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Khat and oral cancer.
H E Soufi1, M Kameswaran, T Malatani
1Department of Medicine, King Saud University, Abha Branch, College of Medicine, Saudi Arabia.
The Journal of Laryngology and Otology
|August 1, 1991
Summary
Long-term khat chewing is strongly correlated with oral cancer in Saudi Arabia. This study highlights a significant link between this practice and head and neck malignancies, particularly among non-smokers.
Area of Science:
- Oncology
- Public Health
- Epidemiology
Background:
- Khat (Catha edulis) chewing is a prevalent practice in certain regions, including Saudi Arabia.
- Previous research has suggested potential links between khat use and various health issues.
- The specific association between khat chewing and oral cancer in the Asir region requires further investigation.
Purpose of the Study:
- To investigate the correlation between khat chewing and the incidence of oral and head and neck cancers.
- To identify patterns of cancer presentation among khat chewers in the Asir region.
Main Methods:
- A retrospective survey of cancer cases over a two-year period.
- Analysis of patient history, focusing on khat chewing habits and smoking status.
- Categorization of cancer types, including oral, metastatic cervical lymph node, and parotid tumors.
Main Results:
- Out of 28 head and neck cancer patients, 10 reported a history of khat chewing.
- All 10 khat-chewing patients were non-smokers and had chewed khat for 25 years or longer.
- Eight of these patients presented with oral cancers, one with metastatic cervical lymph node cancer, and one with a parotid tumor.
Conclusions:
- A strong correlation exists between long-term khat chewing and oral cancer in the Asir region.
- Khat chewing is a significant risk factor for oral and potentially other head and neck cancers, independent of smoking.
- These findings warrant increased attention and public health interventions regarding khat use.