You are planning a case-control study of lung cancer to test the hypothesis that vegetable consumption is protective against lung cancer. would you match on smoking? explain your answer.

The answer is yes.

Explanation:

Due to the fact that a very high percentage of lung cancer develops in people who had smoked, it should be necessary to include also the main cause of this cancer in the study of a factor that can prevent or avoid it. If one of the main causes is also, for example, genetics, then it should be also considered in the study.

Explanation:

Insulin helps the cells absorb glucose, reducing blood sugar and providing the cells with glucose for energy. When blood sugar levels are too low, the pancreas releases glucagon. Glucagon instructs the liver to release stored glucose, which causes blood sugar to rise.