Households with older adults tend to spend more on care, both in absolute terms and as a percentage of total spending (see figure 22). On top of that, older women must often take on the role of main care provider for their spouses— a task that can be hard enough to even hasten their own vulnerability. Incudes households which report expenditure on care. Although the Convention affirms the right of all persons with disabilities to live in the community on an equal basis with the rest of the population, ensuring that this right can be realized in practice requires setting up a proper network of home care, staff and other support services and technical aids. It is important to bear in mind, however, that the data available are not entirely comparable between countries, because the questions contained in the various measurement instruments —which can be censuses, household surveys or specialized surveys— refer to very different degrees of disability'. Care for persons with disabilities can be the mechanism for ensuring the exercise of their rights and participation in society.