Long working hours and change in body weight : analysis of individual-participant data from 19 cohort studies

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Virtanen , M , Jokela , M , Lallukka , T , Hanson , L M , Pentti , J , Nyberg , S T , Alfredsson , L , Batty , G D , Casini , A , Clays , E , DeBacquer , D , Ervasti , J , Fransson , E , Halonen , J I , Head , J , Kittel , F , Knutsson , A , Leineweber , C , Nordin , M , Oksanen , T , Pietiläinen , O , Rahkonen , O , Salo , P , Singh-Manoux , A , Stenholm , S , Suominen , S B , Theorell , T , Vahtera , J , Westerholm , P , Westerlund , H & Kivimäki , M 2020 , ' Long working hours and change in body weight : analysis of individual-participant data from 19 cohort studies ' , International Journal of Obesity , vol. 44 , no. 6 , pp. 1368-1375 . https://doi.org/10.1038/s41366-019-0480-3

Title: Long working hours and change in body weight : analysis of individual-participant data from 19 cohort studies
Author: Virtanen, Marianna; Jokela, Markus; Lallukka, Tea; Hanson, Linda Magnusson; Pentti, Jaana; Nyberg, Solja T.; Alfredsson, Lars; Batty, G. David; Casini, Annalisa; Clays, Els; DeBacquer, Dirk; Ervasti, Jenni; Fransson, Eleonor; Halonen, Jaana I.; Head, Jenny; Kittel, France; Knutsson, Anders; Leineweber, Constanze; Nordin, Maria; Oksanen, Tuula; Pietiläinen, Olli; Rahkonen, Ossi; Salo, Paula; Singh-Manoux, Archana; Stenholm, Sari; Suominen, Sakari B.; Theorell, Töres; Vahtera, Jussi; Westerholm, Peter; Westerlund, Hugo; Kivimäki, Mika
Contributor organization: Department of Psychology and Logopedics
University Management
University of Helsinki
Department of Public Health
Clinicum
Center for Population, Health and Society
HUS Helsinki and Uusimaa Hospital District
Date: 2020-06
Language: eng
Number of pages: 8
Belongs to series: International Journal of Obesity
ISSN: 0307-0565
DOI: https://doi.org/10.1038/s41366-019-0480-3
URI: http://hdl.handle.net/10138/317708
Abstract: Objective To examine the relation between long working hours and change in body mass index (BMI). Methods We performed random effects meta-analyses using individual-participant data from 19 cohort studies from Europe, US and Australia (n = 122,078), with a mean of 4.4-year follow-up. Working hours were measured at baseline and categorised as part time (= 55 h/week (long working hours). There were four outcomes at follow-up: (1) overweight/obesity (BMI >= 25 kg/m(2)) or (2) overweight (BMI 25-29.9 kg/m(2)) among participants without overweight/obesity at baseline; (3) obesity (BMI >= 30 kg/m(2)) among participants with overweight at baseline, and (4) weight loss among participants with obesity at baseline. Results Of the 61,143 participants without overweight/obesity at baseline, 20.2% had overweight/obesity at follow-up. Compared with standard weekly working hours, the age-, sex- and socioeconomic status-adjusted relative risk (RR) of overweight/obesity was 0.95 (95% CI 0.90-1.00) for part-time work, 1.07 (1.02-1.12) for 41-48 weekly working hours, 1.09 (1.03-1.16) for 49-54 h and 1.17 (1.08-1.27) for long working hours (Pfor trend
Subject: CORONARY-HEART-DISEASE
JOB STRAIN
UNPUBLISHED DATA
RISK-FACTORS
MASS INDEX
FOLLOW-UP
METAANALYSIS
OBESITY
PROFILE
GAIN
3121 General medicine, internal medicine and other clinical medicine
3142 Public health care science, environmental and occupational health
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


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