GBD 2023 quantifies global second-hand smoke burden and disease impact

The Global Burden of Disease Study 2023 estimated that 2.71 billion people worldwide, including 767 million children aged 0-14, were exposed to second-hand smoke in 2023, using the comparative risk assessment framework across 204 countries. The study reported that SHS exposure accounted for 1.66 million deaths and 44.8 million DALYs globally, with ischaemic heart disease the leading contributor overall and lower respiratory infections predominating among children; despite a 22.2% decline in age-standardised prevalence since 1990, absolute numbers of exposed individuals rose sharply in sub-Saharan Africa and North Africa and the Middle East.

Most relevant for: Relevant to populations exposed to second-hand smoke, particularly women, children under 15, and residents of sub-Saharan Africa and North Africa/Middle East regions where exposure has been rising.

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