A/HRC/22/25 60. Social security and income-maintenance schemes are particularly important for many persons with disabilities, given their overall low labour force participation rate. As reflected in the submissions to this study, there is a large variety of social protection systems, including disability pensions, so-called sickness benefits, work injury compensation and rehabilitation support. Many countries have in place both long-term income-replacement benefits for persons with permanent disabilities, and short-term benefits for persons who have reduced work capacity for a limited period of time. 61. The risk of losing social benefits when taking up formal work seems to be a major disincentive for persons with disabilities to enter the labour market, which aggravates an already difficult work situation of persons with disabilities. Indeed, social security provisions can in themselves become a “benefit trap” leading to low labour force participation. The conditions attached to and the size of income-replacement benefits is seen as influencing the motivation for and, therefore, actual labour market participation. Disability classification systems in many countries continue to categorize people in terms of impairment levels, and lay down conditions of eligibility that often require persons with disabilities to choose between receiving a disability-related allowance and taking a job. 62. Measures to facilitate the transition from receiving benefits to performing work have been introduced in some countries and should be further encouraged. For instance, obligating employers to provide occupational health services, reintegration and employment support and work incentives have encouraged persons with disabilities to work. Other examples are so called bridging arrangements, transitional arrangements which allows persons with disabilities who take up work to retain benefits until a certain wage threshold is reached, to return to receiving benefits without delay should they lose their jobs, and to retain their right to benefits in kind – such as health care – for a specified period. It is important that persons with disabilities and their representative organizations be consulted with and involved in the introduction or development of such measures. C. Data collection, accountability and monitoring mechanisms 63. The scarcity of statistics on employment of persons with disabilities makes it difficult to address the situation of their low representation in working life. In many countries, the large majority of persons with disabilities are not registered as being employed or unemployed, which effectively makes them invisible in labour market efforts. In other countries, compiling data on the population with disabilities is challenging because disability is categorized as sensitive personal data, the collection of which is prohibited by personal data laws or similar. 64. States should design indicators to monitor effectively their progress in implementing the right to work, based on ILO indicators such as the rate of unemployment, underemployment and the ratio of formal to informal work. 26 Also, States parties should undertake systematic collection of disaggregated data as a basis for a proper assessment of compliance with their obligations under article 27 of the Convention.27 Data should be collected in accordance with article 31 of the Convention and disaggregated by type of disability and type of work with a view to designing effective and targeted programmes to promote employment of persons with disabilities. 26 27 16 Committee on Economic, Social and Cultural Rights general comment No.18 (2005) on the right to work, para. 46. See CRPD/C/ARG/CO/1, CRPD/C/HUN/CO/1, CRPD/C/CHN/CO/1, CRPD/C/ESP/CO/1.