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The association between habitual sleep duration and mortality according to sex and age : the Japan Public Health Center-based Prospective Study

Svensson, Thomas LU ; Inoue, Manami ; Saito, Eiko ; Sawada, Norie ; Iso, Hiroyasu ; Mizoue, Tetsuya ; Goto, Atsushi ; Yamaji, Taiki ; Shimazu, Taichi and Iwasaki, Motoki , et al. (2021) In Journal of Epidemiology 31(2). p.109-118
Abstract

Background
Short and long sleep durations are associated with mortality outcomes. The association between sleep duration and mortality outcomes may differ according to sex and age.

Methods
Participants of the Japan Public Health Center-based prospective study (JPHC Study) were aged 40-69 years and had completed a detailed questionnaire on lifestyle factors. Sex- and age-stratified analyses on the association between habitual sleep duration and mortality from all-causes, cardiovascular diseases (CVD), cancer and other causes included 46,152 men and 53,708 women without a history of CVD or cancer. Cox proportional hazards regression models, adjusted for potential confounders, were used to determine hazard ratios and 95%... (More)

Background
Short and long sleep durations are associated with mortality outcomes. The association between sleep duration and mortality outcomes may differ according to sex and age.

Methods
Participants of the Japan Public Health Center-based prospective study (JPHC Study) were aged 40-69 years and had completed a detailed questionnaire on lifestyle factors. Sex- and age-stratified analyses on the association between habitual sleep duration and mortality from all-causes, cardiovascular diseases (CVD), cancer and other causes included 46,152 men and 53,708 women without a history of CVD or cancer. Cox proportional hazards regression models, adjusted for potential confounders, were used to determine hazard ratios and 95% confidence intervals.

Results
Mean follow-up time was 19.9 years for men and 21.0 years for women. In the multivariable sex-stratified models, and compared with 7 hours, some categories of sleep durations ≥ 8 hours were positively associated with mortality from all-causes, CVD, and other causes in men and women. The sex- and age-stratified analyses did not reveal any major differences in the association between sleep duration and mortality outcomes in groups younger and older than 50 years of age. The only exception was the significant interaction between sleep duration and age in women for mortality from other causes.

Conclusions
Sleep durations ≥8 hours are associated with mortality outcomes in men and women. Age may be an effect modifier for the association between sleep duration and mortality from other causes in women.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Epidemiology
volume
31
issue
2
pages
109 - 118
publisher
Elsevier
external identifiers
  • pmid:32009104
  • scopus:85099442315
ISSN
0917-5040
DOI
10.2188/jea.JE20190210
language
English
LU publication?
yes
id
ec56bace-8443-4d3c-8d1a-2081c31cc2eb
date added to LUP
2020-06-25 15:49:51
date last changed
2024-06-26 17:36:53
@article{ec56bace-8443-4d3c-8d1a-2081c31cc2eb,
  abstract     = {{<p>Background<br/>Short and long sleep durations are associated with mortality outcomes. The association between sleep duration and mortality outcomes may differ according to sex and age.</p><p>Methods<br/>Participants of the Japan Public Health Center-based prospective study (JPHC Study) were aged 40-69 years and had completed a detailed questionnaire on lifestyle factors. Sex- and age-stratified analyses on the association between habitual sleep duration and mortality from all-causes, cardiovascular diseases (CVD), cancer and other causes included 46,152 men and 53,708 women without a history of CVD or cancer. Cox proportional hazards regression models, adjusted for potential confounders, were used to determine hazard ratios and 95% confidence intervals.</p><p>Results<br/>Mean follow-up time was 19.9 years for men and 21.0 years for women. In the multivariable sex-stratified models, and compared with 7 hours, some categories of sleep durations ≥ 8 hours were positively associated with mortality from all-causes, CVD, and other causes in men and women. The sex- and age-stratified analyses did not reveal any major differences in the association between sleep duration and mortality outcomes in groups younger and older than 50 years of age. The only exception was the significant interaction between sleep duration and age in women for mortality from other causes.</p><p>Conclusions<br/>Sleep durations ≥8 hours are associated with mortality outcomes in men and women. Age may be an effect modifier for the association between sleep duration and mortality from other causes in women.</p>}},
  author       = {{Svensson, Thomas and Inoue, Manami and Saito, Eiko and Sawada, Norie and Iso, Hiroyasu and Mizoue, Tetsuya and Goto, Atsushi and Yamaji, Taiki and Shimazu, Taichi and Iwasaki, Motoki and Tsugane, Shoichiro}},
  issn         = {{0917-5040}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{109--118}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Epidemiology}},
  title        = {{The association between habitual sleep duration and mortality according to sex and age : the Japan Public Health Center-based Prospective Study}},
  url          = {{http://dx.doi.org/10.2188/jea.JE20190210}},
  doi          = {{10.2188/jea.JE20190210}},
  volume       = {{31}},
  year         = {{2021}},
}