Study on the Influence of Rotating Shift Work on Menstrual Cycle Length

• Main Authors: Yao-Ya Kao, 高瑤雅
• Other Authors: Chihwei Lu
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/55840244214876974693

碩士 === 高雄醫學大學 === 職業安全衛生研究所碩士班 === 93 === Background： The shift work is a common working type of high-tech industries and 9.3% female workers are belong to shift-work labors in Taiwan. Regular menstruation cycle and pattern reflect the reproductive and endocrine functions of a woman. Circadian pattern may be changed by rotating shift-work which may cause irregular menstruation, prolong menstruation and endocrine function disorder. Objective：To investigate the prevalence of irregular menstruation of 4-shift-2-rotate shift workers. Design ： longitudinal study. Setting ：Staffs of a photoelectron company in the Tainan Science Park in Taiwan . Participation: 329 employees (49 day workers, 280 4-shift-2-rotate shift workers) who were 16-45y/o women. Results：The shift women had the higher oligomenorrhea than day time workers. After adjustment for confounders, compared with day worker odds, 1.71(1.03-2.88).We concluded rotate work is associated with irregular menstrual cycle. Conclusion：The 4-shift-2-rotate shift workers have highly irregular menstrual cycles compared with day time workers. Moreover, the increasing is statistically significantly.