干旱区生态环境知识资源中心(Arid): The impact of maternal body mass index on the rate of obstetric anal sphincter injury in nulliparous women: A Victorian retrospective cohort study

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DOI	10.1111/ajo.13091
	The impact of maternal body mass index on the rate of obstetric anal sphincter injury in nulliparous women: A Victorian retrospective cohort study
	Constable, Laura 1,2,3; Monga, Deepika 1,2; Mylonas, Georgia 1,4; O'; Connor, Ellie 1
通讯作者	Constable, Laura
来源期刊	AUSTRALIAN & NEW ZEALAND JOURNAL OF OBSTETRICS & GYNAECOLOGY
ISSN	0004-8666
EISSN	1479-828X
出版年	2020
卷号	60 期号:4 页码:514-521
英文摘要	Background Maternal obesity is an important comorbidity in contemporary obstetrics practice and is associated with significantly increased perinatal complications. Obstetric anal sphincter injury (OASIS) sustained during labour can lead to faecal incontinence, chronic pain and effects on quality of life. Currently, it is unclear if maternal body mass index (BMI) influences the risk of sustaining OASIS. Aim To investigate the impact of increased BMI on the rate of OASIS among nulliparous women. Materials and Methods A retrospective cohort study was conducted, which included nulliparous women with singleton, vaginal deliveries >= 37 weeks gestation at a Victorian regional centre between 2007 and 2017 (n = 3335). Logistic regression was performed to calculate unadjusted and adjusted odds ratios (aOR). Women were grouped by World Health Organization BMI categories, and the rates of OASIS were evaluated. Results Women with a BMI >= 25 were significantly less likely to develop OASIS compared to women with a BMI < 25 (aOR 0.60, 95% CI 0.41-0.89). Women with a BMI >= 35 had significantly decreased odds of OASIS compared to normal weight women (aOR 0.27, 0.10-0.78). While not statistically significant, the odds of OASIS decreased with each increase in BMI class. Other statistically significant risk factors were maternal age, birth weight, forceps delivery, non-smokers (aOR 4.03, 1.46-11.1) and diabetes mellitus (aOR 9.48, 2.1-41.4). Conclusion Women with a BMI >= 25 were less likely to sustain OASIS compared to women with a BMI < 25. Furthermore, the odds of OASIS decreased for each increase in BMI category. These findings warrant further investigation into the mechanism of this protective effect.
英文关键词	body mass index logistic regression obesity obstetric anal sphincter injury perineum
类型	Article
语种	英语
国家	Australia
收录类别	SCI-E
WOS记录号	WOS:000496134100001
WOS关键词	SEVERE PERINEAL TRAUMA ; RISK-FACTORS ; LACERATIONS ; PREGNANCY ; TERM
WOS类目	Obstetrics & Gynecology
WOS研究方向	Obstetrics & Gynecology
EI主题词	2019-11-13
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310844
作者单位	1.Ballarat Hlth Serv, Ballarat, Vic, Australia; 2.Deakin Univ, Geelong, Vic, Australia; 3.Eastern Hlth, Melbourne, Vic, Australia; 4.Univ Notre Dame, Sydney, NSW, Australia
推荐引用方式 GB/T 7714	Constable, Laura,Monga, Deepika,Mylonas, Georgia,et al. The impact of maternal body mass index on the rate of obstetric anal sphincter injury in nulliparous women: A Victorian retrospective cohort study[J],2020,60(4):514-521.
APA	Constable, Laura,Monga, Deepika,Mylonas, Georgia,O',&Connor, Ellie.(2020).The impact of maternal body mass index on the rate of obstetric anal sphincter injury in nulliparous women: A Victorian retrospective cohort study.AUSTRALIAN & NEW ZEALAND JOURNAL OF OBSTETRICS & GYNAECOLOGY,60(4),514-521.
MLA	Constable, Laura,et al."The impact of maternal body mass index on the rate of obstetric anal sphincter injury in nulliparous women: A Victorian retrospective cohort study".AUSTRALIAN & NEW ZEALAND JOURNAL OF OBSTETRICS & GYNAECOLOGY 60.4(2020):514-521.