Is there a right age for case finding in elderly people?

If age is a useful basis for determining a screening policy the benefit of the resulting interventions should vary with age. The choice of the screening age will be such as to maximize the benefit. Data from a study of the screening of elderly people by a Health Visitor produced no evidence to support the choice of 75 as minimum age for screening in primary care. Indeed there was a suggestion that age might be more useful as a maximum rather than a minimum criterion.