Some of the variation in weight that is not. accounted for in Tables 1 or 2 is due to the variation. in the wood density of the different species. AdjustÂ­. ment factors have been developed to account for the. variation by species. The adjustment factors were. each species by the average density of all of the trees.
For example, regular smoking increases the risk of developing lung cancer; therefore smoking is a risk factor for lung cancer. The risk factors for mouth cancer include: 1  Smoking - studies indicate that a 40-per-day smoker has a risk five times great than a lifetime non-smoker of developing oral cancer.  Chewing tobacco.
Granted, most of the cons are results caused by mouthwash that has alcohol present. 1  Possible Links to Oral Cancer. Thereâs an ongoing debate on whether or not there are legitimate trends between developing oral cancer using mouthwash with alcohol. 2  Increased Tooth sensitivity.