Factors associated with ADL and IADL dependency among Korean centenarians: Reaching the 100-year-old life transition

Hyunjee Kim, Taeyong Lee, Sokgoo Lee, Keonyeop Kim, Sungkook Lee, Sin Kam, Sangnam Ahn, Jinmyoung Cho, Marcia G. Ory

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


This study aims to examine the functional status of Korean centenarians, who have crossed the relatively rare but increasingly common life transition of living for a century. As functional health is one of the essential components of healthy aging, our primary objective is to identify the correlates of two aspects of functioning, activities of daily living (ADL) and instrumental activities of daily living (IADL). Using a census survey conducted by the Korean National Statistical Office (KNSO) in 2005, we documented ADL and IADL limitations and analyzed their relationship to sociodemographic factors, health behaviors, social connectedness, and presence of diseases. The study participants were 796 adults aged 100 years or older. The mean age was 101.5 ± 1.8, and females were 89.9% of the sample. Both ADL and IADL dependences were more common among females, those who did less physical activity, those who had more diseases, and those who did not participate in social activities. Intervention programs designed to address life-stage issues such as focusing on initiating healthy behaviors from youth, managing chronic diseases in mid-life, and fostering social participation in later life are recommended ways to improve functional independence and promote healthy aging among current and future generations of Korean centenarians.

Original languageEnglish (US)
Pages (from-to)243-264
Number of pages22
JournalInternational Journal of Aging and Human Development
Issue number3
StatePublished - Jan 1 2012

ASJC Scopus subject areas

  • Aging
  • Developmental and Educational Psychology
  • Geriatrics and Gerontology


Dive into the research topics of 'Factors associated with ADL and IADL dependency among Korean centenarians: Reaching the 100-year-old life transition'. Together they form a unique fingerprint.

Cite this