adequate and systematic training in the rights of the child for professional groups working with and for children; 5. Encourages States to strengthen their national statistical capacities, particularly in the area of juvenile justice and on children in detention, and, as far as possible, to use statistics disaggregated by, inter alia, age, sex and other relevant factors that may lead to disparities, and other statistical indicators at the national, subregional, regional and international levels to develop and assess social policies and programmes so that economic and social resources are used efficiently and effectively for the full realization of the rights of the child; II. MAINSTREAMING OF THE RIGHTS OF THE CHILD 6. Affirms its commitment to effectively integrate the rights of the child in its work and that of its mechanisms in a regular, systematic and transparent manner, taking into account specific needs of boys and girls; 7. Decides to incorporate into its programme of work sufficient time, at a minimum an annual full-day meeting, to discuss different specific themes on the rights of the child, including the identification of challenges in the realization of the rights of the child, as well as measures and best practices that can be adopted by States and other stakeholders, and to assess the effective integration of the rights of the child in its work, beginning in 2009; 8. Urges all stakeholders to take into full account the rights of the child in the universal periodic review, including in the preparation of information submitted for the review and during its dialogue, outcome and follow-up; 9. Encourages States to prepare the information described in paragraph 15 (a) of Council resolution 5/1 through broad consultation at the national level with all relevant stakeholders, including non-governmental organizations active in addressing the rights of the child; 10. Requests special procedures and other human rights mechanisms of the Council to integrate the rights of the child into the implementation of their mandates and to include in their reports information on and qualitative analysis of child rights;