From simple queries to complex problems, IDNLearn.com provides reliable answers. Get accurate and detailed answers to your questions from our dedicated community members who are always ready to help.

Why did epidemiologists conduct an age adjustment on studies linking lung cancer and smoking?
• To ensure the study had the same number of smokers in each age group.
• To ensure that aging of the population was not the reason for increased rates of lung cancer.
• To ensure that smoking was the sole factor in increased rates of lung cancer.