Table 2 The points of the exposure index
From: p53 in head and neck cancer: Functional consequences and environmental implications of TP53mutations
Exposure points | Tobacco exposure description | Alcohol exposure description | Chemical/dust exposure description |
|---|---|---|---|
0 | Non-smoker | No alcohol consumption | No exposure |
1 | Pack years 1-10 | Occasionally (1-2 times/month) | |
2 | Pack years 11-45 | Weekly (1-2 times/week) | Exposure to a chemical and/or dust |
3 | Pack years over 45 | Daily (heavy drinking) |