Birth Journal Impact Factor & Information

Publisher: Wiley

Journal description

Birth: Issues in Perinatal Care is a multidisciplinary, refereed journal devoted to issues and practices in the care of childbearing women, infants, and families. It is written by and for professionals in maternal and neonatal health, nurses, midwives, physicians, public health workers, childbirth educators, lactation counselors, and other perinatal caregivers and policy makers.The aims of Birth areÖ To publish well-designed research in pregnancy and childbirth, from sophisticated advances in medicine to the parents' physical and emotional needs; To provide a timely and lively forum for current issues in maternal and newborn care and education; To underline the importance of evidence-based medicine in making effective changes in clinical practices.

Current impact factor: 1.26

Impact Factor Rankings

2015 Impact Factor Available summer 2016
2014 Impact Factor 1.264
2013 Impact Factor 2.048
2012 Impact Factor 2.926
2011 Impact Factor 2.182
2010 Impact Factor 1.821
2009 Impact Factor 1.919
2008 Impact Factor 2.836
2007 Impact Factor 2.217
2006 Impact Factor 2.058
2005 Impact Factor 1.836
2004 Impact Factor 1.981
2003 Impact Factor 1.709
2002 Impact Factor 1.424
2001 Impact Factor 0.917
2000 Impact Factor 1.25
1999 Impact Factor 0.915
1998 Impact Factor 1.164
1997 Impact Factor 0.907
1996 Impact Factor 0.763
1995 Impact Factor 0.814
1994 Impact Factor 0.857
1993 Impact Factor 1.137
1992 Impact Factor 0.536

Impact factor over time

Impact factor

Additional details

5-year impact 2.61
Cited half-life 8.60
Immediacy index 0.30
Eigenfactor 0.00
Article influence 0.76
Website Birth: Issues in Perinatal Care website
Other titles Birth (Berkeley, Calif.: Online), Birth
ISSN 1523-536X
OCLC 40695569
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details


  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Restrictions
    • 12 months embargo
  • Conditions
    • Some journals have separate policies, please check with each journal directly
    • On author's personal website, institutional repositories, arXiv, AgEcon, PhilPapers, PubMed Central, RePEc or Social Science Research Network
    • Author's pre-print may not be updated with Publisher's Version/PDF
    • Author's pre-print must acknowledge acceptance for publication
    • Non-Commercial
    • Publisher's version/PDF cannot be used
    • Publisher source must be acknowledged with citation
    • Must link to publisher version with set statement (see policy)
    • If OnlineOpen is available, BBSRC, EPSRC, MRC, NERC and STFC authors, may self-archive after 12 months
    • If OnlineOpen is available, AHRC and ESRC authors, may self-archive after 24 months
    • Publisher last contacted on 07/08/2014
    • This policy is an exception to the default policies of 'Wiley'
  • Classification
    ​ yellow

Publications in this journal

  • Birth 09/2015; 42(3). DOI:10.1111/birt.12187
  • Birth 09/2015; 42(3):202-5. DOI:10.1111/birt.12183
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    ABSTRACT: Encouragement and skills provided to mothers during the postpartum period have been found to be successful in increasing exclusive breastfeeding rates. However, evidence from developing countries is limited. This study aimed to ascertain whether education and skill support provided by health workers during the postpartum period were associated with increased duration of exclusive breastfeeding in Western Nepal. A community-based prospective cohort study was conducted between January and October 2014, in the Rupandehi district of Nepal. Information on breastfeeding promotion provided by health workers after birth was collected from 649 mothers. The association between breastfeeding promotion and exclusive breastfeeding was investigated using multivariable Cox regression analysis. Of the 649 mothers, 35 percent received all eight types of breastfeeding promotion advice, and 60 percent received six or more such types of advice. Breastfeeding promotion, such as "breastfeeding on demand" (hazard ratio [HR] 0.74 [95% CI 0.59-0.92]) and "not to provide pacifier or teats" (HR 0.82 [95% CI 0.68-0.97]), were significantly associated with a lower risk of exclusive breastfeeding cessation. The dose-response relationship was also significant for the number of advices received (HR 0.94 [95% CI 0.90-0.97]). This study provides evidence that breastfeeding education and support immediately after childbirth could increase the duration of breastfeeding. The results suggest further attention to breastfeeding promotion in all maternity hospitals and birthing centers through skilled birth attendants. © 2015 Wiley Periodicals, Inc.
    Birth 08/2015; DOI:10.1111/birt.12184
  • Birth 08/2015; DOI:10.1111/birt.12192
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    ABSTRACT: Background Indonesia has a major problem with iron deficiency anemia among pregnant women. A new model named the Four Pillars Approach was designed to improve antenatal care for these women. This study aimed to measure the effectiveness of the model in managing pregnant women with iron deficiency anemia.Method We used a nonrandomized controlled intervention study. The study, with the Four Pillars Approach as intervention versus usual care as its control, was conducted in two provinces in Java (Indonesia) during the period from March 2012 until May 2013. Main outcome measures were a difference of Hb level ≥ 0.5 g/dL, the number of women who attended five or more antenatal care visits, and birthing with a skilled birth attendant.ResultsThree hundred fifty-four participants were enrolled in the study. Participants in the intervention group had an adjusted odds ratio of 25.0 (95% CI 12.03–52.03, p = 0.001) for increased hemoglobin of ≥ 0.5 g/dL at 35–37 weeks of gestation, compared with the control group. In the intervention group, 95.0 percent of women had five or more antenatal care visits, compared with 57.2 percent (p = 0.001) in the control group. All births in both groups were assisted by skilled birth attendants.Conclusion The Four Pillars Approach is effective in increasing the hemoglobin level and the frequency of antenatal care visits of participants when compared with the usual care for pregnant women with anemia.
    Birth 08/2015; DOI:10.1111/birt.12181
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    ABSTRACT: Background Many women from socially disadvantaged groups discontinue breastfeeding in the early postnatal period before lactation is fully established. This suggests that existing health service practices do not adequately meet the breastfeeding support needs of this population. The aim of this meta-synthesis is to review the literature exploring how women from socioeconomically deprived backgrounds experience breastfeeding establishment and to identify factors associated with supportive practice.Methods The meta-synthesis includes qualitative studies exploring the perception of women from disadvantaged groups of in-hospital and professionally led interventions to support the establishment of breastfeeding. Searches were conducted for studies published between 1992 and 2013; after critical appraisal, eight studies were retained.ResultsThree overarching themes of the influences on maternal perception of the efficacy of breastfeeding support were identified. These included practical skill and knowledge of the breastfeeding process, the influence of psychological factors on perceived breastfeeding ability, and the provision of a person-centered approach to infant feeding support.Conclusions The findings illustrate that the factors associated with supportive breastfeeding practice are extensive, complex, and interrelated. Strategies which enable mothers to gain confidence in their ability to successfully breastfeed by acquiring technical expertise, which offer positive encouragement, and which are culturally specific are more likely to be perceived as supportive by women from socially disadvantaged groups.
    Birth 08/2015; DOI:10.1111/birt.12180
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    ABSTRACT: The objective of this prospective cohort study was to assess whether the 45-minute prehospital limit for ambulance transfer is met in case of postpartum hemorrhage (PPH) after midwifery-supervised home birth in The Netherlands and evaluate the process of ambulance transfer, maternal condition during transfer, and outcomes in relation to whether this limit was met. Using ambulance report forms and medical charts, ambulance intervals, urgency coding, clinical condition (using the lowest Revised Trauma Score, [RTS]), and maternal outcomes were collected. From April 2008 to April 2010, midwives reported 72 cases of PPH. Associations between duration of the ambulance transfer, maternal condition during ambulance transfer and outcomes were analyzed. The main outcome measures were duration of ambulance transfer, RTS, blood loss, surgical procedures, and blood transfusions. Seventy-two cases were reported, 18 (25%) were excluded: 54 cases were analyzed. In 63 percent, the 45-minute prehospital limit was met, 75.9 percent received a RTS of 12, indicating optimal Glasgow Coma Scale, systolic blood pressure, and respiratory frequency. In 24.1 percent a decrease in systolic blood pressure was found (RTS 10 or 11). We found no difference in outcomes between women with different RTS or in whom the 45-minute prehospital limit was or was not met. We found no relation between the duration of ambulance transfer and maternal condition or outcomes. All women fully recovered. The low-risk profile of women in primary care, well-organized midwifery, and ambulance care in The Netherlands are likely to contribute to these findings. © 2015 Wiley Periodicals, Inc.
    Birth 07/2015; 42(3). DOI:10.1111/birt.12171
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    ABSTRACT: In 2009 there were an estimated 2.6 million stillbirths worldwide. In the United States, a 2007 systematic review found little consensus about professional behaviors perceived by parents to be most helpful or most distressing. In the United Kingdom, a bereaved parents' organization has highlighted discordance between parental views and clinical guidelines that recommend clinicians do not encourage parents to see and hold their baby. The objective of this review was to identify and synthesize available research reporting parental outcomes relating to seeing and holding. We undertook a systematic review. We included studies of any design, reporting parental experiences and outcomes. Electronic searches (PubMed and PsychINFO) were conducted in January 2014. Three authors independently screened and assessed the quality of the studies before abstracting data and undertaking thematic analysis. We reviewed 741 records and included 23 studies (10 quantitative, 12 qualitative, and 1 mixed-method). Twenty-one studies suggested positive outcomes for parents who saw or held their baby. Increased psychological morbidity was associated with current pregnancy, choice not to see their baby, lack of time with their baby and/or insufficient mementos. Three themes were formulated "positive effects of contact within a traumatic life event," "importance of role of health professionals," and "impact on mothers and fathers: similarities and differences." Stillbirth is a risk factor for increased psychological morbidity. Parents seeing and holding their stillborn baby can be beneficial to their future well-being. Since 2007, there has been a proliferation of studies that challenge clinical guidelines recommending that clinicians do not encourage parental contact. © 2015 Wiley Periodicals, Inc.
    Birth 06/2015; 42(3). DOI:10.1111/birt.12176
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    ABSTRACT: Although policies have been implemented to improve a breastfeeding-friendly environment, few studies have examined the effectiveness of these policies in Taiwan. We examined progress in breastfeeding environmental factors from 2008 through 2011 in Taiwan and their association with continuing exclusive and any breastfeeding until 6 months postpartum. This study was a secondary data analysis, using four cross-sectional and national surveys of 1,453-12,410 postpartum women in the years 2008 through 2011. Data were collected by telephone interviews, using structured questionnaires with randomly selected postpartum women who gave birth in the indicated years. Results were weighted to enhance representativeness. Logistic regression was used to compute adjusted odds ratios for the use of breastfeeding-friendly services on breastfeeding continuation. The rates of breastfeeding at 6 months postpartum generally increased from 2008 to 2011, despite a drop in 2010. The use of breastfeeding-friendly environmental factors, including breastfeeding rooms in public places or workplaces, breastfeeding consultation phone lines/websites, breastfeeding volunteers, and delivery in baby-friendly hospitals, increased from 2008 to 2011. However, the percentage of women participating in breastfeeding support groups decreased during that period. After controlling for maternal characteristics, use of each of the breastfeeding-friendly environmental factors was significantly and positively associated with continuing breastfeeding until 6 months postpartum. The adjusted odds ratios for breastfeeding-friendly environmental factors ranged from 1.15 to 5.04. The breastfeeding-friendly environment and long-term breastfeeding rates in Taiwan improved from 2008 to 2011, supporting the effectiveness of policy and public health efforts. © 2015 Wiley Periodicals, Inc.
    Birth 06/2015; 42(3). DOI:10.1111/birt.12170
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    ABSTRACT: To assess the outcomes and costs of hospital admission during the latent versus active phase of labor. Latent labor hospital admission has been consistently associated with elevated maternal risk for increased interventions, including epidural anesthesia and cesarean delivery, longer hospital stay, and higher utilization of hospital resources. A cost-effectiveness model was built to simulate a theoretic cohort of 3.2 million term, medically low-risk women either being admitted in latent labor (< 4 cm dilation) or delaying admission until active labor (≥ 4 cm dilation). Outcomes included epidural use, mode of delivery, stillbirth, maternal death, and costs of care. All probability, cost, and utility estimates were derived from the literature, and total quality-adjusted life years were calculated. Sensitivity analyses and a Monte Carlo simulation were used to investigate the robustness of model assumptions. Delaying admission until active labor would result in 672,000 fewer epidurals, 67,232 fewer cesarean deliveries, and 9.6 fewer maternal deaths in our theoretic cohort as compared to admission during latent labor. Additionally, delaying admission results in a cost savings of $694 million annually in the United States. Sensitivity analyses indicated the model was robust within a wide range of probabilities and costs. Monte Carlo simulation found that delayed admission was the optimal strategy in 76.79 percent of trials. Delaying admission until active labor is a dominant strategy, resulting in both better outcomes and lower costs. Issues related to clinical translation of these findings are explored. © 2015 Wiley Periodicals, Inc.
    Birth 06/2015; 42(3). DOI:10.1111/birt.12179
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    ABSTRACT: A major contributor to the increase in cesarean deliveries over recent decades is the decline in vaginal births after cesarean (VBAC). Racial and ethnic disparities in other perinatal outcomes are widely recognized, but few studies have been directed toward racial/ethnic differences in VBAC rates. We used the population-based Massachusetts Pregnancy to Early Life (PELL) database to investigate racial/ethnic differences in rates of VBAC for Massachusetts residents with one prior cesarean from 1998 to 2008. The overall VBAC rate was 17.3 percent. After adjusting for demographic, behavioral, and medical risk factors, non-Hispanic Asian mothers had a greater likelihood of VBAC than non-Hispanic white mothers (adjusted risk ratio 1.31 [95% CI 1.23-1.39]). No other racial/ethnic group was significantly different from non-Hispanic whites in adjusted analyses. The likelihood of VBAC also decreased with increasing maternal age. Non-Hispanic Asian women are significantly more likely to have VBAC than non-Hispanic white women. Efforts to reduce cesarean delivery rates in the United States should address these disparities. Future research should investigate factors underlying these differences to ensure that all women have access to appropriate maternity care services. © 2015 Wiley Periodicals, Inc.
    Birth 06/2015; 42(3). DOI:10.1111/birt.12174
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    ABSTRACT: Background The predictive factors of secondary postpartum hemorrhage (PPH) are little known. Our principal objective was to determine if immediate PPH is a risk factor for severe secondary PPH. We also sought to identify other factors associated with severe secondary PPH.Methods Our historical cohort study included all women who gave birth (≥ 22 weeks) in our level III hospital from 2004 through 2013. The hospital discharge database enabled us to identify all women readmitted during the 42-day postpartum period or who underwent a surgical, medical, or interventional radiology procedure during their immediate postpartum hospitalization. We then examined all medical records to identify the cases involving severe secondary PPH. We studied the known risk factors of secondary PPH and assessed other potential ones: maternal age, multiple pregnancy, induction of labor, cesarean birth, preterm birth, and stillbirth.ResultsThe study included 63 women with a severe secondary PPH and 25,696 women without a secondary PPH. Immediate PPH (aOR 2.7 [95% CI 1.3–5.6]) and maternal age ≥ 35 years (aOR 2.0 [95% CI 1.1–3.7]) were the only factors associated with severe secondary PPH.DiscussionThis cohort study confirms that immediate PPH is a risk factor for severe secondary PPH and reports for the first time an association between secondary PPH and advanced maternal age. It is likely that risk factors for immediate PPH are also risk factors for severe secondary PPH and thus that immediate PPH may be an intermediate factor between its own known risk factors and secondary PPH.
    Birth 05/2015; 42(3). DOI:10.1111/birt.12175
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    ABSTRACT: Media interest in cesarean delivery has grown in recent years driven both by rising cesarean delivery rates and the decision by the American College of Obstetrics and Gynecology (ACOG) to permit elective cesarean (EC) delivery. A content analysis of United States newspaper and magazine articles from 2000 to 2013 (n = 131 articles) was completed to understand how the news media portrays ECs. The majority of articles (71.8%) emphasized reasons to support women having an EC, while 38.2 percent of the articles exhibited themes of physician support for ECs. Relatively few articles mentioned reasons against ECs either from the women's perspective (11.5%) or the practitioners' (3.8%). The most common themes given for women choosing ECs were convenience/scheduling (48.9%), avoidance of pain or fear of labor (29.8%), and physical harm to women from vaginal birth (17.6%). Doctors' perspectives were less prevalent in the media than women's perspectives, but when mentioned they were almost exclusively in support of ECs for reasons including avoiding malpractice (28.2%), avoiding physical harm to the woman or baby (16.8%), and timing/scheduling (14.5%). Media coverage suggests ECs are widely accepted by both women and doctors, with women choosing an EC mainly for convenience/scheduling and fear. However, 43 percent of doctors surveyed by ACOG said they were not willing to perform the procedure, and surveys report that mothers rarely request an EC. © 2015 Wiley Periodicals, Inc.
    Birth 04/2015; 42(2). DOI:10.1111/birt.12161
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    ABSTRACT: External cephalic version (ECV) reduces the chance of breech presentation at term birth and lowers the chance of a cesarean delivery. ECV services are now in place in many units in the United Kingdom but their effectiveness is unknown. The aim of this study was to investigate the reasons for breech presentation at term birth. We performed a retrospective cohort study of 394 consecutive babies who were in breech presentation at term birth in a large United Kingdom maternity unit that offers ECV. The cohort was analyzed over two time periods 10 years apart: 1998-1999 and 2008-2009. Only 33.8 percent of women had undergone a (failed) ECV attempt. This low proportion was mainly because breech presentation was not diagnosed antenatally (27.9%). Other contributing factors were: ECV not offered by clinicians (12.2%), ECV declined by women (14%), and contraindications to ECV (10.7%). Over the 10-year period, the proportion of breech presentations that were not diagnosed antenatally increased from 23.2 to 32.5 percent (p = 0.04), which constituted 52.8 percent of women who had not undergone an ECV attempt in 2008-2009. Failure of clinicians to offer ECV reduced from 21.6 to 3.0 percent (p = 0.0001) and the proportion of women declining ECV decreased from 19.1 to 9.0 percent (p = 0.005). Overall, ECV attempts increased from 28.9 to 38.5 percent (p = 0.05). Although ECV counseling, referral, and attempt rates have increased, failure to detect breech presentation antenatally is the principal barrier to successful ECV. Improved breech detection would have a greater impact than methods to increase ECV success rates. © 2015 Wiley Periodicals, Inc.
    Birth 04/2015; 42(2). DOI:10.1111/birt.12162
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    ABSTRACT: The principal objective of our study was to describe the frequency of severe secondary postpartum hemorrhages (PPH). Our secondary objectives were to describe the different causes of PPH and to assess if the PPH etiologies varied by parity. This is a historical cohort study covering the period from January 1, 2004, through February 13, 2013, in a level III maternity ward. Women were eligible if they were treated for severe secondary PPH during their postpartum hospitalization or were admitted for it after discharge but before the 42nd day postpartum, regardless of the type of delivery. Women were excluded if they gave birth before 22 weeks of gestation or if they had experienced only an immediate PPH (≤ 24 hours after delivery). Eligible patients were identified by the hospital's administrative software. Primiparas and multiparas were compared with Student's t test and a chi-squared or Fisher's exact test. The incidence of severe secondary PPH was 0.23 percent (n = 60/26,023). The mean time between delivery and PPH onset was 13.4 ± 10.8 days. The women's mean age was 30.4 ± 5.7 years and their mean body mass index was 23.4 ± 5.7 kg/m². Placental retention was the cause to which these hemorrhages were most frequently attributed (30.0%). Subinvolution of the placental bed was noted in 13.3 percent of the patients, endometritis in 10.0 percent, pseudoaneurysm of the uterine artery in 3.3 percent, and excessively strong resumption of menses in 3.3 percent; no cause could be determined for 16.7 percent of the cases. Neither clinical signs nor causes differed by parity. Secondary PPH is rare. Accurate diagnosis is based most often on histopathologic findings. © 2015 Wiley Periodicals, Inc.
    Birth 04/2015; 42(2). DOI:10.1111/birt.12164