The ELSA data are linked

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asimj1
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Joined: Tue Jan 07, 2025 4:37 am

The ELSA data are linked

Post by asimj1 »

Data – a mixture of prospective, retrospective and linked data from ELSA
For the needs of my research I used data from the English Longitudinal Study of Ageing (ELSA).

ELSA has run since 2002 and over the years has collected a wealth of prospective information on health, behaviours and social circumstances of a national sample of people born before 01 March 1952. with national databases including the ONS mortality registry and constitute an excellent source of information to study (among other things) incidence of rcs data malaysia chronic disease, ageing outcomes and mortality. What ELSA did not have at baseline is information about what had happened to its participants when they were younger. This gap was covered by the one-off Life History survey, which took place in 2007 and collected retrospective information about the life circumstances and experiences of the ELSA participants before joining ELSA – mostly about “important events in their lives and what their childhood was like”.

Retrospectively collected data are subject to measurement error and bias and for that reason are considered inferior to prospectively collected data. Nevertheless, this does not mean that they have no use; their validity and reliability can be tested and established and ultimately they can be a good alternative to prospective data, if prospective data are not available.
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