Smokeless Tobacco Use Nearly Doubles Risk of Peripheral Artery Disease: Long-Term Study Findings

Peripheral artery disease (PAD) is a serious condition that affects blood flow to the limbs, increasing the risk of heart attack, stroke, and amputation. While cigarette smoking is a well-established risk factor, what about smokeless tobacco? A recent study published in Preventive Medicine Reports provides compelling evidence that smokeless tobacco use is linked to a significantly higher risk of PAD—similar to cigarette smoking.

Study Overview

Researchers analyzed data from the Atherosclerosis Risk in Communities (ARIC) study, spanning over 32 years. The goal: determine whether smokeless tobacco, a noncombustible form of tobacco, increases PAD risk.

• Participants: 14,344 adults
• Baseline Age: Mean 54.1 years
• Demographics: 54.8% female, 26.4% Black
• Follow-Up: Median 27.6 years (maximum 32.1 years)
• PAD Events: 635 incident cases

Key Findings

• Incidence Rate:
  • Smokeless tobacco users: 4.44 per 1,000 person-years
  • Non-users: 1.74 per 1,000 person-years
• Hazard Ratio (HR):
  • Current vs. never users: 1.94 (95% CI: 1.31–2.88)
• Comparison to Cigarette Smoking:
  • Smokeless tobacco users: 4.44 per 1,000 person-years
  • Cigarette smokers: 3.39 per 1,000 person-years

Bottom line: Smokeless tobacco use nearly doubles PAD risk, even after adjusting for demographics and cigarette smoking.

Why This Matters

PAD is often underdiagnosed but can lead to severe complications:

• Chronic leg pain and mobility issues
• Increased risk of cardiovascular events
• Higher healthcare costs and reduced quality of life

The study shows that noncombustible tobacco is not a safe alternative. Its impact on vascular health is comparable to smoking.

Health Strategies

1. Quit Tobacco—All Forms
   • Smokeless tobacco is not risk-free. Seek cessation programs.
2. Screen for PAD
   • If you use tobacco, ask your doctor about an ankle-brachial index (ABI) test.
3. Adopt Heart-Healthy Habits
   • Exercise regularly
   • Maintain a balanced diet
   • Control blood pressure and cholesterol
4. Monitor Symptoms
   • Leg pain during walking
   • Slow-healing wounds on feet or legs

Conclusion

Smokeless tobacco is not a safe alternative to smoking. Its association with PAD underscores the need for comprehensive tobacco cessation efforts. Protect your vascular health—quit tobacco, get screened, and adopt preventive measures.