Stanford J B, Lemaire J C, Thurman P B
Department of Family and Preventive Medicine, University of Utah, Salt Lake City 84132, USA.
J Fam Pract. 1998 Jan;46(1):65-71.
In the United States, approximately 4% of women of reproductive age use natural family planning (NFP) to avoid pregnancy. It is unclear whether this low number is related to a lack of available information, women's lack of interest, or other factors. Our study examined women's interest in using NFP either to become pregnant or to avoid it.
A questionnaire was mailed to 1500 women, aged 18 to 50, who were randomly selected from driver's license renewal records in Missouri for the year beginning July 1991 and ending June 1992.
Of the 747 returned questionnaires, 484 were from women who were still potentially fertile. Of these women, 22.5% indicated that they would be likely or very likely to use NFP in the future to avoid pregnancy, and 37.4% indicated that they would be likely or very likely to use NFP in the future to become pregnant. Only 2.8% were currently using a method of NFP. Past use of any method of NFP (including the outdated calendar rhythm method) to avoid pregnancy was associated with interest in future use of modern methods of NFP to avoid pregnancy. Past use of NFP to become pregnant and the possible desire for future pregnancy were associated with interest in future use of NFP to conceive.
Many women who are not currently using NFP indicated that they are interested in doing so in the future, either to avoid pregnancy or to conceive. Interest in future use of NFP is associated with, but not limited to, those who have previously used NFP.
在美国，约4%的育龄妇女采用自然计划生育法（NFP）来避免怀孕。目前尚不清楚这一低比例是由于信息获取不足、女性缺乏兴趣还是其他因素所致。我们的研究调查了女性对使用自然计划生育法来怀孕或避孕的兴趣。
向1500名年龄在18至50岁之间的女性邮寄了调查问卷，这些女性是从密苏里州1991年7月至1992年6月的驾照更新记录中随机抽取的。
在747份回收的问卷中，484份来自仍具生育能力的女性。在这些女性中，22.5%表示未来很可能或非常可能使用自然计划生育法来避免怀孕，37.4%表示未来很可能或非常可能使用自然计划生育法来怀孕。目前只有2.8%的女性在使用自然计划生育法。过去使用任何自然计划生育法（包括过时的日历节律法）来避免怀孕与未来使用现代自然计划生育法来避免怀孕的兴趣相关。过去使用自然计划生育法来怀孕以及未来可能的怀孕意愿与未来使用自然计划生育法来受孕的兴趣相关。
许多目前未使用自然计划生育法的女性表示，她们未来有兴趣使用该方法，无论是为了避免怀孕还是为了受孕。未来使用自然计划生育法的兴趣与此前使用过该方法的人群相关，但并不局限于此。
