Statistics and risk
Regression analysis
A statistical method used to estimate relationships while accounting for other variables.
What it means
Definition
Regression analysis: Regression analysis can adjust for measured factors, but it cannot fix poor data or unknown confounding. Adjusted results still need cautious interpretation.
What it can tell you
It can help clarify what sort of evidence or claim is being discussed.
What it cannot tell you
It cannot, by itself, prove that the headline is accurate or clinically important.
Headline trap
Why this matters in headlines
A study may adjust for age and sex but still miss diet, income, illness severity, or other important factors.