How is risk to others or self evaluated?

Risk: Uncertain of your question risk of what. Most health conditions have risk factors that contribute to decision making. I hope this helps if not please be more specific.

Relatively: If a person is indiscriminately violent they can hurt themselves and others. If a person is passively disabled they may neglect themselves to a dangerous extent and, if they are responsible for others, like children, they may be a danger to them by neglect.