What is the Global Burden of Disease Attributable to Secondhand Smoke?
The global burden of disease attributable to secondhand smoke is substantial. According to estimates by the _Global Burden of Disease (GBD)_ study, secondhand smoke exposure leads to millions of _deaths_ and _disability-adjusted life years (DALYs)_ lost each year. The burden is disproportionately higher in _low- and middle-income countries_, where smoking rates and exposure levels are often higher.
