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

Publications in this journal

  • Birth 11/2015; DOI:10.1111/birt.12209
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    ABSTRACT: Background: Latinas have high overall breastfeeding initiation rates, yet Puerto Ricans have among the lowest exclusive breastfeeding rates. This study sought to determine if acculturation was associated with intent to breastfeed in a predominantly Puerto Rican population. Methods: A cohort of Latina women were enrolled in Proyecto Buena Salud, and provided information on infant feeding intent (n = 1,323). Acculturation was assessed via the Psychological Acculturation Scale (PAS), language preference, and generation in the United States. Results: Increasing acculturation as measured by English language preference (aOR 0.61 [95% CI 0.42-0.88]) and second or third generation in the United States (aOR 0.70 [95% CI 0.52-0.95)] was inversely associated with odds of intending to exclusively breastfeed. Similarly, women with higher levels of acculturation as measured by the PAS (aOR 0.67 [95% CI 0.45-0.99]), English language preference (aOR 0.48 [95% CI 0.33-0.70]) and second or third generation in the United States (aOR 0.42 [95% CI 0.31-0.58]) were less likely to report intent to combination feed as compared with women with lower acculturation. Conclusions: Acculturation was inversely associated with intent to exclusively breastfeed and intent to combination feed in this predominantly Puerto Rican sample.
    Birth 11/2015; DOI:10.1111/birt.12199
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    ABSTRACT: Objective: The aim of our study was to determine the optimal time for manual placental removal in an uncomplicated third stage while taking into consideration the risk for blood transfusion. Risk factors for postpartum blood transfusions were studied. Methods: Computerized data of all vaginal deliveries at our labor and delivery unit from 2010 to 2014 were obtained. Cases of complete and spontaneous placental separation up to 60 minutes into the third stage of labor were extracted for analysis. Patient demographics, obstetrical history, delivery course, and outcome were assessed as well as blood product requirements during the postpartum period. Receiver-operating curves (ROC) for prediction of blood transfusion during the third stage were calculated and risk factors were assessed. Results: 31,226 vaginal deliveries occurred during the study period and 28,586 deliveries culminated with complete and spontaneous placental separation, 25,160 of which met inclusion criteria. Independent risk factors for blood transfusions were primiparity, longer second and third stage length, labor induction, and maternal intrapartum fever. ROC curves showed that the optimal cutoff for the prediction of blood transfusions was 17 minutes into the third stage of labor. Waiting more than 30 minutes for placental separation increases the risk for blood transfusion more than threefold. Conclusions: A third stage longer than 17 minutes is associated with an increased risk for blood transfusion postpartum. After more than 30 minutes, the risk for blood transfusions increases more than threefold.
    Birth 11/2015; DOI:10.1111/birt.12200
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    ABSTRACT: Background: The United States has recently experienced increases in both its rate of obesity and its cesarean rate. Our objective was to use a new item measuring prepregnancy body mass index (BMI) on the U.S. Standard Certificate of Live Birth to examine at a population level the relationship between maternal obesity and primary cesarean delivery for women at otherwise low risk for cesarean delivery. Methods: By 2012, 38 states with 86 percent of United States births had adopted the U.S. Standard Certificate. The sample was limited to the 2,233,144 women who had a singleton, vertex, term (37-41 weeks) birth in 2012 and no prior cesarean. We modeled the likelihood of a primary cesarean by BMI category, controlling for maternal socio-demographic and medical characteristics. Results: Overall, 46.4 percent of otherwise low-risk mothers had a prepregnancy BMI in the overweight (25.1%) or obese (21.3%) categories, with the obese category distributed as follows: obese I (BMI 30.0-34.9, 12.4%); obese II (BMI 35.0-39.9, 5.5%); and obese III (BMI 40+, 3.5%). Obesity rates were highest among American Indian and Alaska Native (32.5%) and non-Hispanic black mothers (30.5%). After adjustment for demographic and medical risks, the adjusted risk ratios (95% confidence intervals) of cesarean for low-risk primiparas were: 1.61 (1.60-1.63) for obese I, 1.86 (1.83-1.88) for obese II, and 2.21 (2.18-2.25) for obese III mothers compared with mothers in the normal weight category. Discussion: A relationship between prepregnancy obesity and primary cesarean delivery among relatively low-risk mothers remained even after controlling for social and medical risk factors.
    Birth 10/2015; DOI:10.1111/birt.12201
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    ABSTRACT: Objective: Normal progress of labor is a subject for discussion among professionals. The aim of this study was to assess the duration of labor in women with a planned home birth and spontaneous onset who gave birth at home or in hospital after transfer. Methods: This is a population-based study of home births in four Nordic countries (Denmark, Iceland, Norway, and Sweden). All midwives assisting at a home birth from 2008 to 2013 were asked to provide information about home births using a questionnaire. Results: Birth data from 1,612 women, from Denmark (n = 1,170), Norway (n = 263), Sweden (n = 138), and Iceland (n = 41) were included. The total median duration from onset of labor until the birth of the baby was approximately 14 hours for primiparas and 7.25 hours for multiparas. The duration of the different phases varied between countries. Blood loss more than 1,000 mL and perineal ruptures that needed suturing were associated with a longer pushing phase and the latter with country of residence, parity, single status, and the baby's weight. Conclusion: In this population of healthy women with a low prevalence of interventions, the total duration of labor was fairly similar to what is described in the literature for multiparas, but longer for primiparas. Although the duration of the phases of labor differed among countries, it was to a minor extent associated with severe outcomes.
    Birth 10/2015; DOI:10.1111/birt.12191
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    ABSTRACT: Background: The experience of the care a woman receives during pregnancy and childbirth has an immediate and long-lasting effect on her well being. The involvement of patients and clients in health care has increased over the last decades. The Dutch maternity care system offers an excellent opportunity to explore and involve women's suggestions for the improvement of midwifery care in the current maternity care model. Methods: This qualitative study is part of the "DELIVER" study. Clients were recruited from 20 midwifery practices. Purposive sampling was used to select the practices. The clients received up to three questionnaires, in which they could respond to the question; "Do you have any suggestions on how your midwife could improve his/her provision of care?" The answers were analyzed with a qualitative thematic content analysis, using the software program MAXQDA. Results: Altogether, 3,499 answers were provided. One overarching concept emerged: clients' desire for individualized care. Within this concept, suggestions could be clustered around 1) provider characteristics: interpersonal skills, communication, and competence, and 2) service characteristics: content and quantity of care, guidance and support, continuity of care provider, continuity of care, information, and coordination of care. Conclusions: Informed by the suggestions of women, care to women and their families could be improved by the following: 1) more continuity of the care provider during the prenatal, natal, and postnatal periods, 2) more information and information specifically tailored for the person, 3) client-centered communication, and 4) a personal approach with 5) enough time spent per client.
    Birth 10/2015; DOI:10.1111/birt.12185

  • 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