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1.
Psychosom Med ; 86(4): 227-233, 2024 May 01.
Article in English | MEDLINE | ID: mdl-38573015

ABSTRACT

OBJECTIVE: Stability in the timing of key daily routine behaviors such as working/doing housework, sleeping, eating, and engaging in social interactions (i.e., behavioral-social rhythms) contributes to health. This study examined whether behavioral-social rhythms were associated with cardiovascular disease (CVD) risk factors in retired night shift workers and retired day workers and explored whether past night shift work exposure moderated this association. METHODS: A total of 154 retired older adults participated in this study. Multiple logistic regression models were used to examine associations between behavioral-social rhythms and CVD risk factors. Independent variables included Social Rhythm Metric (SRM)-5 score and actigraphy rest-activity rhythm intradaily variability (IV) and interdaily stability (IS). Dependent variables were metabolic syndrome prevalence and its five individual components. RESULTS: More regular behavioral-social rhythms were associated with lower odds of prevalent metabolic syndrome (SRM: odds ratio [OR] = 0.57, 95% confidence interval [CI] = 0.35-0.88; IV: OR = 4.00, 95% CI = 1.86-8.58; IS: OR = 0.42, 95% CI = 0.24-0.73) and two of its individual components: body mass index (SRM: OR = 0.56, 95% CI = 0.37-0.85; IV: OR = 2.84, 95% CI = 1.59-5.07; IS: OR = 0.42, 95% CI = 0.26-0.68) and high-density lipoprotein cholesterol (SRM: OR = 0.49, 95% CI = 0.30-0.80; IV: OR = 2.49, 95% CI = 1.25-4.96; IS: OR = 0.35, 95% CI = 0.19-0.66). Past shift work history did not moderate the association between behavioral-social rhythms and metabolic syndrome. CONCLUSIONS: Behavioral-social rhythms were related to CVD risk factors in retired adults regardless of prior night shift work exposure. Older retired workers may benefit from education and interventions aiming to increase behavioral-social rhythm regularity.


Subject(s)
Cardiovascular Diseases , Metabolic Syndrome , Retirement , Shift Work Schedule , Humans , Male , Female , Aged , Retirement/statistics & numerical data , Middle Aged , Metabolic Syndrome/epidemiology , Metabolic Syndrome/etiology , Cardiovascular Diseases/epidemiology , Cardiovascular Diseases/etiology , Shift Work Schedule/adverse effects , Heart Disease Risk Factors , Actigraphy , Circadian Rhythm/physiology , Work Schedule Tolerance/physiology , Risk Factors , Social Behavior , Social Interaction
2.
Behav Sleep Med ; 20(3): 337-342, 2022.
Article in English | MEDLINE | ID: mdl-34989298

ABSTRACT

BACKGROUND: Growing evidence has documented the adverse impact of the global COVID-19 pandemic on sleep quality among older adults. Given the negative consequences of poor sleep, it is critical to identify factors that provide older adults with resilience against worsening sleep quality. Social integration may represent one such resilience factor. PURPOSE: This study evaluated the association of social integration and sleep quality during the COVID-19 pandemic. METHODS: 113 retired older adults completed assessments of their social integration after the onset of the COVID-19 pandemic, and of their sleep quality before and after the onset of the COVID-19 pandemic. RESULTS: Higher levels of social integration were associated with better sleep quality during the COVID-19 pandemic, even when statistically controlling for pre-pandemic sleep quality. Sex-stratified analyses showed that this association was driven by women in our sample. CONCLUSIONS: Social integration may confer resilience against poor sleep quality, especially in older adult women. Additional research is warranted to assess candidate mechanisms and moderators of the link between social integration and sleep quality.


Subject(s)
COVID-19 , Sleep Initiation and Maintenance Disorders , Aged , Female , Humans , Pandemics , Prospective Studies , Sleep Initiation and Maintenance Disorders/epidemiology , Sleep Quality , Social Integration
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