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.
One of the key studies showing an increased risk found that older adults with a history of moderate traumatic brain injury had a 2.3 times greater risk of developing Alzheimer's than seniors with no history of head injury, and those with a history of severe traumatic brain injury had a 4.5 times greater risk.