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Investigating the influence of working status changes on physical activity and noncommunicable diseases in Korean middleaged and older adults: insights from a longitudinal panel study
Abstract
Background Non-communicable diseases (NCDs) are a major global health challenge and occupational status
is a critical determinant influencing NCD development, yet many cross-sectional studies have only linked current
occupational status with specific diseases, overlooking broader temporal factors. The primary aim of the present study
was to comprehensively elucidate the intricate interplay between alterations in working status, NCDs, and physical
activity (PA) among Korean middle-aged and older adults, employing a longitudinal panel study design.
Methods This study utilized longitudinal data from the Korean Longitudinal Study of Aging, covering the period from
2006 to 2020, with a median follow-up duration of 10 years. (n = 5101 participants aged 45 years and older). Changes
in working status were categorized, focusing on (1) yes–yes (e.g., indicative of sustained employment), (2) yes–no
(e.g., denoting a transition from employment to non-employment), (3) no–yes (e.g., representing a shift from nonemployment
to
employment), and (4)
no–no
(reflecting a continual
non-employment status).
PA was defined as the
total
minutes of
moderate-to-vigorous
PA per
week and
categorized
into
two
groups:
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