Urethane is a chemical that scientists think probably causes cancer in people, based on studies in animals and some hints in human data — so it’s best to avoid breathing it in or swallowing it.
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
probability
Can suggest probability/likelihood
Assessment Explanation
The claim accurately reflects IARC’s official classification system, which uses Group 2A ('probably carcinogenic to humans') based on a weight-of-evidence review of animal and limited human data. IARC’s classifications are not claims of proven causation but rather expert evaluations of the strength of evidence. The use of 'probably' aligns precisely with IARC’s terminology and is scientifically appropriate. No overstatement or understatement is present.
More Accurate Statement
“Urethane is classified by the International Agency for Research on Cancer (IARC) as a Group 2A carcinogen, meaning there is sufficient evidence of carcinogenicity in animals and limited evidence in humans, leading to the conclusion that it is probably carcinogenic to humans.”
Context Details
Domain
medicine
Population
human
Subject
Urethane
Action
is classified
Target
as a Group 2A carcinogen by the International Agency for Research on Cancer (IARC), meaning it is probably carcinogenic to humans
Intervention Details
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.
Evidence from Studies
No evidence studies found yet.