Ribeiro, OscarAraújo, LiaTeixeira, LaetitiaBrandão, DanielaDuarte, NatáliaPaúl, Constança2016-11-172016-11-172017Ribeiro, O., Araújo, L., Teixeira, L., Brandão, D., Duarte, N., & Paúl, C. (2017). Oporto Centenarian Study. In N. A. Pachana (Ed.), Encyclopedia of Geropsychology (pp. 1–7). Springer Singapore. https://doi.org/10.1007/978-981-287-080-3_141-1http://hdl.handle.net/10400.19/3441This entry presents the first population-based study conducted in Portugal, the Oporto Cente- narian Study (PT100). It starts by providing an overview of the centenarian population in Portu- gal and then describes PT100’s methodological approach (sampling, procedures, and measures) and synthesizes its main findings on three core dimensions considered to be determinants of qual- ity of life in extreme old age (Serra et al. 2011): cognitive and physical functioning, social resources (social relationships and social activi- ties), and personal attitude toward life (valuation of life). An outlook of current satellite projects of the PT100 is presented at the end.engCentenariansOportobook part10.1007/978-981-287-080-3_141-1