History of induced abortion as a risk factor for preterm birth in European countries: results of the EUROPOP survey

Ancel, Pierre‐Yves; Lelong, Nathalie; Papiernik, E; Saurel‐Cubizolles, Marie‐Josèphe; Kaminski, Monique

doi:10.1093/humrep/deh107

Cited by 93 publications

(74 citation statements)

References 34 publications

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“…The occurrence of two or more induced abortion was high in the age group of 25-34 years amounting to 62.2% in the study conducted by Henriet L and Kaminski (8) which was observed in our study with 97 (71.9%) women in the induced abortion group falling in the age group of 25-35 years. This was also consistent with study conducted by Ancel PY et al (11) reporting 83.6% of women with previous abortions falling in the 20-35 year age group. 63(46.7%) women in the induced abortion group were para one which was comparable with the results of Henriet L and Kaminski M (8) study who found 32.9% of the women to be para one.…”

Section: Discussionsupporting

confidence: 93%

Pregnancy Outcome Following Abortion

Annapurna¹,

Devi²,

Kumari³

2015

jebmh

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ABSTRACT:The previous two or three induced -were spontaneous abortion will carry a risk of preterm, ectopic pregnancy. This is to study is to evaluate the outcome of pregnancy with history of previous abortion. MATERIAL AND METHODS: This study was conducted for one and half year period in Regional Institute of Medical Sciences, Imphal, Manipur. RESULTS: We observed that majority of the women in the study fell in 25 to 35 years of age. 116 (71.9%) women with history of induced abortion were aged between 25 to 30 years of age. 52(73.3%) women with history of spontaneous abortions were less than 30 years of age. There were only 7(9.7%) women in the spontaneous abortion group who were above 35 years of age. CONCLUSION: We concluded that women with previous history of two or three induced abortions were at risk of preterm birth, very preterm birth and low birth weight babies in the subsequent pregnancies. The risk of caesarean was found to be increased in women with previous two or three spontaneous abortions exposing the women to the morbidity associated with the C-section.

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Section: Discussionsupporting

confidence: 93%

Pregnancy Outcome Following Abortion

Annapurna¹,

Devi²,

Kumari³

2015

jebmh

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“…Contrary to common belief, population-based studies [34][35][36] have found that elective pregnancy terminations in the first and second trimesters are associated with a very small but apparently real increase in the risk of subsequent spontaneous preterm birth (PTB). 37 The mechanism is unknown.…”

Section: Identification Of Women With a Prior Preterm Birthmentioning

confidence: 87%

Care for Women with Prior Preterm Birth

Iams

2010

Preterm Birth

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Women who have delivered an infant between 16 and 36 weeks' gestation have an increased risk of preterm birth in subsequent pregnancies. The risk increases with more than 1 preterm birth and is inversely proportional to the gestational age of the previous preterm birth. African American women have rates of recurrent preterm birth that are nearly twice that of women of other backgrounds. An approximate risk of recurrent preterm birth can be estimated by a comprehensive reproductive history, with emphasis on maternal race, the number and gestational age of prior births, and the sequence of events preceding the index preterm birth. Interventions including smoking cessation, eradication of asymptomatic bacteriuria, progestational agents, and cervical cerclage can reduce the risk of recurrent preterm birth when employed appropriately. Keywordscerclage; prevention; progesterone; recurrent; preterm birth; risk estimation Efforts to reduce the incidence of preterm birth cannot yet be called successful but have produced sufficient information to justify management suggestions for clinicians, not only for strategies that do not work but also for those that do. The quality and number of clinical trials of interventions intended to reduce the incidence and/or morbidity of preterm birth has risen substantially in recent years, yielding data that can improve care for women at risk.An important advance has been the revision of the traditional model of preterm birth in which painful contractions or preterm membrane rupture were understood as the most common initial steps preceding cervical change. This concept has been challenged by observations from several clinical studies:• Drugs that arrest or inhibit uterine contractions can delay delivery but do not reliably reduce or prevent preterm birth. [1][2][3][4][5] • Assessment of contraction frequency is not a useful test to predict preterm birth, 6 and its use to detect and arrest initial or recurrent episodes of preterm labor does not affect the rate of preterm birth. [7][8][9] • Antibiotics that eradicate microorganisms associated with preterm birth also do not reliably reduce, and may sometimes increase, the incidence of preterm birth, especially in women with intact membranes. [10][11][12][13][14][15][16][17] • Progestational agents such as 17α-hydroxy-progesterone caproate reduce recurrent preterm birth in some women with a prior preterm birth, 18,19 especially those with early preterm birth 20 and short cervix, 21 but have no effect on preterm birth in multiple gestations. 22,23 NIH Public Access Author ManuscriptAm J Obstet Gynecol. Author manuscript; available in PMC 2013 May 09. NIH-PA Author ManuscriptNIH-PA Author Manuscript NIH-PA Author Manuscript• Cervical cerclage can reduce recurrent preterm birth in women with a prior preterm birth and short cervix 24,25 but increases the risk of preterm birth in women with multiple gestation who also have a short cervix. 24 These findings suggest the following 4 substantive changes in the "contractions change the cervi...

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“…Cases were classified according to the main obstetric complication leading to the preterm birth [18,19]; six mutually exclusive hierarchical groups were defined. The first major complication encountered (moving from group 1 to group 6) was retained, even if other complications lower down the list were also present.…”

Section: Populationmentioning

confidence: 99%

Smoking during pregnancy according to obstetric complications and parity: results of the EUROPOP study

et al. 2007

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This study aimed to analyse the relationship between smoking and preterm birth (22-36 weeks) according to the main obstetric complications leading to the preterm birth, both overall and by parity. The EUROPOP study is a case-control study carried out between 1994 and 1997; 3,787 preterm and 5,602 full-term births were included, from maternity units in 10 countries, using the same protocol. Social, demographic and medical information was collected after delivery, from obstetric records and interviews with the mothers. Cases were classified according to the main obstetric complication (hypertension, haemorrhage, preterm premature rupture of membranes (PPROM), idiopathic spontaneous preterm labour, intrauterine growth retardation, all other causes). Multiple logistic regression analysis was used to control for confounders. Twenty four percent of cases and 20% of controls were smokers. Smoking during pregnancy, heavy smoking (>or=10 cigarettes per day) in particular, was a risk factor for preterm birth (aOR = 1.39, 95% CI:1.20-1.60). Smoking increased the risk of preterm delivery due to all obstetric complications other than hypertension. For these complications, the risk of preterm delivery associated with smoking was higher for multiparae (aOR = 1.46, 95% CI:1.24-1.71) than for primiparae (aOR = 1.18, 95% CI:1.00-1.38). In conclusion, smoking during pregnancy increases the risk of preterm birth among women with all obstetric complications except hypertension. This association is stronger in multiparae than in primiparae and the risk is higher for heavy smokers.

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History of induced abortion as a risk factor for preterm birth in European countries: results of the EUROPOP survey

Abstract: Identifying subgroups of preterm births on the basis of the complications involved in delivery increases our understanding of the mechanisms by which previous induced abortion affects subsequent pregnancy outcomes.

Cited by 93 publications

References 34 publications

Pregnancy Outcome Following Abortion

Pregnancy Outcome Following Abortion

Care for Women with Prior Preterm Birth

Smoking during pregnancy according to obstetric complications and parity: results of the EUROPOP study

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