Panel on Health and Ageing of Singaporean Elderly (PHASE) is a longitudinal panel study that aims to develop a profile of the changes in physical, social and mental health of Singaporeans (citizens and permanent residents) aged 60 years or more. The panel study was initiated in 2009, enrolling and interviewing a nationally representative sample of 4990 community-dwelling elderly Singaporeans (Wave 1). The same set of elderly Singaporeans was then interviewed for a 2nd time in 2011 (Wave 2) and will be interviewed for the 3rd time in 2015 (Wave 3).

Also known as

Panel on Health and Ageing of Singaporean Elderly (PHASE), 2011

Specific objectives

  1. To capture the transitions of health and ageing of elderly Singaporeans.
  2. To understand the role of life circumstances, health behaviours, psychological and social support environment in determining longevity, frailty and disability among elderly Singaporeans.
  3. To assess health care use and direct medical costs among elderly Singaporeans and determine whether these differ by gender, ethnicity and socio-economic status.


All the 4,990 participants of Wave 1 were re-contacted. A total of 3,247 older adults or their next of kin (for those deceased) responded (response rate: 65%). In addition to the physical, social and mental health data that was collected in Wave 1, information on intergenerational transfers, use of acute and long-term care services, direct medical costs, health insurance and use of dementia-care services and medications was also collected. Anthropometric and performance measurements collected were similar to those in Wave 1, with the addition of the chair stand test. Next-of-kin of elderly who had died since Wave 1 were also interviewed to elicit information regarding the circumstances surrounding their death.


  • Singapore National Medical Research Council Singapore Translational Research (STaR) Investigator Award (NMRC/STaR/0005/2009)
  • Duke-NUS Graduate Medical School