Leisure is based on the "books at home" and "games" indicators, while social refers to having celebrations on special occasions and having friends around to play, as two separate indicators (see Annex 1 for a detailed description of indicators and dimensions for each age group). Although it would also have been preferable to keep leisure and social as separate dimensions for 17-18-year-olds, there is only one item in the EU-SILC relevant to each of these domains, so they are combined in one dimension. It uses two indicators: unmet medical needs and unmet dental needs.