Concurrent use of khat and tobacco is associated with verbal learning and delayed recall deficits

Medicine & Life Sciences

• Catha 100%
• Verbal Learning 82%
• Tobacco Use 65%
• Tobacco Products 32%
• Memory and Learning Tests 15%
• Smoke 10%
• Smokers 9%
• Yemen 8%
• Non-Smokers 5%
• Short-Term Memory 5%
• Outpatients 4%
• Learning 4%
• Memory 4%
• Students 3%
• Control Groups 3%