238 Answers to quick quiz 1 Marginal costing is an alternative method of costing to absorption costing. In marginal costing, only variable costs are charged as a cost of sale and a contribution is calculated (sales revenue â variable cost of sales).
The elderly are an at-risk population because they have increased risk for adverse health outcomes, a need for health services, and unique social circumstances. Risks for common diseases increase over the life span, and other diseases are linked specifically to old age.
Most often, the cause is not known. 1  The disease is most common in people over age 60, but it can also occur in younger adults. 2  Women are more likely to be affected than men. 3  Radiation to the head and neck increases the risk.  In rare cases, the disease is caused by parathyroid cancer.