Colon polyp facts. 1  Colon polyps are growths on the inner lining of the colon and are very common. 2  Colon polyps are important because they may be, or may become malignant (cancerous).  Changes in the genetic material of cells lining the colon are the cause of polyps.
DEFINITION of 'Consumer Price Index-CPI'. A measure that examines the weighted average of prices of a basket of consumer goods and services, such as transportation, food and medical care. The CPI is calculated by taking price changes for each item in the predetermined basket of goods and averaging them; the goods are weighted according to their importance.
Consumer Price Index. The Consumer Price Index is the most widely used measure of inflation and is often referred to as the cost of living index. It measures changes over time in the price of a fixed market basket of goods and services. There are two indexes. The CPI-U covers the expenditures of a wide range of urban consumers; the CPI-W covers only the expenditures of urban wages earners and clerical workers. The national CPI-U is typically used to measure inflation in Idaho because it more closely represents our cost of living.