孕期避孕指导对产后避孕行为的影响

目的　了解孕期给予避孕指导对产后避孕方法选择、使用率及其产后 1年内再次妊娠率的影响。　方法　募集 5 2 7名孕妇 ,随机分为干预组和对照组 ,干预组在孕期接受专家的避孕指导 ,对照组接受常规的孕期教育。干预组 2 5 4例和对照组 2 6 3例在产后 16周及 2 4 6例和 2 4 9例在 5 2周接受随访。　结果　产后 16周 2组各种避孕方法使用率差异无显著性 (P>0 .0 5 ) ,已恢复性生活者中干预组的避孕率 97.8(178/ 182 )高于对照组 92 .8% (192 / 2 0 7)差异有显著性 (χ2 =4 .5 7,P>0 .0 5 ) ;2组有 4 3.7% (2 2 6 / 5 17)的对象夫妇采用避孕套 ;平均性生活恢复和产后避孕开始使用之间的时距 ,干预组为 (0 .2± 0 .9)周 ,对照组为 (0 .3± 1.2 )周 ,差异无显著性 ;产后 16周表示产后未来 8个月内可能更换现用避孕方法的有 5 2 .2 % (2 70 / 5 17) ,其中约 30 %的准备放置宫内节育器。在产后5 2周时 ,干预组 5 1.6 % (12 7/ 2 4 6 )和对照组 4 0 .2 % (10 0 / 2 4 9)的使用避孕套 ,差异有显著性 (χ2 =6 .2 7,P>0 .0 5 ) ,但其他避孕方法差异无显著性 (P>0 .0 5 ) ;干预组 2 .8% (7/ 2 4 6 )和对照组 2 .0 %(5 / 2 4 9)曾经使用过紧急避孕方法 ,2组共 79.6 % (394 / 4 95 )从未听说过紧急避孕方法或仅一知半解

Study on effectiveness of prenatal contraceptive advice on postpartum contraceptive practice

Objectives To study the effects of prenatal contraceptive advice on postnatal contraceptive pattern (choice of contraception and repregnant rate within one year postpartum). Methods 527 pregnant women were randomized into study group and control group.The study group received expert contraceptive advice prenatally the standard adice was routinely given in controls.Both groups followed up at 16 and 52 weeks postpartum by telephone or mails. Results At 16 week pastpartum the study group had signifieantly higher Contracepline rate then that of the control group.Both groups had similar contraceptive pattern at 16 weeks postpartum,over 45 % subjects and controls chose condom as first choice of postnatal contraceptive method.There was no significant difference on the timing to resume sex or initiate contraception use between two groups.Over 50 % of both groups considered to switching to other contraceptive method after 16 weeks,and 30 % among of them preferred to choose IUD as a long-term contraception.At 52 weeks postpartum,over 51.6 % of subjects and over 40 % of controls used condoms (P<0.05).However,there was no significant difference on other methods.A very few women under went emergency contraception up to 52 weeks postpartum.56 women had conceived again and had abortion within one year after childbirth.Most of them used condom,spermicides and/or rhythm during the conception cycle. Conclusion Subjects and controls had no significant differences on choice of contraception methods,timing to initiate postnatal contraception,and repregnant rates.Therefore,A very little effect of prenatal contraception advice was showed on postpartum Contraception.