Literature source records
PubMed, Europe PMC and Crossref records entered the literature stage in the published evidence summary.
UK Vaping & Nicotine Evidence Observatory
Evidence before conclusion.
SCC Vaping collects, checks and organises scientific research and official UK data. The public observatory shows what the evidence system currently contains, how it was assembled, and what is not yet ready for conclusion-sensitive synthesis.
Coverage is not certainty. Automated classification is provisional until governed human review.
Facts about the evidence system
What the latest release actually says
These are operational and coverage facts, not claims of health benefit, harm or causality.
Canonical candidate records
Records remaining in the quality-gated public evidence map after filtering and deduplication.
Clinical trials indexed
ClinicalTrials.gov records in the published registry reconciliation dataset.
Provisional RCT classifications
Records currently classified as randomised controlled trials. Classification remains provisional until review.
Human-reviewed records
The latest published readiness report records no conclusion-sensitive human review completed.
Synthesis-ready records
No record currently clears the comparator, outcome, effect-estimate and risk-of-bias review gate.
Evidence domains
Navigate the research without flattening the questions
Separate questions, comparators and evidence types remain separate by design.
Navigation tag count in the current quality-gated literature.
Smoking cessation evidence candidates across multiple study designs and comparators.
Cardiovascular evidence candidates, not a pooled effect estimate.
Youth-focused evidence candidates plus separate official prevalence sources.
Scientific firewall: the current release explicitly reports that automated metadata classification is provisional. Effect estimates, comparators, confounding, funding and risk-of-bias fields require source-grounded extraction and review before synthesis.
Transparency
Designed to be challenged
Collect
Broad discovery from scientific, trial, statistical and regulatory sources.
Validate
Deduplicate, quarantine and preserve provenance rather than silently discard.
Review
Conclusion-sensitive fields remain behind a human scientific review gate.
Publish
Only publication-safe aggregate and audit metadata reaches this public repository.