Research estimate qalys in a number of different ways. one popular approach is called

The answer is: probability approach: Research estimate QALYs in a number of different ways; one popular approach is called the probability approach.

Explanation:

The probability approach is very popular and appropriate for estimating Quality-Adjusted Life Year (QALY) which is an assessment of the quality of health outcomes, as expressed by an index number; it is based on the assumption that health depends on the quality and span of life. The probability approach best evaluates the likelihood of occurrence of various indices of QALY.

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