Answer:
15-25% of survivors were incapacitated .
Explanation:
Norris and his research companions realized that 41% of the empirical studies they analyzed showed that disaster survivors may show evidence of severe and even very severe disability. This percentage, related to the demand for mental health services in communities that have experienced disasters, reveals that between 15-25% of survivors are emotionally disabled, many of them do not even recognize this disability, which limits the execution of an efficient treatment.