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Effects of shiftwork on sleep and menstrual function in nurses
Susan Labyak1, Susan Lava, Fred Turek
1School of Nursing, University of Washington, Seattle, Washington 98195-7262, USA. slabyak@u.washington.edu
Health Care for Women International
|November 7, 2002
Summary
Shiftwork disrupts nurses' menstrual cycles and sleep. Menstrual changes may signal intolerance to shift work, highlighting the impact of sleep disturbances on reproductive health.
Area of Science:
- Reproductive Health
- Occupational Health
- Sleep Medicine
Background:
- Shiftwork is linked to menstrual irregularities, reproductive issues, and adverse pregnancy outcomes.
- Limited research exists on shiftwork's specific effects on menstrual function and fertility.
Purpose of the Study:
- To assess menstrual function, fertility, and pregnancy outcomes in nurses engaged in shiftwork.
- To investigate the correlation between sleep patterns and menstrual function among these nurses.
Main Methods:
- A survey was administered to 68 female nurses under 40 years old.
- The survey collected data on sleep quality, menstrual cycle regularity, and pregnancy history.
Main Results:
- Over half (53%) of nurses reported menstrual changes associated with shiftwork.
- Nurses experiencing menstrual changes reported more physiological symptoms.
- These nurses also reported reduced sleep duration (approx. 1 hour less) and increased sleep onset latency when working night shifts.
Conclusions:
- Sleep disturbances associated with shiftwork may precipitate menstrual irregularities.
- Changes in menstrual function could serve as an indicator of shiftwork intolerance in women.
- Further research is warranted to explore interventions for mitigating adverse effects.