Night work and postpartum depression: a national register-based cohort study

Research output: Contribution to journalJournal articlepeer-review

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Night work and postpartum depression : a national register-based cohort study. / Hammer, Paula; Hageman, Ida; Garde, Anne; Begtrup, Luise; Flachs, Esben; Hansen, Johnni; Hansen, Åse Marie; Hougaard, Karin; Kolstad, Henrik; Larsen, Ann; Pinborg, Anja; Specht, Ina; Bonde, Jens Peter.

In: Scandinavian Journal of Work, Environment & Health, Vol. 45, No. 6, 2019, p. 577-587.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Hammer, P, Hageman, I, Garde, A, Begtrup, L, Flachs, E, Hansen, J, Hansen, ÅM, Hougaard, K, Kolstad, H, Larsen, A, Pinborg, A, Specht, I & Bonde, JP 2019, 'Night work and postpartum depression: a national register-based cohort study', Scandinavian Journal of Work, Environment & Health, vol. 45, no. 6, pp. 577-587. https://doi.org/10.5271/sjweh.3831

APA

Hammer, P., Hageman, I., Garde, A., Begtrup, L., Flachs, E., Hansen, J., Hansen, Å. M., Hougaard, K., Kolstad, H., Larsen, A., Pinborg, A., Specht, I., & Bonde, J. P. (2019). Night work and postpartum depression: a national register-based cohort study. Scandinavian Journal of Work, Environment & Health, 45(6), 577-587. https://doi.org/10.5271/sjweh.3831

Vancouver

Hammer P, Hageman I, Garde A, Begtrup L, Flachs E, Hansen J et al. Night work and postpartum depression: a national register-based cohort study. Scandinavian Journal of Work, Environment & Health. 2019;45(6):577-587. https://doi.org/10.5271/sjweh.3831

Author

Hammer, Paula ; Hageman, Ida ; Garde, Anne ; Begtrup, Luise ; Flachs, Esben ; Hansen, Johnni ; Hansen, Åse Marie ; Hougaard, Karin ; Kolstad, Henrik ; Larsen, Ann ; Pinborg, Anja ; Specht, Ina ; Bonde, Jens Peter. / Night work and postpartum depression : a national register-based cohort study. In: Scandinavian Journal of Work, Environment & Health. 2019 ; Vol. 45, No. 6. pp. 577-587.

Bibtex

@article{ccd425e6232742108e9aef1f44279f5f,
title = "Night work and postpartum depression: a national register-based cohort study",
abstract = "Objective We aimed to investigate the association of night work during pregnancy with the risk of severe postpartum depression (PPD). Methods We performed a nationwide register-based cohort study of workers in all Danish public hospitals. Daily information on working hours was retrieved from the Danish Working Hour Database from January 2007 to December 2015. Pregnancies, covariates and outcome were identified from national registries for births and hospital contacts. We performed logistic regression of the risk of severe PPD in relation to the number and duration of night shifts, spells of consecutive night shifts, and short shift intervals during the first 32 pregnancy weeks. Analyses were adjusted for age, body mass index, socioeconomic status, parity, sickness absence three months prior to pregnancy, and prior diagnosis of severe depression. Results The study cohort comprised 25 009 singleton pregnancies from 19 382 workers. The majority were nurses or physicians. Overall, we did not observe an increased risk of PPD for any of the dimensions of night work analyzed. We found, however, an increased risk of PPD (adjusted odds ratio 2.08, 95% confidence interval 1.09-4.00) among women who stopped working night shifts after the first pregnancy trimester (N=3094). Conclusion Overall, our results do not support night work during pregnancy as a risk factor for severe PPD among hospital employees. However, we observed a 2-fold increased risk of PPD among women who stopped working night shifts after the first pregnancy trimester. This may reflect the influence of the healthy worker survivor effect and warrants further attention.",
author = "Paula Hammer and Ida Hageman and Anne Garde and Luise Begtrup and Esben Flachs and Johnni Hansen and Hansen, {{\AA}se Marie} and Karin Hougaard and Henrik Kolstad and Ann Larsen and Anja Pinborg and Ina Specht and Bonde, {Jens Peter}",
year = "2019",
doi = "10.5271/sjweh.3831",
language = "English",
volume = "45",
pages = "577--587",
journal = "Scandinavian Journal of Work, Environment & Health",
issn = "0355-3140",
publisher = "Tyoterveyslaitos",
number = "6",

}

RIS

TY - JOUR

T1 - Night work and postpartum depression

T2 - a national register-based cohort study

AU - Hammer, Paula

AU - Hageman, Ida

AU - Garde, Anne

AU - Begtrup, Luise

AU - Flachs, Esben

AU - Hansen, Johnni

AU - Hansen, Åse Marie

AU - Hougaard, Karin

AU - Kolstad, Henrik

AU - Larsen, Ann

AU - Pinborg, Anja

AU - Specht, Ina

AU - Bonde, Jens Peter

PY - 2019

Y1 - 2019

N2 - Objective We aimed to investigate the association of night work during pregnancy with the risk of severe postpartum depression (PPD). Methods We performed a nationwide register-based cohort study of workers in all Danish public hospitals. Daily information on working hours was retrieved from the Danish Working Hour Database from January 2007 to December 2015. Pregnancies, covariates and outcome were identified from national registries for births and hospital contacts. We performed logistic regression of the risk of severe PPD in relation to the number and duration of night shifts, spells of consecutive night shifts, and short shift intervals during the first 32 pregnancy weeks. Analyses were adjusted for age, body mass index, socioeconomic status, parity, sickness absence three months prior to pregnancy, and prior diagnosis of severe depression. Results The study cohort comprised 25 009 singleton pregnancies from 19 382 workers. The majority were nurses or physicians. Overall, we did not observe an increased risk of PPD for any of the dimensions of night work analyzed. We found, however, an increased risk of PPD (adjusted odds ratio 2.08, 95% confidence interval 1.09-4.00) among women who stopped working night shifts after the first pregnancy trimester (N=3094). Conclusion Overall, our results do not support night work during pregnancy as a risk factor for severe PPD among hospital employees. However, we observed a 2-fold increased risk of PPD among women who stopped working night shifts after the first pregnancy trimester. This may reflect the influence of the healthy worker survivor effect and warrants further attention.

AB - Objective We aimed to investigate the association of night work during pregnancy with the risk of severe postpartum depression (PPD). Methods We performed a nationwide register-based cohort study of workers in all Danish public hospitals. Daily information on working hours was retrieved from the Danish Working Hour Database from January 2007 to December 2015. Pregnancies, covariates and outcome were identified from national registries for births and hospital contacts. We performed logistic regression of the risk of severe PPD in relation to the number and duration of night shifts, spells of consecutive night shifts, and short shift intervals during the first 32 pregnancy weeks. Analyses were adjusted for age, body mass index, socioeconomic status, parity, sickness absence three months prior to pregnancy, and prior diagnosis of severe depression. Results The study cohort comprised 25 009 singleton pregnancies from 19 382 workers. The majority were nurses or physicians. Overall, we did not observe an increased risk of PPD for any of the dimensions of night work analyzed. We found, however, an increased risk of PPD (adjusted odds ratio 2.08, 95% confidence interval 1.09-4.00) among women who stopped working night shifts after the first pregnancy trimester (N=3094). Conclusion Overall, our results do not support night work during pregnancy as a risk factor for severe PPD among hospital employees. However, we observed a 2-fold increased risk of PPD among women who stopped working night shifts after the first pregnancy trimester. This may reflect the influence of the healthy worker survivor effect and warrants further attention.

U2 - 10.5271/sjweh.3831

DO - 10.5271/sjweh.3831

M3 - Journal article

C2 - 31125110

AN - SCOPUS:85074745213

VL - 45

SP - 577

EP - 587

JO - Scandinavian Journal of Work, Environment & Health

JF - Scandinavian Journal of Work, Environment & Health

SN - 0355-3140

IS - 6

ER -

ID: 230399168