BACKGROUND:Informed consent in family planning includes knowledge of mechanism of action. Some methods of family planning occasionally work after fertilization. Knowing about postfertilization effects may be important to some women before choosing a certain family planning method. The objective of this survey is to explore women's attitudes towards postfertilization effects of family planning methods, and beliefs and characteristics possibly associated with those attitudes. METHODS:Cross-sectional survey in a sample of 755 potentially fertile women, aged 18-49, from Primary Care Health Centres in Pamplona, Spain. Participants were given a 30-item, self-administered, anonymous questionnaire about family planning methods and medical and surgical abortion. Logistic regression was used to identify variables associated with women's attitudes towards postfertilization effects. RESULTS:The response rate was 80%. The majority of women were married, held an academic degree and had no children. Forty percent of women would not consider using a method that may work after fertilization but before implantation and 57% would not consider using one that may work after implantation. While 35.3% of the sample would stop using a method if they learned that it sometimes works after fertilization, this percentage increased to 56.3% when referring to a method that sometimes works after implantation. Women who believe that human life begins at fertilization and those who consider it is important to distinguish between natural and induced embryo loss were less likely to consider the use of a method with postfertilization effects. CONCLUSION:Information about potential postfertilization effects of family planning methods may influence women's acceptance and choice of a particular family planning method. Additional studies in other populations are necessary to evaluate whether these beliefs are important to those populations.

译文

背景:计划生育中的知情同意包括对作用机制的了解。受精后,某些计划生育方法有时会起作用。在选择某种计划生育方法之前,了解受精后的影响对某些女性可能很重要。这项调查的目的是探讨妇女对计划生育方法受精后效果的态度,以及可能与这些态度相关的信念和特征。
方法:对来自西班牙潘普洛纳的初级保健健康中心的755名年龄在18-49岁之间的潜在可育妇女进行了横断面调查。与会人员获得了关于计划生育方法以及药物和手术流产的30项自我管理的匿名问卷。 Logistic回归用于确定与女性对受精后效果的态度有关的变量。
结果:有效率80%。大多数妇女已婚,拥有学历,并且没有孩子。 40%的女性不会考虑使用在受精后但在植入前可能起作用的方法,而57%的女性不会考虑使用在植入后可能会起作用的方法。如果35.3%的样本如果得知受精后有时仍会使用某种方法,则停止使用该方法,但当提及植入后有时仍可使用的方法时,该百分比增加至56.3%。认为人类生命始于受精的妇女,以及认为重要的是区分自然损失和诱发的胚胎损失的妇女,不太可能考虑使用具有受精后作用的方法。
结论:有关计划生育方法潜在的受精后效果的信息可能会影响女性对某种计划生育方法的接受和选择。有必要在其他人群中进行其他研究,以评估这些信念是否对这些人群重要。

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