Association of changes in lifestyle with changes in sleep difficulties : An analysis of 38 400 participants over a 16-year follow-up

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Saltychev , M , Juhola , J , Ervasti , J , Kivimäki , M , Pentti , J , Myllyntausta , S & Vahtera , J 2021 , ' Association of changes in lifestyle with changes in sleep difficulties : An analysis of 38 400 participants over a 16-year follow-up ' , BMJ Open , vol. 11 , no. 10 , 050046 . https://doi.org/10.1136/bmjopen-2021-050046

Title: Association of changes in lifestyle with changes in sleep difficulties : An analysis of 38 400 participants over a 16-year follow-up
Author: Saltychev, Mikhail; Juhola, Juhani; Ervasti, Jenni; Kivimäki, Mika; Pentti, Jaana; Myllyntausta, Saana; Vahtera, Jussi
Contributor organization: Department of Public Health
University of Helsinki
Date: 2021-10-18
Language: eng
Number of pages: 5
Belongs to series: BMJ Open
ISSN: 2044-6055
DOI: https://doi.org/10.1136/bmjopen-2021-050046
URI: http://hdl.handle.net/10138/337018
Abstract: Objectives To investigate the association between changes in lifestyle risk factors and changes is sleep difficulties. Design Longitudinal repeated measures cohort study. Setting University and national institute of occupational health. Participants Participants of the Finnish Public Sector study with information on sleep and lifestyle-related risk factors collected in five repeat surveys with 4-year intervals from 2000 to 2017. The participants were those, who had responded at least twice and had a change in sleep difficulties (having sleep difficulties vs not) (142 969 observations from 38 400 respondents (mean age 45.5 (SD 9.2) years, 83% women). Primary and secondary outcome measures Changes in sleep quality over time. Longitudinal fixed effects analysis, a method that accounts for time-invariant confounders by design, was used. Results At first available response, sleep difficulties were experienced by 13 998 (36%) of the respondents. Respectively, the mean age was 44.3 (10.0) years, 7526 (20%) were obese, 13 487 (35%) reported low physical activity, 3338 (9%) extensively drinking and 6547 (17%) were smoking. Except for smoking, the changes in the studied modifiable risks were associated with changes in sleep difficulties. The ORs for having sleep difficulties were 1.41 (95% CI 1.35 to 1.48) for obesity, 1.10 (95% CI 1.06 to 1.13) for low physical activity and 1.43 (95% CI 1.35 to 1.51) for heavy drinking. For smoking, the association was negative with OR 0.81 (95% CI 0.76 to 0.86). Including all four modifiable risks into model changed the estimates only little. Conclusions The results of this longitudinal study suggest that changes in sleep quality are interconnected with changes in lifestyle.
Description: Publisher Copyright: © 2021 Author(s). Published by BMJ.
Subject: 3121 General medicine, internal medicine and other clinical medicine
epidemiology
occupational & industrial medicine
public health
sleep medicine
INSOMNIA
OBESITY
QUALITY
POOR SLEEP
PREDICTORS
STRESS
DURATION
3142 Public health care science, environmental and occupational health
Peer reviewed: Yes
Rights: cc_by_nc
Usage restriction: openAccess
Self-archived version: publishedVersion


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