The LASI Wave 1 is a nationally representative survey of 73,396 older adults age 45 and above across all states and union territories of India. The data collection activities for the wave 1 was carried between April 2017 to December 2018 (Sikkim state data collection was carried out in 2020-21).
The first national wave of the LASI provides in-depth data on ageing, economic aspects, health status, social relationships, social support, family, and life satisfaction to help determine the specific needs, circumstances, and views of ageing adults in the light of changing social and familial circumstances. All measures, while specific and sensitive to the Indian context, have been harmonized to the greatest possible extent with its international sister surveys on ageing and retirement. This is done in order to provide a valuable source for comparison and to work towards providing a comprehensive picture of population ageing in India and comparative studies of global population ageing.
In 2010, LASI pilot survey was conducted successfully with targeted sample of 1,600 individuals aged 45 and older along with their spouses, and this helped in design and rollout of a full-scale, nationally representative LASI survey.
The LASI pilot survey was conducted in four states: Karnataka, Kerala, Punjab, and Rajasthan. To capture regional variation, we have included two northern states (Punjab and Rajasthan) and two southern states (Karnataka and Kerala). Karnataka and Rajasthan were included in the Study on Global Ageing and Adult Health (SAGE), which enable us to compare our findings with the SAGE data.
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