How this page evolved

Every published version is kept. Each entry shows what changed and why. Earlier versions can be restored by moderators, but only if the material they rely on is still available.

1. Revision 3Oct 4, 2026, 8:45 AMLiveAI-organised, reviewed

   Added a new randomized trial of contingency management among adults experiencing homelessness (higher 6-month abstinence with incentives), a health-economics perspective on three implementation challenges (reach, short-lived effects, funding), and a commentary arguing contingency management has robust trial support for perinatal smoking cessation. Updated the finding, uncertainty, open questions and guidance to reflect these; kept the existing pregnancy, postpartum and implementation material.

   • · The main finding was rewritten.
   • · Updated “What the evidence shows”.
   • · Updated “Why delivery matters as much as the money”.
   • · 3 new sources cited.
   • · The note on uncertainty changed.
   • · The key takeaways were revised.
   • · 1 new piece of guidance for specific situations.
   • · 1 new open question.
2. Revision 2Oct 3, 2026, 6:22 PMAI-organised, reviewed

   AI-prepared Starting Map from live research.

   • · First published version.