Diurnal urinary 6-sulfatoxymelatonin levels among healthy Danish nurses during work and leisure time
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Diurnal urinary 6-sulfatoxymelatonin levels among healthy Danish nurses during work and leisure time. / Hansen, Åse Marie; Helene Garde, Anne; Hansen, Johnni.
In: Chronobiology International, Vol. 23, No. 6, 2006, p. 1203-15.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Diurnal urinary 6-sulfatoxymelatonin levels among healthy Danish nurses during work and leisure time
AU - Hansen, Åse Marie
AU - Helene Garde, Anne
AU - Hansen, Johnni
PY - 2006
Y1 - 2006
N2 - The present study aims to examine the influence of evening and night shift work, compared to day shift work, on melatonin secretion in nurses in a field setting. Effects were examined during a workday and during a day off. Both fixed schedules and mixed or rotating schedules were studied. In total, 170 nurses were studied: 89 nurses worked fixed schedules, 27 nurses worked the day shift, 12 nurses worked the evening shift, 50 nurses worked the night shift, and 82 nurses worked mixed schedules, with data collected during a day (n = 17), evening (n = 14), or night shift (n = 50). All spot urine samples were collected during 24 h from the participants on a work day and on a day off and were analyzed for 6-sulphatoxymelatonin. On the day of urine sampling, participants filled in the Karolinska Sleep Diary. Additional information was collected through a telephone interview. Data were analyzed using a mixed procedure with autoregressive covariance structure. The present study showed that shift work affected the concentrations of 6-sulphatoxymelatonin in the short term by lower excretion in urine from nurses working the night compared to day shift on a workday and on a day off as well. No significant differences were observed between a workday and a day off when doing day and evening shifts, irrespective of mixed and fixed schedules. Sleep length was reduced workdays (from 6.1-6.8 h) among all nurses, compared to days off (from 7.8-8.7 h).
AB - The present study aims to examine the influence of evening and night shift work, compared to day shift work, on melatonin secretion in nurses in a field setting. Effects were examined during a workday and during a day off. Both fixed schedules and mixed or rotating schedules were studied. In total, 170 nurses were studied: 89 nurses worked fixed schedules, 27 nurses worked the day shift, 12 nurses worked the evening shift, 50 nurses worked the night shift, and 82 nurses worked mixed schedules, with data collected during a day (n = 17), evening (n = 14), or night shift (n = 50). All spot urine samples were collected during 24 h from the participants on a work day and on a day off and were analyzed for 6-sulphatoxymelatonin. On the day of urine sampling, participants filled in the Karolinska Sleep Diary. Additional information was collected through a telephone interview. Data were analyzed using a mixed procedure with autoregressive covariance structure. The present study showed that shift work affected the concentrations of 6-sulphatoxymelatonin in the short term by lower excretion in urine from nurses working the night compared to day shift on a workday and on a day off as well. No significant differences were observed between a workday and a day off when doing day and evening shifts, irrespective of mixed and fixed schedules. Sleep length was reduced workdays (from 6.1-6.8 h) among all nurses, compared to days off (from 7.8-8.7 h).
KW - Adult
KW - Circadian Rhythm
KW - Denmark
KW - Employment
KW - Female
KW - Humans
KW - Interviews as Topic
KW - Melatonin
KW - Middle Aged
KW - Nurses
KW - Quality Control
KW - Relaxation
KW - Sleep
KW - Sleep Deprivation
KW - Telephone
KW - Time Factors
KW - Wakefulness
KW - Work Schedule Tolerance
U2 - 10.1080/07420520601100955
DO - 10.1080/07420520601100955
M3 - Journal article
C2 - 17190706
VL - 23
SP - 1203
EP - 1215
JO - Chronobiology International
JF - Chronobiology International
SN - 0742-0528
IS - 6
ER -
ID: 37474338