The cascade of care for pregnant women with latent tuberculosis infection in a high-income country

Infect Dis (Lond). 2023 Sep;55(9):635-645. doi: 10.1080/23744235.2023.2228406. Epub 2023 Jun 30.

Abstract

Background: Pregnant women have an increased risk of developing active tuberculosis (TB). The Public Health Agency of Sweden recommends screening of active TB and latent tuberculosis infection (LTBI) among pregnant women from countries with high TB incidence at Maternal Health Care (MHC) clinics. In Östergötland County, Sweden, a screening program has been active since 2013. The aim of this study was to evaluate this screening program and the cascade of care for LTBI among pregnant women in Östergötland county.

Methods: Data were obtained from pregnant women screened for TB at MHC clinics and subsequently referred to the pulmonary medicine clinic or the clinic of infectious diseases in Östergötland County between 2013 and 2018. The Public Health Agency of Sweden's national database for active TB was used to analyse if any women developed active TB up to two years after the screening process.

Results: A total of 439 women were included. Nine cases of active TB were discovered during the screening process and two developed active TB afterward. 177 women were recommended LTBI treatment and variables significantly associated with a decreased likelihood of being recommended treatment were increasing age, time in Sweden, and parity. 137 women received and 112 (82%) completed treatment. 14 women discontinued treatment due to adverse effects.

Conclusion: Screening of pregnant women from countries with high TB incidence at MHC clinics led to the discovery of several cases of active TB. The completion rate of LTBI treatment was high and few discontinued due to adverse effects.

Keywords: Cascade of care; Pregnancy; isoniazid; latent tuberculosis infection; rifampicin; tuberculosis.

MeSH terms

  • Female
  • Humans
  • Latent Tuberculosis* / diagnosis
  • Latent Tuberculosis* / drug therapy
  • Latent Tuberculosis* / epidemiology
  • Mass Screening
  • Pregnancy
  • Pregnant Women
  • Sweden / epidemiology
  • Tuberculosis* / diagnosis