Estimated effects of proactive culling on the incidence of OTFW herd incidents inside RBCT areas as published by Jenkins and others (2008)

Estimate (and 95% CI)
1st to 2nd cull−3.6% (−33.1% to 38.9%)
2nd to 3rd cull−12.9% (−38.8% to 24.2%)
3rd to 4th cull−39.6% (−59.3% to −10.3%)
After 4th cull to end of during-trial period−31.8% (−48.5% to −9.7%)
  • OTFW, official tuberculosis-free status of the herd withdrawn; RBCT, Randomised Badger Culling Trial