique fingerprint.

Cite this