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对上海市１５２８名ＶＤＴ操作女工月经和妊娠状况调查，发现月经周期、经期和经量异常发生率高于对照组，其中经期延长，经量增多具有统计学意义（Ｐ＜０．０００１）。先兆流产和自然流产（＜３个月）异常发生率高于对照组，并有统计学意义（Ｐ＜０．０５）。
The survey of menstruation and pregnancy status of 1528 VDT female workers in Shanghai showed that the incidence of menstrual cycle, menstrual cycle and abnormal menstruation were higher than those of the control group. The menstrual period was prolonged and the volume increased statistically significant (P <0.0001). The incidence of threatened abortion and spontaneous abortion (<3 months) was significantly higher than that of the control group (P <0.05).