Previous research on inadequate gestational weight gain among obese women and adverse outcomes has been mixed. The objective of this study was to examine associations between inadequate gain among obese women and antepartum, intrapartum, and infant outcomes.

Obese women from the U.S. Collaborative Perinatal Project were divided into obesity classes I (30.0–34.9 kg/m²) and II/III (> 35.0 kg/m²) and three weight gain categories (inadequate: < 5 kg, adequate: 5–9 kg, excessive: > 9 kg) as defined by the U.S. Institute of Medicine. Associations between 1-kg increments of inadequate gain (< 5 kg) and outcomes were examined. Women with inadequate gain were also compared with women gaining normal (5–9 kg) and excessive (> 9 kg) weight.

Each fewer 1-kg of weight gain increased small-for-gestational age (SGA) risk and reduced large-for-gestational age (LGA) risk by similar magnitude. Compared with excessive gain, inadequate gain reduced the odds of preeclampsia (OR: 0.56, CI: 0.37, 0.84), gestational hypertension (OR: 0.66, CI: 0.47, 0.92), and LGA (OR: 0.48, CI: 0.38, 060) and increased the odds of SGA (OR: 2.26, CI: 1.52, 3.35). Inadequate gain offered fewer advantages over adequate weight gain: lower odds of LGA (OR: 0.75, CI: 0.57, 0.99); increased odds of SGA (OR: 1.86, CI: 1.18, 2.91). Most associations applied to obesity class I but not class II/III women.

Inadequate weight gain poses benefits and risks to mothers and infants, but is preferable to excessive gain. The risks and benefits apply differently to class I versus class II/III obese women, indicating the need for weight gain recommendations by obesity class.

Antenatal smoking cessation guidelines have been available in Victoria, Australia, for the past decade. The objective of this study was to assess to what extent introduction of smoking cessation guidelines in pregnancy changed practice in Victorian public hospitals.

Two population-based postal surveys of women giving birth in the state of Victoria, conducted in 2000 and 2008 before and after implementation of smoking cessation guidelines. Self-administered questionnaires were distributed by hospitals and home birth practitioners to women 5–6 months postpartum.

Surveys were completed and returned by 67 percent of eligible women (1,616/2,412) in 2000 and 51% (2,900/5,681) in 2008. Compared with the 2000 survey, women in the 2008 survey attending public sector care were more likely: to receive advice on how to stop smoking (Adjusted Odds Ratio: 2.2, 95% CI 1.5–3.2); to be given written information (Adj OR: 2.7, 95% CI 1.8–4.0); to be referred to stop smoking programs (Adj OR: 6.1, 95% CI 3.1–11.7); and to have discussed smoking cessation at more than one visit (Adj OR: 1.5, 95% CI 1.0–2.2). While the majority of women in both surveys were asked about smoking in early pregnancy, about half of those smoking did not receive advice on how to stop or cut down; were not given written information; were not told about/referred to stop smoking programs and were not asked again about smoking at subsequent visits. The significant shift in women's reports of receiving smoking cessation advice and support between the two surveys occurred predominantly at public hospitals where women received all or some antenatal care.

Smoking cessation guidelines in Victorian public hospitals have increased the extent to which pregnant women receive advice and support to stop or reduce smoking. However, half of smokers did not receive the full complement of advice and support according to state guidelines, with marked variability according to where and from whom women received antenatal care. Further efforts are needed to implement smoking cessation advice and support in clinical practice.

Induction of labor, an increasingly common intervention, is often preceded by the application of an agent to “prime” or “ripen” the cervix. We conducted a randomized controlled trial to compare clinical, economic, and psychosocial outcomes of inpatient and outpatient cervical priming before induction of labor. In this paper we present the psychosocial outcomes.

Women participating in a randomized controlled trial in two Australian metropolitan teaching hospitals completed questionnaires to measure anxiety and depression at enrollment, and to examine satisfaction, experiences, depression, and infant feeding 7 weeks after giving birth. Data analysis was by intention to treat and by having received the intervention as intended (approximately 50% in each group).

Of 1,004 eligible women, 85 percent consented (n = 407, outpatient; n = 414 inpatient). No statistically significant or clinically relevant differences were found in immediate anxiety, depression, or infant feeding. Small, statistically significant differences favoring outpatient priming were found in seven of the nine subscales in the 7-week postpartum questionnaire. The direction of the effect was maintained, mostly with a larger effect size in women who received the intervention.

Women allocated to outpatient priming were more satisfied with their priming experience than women allocated to inpatient priming. Being informed that they could go home after cervical priming did not increase women's anxiety.

Poor outcomes after childbirth are associated with physical ill health and with an absence of a positive sense of well-being. Postnatally poor physical health is thought to be influenced by the care received, the nature of the birth, and associated complications. The aim of this study was to estimate the effects of a range of clinical and other factors on positive outcome and well-being 3 months after childbirth.

This study used data on more than 5,000 women from a 2010 National Maternity Survey about their experiences of maternity care, and health and well-being 3 months after childbirth. Positive outcome was defined as women reporting no problems and feeling “very well” at the time of the survey.

In the univariate analysis, several variables were significantly associated with positive outcome, including sociodemographic, antenatal, intrapartum, and postnatal factors. In the final logistic regression model, young mothers, those without physical disability and those with no or few antenatal or early postnatal problems, were most likely to have positive outcomes. Other significant factors included a positive initial reaction to the pregnancy, not reporting antenatal depression, fewer worries about the labor and birth, and access to information about choices for care.

This study shows how positive outcomes for women after childbirth may be influenced by health, social, and care factors. It is important for caregivers to bear these factors in mind so that extra support may be made available to those women who are likely to be susceptible to poor outcome. (BIRTH 40:1 March 2013)

Although management of twin deliveries has been a topic of discussion for decades, a consensus on how to deliver twins is lacking. The objective of this study was to examine short-term neonatal outcome of the second twin delivered by cesarean section after vaginal delivery of the first-born twin (combined delivery) and to identify predictors of combined delivery.

This study was a 3-year, population-based, retrospective cohort investigation of 1,254 twin births in Denmark. The twin births were divided into three groups: vaginal deliveries, planned cesarean deliveries, and combined deliveries. Data were extracted from medical records, a fetal medicine software program (Astraia), and the National Birth Registry. Short-term poor neonatal outcome was measured as a 5-minute Apgar score ≤ 7, umbilical cord pH ≤ 7.10, and admission to neonatal intensive care unit for more than 3 days.

Vertex-nonvertex fetal presentations were more prevalent in combined deliveries than vaginal deliveries (OR 4.4, 2.5–7.8). Nonvertex second twins born by combined delivery had a higher risk of Apgar score ≤ 7 and umbilical cord pH ≤ 7.10 compared with vaginal delivery, unadjusted OR 6.2 (2.1–18), and unadjusted OR 3.9 (1.6–9.5). Prenatal ultrasound scans were evaluated in combined deliveries, of which 48 percent were vertex-vertex at the last ultrasound scan in pregnancy (mean gestational age 34 + 0) and 37 percent were vertex-vertex at birth.

Vertex-nonvertex presenting twins have an increased risk of combined delivery. Combined deliveries are associated with increased neonatal morbidity for the second twin. (BIRTH 40:1 March 2013)

Intimate partner violence is a major public health problem. It occurs commonly in pregnancy, resulting in adverse events for women and their fetus or children. The objective of this study was to examine the association between intimate partner violence and very preterm birth.

This population-based, case-control study was conducted in Victoria, Australia, from 2002 to 2004. Interviews were conducted with 603 women who had a singleton very preterm birth (20–31 weeks' gestation), 770 women who had a singleton term birth (37 or more completed weeks' gestation), 139 women who had a very preterm twin birth, and 214 women who had a term twin birth. Intimate partner violence was measured using the Composite Abuse Scale, and questions were also asked about fear of partners and violence from others.

Prevalence of intimate partner violence in the past 12 months was 14.9 percent in singleton case women, 11.7 percent in singleton control women, 9.5 percent in twin case women, and 14.7 percent in twin control women. Fear of a previous partner and reporting similar violence experience with someone else were more likely in singleton births (AOR = 1.36; 95% CI 1.03, 1.79) and (AOR = 1.44; 95% CI 1.12, 1.86), respectively. No differences between twin case women and twin control women were observed. When the precipitating cause of very preterm birth was investigated, antepartum hemorrhage was significantly associated with intimate partner violence and all its subscales.

The heterogeneity of causes of very preterm birth may explain the lack of association found with intimate partner violence in pregnancy. Pregnant women have a significant risk of intimate partner violence, which should be a serious concern for all care providers. (BIRTH 40:1 March 2013)

Infant formula is marketed by health professionals and directly to consumers. Formula marketing has been shown to reduce breastfeeding, but the relation with switching formulas has not been studied. Willingness to switch formula can enable families to spend less on formula.

Data are from the Infant Feeding Practices Study II, a United States national longitudinal study. Mothers were asked about media exposure to formula information during pregnancy, receiving formula samples or coupons at hospital discharge, reasons for their formula choice at infant age 1 month, and formula switching at infant ages 2, 5, 7, and 9 months. Analysis included 1,700 mothers who fed formula at infant age 1 month; it used logistic regression and longitudinal data analysis methods to evaluate the association between marketing and formula choice and switching.

Most mothers were exposed to both types of formula marketing. Mothers who received a sample of formula from the hospital at birth were more likely to use the hospital formula 1 month later. Mothers who chose formula at 1 month because their doctor recommended it were less likely to switch formula than those who chose in response to direct-to-consumer marketing. Mothers who chose a formula because it was used in the hospital were less likely to switch if they had not been exposed to Internet web-based formula information when pregnant or if they received a formula sample in the mail.

Marketing formula through health professionals may decrease mothers' willingness to switch formula. (BIRTH 40:1 March 2013)

New fathers may be as vulnerable as new mothers to depression, and their symptoms also can affect the mother and child. The purpose of this study was to investigate depressive symptoms and associations with paternal age, sociodemographic characteristics, and antenatal psychological well-being in Swedish first-time fathers.

Depressive symptoms, defined as scores of 11 or greater on the Edinburgh Postnatal Depression Scale, were investigated in 812 men 3 months after their first baby was born. The study sample included primarily Swedish-born, married or cohabiting men who participated in antenatal education classes during the partner's pregnancy.

In all, 10.3 percent of study men suffered from depressive symptoms. Compared with fathers aged 29–33 years (sample mean age ± 2 yr), the younger fathers had an increased risk for depressive symptoms (OR 2.55; 95% CI 1.50–4.35). Low educational level, low income, poor partner relationship quality, and financial worry increased the risk for depressive symptoms, but these factors could not explain the increased risk among the young.

New fathers in their twenties seem to have an increased risk for depressive symptoms that cannot be explained solely by socioeconomic factors. Support should be offered to new fathers with particular focus on the young. (BIRTH 40:1 March 2013)

Severing the umbilical cord at birth is likely the oldest intervention, the timing of which remains fraught with controversy. Emerging evidence suggests benefit in delaying cord clamping for both term and preterm infants. The objective of this study was to investigate actual cord clamping time and circumstances at a large tertiary care center in Canada.

We used a stopwatch to time the interval from the time the infant was born as far as the umbilicus until the time that the umbilical cord was clamped before cutting. We reported on timing of the umbilical cord clamping overall and by practitioner group (obstetrician, midwife, and family practitioner).

A total of 98 women and their practitioners consented to be observed at the British Columbia Women's Hospital and Health Center, Vancouver, Canada. More than one-half (56.2%) of all infants had their umbilical cord clamped within 15 seconds. The median (5th, 95th percentile) clamping time in seconds for the full sample was 12 (4, 402) with practitioner subgroups as follows: obstetricians (12 [3, 107]), family physicians (19 [6, 325]), and midwives (81 [6, undefined]). The median clamping time was likely to be longer when the birth occurred spontaneously, no umbilical cord blood was collected, and no birth or neonatal complications occurred.

In our sample taken in 2006 to 2007, most infants had umbilical cords clamped immediately after the birth, with more than one-half clamped within 15 seconds of birth. Since the time of our study, delayed umbilical cord clamping for the healthy term newborn has become a part of recommended management of third stage of labor and resuscitation guidelines. It would be informative to repeat a study like this one to determine compliance with the current standards of care. (BIRTH 40:1 March 2013)

A high infant birthweight is associated with future risk of a range of adverse health consequences. This study sought to determine whether maternal “junk food” diet (energy-dense, nutrient-poor) predicts high birthweight in first-time mothers in southwest Sydney, Australia.

A community-based longitudinal study was conducted with a total of 368 first-time mothers and their newborns. Information about maternal “junk food” diet, including high consumption of soft drink, fast food, and/or processed meat and chips, and self-reported prepregnant weight and height of first-time mothers was collected by a face-to-face interview with mothers between 24 and 34 weeks of pregnancy. Birthweight was measured in hospital and reported by the mother, together with gestational age, when the baby was 6 months old. Logistic regression modeling was used to determine the factors predicting birthweight greater than 4.0 kg.

Eleven percent of newborns weighed more than 4.0 kg (12% boys, 9% girls). Compared with mothers who had a “junk food” diet, mothers who had not consumed “junk food” during pregnancy were significantly less likely to have a newborn weighing more than 4.0 kg, with adjusted odds ratio (AOR) 0.36, 95 percent confidence interval (CI) 0.14–0.91, p = 0.03, after adjusting for maternal weight status and gestational age. Compared with healthy and underweight mothers, overweight or obese mothers were more likely to have a newborn weighing more than 4.0 kg (AOR overweight 3.03, 95% CI 1.35–6.80; obese 3.79, 95% CI 1.41–10.25) after allowing for “junk food” diet and gestational age.

Maternal “junk food” diet during pregnancy and prepregnant overweight and obesity were independent predictors of high infant birthweight. Early childhood obesity interventions should consider addressing these factors. (BIRTH 40:1 March 2013)

Advances in genetic technologies have resulted in the diagnosis during pregnancy of increasing numbers of fetal abnormalities. A few published personal commentaries have indicated that health professionals' interactions with couples at risk of a fetal abnormality can be emotionally and ethically challenging, highlighting the need for empirical research in this area. This study sought to explore whether working in the fetal medicine setting has an effect on health professionals and to ascertain any supports used to manage these effects.

In-depth interviews were conducted with 40 medical and allied health professionals working in fetal medicine settings in Melbourne, Australia. Qualitative analysis of the interview data was performed using thematic analysis.

Participants discussed at length the emotional impact of working with patients who were experiencing adverse pregnancy outcomes. All participants reported that working in fetal medicine had an impact on their daily lives, and many spoke about dreaming about or losing sleep over patient outcomes. Participants described working in this setting as being particularly difficult when they were pregnant themselves. Most spoke about feeling largely unsupported in their work and felt that these effects resulted in burnout and staff turnover.

This study explored several work force concerns in fetal medicine. Health professionals working with couples at risk of a fetal abnormality are vulnerable to the phenomena of compassion fatigue and burnout. The need for formal support and self-care management is suggested. (BIRTH 40:1 March 2013)

The barriers that face fathers during childbirth are an understudied phenomenon. The objective of our study was to explore Syrian parents' perceptions of barriers to paternal presence and contribution during childbirth.

A descriptive phenomenological qualitative approach based on Colaizzi's method was used with a purposive sample of 23 mothers and 14 fathers recruited from a major public maternity hospital in Syria.

In our study, four themes on barriers to paternal presence and contribution during childbirth were found: 1) sociocultural influences and rigidity; 2) being unprepared; 3) unsupportive policies and attitudes; and 4) unfavorable reactions and circumstances.

Common and current sociocultural norms in Syria do not encourage fathers to be present or contribute during childbirth. Therefore, establishing culturally sensitive supportive policies and practices is a vital step toward overcoming these barriers. (BIRTH 40:1 March 2013)