In patients who have had a myocardial infarction or revascularization procedure, secondary prevention of coronary artery disease by comprehensive risk factor modification reduces mortality, decreases subsequent cardiac events, and improves quality of life.oronary artery disease (CAD) is the leading cause of death in the United States, with more than 1 million new and recurrent cardiovascular events occurring each year, and its prevalence and impact are expected to grow.
The ratio scale of measurement is the most informative scale. It is an interval scale with the additional property that its zero position indicates the absence of the quantity being measured. You can think of a ratio scale as the three earlier scales rolled up in one.
Details. Ratio: In simple mathematics, relationship or comparison between two more numbers is known as ratios. Ratios are normally written as : to show the connection between two numbers, for instance.If there are 2 red balls and 3 blue ball on the table you could write there ratio as: [2:3].Unfortunately there is no systematic way to calculate ratio, but there is an easy way around for doing the same, you can try the below formulas to calculate ratio in Excel.ROUND function in excel is used to trim down (reduce) a given value to a specific number of decimal places.f there are 2 red balls and 3 blue ball on the table you could write there ratio as: [2:3]. Unfortunately there is no systematic way to calculate ratio, but there is an easy way around for doing the same, you can try the below formulas to calculate ratio in Excel.