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  1. 1
    340897

    Emergency contraception. Fact sheet.

    World Health Organization [WHO]

    [Geneva, Switzerland], WHO, 2016 Feb. [6] p.

    Emergency contraception can prevent most pregnancies when taken after intercourse. Emergency contraception can be used in the following situations: unprotected intercourse, contraceptive failure, incorrect use of contraceptives, or in cases of sexual assault. There are 3 methods of emergency contraception: emergency contraceptive pills (ECPs), combined oral contraceptive pills or the Yuzpe method, and copper-bearing intrauterine devices (IUDs). A copper-bearing IUD is the most effective form of emergency contraception available when inserted within 5 days of unprotected intercourse. The emergency contraceptive pill regimen recommended by WHO is either: a. 1 dose of levonorgestrel 1.5 mg, or 1 dose of ulipristal 30 mg, taken within 5 days (120 hours) of unprotected intercourse; or b. 2 doses of combined oral contraceptive pills (also known as the Yuzpe regimen).
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  2. 2
    272300

    A randomized comparative study of interval insertion of three intrauterine devices: the copper T 220c, the Nova T and the WHO levonorgestrel 2 ug IUD.

    Gao J; Wu SC; Song GY; Miao L; Cheng JH; Sun HZ

    [Unpublished] 1985 May. 5 p. (Project: 82901)

    The objective is to compare the effectiveness and acceptability of 3 IUDs inserted in 300 health women, aged 24-38. All have had at least 1 full-term delivery. Subjects were randomly allocated to 1 of the 3 IUDS: the Copper T 220C (Tcu 220c), the Nova T, and the World Health Organization levonorgestrel 2 ug IUD. Insertion was done from the 3rd to the 5th day of menstruation between Feb. and Sept. 1984 and followed up at 48 hours, 3, 6, 12, and 24 months after IUD insertion. 12 month data was collected for cumulative rates, based on life table procedures and analyzed with log-rank test. There was no loss to follow up and no insertion failure. All levonorgestrel IUDs have been removed because the levonorgestrel-releasing IUD has a relatively high risk of ectopic pregnancy. The use-related discontinuation rates of Tcu 220c, Nova T, and levonorgestrel IUD during 12 months of use, were 11.1, 2.4, and 12.7, respectively. The difference between Tcu 220c and Nova T were statistically significant (p.<0.01). The continuation rates of Tcu 220c, Nova T, and levonorgestrel during 6 months of use were 94.0, 99.0, and 96.0, respectively. During 12 months of use, they were 88.9, 97.6, and 87.3 respectively. 1 ectopic pregnancy occurred with the levonorgestrel IUD after 7 months of use. No pregnancy occurred in Nova T users. The pregnancy rates of Tcu 220c and levonorgestrel IUD during 12 months of use were 1.0 and 1.3, respectively. Removal rates for bleeding with Tcu 220c and levonorgestrel IUD during 12 months of use were 3.1 and 1.0, respectively. The removal rate for pain with Tcu 220c during 12 months of use was 2.0. The duration of bleeding and spotting with 3 IUDs, 3, 6, 9, and 12 months of use are illustrated. Preliminary results show that the Nova T is superior to Tcu 220c and levonorgestrel IUDs. Expulsion is the main event in both Nova T and Tcu 220c. More attention should be paid to the insertion technique. The duration of bleeding and spotting of levonorgestrel IUD were longer in the last 3 months after insertion, but was shortest at 1 year of use when compared with Tcu 220c and Nova T.
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