Black T R, Goldstuck N D, Spence A
Contraception. 1980 Dec;22(6):653-8. doi: 10.1016/0010-7824(80)90090-6.
A total of 191 patients have undergone post-coital insertion of an intrauterine contraceptive device up to ten days post-coitus. The majority of patients were nulliparous and underwent insertion of a standard Gravigard [Copper 7] device. The subsequent expulsion and medical removal rates were normal for this group of patients but the non-medical removal rates were higher. There was one possible post-coital contraceptive failure (0.6%) and one pregnancy at six months due to the device exhibiting a failure to conventional contraceptive action.
共有191名患者在性交后10天内进行了宫内节育器的性交后插入。大多数患者未生育,接受了标准的Gravigard[铜7]装置的插入。该组患者随后的排出率和因医疗原因取出的比率正常,但非医疗原因取出的比率较高。有1例可能的性交后避孕失败(0.6%),还有1例在6个月时怀孕,原因是该装置未能发挥常规避孕作用。