CHANCES – “The Consortium on Health and Ageing: Network of Cohorts in Europe and the United States” project was a coordinated multi-country study that aimed to harmonize data from longitudinal cohort studies in Europe and the USA in order to produce evidence on ageing-related health characteristics and on determinants of healthy ageing among the elderly in these countries. Apart from SHARE, cohorts from thirteen studies were included in the project. Overall, 683,228 elderly, from twenty countries of the European Union, three other European countries, and three non-European countries were included in the cohorts participating in CHANCES. Further information on the project is available in the European Journal of Epidemiology (2014), Volume 29, Issue 12, pp 929–936.