Introduction. According to the National Institute of Statistics and Informatics (INEI), in 2017 there were three million people with disabilities in our country. Of these, 5% have a significant functional limitation, so they have to require a caregiver; who can see affected his physical and emotional activity, and eventually, they get sick. Objective. To establish the relationship between the burden of the caregiver and level of functionality of the person with disabilities. Methods. 50 caregivers and 50 people with disabilities were included. The Functional Independence Measure (FIM) is an accepted instrument for measuring disability, in three categories: complete dependence, relative dependence and independence. The Zarit and Zarit Test measures the burden of caregiver; classifying it into three categories: absence of burden, light burden and intense&...