Final answer:
To determine increased chance of a condition, calculate the relative risk. Ratios greater than 1 indicate increased risk associated with exposure to the risk factor.
Step-by-step explanation:
One easy method to determine the increased chance of a condition is by calculating the relative risk. This is done by dividing the incidence of the health-related event in a group exposed to the condition or variable by the incidence of the same event in a group not exposed. If the calculated relative risk is equal to or close to 1, it suggests no difference in risk between the groups. Ratios greater than 1 indicate an increased risk associated with exposure to the risk factor. For example, if the relative risk is 3.25, it means that the exposed group is 3.25 times more likely to have the health event than the non-exposed group.