Compare two treatments. Treatment A provides an improvement of 0.1 QALYs at a cost of $2,000, whereas Treatment B provides an improvement of 0.2 QALYs at a cost of $5,000. Which treatment will planners prefer by cost-efficiency criteria?a. treatment A because it is cheaper.
b. treatment B because it provides a greater improvement.
c. treatment A because it has a lower cost per QALY.
d. treatment B because it has a lower cost per QALY.

the treatment that planners would prefer by cost-efficiency criteria is (c) treatment A because it has a lower cost per QALY.

Explanation:

The cost-effectiveness of a therapeutic or preventive intervention is the ratio of the cost of the intervention to a relevant measure of its effect.

a. steroid--> influences moods in the limbic system

b. inhalant--> dissolves fatty tissue in the brain

c. marijuana--> changes how the hippocampus processes sensations