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Social jetlag is associated with an increased likelihood of having depressive symptoms among the Japanese working population: the Furukawa Nutrition and Health Study.

ABSTRACT: STUDY OBJECTIVES:Social jetlag, a mismatch between biological and social timing, has been reported to be associated with depressive symptoms among general population. However, evidence on this association is lacking among non-shift workers, who are under pressure to adapt themselves to a work schedule. We investigated the cross-sectional association of social jetlag with depressive symptoms among Japanese non-shift workers. METHODS:This study included 1,404 employees, aged 18-78 years, who completed a study questionnaire at a periodic health checkup. Social jetlag was calculated as the absolute value of the difference in the midpoint of sleep times between weekdays and weekends. Depressive symptoms were assessed using the Center for Epidemiologic Studies Depression Scale. Multivariable logistic regression was used to estimate the odds ratio (OR) with adjustments for potential confounders including diet and chronotype. RESULTS:Of the study participants, 63.5%, 28.4%, and 8.1% had less than 1 hour, 1 to less than 2 hours, and at least 2 hours of social jetlag, respectively. Greater social jetlag was significantly associated with an increased likelihood of having depressive symptoms. The multivariable-adjusted OR (95% confidence interval) were 1.30 (0.95 to 1.78) and 2.14 (1.26-3.62) for 1 to less than 2 hour and at least 2 hours compared to less than 1 hour of social jetlag. The association between social jetlag and depressive symptoms appeared to be linear, according to restricted cubic spline regression. CONCLUSION:Results suggest that greater social jetlag is associated with an increased likelihood of having depressive symptoms among non-shift workers.

SUBMITTER: Islam Z

PROVIDER: S-EPMC6985924 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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Social jetlag is associated with an increased likelihood of having depressive symptoms among the Japanese working population: the Furukawa Nutrition and Health Study.

Islam Zobida Z Hu Huanhuan H Akter Shamima S Kuwahara Keisuke K Kochi Takeshi T Eguchi Masafumi M Kurotani Kayo K Nanri Akiko A Kabe Isamu I Mizoue Tetsuya T

Sleep 20200101 1

<h4>Study objectives</h4>Social jetlag, a mismatch between biological and social timing, has been reported to be associated with depressive symptoms among general population. However, evidence on this association is lacking among non-shift workers, who are under pressure to adapt themselves to a work schedule. We investigated the cross-sectional association of social jetlag with depressive symptoms among Japanese non-shift workers.<h4>Methods</h4>This study included 1,404 employees, aged 18-78 y ...[more]

PMID: 31555821

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Project description:OBJECTIVES:To investigate the relationships between depressive symptoms and opioid potency among adults aged 50 years and older reporting use of one or more prescription opioids in the past 30 days. MATERIALS/DESIGN:Adjusted multiple linear regression models were conducted with 2005-2013 files from a secondary cross-sectional dataset, the National Health and Nutrition Examination Survey (NHANES). Respondents were community-dwelling, noninstitutionalized adults 50 years or older (n = 1036). Predictor variables included a positive screen for minor depression symptoms (Patient Health Questionnaire [PHQ-9] score greater than or equal to 5 and less than or equal to 9), moderate depression symptoms (PHQ-9 greater than or equal to 10 and less than or equal to 14), and severe depression symptoms (PHQ-9 greater than or equal to 15). Criterion variables included weaker-than-morphine analgesics (eg, codeine and tramadol) and morphine-equivalent opioids (eg, morphine and hydrocodone), which served as the reference category, as well as stronger-than-morphine opioid analgesics (eg, fentanyl and oxycodone). RESULTS:Prevalence rates for symptoms of minor depression, moderate depression, and severe depression were n = 236 (22.8%), n = 135 (13.0%), and n = 122 (11.8%), respectively. Severe depression was significantly associated with high-potency opioid use (odds ratio [OR]: 2.27; confidence interval [CI], 1.16-4.46). In post hoc tests, severe depression remained significantly associated with high-potency opioid use only among respondents without arthritis (OR: 5.80; CI, 1.59-21.13). CONCLUSIONS:Compared with older adults without depressive symptoms, older adults with severe depressive symptoms are more likely to be taking high-potency opioid medications. Future prescription opioid medication research should prioritize investigations among older adults with pain-related diagnoses, other than arthritis, reporting preexisting or new symptoms of severe depression.

Project description:RationaleFew studies have examined whether changes in participation in civic associations can mitigate depressive symptoms among older disaster survivors.ObjectivesWe examined prospectively the association between changes in participation in civic associations and changes in depressive symptoms among older survivors of the 2011 Great Eastern Japan Earthquake.MethodsWe analyzed questionnaire-based survey data on pre- and post-disaster participation in civic associations and depressive symptoms compiled for 3567 respondents aged 65 years and above. Changes in these symptoms were assessed using a 15-item Geriatric Depression Scale (GDS) as a continuous variable for 2010 and 2013. We investigated four types of civic associations: sports, hobby, voluntary groups, and senior citizens' clubs. Changes in participation were calculated by subtracting the participation frequency measured in 2010 from that measured in 2013. Applying 95% confidence intervals, we used linear regression models with imputation to estimate the age- and sex-adjusted and multivariate-adjusted standardized coefficients.ResultsThe survivors' GDS scores increased by 0.13 points on average between the pre-disaster and post-disaster periods. Average changes in the participation frequencies of respondents in each group were respectively +0.36 days/year, -5.63 days/year, +0.51 days/year, and -1.45 days/year. Increased frequencies of participation in the sports and hobby groups were inversely associated with changes in GDS scores (B = -0.003, Cohen's f2 = 0.10, P = 0.01 and B = -0.002, Cohen's f2 = 0.08, P = 0.04, respectively). The associations did not differ depending on the experience of housing damage caused by the disaster. In addition, we did not observe a significant association between changes in participation frequencies for voluntary groups or senior citizens' clubs and changes in GDS scores after multivariable adjustment.ConclusionsDepressive symptoms of older adults post-disaster may be mitigated through increased frequency of participation in sports and hobby groups; yet, civic participation did not mitigate the adverse impact of disaster experiences on mental health.

Dataset Information

Social jetlag is associated with an increased likelihood of having depressive symptoms among the Japanese working population: the Furukawa Nutrition and Health Study.

Publications

Social jetlag is associated with an increased likelihood of having depressive symptoms among the Japanese working population: the Furukawa Nutrition and Health Study.

Similar Datasets

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