Cover Image

Not for Sale



View/Hide Left Panel

Attachment 1

Morbidity Categories

  1. Moderate localized pain and/or mild systemic reaction or impairment requiring minor change in normal activities.

  2. Moderate pain and/or moderate impairment requiring moderate change in normal activities, e.g., house-bound or in bed.

  3. Severe pain, severe short-term impairment, or hospitalization.

  4. Mild chronic disability (not requiring hospitalization, institutionalization, or other major limitation of normal activity).

  5. Moderate to severe chronic disability (requiring hospitalization, special care or other major limitation of normal activity).

  6. Total impairment.

  7. Reproductive impairment resulting in infertility.

  8. Death.

you might judge that two cases of moderate to severe disability are equivalent (in how bad they seem to you) to one death. If so, you would enter the number “2” in the space next to Category E in column 1 on Attachment 2. Alternatively, you might believe that people, especially children, can adapt reasonably well to severe disability, and therefore you would be willing to accept a larger number of cases in lieu of one death, if you were willing to balance 25 cases of severe disability against one death, you would enter the number “25” in the space next of Category E in column 1. At the other extreme, you might consider severe disability to be worse than death, and be willing to balance only 0.5 cases of moderate to severe lifelong disability starting under 1 year of age against one death. You would then enter 0.5. Bear in mind that Category E refers to “moderate to severe chronic disability” that requires continuing hospitalization or special care. While the specific nature and severity of a “moderate to severe chronic disability” would naturally influence your rating, we are aiming here to get an overall sense of your disutility across the range of moderate to severe chronic disabilities.

As another example, let’s consider one of the acute morbidity categories measured in days, say A, moderate localized pain and/or mild systemic reaction requiring minor change in normal activities. Again, we want to assess units of the morbidity category that would just



The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement