Non-smokers with the lowest levels of OGG1 also had a higher risk of lung cancer, although their overall risk of cancer was much lower than that of the smokers.

• 不抽烟人士如果体内OGG1活动水平太低，也有很大的可能会患上肺癌，但是，他们的能患上肺癌的几率却还是小于那些抽烟的人。