尼日利亚南部前置胎盘的风险因素。

Risk factors for placenta praevia in southern Nigeria.

作者信息

Eniola A O, Bako A U, Selo-Ojeme D O

机构信息

Department of Obstetrics and Gynaecology, North Tyneside General Hospital, Northshields, NE29 8NH, England.

出版信息

East Afr Med J. 2002 Oct;79(10):535-8. doi: 10.4314/eamj.v79i10.8816.

DOI:10.4314/eamj.v79i10.8816

PMID:12635759

Abstract

OBJECTIVE

To determine the risk factors for placenta praevia in Ile-Ife, southern Nigeria.

DESIGN

A prospective case control study.

SETTING

A tertiary center--Obafemi Awolowo University Teaching Hospital, Ile-Ife, southern Nigeria.

SUBJECTS

One hundred and thirty six patients with confirmed placenta praevia constituted the cases. Controls consisted of one hundred and thirty six patients who delivered at term immediately after each indexed case and did not have placenta praevia.

RESULTS

Cases and controls were similar in terms of twin deliveries (P = 0.72) and past history of uterine surgery (P = 0.47). After adjusting for confounders, factors associated with risk of placenta praevia were history of retained placenta [OR = 6.7(95% CI 1.2-36.6)], previous caesarean section [OR = 4.7, (95% CI 1.9-11.4)], previous abortion [OR = 2.9 (95% CI 1.1-5.1)], grand multiparity [OR = 2.1 (95% CI 1.6-7.1)] and age over 35 years [OR = 1.4 (95% CI 1.2-6.6)].

CONCLUSIONS

From our study, the risk factors for placenta praevia are a history of retained placenta, previous caesarean section, previous abortion, grand multiparity and maternal age over 35 years.

摘要

目的

确定尼日利亚南部伊莱-伊费地区前置胎盘的危险因素。

设计

一项前瞻性病例对照研究。

地点

一家三级医疗中心——尼日利亚南部伊莱-伊费的奥巴费米·阿沃洛沃大学教学医院。

研究对象

136例确诊为前置胎盘的患者作为病例组。对照组由136例在每例索引病例后立即足月分娩且无前置胎盘的患者组成。

结果

病例组和对照组在双胎分娩（P = 0.72）和既往子宫手术史（P = 0.47）方面相似。在对混杂因素进行调整后，与前置胎盘风险相关的因素有胎盘残留史[比值比（OR）= 6.7（95%可信区间1.2 - 36.6）]、既往剖宫产史[OR = 4.7，（95%可信区间1.9 - 11.4）]、既往流产史[OR = 2.9（95%可信区间1.1 - 5.1）]、多产[OR = 2.1（95%可信区间1.6 - 7.1）]以及年龄超过35岁[OR = 1.4（95%可信区间1.2 - 6.6）]。