title: Health profile of centenarians in Portugal: a census-based approach.
abstract: BACKGROUND
  The number of centenarians is rapidly increasing in Europe. In Portugal, it has almost tripled over the last 10 years and constitutes one of the fastest-growing segments of the population. This paper aims to describe the health and sociodemographic characteristics of Portuguese centenarians as given in the 2011 census and to identify sex differences.
  
  
  METHODS
  All persons living in Portugal mainland and Madeira and Azores islands aged 100 years old at the time of the 2011 census (N = 1,526) were considered. Measures include sociodemographic characteristics and perceived difficulties in six functional domains of basic actions (seeing, hearing, walking, cognition, self-care, and communication) as assessed by the Portuguese census official questionnaires.
  
  
  RESULTS
  Most centenarians are women (82.1 %), widowed (82 %), never attended school (51 %), and live in private households (71 %). The majority show major constraints in seeing (67.4 %), hearing (72.3 %), and particularly in their mobility (83.7 % cannot/have great difficulties in walking/climbing stairs and 80.7 % in bathing/dressing). In general, a better outcome was found for reported memory/concentration and understanding, with 39.1 % and 42.5 % presenting no or mild difficulty, respectively. Top-level functioning (no/mild difficulties in all dimensions concurrently) was observed in a minority of cases (5.96 %). Women outnumber men by a ratio of 4.6, and statistically significant differences were found between men and women for all health-related variables, with women presenting a higher percentage of difficulties.
  
  
  CONCLUSIONS
  Portuguese centenarians experience great difficulties in sensory domains and basic daily living activities, and to a lesser extent in cognition and communication. The obtained profile, though self-reported, is important in considering the potential of social and family participation of this population regardless of their functional and sensory limitations. Based on the observed differences between men and women, gender-specific and gender-sensitive interventions are recommended in order to acknowledge women's worse overall condition.
authors.affiliation: Institute of Biomedical Sciences Abel Salazar (UNIFAI and CINTESIS), University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
authors.forename: Oscar
authors.initials: O
authors.lastname: Ribeiro
authors.affiliation: Institute of Biomedical Sciences Abel Salazar (UNIFAI and CINTESIS), University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
authors.forename: Laetitia
authors.initials: L
authors.lastname: Teixeira
authors.affiliation: Institute of Biomedical Sciences Abel Salazar (UNIFAI and CINTESIS), University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal ; Polytechnic Institute of Viseu (ESEV and CI&DETS) , Rua Maximiano Aragão, 3504 - 501 Viseu, Portugal.
authors.forename: Lia
authors.initials: L
authors.lastname: Araújo
authors.affiliation: Institute of Biomedical Sciences Abel Salazar (UNIFAI and CINTESIS), University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
authors.forename: Constança
authors.initials: C
authors.lastname: Paúl
keywords: Census; Centenarians; Cognition; Communication; Functional status; Gender; Health; Longevity; Portugal