permanent disability (PD)

In workers’ compensation cases, illness or injury (impairment of the normal use of a body part) expected to continue for the lifetime of the injured worker that prevents the person from performing the functions of his or her occupation, therefore, impairing his or her earning capacity. Permanent disability may be partial or total.

permanent disability rating

In workers’ compensation cases, determination of the percentage of total disability of the injured worker. Considerations are the nature of the injury, occupation and age of the worker at the time of injury, and diminished ability to compete in the open labor market. The disability, not the pathological condition, is rated; thus a disease is not rated, but its permanent effect on the employee’s working capability is.

Persistency

MEDICAL,USA: 1. Percentage of insurance policies that remain in force. 2. Percentage of insurance policies that have not lapsed. 3. Retention of business occurring when an insurance policy remains in force because of continued payment of the policy’s premiums.
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A measure of the length of time for which a policy remains on the books before it is lapsed by the insured.
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US: A term used to refer to the length of time insurance remains continuously in force.
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UK: The renewal quality of insurance policies, particularly life policies. High persistency means that a high proportion of policies stay in force until the end of the policy term. Low persistency means a high percentage of lapses.