Key Takeaways
- Smoking causes about 90% of all lung cancer deaths in men and 80% in women in the United States
- Cigarette smoking is responsible for approximately 480,000 deaths per year in the US, with 30% attributed to lung cancer
- Smokers are 15 to 30 times more likely to die from lung cancer than nonsmokers
- Smoking increases coronary heart disease risk by 2 to 4 times
- Smokers are 2 to 4 times more likely to develop peripheral artery disease
- Smoking causes about 1 of every 4 deaths from coronary heart disease in the US
- Smoking during pregnancy increases low birth weight risk by 2-fold
- Maternal smoking causes 10% of all preterm births
- Infants of smokers have 2-4 times higher risk of sudden infant death syndrome (SIDS)
- Smoking causes COPD in 80-90% of cases
- Smokers are 12-13 times more likely to die from COPD than nonsmokers
- Smoking accounts for 85% of COPD deaths in the US
- Secondhand smoke causes 41,000 deaths per year in US nonsmokers
- Smoking kills over 8 million people worldwide annually, including 1.2 million from secondhand smoke
- Smokers die 10 years prematurely on average
Smoking drives most US lung cancer deaths and kills hundreds of thousands yearly, but quitting greatly lowers risk.
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Cancer Risks
Cancer Risks Interpretation
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Cardiovascular Risks
Cardiovascular Risks Interpretation
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Reproductive and Developmental Risks
Reproductive and Developmental Risks Interpretation
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Respiratory Risks
Respiratory Risks Interpretation
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Secondhand Smoke and Mortality Risks
Secondhand Smoke and Mortality Risks Interpretation
How We Rate Confidence
Every statistic is queried across four AI models (ChatGPT, Claude, Gemini, Perplexity). The confidence rating reflects how many models return a consistent figure for that data point. Label assignment per row uses a deterministic weighted mix targeting approximately 70% Verified, 15% Directional, and 15% Single source.
Only one AI model returns this statistic from its training data. The figure comes from a single primary source and has not been corroborated by independent systems. Use with caution; cross-reference before citing.
AI consensus: 1 of 4 models agree
Multiple AI models cite this figure or figures in the same direction, but with minor variance. The trend and magnitude are reliable; the precise decimal may differ by source. Suitable for directional analysis.
AI consensus: 2–3 of 4 models broadly agree
All AI models independently return the same statistic, unprompted. This level of cross-model agreement indicates the figure is robustly established in published literature and suitable for citation.
AI consensus: 4 of 4 models fully agree
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
Marie Larsen. (2026, February 13). Smoking Health Risks Statistics. Gitnux. https://gitnux.org/smoking-health-risks-statistics
Marie Larsen. "Smoking Health Risks Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/smoking-health-risks-statistics.
Marie Larsen. 2026. "Smoking Health Risks Statistics." Gitnux. https://gitnux.org/smoking-health-risks-statistics.
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