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| Clinical correlation factors analysis of difficult removal of intrauterine device |
| 1. National Research Institute for Family Planning, Beijing, 100081; 2.Beijing Fengtai Hospital |
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Abstract To analyze the correlation factors of difficult removal of intrauterine device (IUD). Methods: Based on the clinical data of 9562 women who had experienced IUD removal From 22 county-level family planning service institutions, 2 provincial-level family planning service institutions, and 5 grade-three general hospitals of different provinces, the relationship between the situation of IUD used or the level of providers who performed the operation of IUD removal and the difficulty of IUD removal was analyzed. Results: The incidence of difficulties for the IUD removal is 5.7%, The Logistic regression analysis showed that the menopause status (OR 1.994，95%CI=1.54~2.59), a history of cesarean section (OR=1.440，95%CI=1.07~1.94), the cervix uteri surgery (OR=1.444，95%CI=1.16~1.80), abnormal uterine size (OR= 1.449，95%CI=1.08~1.95), and low level of medical institution of providers worked (OR=2.342，95%CI=1.59~3.45), < 5 working years of provider (OR= 1.364，95%CI=1.03~1.80) were risk factors for the difficulty of IUD removal. And the providers's education level equal to or over medical master (OR= 0.300，95%CI=0.10~0.95), anterior or median uterus，the younger age of women, and the shorter duration of IUD used were protective factors for the difficulty of IUD removal.
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