Buist R
Department of Obstetrics and Gynaecology, National Women's Hospital, Auckland.
N Z Med J. 1999 Jul 9;112(1091):251-3.
To examine the indications for induction of labour at a tertiary referral hospital and compare operative delivery rates between women in spontaneous labour and those being induced.
Prospective case series over three months. Information obtained from questionnaires, chart reviews and computer delivery summaries.
The overall induction rate was 23%. After 25 exclusions, 438 inductions were studied: 239 by questionnaire and 199 by chart review. Five percent of all inductions were primarily for maternal request or social reasons. Twenty-three percent were for ACHS/RACOG non-defined indications. From the questionnaires, 21% of women induced had requested induction. Spontaneous delivery rates were significantly reduced for induced women, compared with those labouring spontaneously (61.0% versus 72.1%, p<0.001). The Caesarean section rate was significantly increased with induced labour (21.5% versus 14.9%, p<0.001), the increased rate occurring in nulliparae (27.7% versus 19.1%, p=0.008) rather than multiparae (15.1% versus 11.7%, p=0.19). Surgical delivery rates were similar for women induced for defined and non defined indications.
Regardless of the indications for doing so, induction of labour is associated with significantly reduced spontaneous delivery rates overall and an increased Caesarean section rate in nulliparae.
研究一家三级转诊医院引产的指征，并比较自然分娩的女性和引产女性的手术分娩率。
为期三个月的前瞻性病例系列研究。通过问卷调查、病历回顾和计算机分娩总结获取信息。
总体引产率为23%。排除25例后，对438例引产进行了研究：239例通过问卷调查，199例通过病历回顾。所有引产中有5%主要是出于产妇要求或社会原因。23%是因澳大利亚皇家妇产科医师学会（ACHS/RACOG）未明确的指征。从问卷调查来看，引产的女性中有21%要求引产。与自然分娩的女性相比，引产女性的自然分娩率显著降低（61.0%对72.1%，p<0.001）。引产时剖宫产率显著升高（21.5%对14.9%，p<0.001），升高的比率出现在初产妇中（27.7%对19.1%，p = 0.008），而非经产妇中（15.1%对11.7%，p = 0.19）。因明确指征和未明确指征引产的女性手术分娩率相似。
无论引产指征如何，引产总体上与自然分娩率显著降低以及初产妇剖宫产率升高相关。
