Objective To investigate the awareness level and associated factors of long-acting reversible contraceptives (LARC) among women with induced abortion due to unintended pregnancy.Methods This study was carried out between July and October 2015. With convenience sampling, we recruited 388 women underwent induced abortion due to unintended pregnancy in Department of Obstetrics and Genecology, the Third Affiliated Hospital,Sun Yat-sen University and surveyed them by a self-developed LARC-related Knowledge Questionnaire consisting of three dimensions (subdermal implants-related knowledge, contraceptive injections-related knowledge and intrauterine devices-related knowledge) covering 36 items. Results Of the 388 questionnaires administered, 381 were returned with a response rate of 98.2％. The mean age of the final participants was (26.9±5.7) years (range 16 to 44 years). The average total score of LARC-related Knowledge Questionnaire was (6.4±5.1). Of the dimensions, intrauterine device-related knowledge had the highest average standard score (P<0.05). Among the participants, 88.7％ were aware of intrauterine devices, but only 13.1％ knew about subdermal implants, and 11.5％ knew about contraceptive injections; 74.8％ knew that the fertility would return to normal after the intrauterine devices were removed, while few knew the fertility could be recovered after stopping the use of subdermal implants or contraceptive injections (10.5％ and 7.6％, respectively). More than one in fifth of the participants hold that intrauterine devices were not suitable for most women of childbearing age (fertile women) and couldn't be placed during induced abortion. In addition, age (β=2.157,t=3.925,P<0.001) and marital status (β=-2.714,t=-4.697,P<0.001) were the associated factors for the average total score for LARC-related Knowledge Questionnaire analyzed with multiple liner regression models.Conclusion Not many women with induced abortion due to unintended pregnancy were awareness of LARC-related knowledge. Although they knew more about intrauterine devices than subdermal implants and contraceptive injections, they were not clear the suitable population and timing of placement in induced abortion of intrauterine devices. Age and marital status mainly affected the awareness level of LARC-related knowledge. The older the married women were, the more they knew about the LARC-related knowledge.%目的 调查意外妊娠人工流产女性长效可逆避孕(LARC)知识知晓现状,并分析其影响因素.方法 2015年7—10月,采用便利抽样法,抽取中山大学附属第三医院妇产科收治的意外妊娠人工流产女性388例.采用自行设计的LARC知识问卷进行问卷调查.LARC知识问卷包括皮下埋植剂知识、避孕针知识、宫内节育器知识3个维度共36个条目.结果 共发放问卷388份,回收有效问卷381份,有效回收率98.2％.381例意外妊娠人工流产女性年龄16～44岁,平均年龄(26.9±5.7)岁.意外妊娠人工流产女性LARC知识问卷总分为(6.4±5.1)分.意外妊娠人工流产女性宫内节育器知识维度标准化得分高于其他维度标准化得分(P<0.05).88.7％的意外妊娠人工流产女性知道有宫内节育器这种避孕方法,知道有皮下埋植剂、避孕针这种避孕方法的较少(分别占13.1％、11.5％);74.8％的意外妊娠人工流产女性知道取出宫内节育器后会恢复生育能力,知道取出皮下埋植剂、停止使用避孕针后会恢复生育能力的较少(分别占10.5％、7.6％).意外妊娠人工流产女性在"宫内节育器适宜各年龄段的大多数育龄期女性(可以怀孕的女性)使用"和"宫内节育器可以在人工流产术(手术流产)时放置"2个条目的错误率高达20.0％以上.多元线性回归分析结果显示,年龄(偏回归系数=2.157,t=3.925,P<0.001)、婚姻状况(偏回归系数=-2.714,t=-4.697,P<0.001)是意外妊娠人工流产女性LARC知识问卷总分的影响因素.结论 意外妊娠人工流产女性LARC知识水平较低,其中对宫内节育器的了解情况较皮下埋植剂和避孕针好,但对其适用人群和在人工流产术中放置的时机等方面的认知存在误区;意外妊娠人工流产女性LARC知识主要的影响因素有年龄和婚姻状况,年龄较大、已婚的意外妊娠人工流产女性LARC知识水平较高.
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