title: Frequent shopping by men and women increases survival in the older Taiwanese population.
abstract: BACKGROUND
  Active ageing is a key to healthy ageing; shopping behaviour is an economically relevant activity of the elderly.
  
  
  METHODS
  Analysis was based on the NAHSIT 1999-2000 dataset. A total of 1841 representative free-living elderly Taiwanese people were selected and information included demographics, socioeconomic status, health behaviours, shopping frequencies, physical function and cognitive function. These data were linked to official death records. Cox proportional hazard models were used to evaluate shopping frequency on death from 1999-2008 with possible covariate adjustment.
  
  
  RESULTS
  Highly frequent shopping compared to never or rarely predicted survival (HR 0.54, 95% CI 0.43 to 0.67) with adjustment for physical function and cognitive function and other covariates HR was 0.73 (95% CI 0.56 to 0.93). Elderly who shopped every day have 27% less risk of death than the least frequent shoppers. Men benefited more from everyday shopping than women with decreased HR 28% versus 23% compared to the least.
  
  
  CONCLUSIONS
  Shopping behaviour favourably predicts survival. Highly frequent shopping may favour men more than women. Shopping captures several dimensions of personal well-being, health and security as well as contributing to the community's cohesiveness and economy and may represent or actually confer increased longevity.
authors.affiliation: Division of Health Policy Research and Development, Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County 350 Taiwan, ROC. yhchang@nhri.org.tw
authors.forename: Yu-Hung
authors.initials: YH
authors.lastname: Chang
authors.forename: Rosalind Chia-Yu
authors.initials: RC
authors.lastname: Chen
authors.forename: Mark L
authors.initials: ML
authors.lastname: Wahlqvist
authors.forename: Meei-Shyuan
authors.initials: MS
authors.lastname: Lee
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000375:Aging; D003132:Commerce; D005260:Female; D006304:Health Status; D006306:Health Surveys; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D016016:Proportional Hazards Models; D016019:Survival Analysis; D013624:Taiwan