Working conditions and weight gain: a 28-year follow-up study of industrial employees |
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Authors: | Tea Lallukka Sirpa Sarlio-Lähteenkorva Leena Kaila-Kangas Janne Pitkäniemi Ritva Luukkonen Päivi Leino-Arjas |
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Institution: | (1) Department of Public Health, University of Helsinki, P.O. Box 41, 00014 University of Helsinki, Finland;(2) Centre of Expertise for Health and Work Ability, Finnish Institute of Occupational Health, Topeliuksenkatu 41a, 00250 Helsinki, Finland;(3) Centre of Expertise for Good Practices and Competence, Finnish Institute of Occupational Health, Topeliuksenkatu 41a, 00250 Helsinki, Finland |
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Abstract: | Longitudinal studies observing working conditions and weight gain are rare. We aimed to study whether weight gain can be predicted
by working conditions or changes in them in a 28-year follow-up. The study population consisted of working-aged industrial
employees (n = 449). Data on height and weight were collected in clinical examinations in 1973, 1983 and 2001, and information on working
conditions by questionnaires. We analysed the impact of changes in physical strain, temporal requirements and indicators of
mental strain at work in 1973 and 1983 on weight changes using analysis of variance, logistic regression analysis and linear
mixed longitudinal growth model. The latter was done to account for individual variation in temporal weight change over the
study period. Weight gain was prominent in the data and about a third of the participants gained at least 15 kg by the final
survey. Changes in physical strain and temporal requirements including working overtime hours among men, and experiencing
increased working pace among women, were associated with greater mean weight gain and major weight gain. Job efforts and increasing
mental strain showed weak associations with weight gain in men. Changes in the physical strain and temporal requirements seem
to predict weight gain but working conditions were in general mostly weakly associated with weight gain in this cohort of
initially young adults. The results highlight the importance of stable working hours and reasonable workload on healthy weight. |
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Keywords: | Longitudinal Mental strain Physical strain Working overtime Working pace |
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