Why do women stop breastfeeding? Findings from the Pregnancy Risk Assessment and Monitoring System

Identification and Management of Ankyloglossia and Its Effect on Breastfeeding in Infants: Clinical Report

Ankyloglossia refers to a congenitally tight lingual frenulum that limits the motion of the tongue. Whether the release of a tight lingual frenulum in neonates improves breastfeeding is not clear. Because many of the symptoms of ankyloglossia overlap those of other breastfeeding difficulties, a team partnership is necessary.

Maternal Cannabis Use during Lactation and Potential Effects on Human Milk Composition and Production: A Narrative Review

Cannabis use has increased sharply in the last 20 y among adults, including reproductive-aged women. Its recent widespread legalization is associated with a decrease in risk perception of cannabis use during breastfeeding. However, the effect of cannabis use (if any) on milk production and milk composition is not known. This narrative review summarizes current knowledge related to maternal cannabis use during breastfeeding and provides an overview of possible pathways whereby cannabis might affect milk composition and production. Several studies have demonstrated that cannabinoids and their metabolites are detectable in human milk produced by mothers who use cannabis. Due to their physicochemical properties, cannabinoids are stored in adipose tissue, can easily reach the mammary gland, and can be secreted in milk. Moreover, cannabinoid receptors are present in adipocytes and mammary epithelial cells. The activation of these receptors directly modulates fatty acid metabolism, potentially causing changes in milk fatty acid profiles. Additionally, the endocannabinoid system is intimately connected to the endocrine system. As such, it is probable that interactions of exogenous cannabinoids with the endocannabinoid system might modify release of critical hormones (e.g., prolactin and dopamine) that regulate milk production and secretion. Nonetheless, few studies have investigated effects of cannabis use (including on milk production and composition) in lactating women. Additional research utilizing robust methodologies are needed to elucidate whether and how cannabis use affects human milk production and composition.

Obesity and Prenatal Intention as Predictors of Meeting Breastfeeding Recommendations in an Urban Birth Cohort

Background and Objectives: Few U.S. women meet the public health recommendations to exclusively breastfeed for 6 months and continue breastfeeding for at least 1-2 years. We compared prenatally collected demographic, health, and breastfeeding support/intention variables to examine how these factors intersect to predict meeting breastfeeding recommendations. Methods: PREVAIL, a CDC-funded birth cohort in Cincinnati, OH, was approved by the IRB at CDC, Cincinnati Children's Hospital, and the hospitals where enrollment (third trimester, 2017-2018) occurred. The prenatal questionnaire captured sociodemographics, pre-pregnancy weight and height, breastfeeding environment, and breastfeeding intention, while health factors were obtained from obstetrical records. Body mass index (BMI) (kg/m2) was categorized as healthy (18.5-24.9), overweight (25-29.9), obesity 1 (30-34.9), and obesity 2+ (≥35). Mothers self-reported date of exclusive and any breastfeeding cessation through quarterly postnatal questionnaires. Random forest was used for variable selection, cross-validated in multivariable logistic models. Results: Analysis included n = 237 mothers with BMI ≥18.5. Random forest identified BMI category, prenatal intention, and insurance type as the most important predictors of meeting breastfeeding recommendations. The resulting logistic models explained >40% of the variance with an area under the curve of ≥0.89 for both recommendations. More than 73% of the risk of not meeting breastfeeding recommendations was attributable to having an elevated BMI or lacking strong breastfeeding intention. Conclusions: In PREVAIL, maternal BMI and prenatal intention explained most risks of not meeting breastfeeding exclusivity and duration recommendations. Our findings suggest efforts to improve breastfeeding exclusivity and duration should focus on strengthening prenatal breastfeeding intention and identifying effective interventions for supporting breastfeeding among mothers with higher BMI.

Factors Associated with Provider Practices Related to Infant Feeding in Primary Care Settings: Results from a Pilot Survey

In 2020, only 25.6% of dyads in the US were exclusively breastfeeding at six months. Previous research has shown that breastfeeding continuation improves when patients receive both prenatal and postpartum support. Additionally, breastfeeding self-efficacy can be directly impacted by interactions with primary healthcare providers. To facilitate improved lactation support and positive interactions with providers related to infant feeding in the primary care setting, a 49-question survey was utilized to conduct a retrospective, cross-sectional study. Using multiple regression analysis, the researchers tested a model to determine if certain factors could predict patients receiving lactation education in the primary care setting. The full model was statistically significant and accounts for 81.8% of the variance (R2 = 0.818, F (7, 21) = 9.015, p < 0.001, CI = 0.728 to 0.910). Variables that contributed significantly to the model included provider age, provider years of experience in maternal-child health, population density of the practice, and average provider preparedness and comfort with lactation support and medical management. As the only modifiable predictor significantly contributing to the model, future research is necessary to develop educational interventions to improve provider preparedness and comfort with lactation support and medical management. Such interventions may significantly improve the frequency of lactation education in primary care settings.

Postpartum Depressive Symptoms: An Analysis of Social Determinants Using the Pregnancy Risk Assessment Monitoring System

Background

Approximately one in every eight mothers experience symptoms of postpartum depression (PPD) in the United States.1 Existing literature lacks an in-depth exploration of the social context from which symptoms of PPD arise. The objectives of this study were to (1) determine the prevalence of postpartum depressive symptoms (PDS) among new mothers and to explore relationships between selected social determinants of health (SDOH) and the likelihood of experiencing PDS.

Materials and Methods

Data were from the Pregnancy Risk Assessment Monitoring System (PRAMS) 2016 and 2017 Questionnaires. Measured SDOH included socioeconomic status, social network support, psychosocial stress, and availability of resources to meet basic daily needs. Outcome measurement included a combination of two symptom indicator questions. Univariate analyses yielded weighted frequencies of descriptive statistics according to PDS status, and bivariate and multivariate logistic regression analyses yielded odds of reporting PDS.

Results

The prevalence of self-reported PDS was 3.5%. Among mothers with PDS, most (54%) lived at or below the federal poverty guideline. Mothers who experienced psychosocial stress (e.g., intimate partner violence) during pregnancy had the highest likelihood of reporting PDS (adjusted odds ratio [aOR] = 3.60; confidence interval [95% CI], 2.12-6.12). Mothers who considered their most recent pregnancy unintended or mistimed were more likely to report PDS (aOR = 1.36; 95% CI, 1.01-1.82), (aOR = 1.65; 95% CI, 1.19-2.27), respectively.

Conclusion

Results demonstrate that several social and psychosocial risk factors significantly impact the likelihood of experiencing PDS. The risk of PDS was particularly significant among lower socioeconomic status mothers, especially those with inadequate social network support. Public health efforts to mitigate potentially harmful social factors should focus on transforming public policies and social programs and increasing screening opportunities.

Predicting intention and maintenance of breastfeeding up to 2-years after birth in primiparous and multiparous women

OBJECTIVES

Breastfeeding up to 2-years has been associated with short and long-term health benefits for both newborns and mothers. However, few women breastfeed up to 2-years after birth. This study extends previous research on the theory of planned behaviour (TPB) examining the predictors of intention and maintenance of breastfeeding up to 2-years in both primiparous and multiparous women.

DESIGN

155 pregnant women participated in this longitudinal study.

METHODS

Expectant mothers completed a questionnaire and then 2-years after the child's birth were asked to report breastfeeding behaviour. Interactions among parity and TPB constructs were examined.

RESULTS

Attitudes, descriptive and injunctive norms, and perceived behavioural control (PBC) explained 58% of the variance in mothers' intention to breastfeed. Attitudes were the strongest predictor, followed by PBC, descriptive norms and parity. A significant interaction was found between parity and PBC, showing that PBC was only a significant predictor of intention to breastfeed at 2-years in multiparous women. Intentions predicted breastfeeding behaviour at 2-years.

CONCLUSION

Promoting intentions may be a useful way to increase breastfeeding duration to 2-years and targeting attitudes and norms may be one way to increase intentions. Further, targeting PBC may also be useful to increase intentions, but only in multiparous women.

Does the feeding method affect the quality of infant and maternal sleep? A systematic review

Breastfeeding brings many benefits to both mother and infant. Although, many women stop breastfeeding their infants too soon. The perceived association between breastfeeding and sleep may influence their decision to terminate breastfeeding. In our systematic review, we focused on mapping the relationship between infant feeding method and total sleep time (TST), number of nocturnal awakenings, awakenings after sleep onset (WASO) of mothers and infants and sleep quality of mothers. We searched four databases according to selected keywords and inclusion criteria - articles published in peer-reviewed journals between 2012 and 2022; English language; a sample consisting of mothers, infants, or both (without psychiatric and health problems); a comparison of the sleep quality of breastfed and formula-fed children or breastfeeding and formula-fed mothers. We read 260 full texts of selected articles. A total of 35 articles were included in this review. Due to significant heterogeneity, meta-analysis was not possible to accomplish. The results are processed according to narrative synthesis. Most studies agree that breastfed infants wake up more often at night. Total sleep time and time spent awake during the night (WASO) did not differ between breastfed and non-breastfed infants. We observed identical results in sleep variables among mothers. Additionally, there was no difference in maternal sleep quality. The synthesis revealed that the results may have differed due to using subjective, objective methods or the infant's age. It is important to remember that night waking is a more complex concept. Infants wake for many reasons, not just due to breastfeeding. The narrative synthesis indicated that the chosen study design, measurement method, the variables, and the infant's age could influence outcomes. In addition, other variables appeared that may affect the entire process. Therefore, we recommend that attention be paid to this in future studies.

Challenges for influencing exclusive breastfeeding practice among lactating mothers with infants aged 0-6 months in Borama District, Somaliland: A cross-sectional study

Background and Aims

Exclusive breastfeeding (EBF) has been demonstrated to have positive effects on a child's survival, growth, and development, as well as a mother's health and well-being. The authors aim to examine the barriers to EBF among lactating mothers in Borama town, Somaliland, with infants aged <6 months.

Methods

The authors collected primary data on a sample of 153 lactating mothers in Borama town, Somaliland, for this study. This study used descriptive statistics with frequencies and percentages. Moreover, the multivariable logistic regression model is applied to analyze the data.

Results

Findings revealed that about 28.1% of mothers pointed out that breastfeeding should be the baby's first meal. Surprisingly, 69.3% of the women were unaware that 6 months of EBF may keep a baby healthy. Results depict that EBF was influenced by lack of education (AOR: 0.013; 95% Cl: 0.001, 0.124), marital status (AOR: 0.40; 95% Cl: 0.004, 0.427), employed mothers (AOR: 0.070; 95% Cl: 0.043, 0.94), mothers perception of milk quantity (AOR: 0.033; 95% Cl: 0.001, 0.124), and perceived rejection to breastfeeding by the baby (AOR: 0.043; 95% Cl: 0.021, 0.134). Mothers who had no formal education or a primary level of education have less chance of practicing EBF than higher-educated mothers.

Conclusions

It is observed that the educational level of mothers, marital status (widow), employed mother, perceived insufficient milk, and the perceived rejection of breastfeeding by the baby are the major challenges for enhancing the EBF practice. The authors suggested that the Ministry of Health examine how effectively breastfeeding counseling is implemented in medical facilities. Moreover, the authors suggest that the government, nongovernmental organizations (NGOs), and community associations collaboratively plan and carry out suitable programs focusing on vulnerable groups.

Perinatal Smoking and E-cigarette Use and Their Relationship with Breastfeeding: PRAMS 2015-2020

Introduction: Electronic cigarette (e-cigarette) use poses concerns among women of child-bearing age. We examined prevalence of breastfeeding among the U.S. women and characteristics associated with exclusive use of cigarettes, e-cigarettes, or both products. Materials and Methods: Our study is based on pooled cross-sectional data from 2015-2020 Pregnancy Risk Assessment Monitoring System. Two outcomes were breastfeeding initiation and breastfeeding duration for over 6 months, as recommended by the American Academy of Pediatrics (AAP). Binary logistic regressions were used to examine associations between each outcome and type of tobacco products unadjusted and adjusted for potential confounders, with post hoc estimation of average adjusted predictions, marginal effects, and contrasts of margins in Stata. Results: Adjusted prevalence of breastfeeding initiation was significantly higher in women who used e-cigarettes (86.15%) than conventional cigarettes (72.16%) or both products (79.54%). Similarly, a significantly higher percentage of women who used e-cigarettes continued breastfeeding after 6 months (49.20%) than women who smoked conventional cigarettes (31.30%) or both products (29.83%). Among women who neither smoked nor used e-cigarettes, 85.29% initiated breastfeeding and 57.20% continued breastfeeding as recommended by the AAP. Conclusion: Likelihood of breastfeeding initiation and continuation in women using e-cigarettes was comparable to those who neither smoked nor used e-cigarettes. Future research needs to elucidate differences in breastfeeding by sociodemographic and health-related characteristics of women who smoke or use both products compared to those who use e-cigarettes. Understanding women's motivation behind use of a particular tobacco product is also important, so mothers who smoke e-cigarettes are not incorrectly perceived as safer users and excluded from tobacco cessation interventions.

Establishment of cross-cradle hold technique combined with intensive breastfeeding counselling positively impacts the weight gain rate in early infancy

A quasiexperimental field study was undertaken in 576 exclusively breastfed (EBF) infants from 0 to 14 weeks in Gujarat, India to assess the effect of the use of appropriate breastfeeding techniques on daily weight gain rate and on reducing the underweight rate in early infancy. The interventions were delivered through the existing health system and focused primarily on counselling pregnant women during antenatal and post-natal sessions for ensuring 'effective breastfeeding' by adoption of the technique of 'cross cradle hold', appropriate breast attachment, emptying of one breast before shifting to the other along with conducting regular monitoring of infant's weight. The intervention care group (ICG) of 300 EBF infants were compared with 276 EBF infants in the control standard care group (SCG). The findings revealed that median weight gain per day between 0 and 14 weeks was significantly higher (p = 0.000) in ICG (32.7 g) as compared with SCG (28.05 g). The median weight-for-age Z at 14 weeks of age was also significantly higher in ICG compared with SCG (p = 0.000). Underweight prevalence was three times lower in ICG (5.3%) compared with SCG (16.7%) at 14 weeks of age. Infants in the ICG were noted to be 2.65-fold more likely to achieve a weight gain of 30 g or more per day compared with infants in SCG. Nutrition interventions, therefore, must aim not only on mere promotion of EBF for up to 6 months but stress on ensuring EBF is 'effective' for optimum transfer of breastmilk through adoption of appropriate techniques, including cross-cradle hold, by mothers.

Breastfeeding: Knowledge, Perception, And Intention to Practice Among Female Students of Tertiary Institutions in Ekiti, Southwest Nigeria

INTRODUCTION

Breastfeeding is a public health practice that is critical for the survival of infants and young children. This study aimed at determining the knowledge, attitude, and future intention to breastfeed among female undergraduates in tertiary institutions in Ekiti State, Southwest Nigeria.Methodology: A prospective cross-sectional study was conducted among 1312 female students of the tertiary institutions in Ekiti State. By convenience sampling, female students were invited to participate in the study after giving verbal consent and those studying medical, nursing, and other courses allied to medicine were excluded. Internal consistency of the data obtained from this research instrument was determined using Cronbach's coefficient Alpha with a reliability value of 0.82. Data analysis was conducted using SPSS version 25. Descriptive as well as inferential statistics were computed. Results were summarized as frequencies and percentages. The differences in knowledge, attitude, and intention to practice breastfeeding as well as other responses among the participants were compared among age groups, faculties and the sources of information using Chi-square test.

RESULT

Although 93% of the respondents agreed that breast milk is important for the development of the infant's brain thereby demonstrating good knowledge; 51.6% of the respondents demonstrated poor perception to breastfeeding believing breastfeeding makes the breast to sag while only 34% of the respondents indicated their intention to breastfeed their future babies.

CONCLUSION

The intention to breastfeed among our study participants was poor. This study revealed the need to increase awareness about breastfeeding and its benefits among this huge population of future mothers.

Infant feeding practices and autism spectrum disorder in US children aged 2-5 years: the national survey of children's health (NSCH) 2016-2020

OBJECTIVE

To investigate the relationship between infant feeding practices and autism spectrum disorder (ASD) among children aged 2-5 years in the United States (US).

METHODS

Data from the 2016-2020 National Survey of Children's Health, a nationally representative cross-sectional survey, were utilized for this study. Questionnaires were administered to parents of children aged 2-5 years to gather information on ASD diagnosis, infant feeding practices, and demographic factors (e.g., child sex, ethnic group, and maternal age at birth). Logistic regression with sample weights was employed to assess the association between infant feeding practices and ASD, while controlling for demographic variables. Polynomial regression models were used to examine trends in exclusive breastfeeding and ever breastfeeding rates among children with and without ASD.

RESULTS

A total of 35,050 children aged 2-5 years were analyzed, including 616 diagnosed with ASD, after excluding participants with missing information on breastfeeding and ASD diagnosis. Of these children with ASD, 76.6% (n = 472) had a breastfeeding history, with 67.5% (n = 416) engaged in partial breastfeeding and 9.1% (n = 56) exclusively breastfed. Adjusted odds ratios for each additional month of breastfeeding compared to never being breastfed were 0.98 (95% CI, 0.96-1.01). The adjusted odds ratios for breastfeeding durations of > 0-6 months, > 6-12 months, > 12-24 months, and > 24 months were 0.81 (95% CI, 0.50-1.31), 0.65 (95% CI, 0.36-1.18), 0.81 (95% CI, 0.44-1.49), and 0.48 (95% CI, 0.23-1.01), respectively. Compared to children who were never breastfed, the adjusted odds ratio for children who were ever breastfed was 0.74 (95% CI, 0.47-1.18). Among children with ASD, the proportion of ever breastfeeding declined from 82.0% in 2017 to 64.3% in 2020, while exclusive breastfeeding decreased from 12.0% in 2016 to 4.2% in 2020.

CONCLUSIONS AND RELEVANCE

Although no significant association was found between infant feeding practices and ASD among US children aged 2-5 years, the rates of breastfeeding, particularly exclusive breastfeeding, were suboptimal among children with ASD. This highlights the need for specific policies and practices to promote and support breastfeeding among parents of children with ASD or those at high risk of having a child with ASD.

Teaching antenatal hand expression: a feasibility study in an inner urban U.S. hospital

BACKGROUND

Many women have low confidence in breastfeeding and have concerns regarding low milk volume or discomfort with breastfeeding. Antenatal hand expression may be an opportunity to help women feel more comfortable with breastfeeding and help promote exclusive breastfeeding. A study at a hospital in Philadelphia, Pennsylvania, U.S. assessed the feasibility of teaching antenatal hand expression at 39 weeks among socioeconomically disadvantaged populations, overall participant satisfaction and adoption of hand expression and breastfeeding.

METHODS

From March 2020 to June 2021, women recruited at 34-39 weeks were taught to hand express, collect, and store colostrum. Starting from 39 weeks, participants were asked to practice hand expression 1-3 times / day until delivery, log their experiences, and store colostrum expressed. Women were contacted to encourage continued hand expression and answer any questions. Postpartum, a survey assessed satisfaction with hand expression and issues encountered. The survey also inquired about breastfeeding plans and barriers, and whether women were exclusively breastfeeding (defined as infants who received only breastmilk from the time of birth). Chart review of postpartum or well-baby visit notes determined whether women continued breastfeeding.

RESULTS

Of the 29 participants, 72% (21/29) reported hand expressing at home, and no women reported contractions when hand expressing. Participants rated mean satisfaction of 8.1/10 (SD = 1.62) with antenatal hand expression, mean satisfaction of 9.4/10 (SD = 0.90) toward hand expression education, mean likelihood of 9.4/10 (SD = 1.24) recommending hand expression to others, and a mean score of 8.1/10 (SD = 1.69) on how helpful hand expression was in breastfeeding initiation. 90% (26/29) of women initiated breastfeeding after birth and 72% (21/29) exclusively breastfed on discharge, but only 11/29 (38%) continued exclusively breastfeeding when re-assessed 4-6 weeks postpartum. Barriers included maternal discomfort, low milk supply, and maternal or infant illness.

CONCLUSIONS

This study suggests that women in an urban setting would be willing to practice antenatal hand expression. A larger and adequately powered study could be feasible to determine associations between antenatal hand expression and breastfeeding rates and confidence.

Fathers, Breastfeeding, and Infant Sleep Practices: Findings From a State-Representative Survey

OBJECTIVES

To assess infant breastfeeding initiation and any breastfeeding at 8 weeks and safe sleep practices (back sleep position, approved sleep surface, and no soft objects or loose bedding ["soft bedding"]) by select paternal characteristics among a state-representative sample of fathers with new infants.

METHODS

Pregnancy Risk Assessment Monitoring System (PRAMS) for Dads, a novel population-based cross-sectional study, surveyed fathers in Georgia 2-6 months after their infant's birth. Fathers were eligible if the infant's mother was sampled for maternal PRAMS from October 2018 to July 2019.

RESULTS

Of 250 respondents, 86.1% reported their infants ever breastfed and 63.4% reported breastfeeding at 8 weeks. Initiation and breastfeeding at 8 weeks were more likely to be reported by fathers who reported wanting their infant's mother to breastfeed than those who did not want her to breastfeed or had no opinion (adjusted prevalence ratio [aPR] = 1.39; 95% confidence interval [CI], 1.15-1.68; aPR = 2.33; 95% CI, 1.59-3.42, respectively) and fathers who were college graduates than those with ≤high school diploma (aPR = 1.25; 95% CI, 1.06-1.46; aPR = 1.44; 95% CI, 1.08-1.91, respectively). Although about four-fifths (81.1%) of fathers reported usually placing their infants to sleep on their back, fewer fathers report avoiding soft bedding (44.1%) or using an approved sleep surface (31.9%). Non-Hispanic Black fathers were less likely to report back sleep position (aPR = 0.70; 95% CI, 0.54-0.90) and no soft bedding (aPR = 0.52; 95% CI, 0.30-0.89) than non-Hispanic white fathers.

CONCLUSIONS

Fathers reported suboptimal infant breastfeeding rates and safe sleep practices overall and by paternal characteristics, suggesting opportunities to include fathers in promotion of breastfeeding and infant safe sleep.

Rapid discrimination of the identity of infant formula by triple-channel models

Infant formula is related to children's life and health. However, the existing identification methods for infant formula are time-consuming, costly and prone to environmental pollution. Therefore, a simple, efficient and less polluting identification method for infant formula is urgently needed. The aim of this study was to distinguish between goat and cow infant formula using HS-SPME-GC-MS and E-nose combined with triple-channel models. The results indicated that the main difference of them attributed to thirteen volatile compounds and three sensor variables. Based on this, the linear discriminant and partial least squares discriminant analyses were conducted, and a multilayer perceptron neural network model was constructed to identify the commercial samples. There was a high percentage of correct classifications (>90%) in samples. Together, our work demonstrated that the volatile compounds of infant formula combined with chemometric analysis were effective and rapid for detecting two infant formulas.

The MPRINT Hub Data, Model, Knowledge and Research Coordination Center: Bridging the gap in maternal-pediatric therapeutics research through data integration and pharmacometrics

Maternal and pediatric populations have historically been considered "therapeutic orphans" due to their limited inclusion in clinical trials. Physiologic changes during pregnancy and lactation and growth and maturation of children alter pharmacokinetics (PK) and pharmacodynamics (PD) of drugs. Precision therapy in these populations requires knowledge of these effects. Efforts to enhance maternal and pediatric participation in clinical studies have increased over the past few decades. However, studies supporting precision therapeutics in these populations are often small and, in isolation, may have limited impact. Integration of data from various studies, for example through physiologically based pharmacokinetic/pharmacodynamic (PBPK/PD) modeling or bioinformatics approaches, can augment the value of data from these studies, and help identify gaps in understanding. To catalyze research in maternal and pediatric precision therapeutics, the Obstetric and Pediatric Pharmacology and Therapeutics Branch of the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) established the Maternal and Pediatric Precision in Therapeutics (MPRINT) Hub. Herein, we provide an overview of the status of maternal-pediatric therapeutics research and introduce the Indiana University-Ohio State University MPRINT Hub Data, Model, Knowledge and Research Coordination Center (DMKRCC), which aims to facilitate research in maternal and pediatric precision therapeutics through the integration and assessment of existing knowledge, supporting pharmacometrics and clinical trials design, development of new real-world evidence resources, educational initiatives, and building collaborations among public and private partners, including other NICHD-funded networks. By fostering use of existing data and resources, the DMKRCC will identify critical gaps in knowledge and support efforts to overcome these gaps to enhance maternal-pediatric precision therapeutics.

Challenges with Breastfeeding: Pain, Nipple Trauma, and Perceived Insufficient Milk Supply

BACKGROUND AND SIGNIFICANCE

Breastfeeding problems are common; however, health care providers vary widely in their ability to address them effectively.

PURPOSE

The purpose of this study was to identify the relative frequencies of common breastfeeding challenges and their associations with maternal well-being.

STUDY DESIGN AND METHODS

Women completed an online survey in which they described breastfeeding problems. Factor analysis was used to identify problems that co-occurred frequently, as well as the problems most strongly associated with maternal distress, maternal perceptions of greater severity, and postpartum depression or postpartum anxiety.

RESULTS

There were 535 responses to the online survey; of these, 457 answered the question about the nature of their breastfeeding difficulties. Pain with breastfeeding was the most common breastfeeding problem. Difficulties with milk supply and milk intake were most strongly associated with heightened maternal distress and perceptions of severity.

CLINICAL IMPLICATIONS

Coordinated care for breastfeeding dyads, in which providers acknowledge the complex and reciprocal nature of many breastfeeding problems, has the potential to improve maternal satisfaction with breastfeeding as well as breastfeeding metrics.

Latinas and Maternal and Child Health: Research, Policy, and Representation

Over the last 50 years, the Latino population in the US has grown and changed. Latinos are the nation's largest minority group and among this group, there is incredible diversity. Much of Latino health research and outcomes have been treated interchangeably with immigrant health, but as the US Latino population evolves so should the focus of Latino health research. We contend that as maternal and child health (MCH) outcomes are an utmost important indicator of a country's health, and as Latinos make up 18% of the US's population, it is imperative that we move past dated research frameworks to a more nuanced understanding of the health of Latina women and children. We summarize how acculturation has been used to describe differences in MCH outcomes, discuss how the umbrella term "Latino" masks subgroups differences, explore Afro-Latinidad in MCH, examine the effects of the sociopolitical climate on the health of families, and demonstrate the limited representation of Latinos in MCH research. We conclude that a deeper understanding of Latino health is necessary to achieve health equity for Latina women and their children.

Per- and Polyfluoroalkyl Substances and Breastfeeding as a Vulnerable Function: A Systematic Review of Epidemiological Studies

Milk formation in the breast during breastfeeding is a complex hormonally regulated process, potentially sensitive to the effects of endocrine-disrupting chemical exposures. The environmental chemicals, per- and polyfluoroalkyl substances (PFAS) are known endocrine disruptors. PFAS exposure have been associated with insufficient mammary gland development in mice and reduced breastfeeding duration in humans. The aim of this review was to gather the epidemiological evidence on the association between PFAS exposure and breastfeeding duration. Using PubMed and Embase, we performed a systematic literature search (on 23 January 2023) to identify epidemiological studies examining the association between maternal PFAS exposure and breastfeeding duration. Animal studies, reviews, and non-English studies were excluded. The risk of bias was assessed using the risk of bias in non-randomized studies of exposures tool. Estimates describing the association between PFAS exposure and the duration of breastfeeding were identified, and the data were synthesized separately for each type of PFAS and for the duration of exclusive and total breastfeeding. Six studies with between 336 and 2374 participants each were identified. PFAS exposure was assessed in serum samples (five studies) or based on residential address (one study). Five out of six studies found shorter total duration of breastfeeding with higher PFAS exposure. The most consistent associations were seen for perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), and perfluorononanoic acid (PFNA). The finding of a potential causal association between PFAS exposure and breastfeeding duration is in agreement with findings from experimental studies.

Effectiveness of Lactation Cookies on Human Milk Production Rates: A Randomized Controlled Trial

BACKGROUND

Expensive lactation cookies (LC) are marketed as milk-boosters; however, their effectiveness remains unknown.

OBJECTIVE

To evaluate the effectiveness of 1-month daily intake of LC on changes in objective and subjective milk production and breastfeeding self-efficacy.

METHODS

A 1-month, randomized controlled trial among 18-45-year-old exclusively lactating parents of healthy, term, 2-month-old infants living in the United States from March to December 2021. Participants (n=176) were randomly assigned to eat daily 56.5g of either LC with "galactagogues" (oatmeal, brewer's yeast, flax seeds, and fenugreek), or conventional cookies containing similar weight, calories, and presentation, but lacking galactagogues. The primary outcome was baseline-to-1-month changes in human milk production rate (HMPR), measured with a validated milk expression protocol. Secondary outcomes included changes in perceived insufficient milk (PIM) and lactation self-efficacy scores.

RESULTS

Among 176 randomized participants (age 31.3 ±5.8 years, 71.0% self-identified as White, 15.3% Hispanic/Latine, 6.3% Black, 4.0% Asian), 90 participants (51.1%) completed endline HMPR measures and 129 (73.3%) completed secondary outcomes. Imputed models showed a mean increase in HMPR of 5.8mL/h ±15.7 in control participants and 5.5mL/h ±17.6 in the LC participants after 1 month of daily cookie intake. No significant differences were observed with adjusted linear mixed models on the multiply imputed data comparing baseline-to-endline changes in HMPR, PIM, or breastfeeding self-efficacy: mean (standard error) difference-in-differences for HMPR, -0.33 (4.97), p=0.948; PIM scores (range 5-50), -0.52 (1.83), p=0.775; and self-efficacy scores (range 14-70), 0.31 (2.23), p=0.888, respectively.

CONCLUSIONS

AND RELEVANCE: This study found no evidence for an effect of consuming LC on HMPR, PIM, or breastfeeding self-efficacy in exclusively breastfeeding parents with overall adequate perceived milk supply. Recommendations to consume LC for increasing objective or subjective milk supply may deliver false hope and unnecessary financial costs at a vulnerable time.

TRIAL REGISTRATION NUMBER

Clinical Trials NCT04805008.

After NICU discharge: Feeding and growth of low-income urban preterm infants through the first year

BACKGROUND

Little is known about preterm infant feeding and growth in the outpatient setting, and there are no standardized post-hospital discharge feeding guidelines. This study aims to describe post-neonatal intensive care unit (NICU) discharge growth trajectories of very preterm (<32 weeks gestational age (GA)) and moderately preterm (32-34 0/7 weeks GA) infants managed by community providers and to determine the association between post-discharge feeding type and growth Z-scores and z-score changes through 12 months corrected age (CA).

METHODS

This retrospective cohort study included very preterm infants (n = 104) and moderately preterm infants (n = 109) born 2010-2014 and followed in community clinics for low-income, urban families. Infant home feeding and anthropometry were abstracted from medical records. Repeated measures analysis of variance calculated adjusted growth z-scores and z-score differences between 4 and 12 months CA. Linear regression models estimated associations between 4 months CA feeding type and 12 months CA anthropometry.

RESULTS

Moderately preterm infants on nutrient-enriched vs. standard term feeds at 4 months CA had significantly lower length z-scores at NICU discharge that persisted to 12 months CA (-0.04 (0.13) vs. 0.37 (0.21), respectively, P = .03), with comparable length z-score increase for both groups between 4 and 12 months CA. Very preterm infants' 4 months CA feeding type predicted 12 month CA body mass index z-scores (β=-0.66 (-1.28, -0.04)).

CONCLUSION

Community providers may manage preterm infant post-NICU discharge feeding in the context of growth. Further research is needed to explore modifiable drivers of infant feeding and socio-environmental factors that influence preterm infant growth trajectories.

Human Milk-Derived Levels of let-7g-5p May Serve as a Diagnostic and Prognostic Marker of Low Milk Supply in Breastfeeding Women

Low milk supply (LMS) is associated with early breastfeeding cessation; however, the biological underpinnings in the mammary gland are not understood. MicroRNAs (miRNAs) are small non-coding RNAs that post-transcriptionally downregulate gene expression, and we hypothesized the profile of miRNAs secreted into milk reflects lactation performance. Longitudinal changes in milk miRNAs were measured using RNAseq in women with LMS (n = 47) and adequate milk supply (AMS; n = 123). Relationships between milk miRNAs, milk supply, breastfeeding outcomes, and infant weight gain were assessed, and interactions between milk miRNAs, maternal diet, smoking status, and BMI were determined. Women with LMS had lower milk volume (p = 0.003), were more likely to have ceased breast feeding by 24 wks (p = 0.0003) and had infants with a lower mean weight-for-length z-score (p = 0.013). Milk production was significantly associated with milk levels of miR-16-5p (R = -0.14, adj p = 0.044), miR-22-3p (R = 0.13, adj p = 0.044), and let-7g-5p (R = 0.12, adj p = 0.046). Early milk levels of let-7g-5p were significantly higher in mothers with LMS (adj p = 0.0025), displayed an interaction between lactation stage and milk supply (p < 0.001), and were negatively related to fruit intake (p = 0.015). Putative targets of let-7g-5p include genes important to hormone signaling, RNA regulation, ion transport, and the extracellular matrix, and down-regulation of two targets (PRLR and IGF2BP1/IMP1) was confirmed in mammary cells overexpressing let-7g-5p in vitro. Our data provide evidence that milk-derived miRNAs reflect lactation performance in women and warrant further investigation to assess their utility for predicting LMS risk and early breastfeeding cessation.

Chemical Effects on Breast Development, Function, and Cancer Risk: Existing Knowledge and New Opportunities

Population studies show worrisome trends towards earlier breast development, difficulty in breastfeeding, and increasing rates of breast cancer in young women. Multiple epidemiological studies have linked these outcomes with chemical exposures, and experimental studies have shown that many of these chemicals generate similar effects in rodents, often by disrupting hormonal regulation. These endocrine-disrupting chemicals (EDCs) can alter the progression of mammary gland (MG) development, impair the ability to nourish offspring via lactation, increase mammary tissue density, and increase the propensity to develop cancer. However, current toxicological approaches to measuring the effects of chemical exposures on the MG are often inadequate to detect these effects, impairing our ability to identify exposures harmful to the breast and limiting opportunities for prevention. This paper describes key adverse outcomes for the MG, including impaired lactation, altered pubertal development, altered morphology (such as increased mammographic density), and cancer. It also summarizes evidence from humans and rodent models for exposures associated with these effects. We also review current toxicological practices for evaluating MG effects, highlight limitations of current methods, summarize debates related to how effects are interpreted in risk assessment, and make recommendations to strengthen assessment approaches. Increasing the rigor of MG assessment would improve our ability to identify chemicals of concern, regulate those chemicals based on their effects, and prevent exposures and associated adverse health effects.

Innovative online care: A cross-sectional survey study of potential benefits and challenges of online lactation consultation service with paediatrician consultation

Background

Telelactation, a virtual lactation support platform, is a convenient and effective way of providing virtual breastfeeding support services and communicating proper breastfeeding techniques to new mothers to address any breastfeeding challenges and boost overall maternal breastfeeding confidence all from the comfort of their homes. This Ontario Health Insurance Plan (OHIP) covered service benefits more mothers in the remote areas where in-person LC service is not easily accessible.

Objective

The objective of this cross-sectional survey study is to explore the feasibility, potential benefits, and challenges, and level of patient satisfaction in virtual lactation consultation services along with virtual paediatrician consultation available in Ontario, Canada.

Method

Patient satisfaction was assessed using a structured online survey as a part of a cross-sectional observational study that asked questions relevant to several independent demographic variables as well as specific Likert type scale questions to gauge patient satisfaction with virtual lactation consultation.

Results

Data were analyzed from 177 survey responses (n=177), of which study revealed that 86.44% (153/177) were satisfied with the virtual lactation services they received. Patient satisfaction was found to be higher in the first-time mothers with high school or undergraduate education between the age group of 26 to 35 years living in the Greater Toronto Area (GTA). In terms of connectivity, participants from the GTA had a better experience overall compared those living outside the GTA.

Conclusion

OHIP covered telelactation with a paediatrician consultation is an innovative and feasible health care delivery platform for providing remote professional breastfeeding support to mothers of all socio-economic strata with great potential to further improve both patient experience and efficiency in patient care.

Work as an Understudied Driver of Racial Inequities in Breastfeeding

Breastfeeding inequities by race are a persistent public health problem in the United States. Inequities in occupation and working conditions likely contribute to relatively less breastfeeding among Black compared to White mothers, yet little research has addressed these interrelationships. Here, we offer a critical review of the literature and a conceptual framework to guide future research about work and racial inequities in breastfeeding. There is a strong public health case for promoting breastfeeding equity for mothers across race groups and occupation types. Existing theory suggests that employment opportunities and working conditions are a likely pathway that connects structural racism to Black-White breastfeeding inequities, in addition to other known factors. We propose a new conceptual model for studying the interrelationships among work, race, and breastfeeding outcomes.

Risk factors and prognosis of acute lactation mastitis developing into a breast abscess: A retrospective longitudinal study in China

Background

Breast abscess is developed on the basis of acute mastitis, which will cause damage to the physical and mental health of lactating women and is an important factor affecting the rate of breastfeeding. This study examined the risk factors for mastitis to develop into breast abscess, and analyzed the distribution of pathogenic bacteria, bacterial resistance, and treatment outcome.

Methods

The medical records of 316 cases of mastitis and 219 cases of breast abscess were retrospectively collected. We analyzed the bacterial distribution of mastitis and breast abscess, and compared the differences of bacterial drug resistance. Univariate analysis and binary logistic regression were used to analyze the following aspects: age, primiparity or not, history of breast surgery, body temperature, puerperium or not, onset time, located in the nipple/areolar complexe area or not, history of massage by non-professionals, staphylococcus aureus/methicillin-resistant staphylococcus aureus (MRSA) infection or not, diabetes and white blood cell count.

Results

Of the 535 patients, 203 (37.9%) were positive for staphylococcus aureus. There were 133 (65.5%) cases of methicillin-sensitive staphylococcus aureus (MSSA) and 70 (34.5%) cases of MRSA. Concerning bacterial drug resistance, a statistical analysis showed that MSSA had high resistance rate to penicillin (96.2%), ampicillin (91%), clindamycin (42.9%) and erythromycin (45.9%). MRSA had a high resistance rate to penicillin (100%), ampicillin (98.6%), oxacillin (95.7%), erythromycin (81.4%), clindamycin (80%), and amoxicillin (31.7%). Risk factors for progression of mastitis to breast abscess include a body temperature<38.5°C, a postpartum time ≥ 42 days, an onset time ≥ 2 days, lesions in the nipple/areolar complex area, a history of massage by non-medical staff and bacterial cultures for milk or pus that test positive for staphylococcus aureus or MRSA (P < 0.001).

Conclusions

The most common pathogenic bacteria of mastitis and breast abscess is staphylococcus aureus. There are many risk factors for mastitis to develop into breast abscess. We should take effective measures for its risk factors and select sensitive antibiotics according to the results of bacterial culture to reduce the formation of breast abscess.

Maintaining Breastfeeding During the Treatment of Breast Abscesses Is Not Contraindicated

Background: World Health Organization guidelines recommend maintaining breastfeeding if a woman develops breast abscess, because of benefits to her recovery and the infant's health. However, clinical staff recommend weaning to promote faster recovery from the abscess. The purpose of this study was to determine whether maintaining breastfeeding after development of a breast abscess has any influence on the resolution of the breast abscess. Methods: The records of 212 patients who were breastfeeding and developed breast abscess treated at Guangzhou Women and Children's Medical Center from January 2018 to December 2019 were retrospectively reviewed. Patients were divided into two groups: those who maintained breastfeeding (study group) and those who stopped breastfeeding (control group). Results: There were 139 patients in study group and 73 patients in the control group. Baseline characteristics were similar between the two groups. The time to cure in the study group and in the control group was 7.20 ± 2.21 days and 7.01 ± 2.39 days, respectively (t = 0.579, p = 0.563). Common complications were milk fistula and galactocele, and the frequency of both was similar between the two groups (milk fistula: 7.9% versus 8.2%, respectively; χ² = 0.006, p = 0.938; galactocele: 8.6% versus 9.6%, respectively; χ² = 0.054, p = 0.817). There was no significant difference in the recurrence rates between the two groups (5.0% versus 2.7%; χ² = 0.184, p = 0.668). Conclusion: Maintaining breastfeeding during treatment of breast abscess does not affect the outcome of treatment provided, on condition that the abscess is treated appropriately.

Low Job Control and Racial Disparities in Breastfeeding

BACKGROUND

Low job control may predict shorter breastfeeding (BF) among working mothers and may contribute to racial disparities in BF.

METHODS

We used demographic, employment, and health data for n = 631 observations from the Panel Study of Income Dynamics. Job control scores came from a job-exposure matrix.Using path analysis, we assessed whether job control predicted BF and mediated Black-White BF differences. We controlled for education, working hours, marital status, and low birthweight.

RESULTS

Lower job control predicted decreased odds of BF for at least 6 months (odds ratio, 0.61; 95% confidence interval, 0.31-0.90; reference, no BF). Low job control explained 31% of the Black-White difference for both shorter-term and longer-term BF.

CONCLUSIONS

Low job contributes to shorter BF and to BF disparities by race. Intervening to enhance job control could improve BF.

Comparison of the Effectiveness of Four Commercial DNA Extraction Kits on Fresh and Frozen Human Milk Samples

For-profit donor human milk organizations have DNA-based proprietary methodology for testing incoming milk for adulteration with other species’ milk. However, there is currently no standardized methodology for extracting DNA from human milk. Microbiome research has shown that DNA purity and quantity can vary depending on the extraction methodology and storage conditions. This study assessed the purity and quantity of DNA extracted from four commercially available DNA extraction kits—including one kit that was developed for human milk. This study was for method validation only. One donor provided a 90 mL human milk sample. The sample was aliquoted into 70 × 1 mL microcentrifuge tubes. Aliquots were randomized into one of three categories: fresh extraction, extraction after freezing, and extraction after purification and storage at room temperature. DNA was analyzed for purity and quantity using a NanoDrop Spectrophotometer. Results confirmed differences in DNA purity and quantity between extraction kits. The Plasma/Serum Circulating DNA Purification Mini Kit (Norgen Biotek, ON, Canada) provided significantly more DNA, and consistent purity as measured by 260/280 and 260/230 ratios. DNA quantity and purity were similar between fresh and frozen human milk samples. These results suggest that DNA purity and quantity is highest and most consistent when extracted from human milk using the Plasma/Serum Circulating DNA Purification Mini Kit amongst the kits tested in this study. Standardized methodology for extracting DNA from human milk is necessary for improvement of research in the field of human milk. To do this, future studies are recommended for optimization of DNA extraction from human milk using larger sample sizes and multiple donor parents.

Organophosphate esters and their diester metabolites in infant formulas and baby supplementary foods collected in Beijing, China: Occurrence and the implications for infant exposure

Organophosphate esters (OPEs) have been extensively used as flame retardants and/or plasticizers and they found to be ubiquitous in various environmental matrices along with the gradual phase-out of brominated flame retardants (BFRs). Moreover, their main metabolites, organophosphate di-esters (di-OPEs), were also frequently detected. However, few studies focused on the occurrence of OPEs and di-OPEs in foods. In this study, fourteen OPEs and five di-OPEs were measured in infant formula and baby supplementary food (BSF) collected in Beijing, China. Most OPEs and di-OPEs presented high detection frequencies, which indicated their ubiquity in baby foods. The concentrations of ∑₁₄OPEs in the 75 infant formula samples ranged from 0.79 to 159 ng/g, with a median of 23.2 ng/g, and in which triphenyl phosphate (TPhP) was the most abundant compound. The concentrations of ∑₁₄OPEs in the 32 BSF samples were 4.42-115 ng/g (median: 19.5 ng/g), and tri(3-chloropropyl) phosphate (TCIPP) was predominant. Moreover, no significant difference was observed between OPE levels in infant formula and BSF. The median concentrations of Σ₅di-OPEs in infant formula and BSF were 3.39 and 5.43 ng/g, respectively. However, no significantly correlation was observed between concentrations of di-OPEs and their parent compounds, which indicated they have different sources. The median estimated dietary intakes (EDIs) of the ∑₁₄OPEs were from 165 to 383 ng/kg bodyweight (bw)/day for infants via infant formula feeding, and were from 429 to 470 ng/kg bw/day via BSF feeding. A comparison to corresponding reference dose (RfD) suggested that dietary intakes of OPEs to Beijing infants via formula/BSF consumption were still unable to cause significant health concerns. However, EDIs of OPEs for infants were found to be significantly higher than that for Chinese adults, and dietary intake might be the predominant OPE intake pathway for infants. To our knowledge, this is the first study to investigate OPEs and their metabolites in baby foods.

Kusrin Z, Abdul Majid L, Saidon R, Illias MZ. A quantitative study on Muslim milk mother’s understanding of the Islamic concept of wet nursing

Background

The practice of wet nursing or breastfeeding another woman’s child in Malaysia, especially among Muslim mothers, is on the rise. This is due to the emergence of public awareness of the benefits of breast milk to children. However, it is claimed that some mothers do not have a clear understanding of the Islamic rulings concerning wet nursing, especially those related to mahram (prohibition to marry), nasab (lineage) and inheritance. Hence, the purpose of this study is to examine the level of understanding of the legal implications of wet nursing and the factors influencing the practice among Muslim mothers who have practiced breastfeeding.

Methods

This was a cross-sectional descriptive study that was conducted between January and July 2019. This study was conducted with 100 Muslim mothers who had breastfed others’ child(ren) in Selangor. Data were obtained using a validated questionnaire (Cronbach’s alpha = 0.8) and processed using the Statistical Package for the Social Sciences (SPSS) software.

Results

The results show that the majority of the respondents understand the basic Islamic rulings on wet nursing, especially on the persons prohibited to marry, conditions and feeding method. However, the respondents need to further understand the rulings related to nasab (lineage), guardianship and inheritance involving the milk child. Various factors that have influenced wet nursing in society were also found.

Conclusions

This study has significant implications for the need to have more activities to create awareness and enhance the understanding related to wet nursing among Muslim women in society. Therefore, more research studies related to wet nursing and the impact of the practice should be conducted to offer better solutions to society.

Determinants of Infant Young Child Feeding Among Mothers of Malnourished Children in South Punjab, Pakistan: A Qualitative Study

Inadequate feeding is one of the most critical underlying determinants of child malnutrition. In this study, we explore infant young child feeding (IYCF) and deconstruct breastfeeding barriers in mothers of severely malnourished children in one of the most marginalized districts of Punjab province of Pakistan. Using purposive sampling, 20 lactating mothers are recruited for open-ended semi-structured interviews. Results reveal that barriers to immediate and exclusive breastfeeding include the introduction of pre-lacteal, butter, and cow or formula milk by mothers and grandmothers. Birthing difficulties and ritualizing prelacteal to transfer religion and culture cause the delay of early initiation of breastmilk. The colostrum is also discarded based on its weird physical look. Moreover, household circumstances, limited diet, extra workload, and mental stress associated with marital relationships are other significant barriers. Mothers perceive their breastmilk as thin, impotent, and of bad quality and often complain against breastmilk insufficiency due to general weakness. Furthermore, poor mothers reduce breastfeeding when the fertility burden is high, especially if a female baby is in their womb. Alternatively, outer milk is recommended but washing bottles with detergents often becomes frequent. In conclusion, immediacy, exclusivity, frequency, and duration of breastfeeding are circumscribed owing to multiple social, cultural, and economic causes. Therefore, a holistic approach combining cultural and structural causes might be more relevant for successful IYCF practices in marginalized communities of Pakistan.

Why does mode of conception affect early breastfeeding outcomes? A retrospective cohort study

Introduction

It is uncertain whether Assisted Reproductive Technology (ART) is associated with an increased risk of poor breastfeeding outcomes and what could be possible mechanisms. This study aimed to examine the effect of mode of conception on breastfeeding outcomes during the first two months postpartum and identify the potential mediating pathways for this relationship.

Methods

A retrospective cohort study was conducted in a sample of 3,565 women with live births. Participants were classified by mode of conception as follows: fertile women who conceived naturally (fertile women; n = 2,857), women with infertility who conceived naturally (sub-fertile women; n = 483), and women with infertility who conceived through ART (women with infertility; n = 310). The infant-feeding patterns were assessed with four-time points before two months postpartum. Binary and multinomial logistic regression and causal mediation analyses were performed.

Results

The rates of breastfeeding initiation and discontinuation across modes of conception were similar. However, infertile and sub-fertile women had 37% (95% CI 1.02, 1.83) and 56% (95% CI 1.06, 2.27) increased risks of introducing formula before the first week postpartum, respectively, and 35% (95% CI 1.01, 1.82) and 52% (95% CI 1.04, 2.24) higher risks of exclusive breastfeeding for less than one week, respectively, compared to fertile women. The relationships were mainly mediated through multiple gestation and admission to neonatal/pediatric intensive care units (NICU/PICU; proportions of mediation were over 50%). The effects of mode of conception on breastfeeding outcomes became not significant in cases of singleton birth.

Conclusions

Sub-fertile women and women with infertility intended to breastfeed but experienced higher perinatal risks in the early postpartum period. Multiple gestation and admission to NICU/PICU forced them to introduce formula earlier than preferred, thus leading to a shorter duration of exclusive breastfeeding. Single embryo transfer policy and breastfeeding support in NICU/PICU could help those women achieve positive early breastfeeding outcomes.

Pregnancy exposure to bisphenol A and duration of breastfeeding

INTRODUCTION

Bisphenol A (BPA) is frequently used in the production of plastics. It is an endocrine disruptor, and BPA exposure in mice has been associated with reduced offspring growth due to insufficient milk production. However, human studies of associations between BPA exposure and duration of breastfeeding are sparse.

METHODS

Pregnant women from the Odense Child Cohort (n = 725) donated a third trimester morning urine sample, which was analyzed for BPA by LC-MS/MS. Information about duration of exclusive and any breastfeeding was obtained through questionnaires three and 18 months postpartum, and a subgroup of women responded to weekly text messages about breastfeeding. Associations between pregnancy BPA exposure and duration of breastfeeding were analyzed using Cox regression adjusting for potential confounders.

RESULTS

The median urine BPA concentration was 1.29 ng/mL. Compared to women within the lowest tertile of BPA exposure, women in the second and third tertile were slightly more likely to terminate breastfeeding at any given time; HRs (95% CI) were 1.05 (0.87; 1.26) and 1.06 (0.89; 1.27), respectively, and to terminate exclusive breastfeeding at any time up to 20 weeks after birth, HRs (95% CI) were 1.07 (0.88; 1.28) and 1.06 (0.88; 1.27), respectively. However, confidence intervals were also compatible with no effect or even a protective effect.

DISCUSSION

This study indicated that high BPA exposure in pregnancy was associated with shorter duration of breastfeeding. Although our findings were not statistically significant, all estimates were above one suggesting increased risk of early breastfeeding termination with high exposure. Using a single spot morning urine sample to measure BPA has likely caused imprecision as it might not adequately reflect long term exposure. Future studies should consider measuring BPA more than once, including other timepoints during pregnancy and after birth.

Human milk: From complex tailored nutrition to bioactive impact on child cognition and behavior

Human milk is a highly complex liquid food tailor-made to match an infant's needs. Beyond documented positive effects of breastfeeding on infant and maternal health, there is increasing evidence that milk constituents also impact child neurodevelopment. Non-nutrient milk bioactives would contribute to the (long-term) development of child cognition and behavior, a process termed 'Lactocrine Programming'. In this review we discuss the current state of the field on human milk composition and its links with child cognitive and behavioral development. To promote state-of-the-art methodologies and designs that facilitate data pooling and meta-analytic endeavors, we present detailed recommendations and best practices for future studies. Finally, we determine important scientific gaps that need to be filled to advance the field, and discuss innovative directions for future research. Unveiling the mechanisms underlying the links between human milk and child cognition and behavior will deepen our understanding of the broad functions of this complex liquid food, as well as provide necessary information for designing future interventions.

Prenatal breastfeeding knowledge, attitude and intention, and their associations with feeding practices during the first six months of life: a cohort study in Lebanon and Qatar

Background

Prenatal knowledge, attitude, and intention related to breastfeeding are postulated as important modulators of feeding practices. Using data from the Mother and Infant Nutritional Assessment (MINA) study, a three year cohort conducted in Lebanon and Qatar, this study aimed to characterize breastfeeding practices during the first six months postnatally and examine their associations with prenatal breastfeeding knowledge, attitude, exposure, and intention.

Methods

Pregnant women during their first trimester were recruited from primary healthcare centers in Beirut and Doha. Data collection was conducted in 2015 − 2018. Participants were followed-up until the child was twoyears old. Exposure, knowledge, attitude, and intentions regarding breastfeeding were assessed during the third trimester of pregnancy (n = 230), using validated questionnaires and scales. Breastfeeding practices were evaluated at four months (n = 185) and six months (n = 151) postpartum. Early initiation of breastfeeding was defined as putting the infant to the breast within one hour of birth, and exclusive breastfeeding (EBF) as feeding exclusively with breast milk.

Results

Breastfeeding practices were as follows: ever breastfeeding: 95.8%; early initiation of breastfeeding: 72.8%; breastfeeding at four and six months: 70.3% and 62.3%; EBF at four and six months: 35.7% and 18.5%. Over 95% of participants had high breastfeeding exposure, and 68.8% had strong / very strong intentions to breastfeed. Only 25% had very good knowledge, and 9.2% reported positive/strong positive attitude towards breastfeeding. After adjustment, high exposure was associated with greater odds of breastfeeding initiation (OR 10.1: 95% CI 1.25, 80.65). Both positive attitude towards breastfeeding and strong intention to breastfeed were associated with EBF at four months (OR 2.51; 95% CI 1.02, 6.16 and OR 4.0; 95% CI 1.67, 9.6), breastfeeding at four months (OR 2.92: 95% CI 1.29, 6.62 and OR 5.00: 95% CI 2.25, 11.1), and breastfeeding at six months (OR 3.74: 95% CI 1.24, 11.32 and OR 8.29: 95% CI 2.9, 23.68).

Conclusions

Findings of this study documented suboptimal knowledge and attitude towards breastfeeding and showed that prior exposure, a positive attitude, and a strong intention to breastfeed prenatally were significant predictors of breastfeeding practices postnatally. This highlights the need to develop specific interventions and policies aimed at improving breastfeeding attitudes and creating an enabling environment that supports women throughout their breastfeeding journey.

Supplementary Information

The online version contains supplementary material available at 10.1186/s13006-022-00456-x.

[Knowledge of breastfeeding among mothers before maternity discharge]

OBJECTIVES

The aim of our study was to assess the knowledge of parturients about breastfeeding and to analyze the factors influencing this level of knowledge.

METHODS

It was a prospective, descriptive and analytical, cross-sectional study carried out over a period of six months including 500 parturients who gave birth at the maternity unit of the National Center for Maternity and Neonatalogy of Tunis during the period from July to December 2020. Sociodemographic, obstetrical and breastfeeding related data were collected through individual interviews carried out before leaving the postpartum service using a questionnaire written in Tunisian dialectal Arabic.

RESULTS

The average age of the mothers was 31.5 years. Housewives accounted for 73.3 % of cases. Forty-four percent of the women surveyed were first-time mothers. The main source of information was relatives (74.8 %). The prevalence of breastfeeding was 93.8 %. Knowledge about breasfeeding was insufficient in 76.4 % of cases. The level of knowledge was insufficient in particular regarding signs of effective breastfeeding, signs of awakening of the newborn, lactogenesis, and diet of breastfeeding women. Unemployment of the parturient age over 30 and primiparity negatively influenced the knowledge of parturients.

CONCLUSION

The level of knowledge of parturients was heterogeneous but generally insufficient. Health education programs on MA targeting subjects most at risk of insufficient knowledge should be put in place in order to improve the knowledge base and hopefully improve the breastfeeding rates.

Pregnancy Exposure to Perfluoroalkyl Substances and Associations With Prolactin Concentrations and Breastfeeding in the Odense Child Cohort

CONTEXT

Human exposure to perfluoroalkyl substances (PFAS) has been associated with reduced duration of breastfeeding, although not consistently so, and mechanisms by which PFAS might affect breastfeeding are unknown.

OBJECTIVE

To examine the association between early pregnancy serum-PFAS concentrations and breastfeeding termination and to elucidate the potential role of serum-prolactin concentrations in pregnancy.

MATERIALS AND METHODS

Pregnant women from the Odense Child Cohort provided blood samples for analysis of 5 major PFAS (n = 1300) and prolactin concentrations (n = 924). They subsequently provided information about the duration of breastfeeding in questionnaires at 3 and 18 months postpartum, and a subgroup also provided breastfeeding information via weekly cell phone text messages. Associations between serum-PFAS concentrations and breastfeeding termination were analyzed using Cox regressions, while linear regression was used to assess associations between serum-PFAS and prolactin concentrations.

RESULTS

Increased serum concentrations of perfluorooctane sulfonic acid, perfluorooctanoic acid, perfluorononanoic acid, and ∑PFAS were associated with a 16% (95% CI: 4%-30%), 14% (95% CI: 2%-26%), 14% (95% CI: 3%-27%), and 20% (95% CI: 6%-36%), respectively, increased risk of terminating breastfeeding at any given time after childbirth. Serum-PFAS concentrations were not associated with serum-prolactin concentrations.

CONCLUSIONS

These findings are of public health importance due to the global exposures to PFAS. Because breastfeeding is crucial to promote both child health and maternal health, adverse PFAS effects on the ability to breastfeed may have long-term health consequences.

Analysis of gene expression from human breastmilk cells: A comparison between low and high producers, and the influence of anxiety and depression on milk production, gene expression and bacterial production

Background

Breastmilk is considered the gold standard of infant nutrition. Many mothers have difficulty with breastfeeding and over 50% of women stop due to perceived low production.

Aims and methods

Our study compared gene expression in 8 samples of low and high producers of milk. All subjects were administered GAD-7 and PHQ-9 questionnaires. Low-producers were all found to have more depression and anxiety compared to high-producers.

Results

We did not find significant differences between gene expression between low and high milk producers. Only 5 of 8 samples contained a significant number of human cells. We did find differences in the amount of various bacterial populations.

Conclusion

Our results indicate that gene expression in breastmilk is complicated by collection methods. We recommend that even though some women produced less than 600 ml of milk over a 24-hour period of time, due to the nature of the bacteria found in milk they try to breastfeed as much as they can for the health benefits of their infants. the rich bacterial diversity in all patients including the low producers strongly suggests that even women producing lesser quantities of milk confer their children numerous benefits by breastfeeding them.

Testing the buffering hypothesis: Breastfeeding problems, cessation, and social support in the UK

OBJECTIVES

Physical breastfeeding problems can lead women to terminate breastfeeding earlier than planned. In high-income countries such as the UK, breastfeeding problems have been attributed to the cultural and individual "inexperience" of breastfeeding, ultimately leading to lower breastfeeding rates. Yet, cross-cultural evidence suggests breastfeeding problems still occur in contexts where breastfeeding is common, prolonged, and seen publicly. This suggests breastfeeding problems are not unusual and do not necessarily lead to breastfeeding cessation. As humans evolved to raise children cooperatively, what matters for breastfeeding continuation may be the availability of social support during the postnatal period. Here, we test the hypothesis that social support buffers mothers from the negative impact breastfeeding problems have on duration.

METHODS

We run Cox models on a sample of 565 UK mothers who completed a retrospective online survey about infant feeding and social support in 2017-2018.

RESULTS

Breastfeeding problems were important predictors of cessation; however, the direction of the effect was dependent on the problem type and type of support from a range of supporters. Helpful support for discomfort issues (blocked ducts, too much milk) was significantly associated with reduced hazards of cessation, as predicted. However, helpful support for reported milk insufficiency was assoicated with an increased hazard of cessation.

CONCLUSIONS

Experiencing breastfeeding problems is the norm, but its impact may be mitigated via social support. Working from an interdisciplinary approach, our results highlight that a wide range of supporters who provide different types of support have potential to influence maternal breastfeeding experience.

Work, race and breastfeeding outcomes for mothers in the United States

Background

In the United States, mothers’ employment status and occupation are related to breastfeeding. However, it is unclear whether not working leads to longer breastfeeding duration even when compared to professional/managerial jobs, which tend to accommodate breastfeeding better than service/manual labor jobs. Furthermore, occupation and breastfeeding are racially patterned, and it is possible that race could moderate the relationships between mother’s work and breastfeeding.

Methods

Using data from the Panel Study of Income Dynamics, we modeled breastfeeding duration based on mother’s employment/occupation (not working, professional/managerial work, or service/labor work) during the first 6 months postpartum, as well as mother’s race (White, Black or other) and other potential confounders. We used zero-inflated negative binomial regression models and tested an interaction between employment/occupation type and race. Predictive margins were used to compare breastfeeding duration among subgroups.

Results

Mothers working in service/labor occupations had the shortest breastfeeding duration of the three employment/occupation groups, and there was no significant difference in duration between not working and professional/managerial occupation. White mothers had longer breastfeeding duration than Black mothers on average. When we included an interaction between employment/occupation and race, we found that among White mothers, non-working mothers breastfed the longest, while mothers in service/labor work breastfed for the shortest duration, but among Black mothers, mothers in professional/managerial work breastfed for longer than mothers in the other two work categories.

Discussion

Race moderated the relationship between employment status/occupation type and breastfeeding such that, for White mothers, not working was the most advantageous circumstance for breastfeeding, in line with traditional work-family conflict theory. In contrast, for Black mothers, professional/managerial work was the most advantageous circumstance. These findings support the idea of the Market-Family Matrix, which allows that different work scenarios may be more or less advantageous for parenting behaviors like breastfeeding, depending on mothers’ circumstances.

Factors Influencing Uptake of Breastfeeding: The Role of Early Promotion in the Maternity Hospital

BACKGROUND

This study aimed to explore the prevalence of breastfeeding at birth points in Sicily and the relevance of the factors influencing the adoption of exclusive breastfeeding during hospitalization linked to childbirth.

METHODS

A survey was conducted to monitor the prevalence of breastfeeding in seven out of nine facilities providing maternity services in the province of Catania (Sicily, Southern Italy) in the years 2016-2018. An online questionnaire was administered using an electronic tablet by the midwife to the mother after discharge.

RESULTS

Women who had a higher educational qualification breastfed in a greater proportion (59.6%; odds ratio OR 0.60 for abandoning breastfeeding). Having had a caesarean section moderately impaired breastfeeding uptake, with an almost double chance of declining exclusive breastfeeding (OR = 1.74). Starting breastfeeding within 1 h from delivery showed a significant facilitating effect (OR = 0.58). Rooming-in had a strong facilitating effect on exclusive breastfeeding. A breastfeeding advocacy program was shown to protect from abandoning breastfeeding.

CONCLUSIONS

It is important to offer in all hospitals the possibility and support for breastfeeding in the first moments after childbirth to increase the number of those who will then continue with exclusive breastfeeding.

First 1000 days: New Zealand Mothers' perceptions of early life nutrition resources

Research into associations between early life nutritional exposures and vulnerability to adult non-communicable disease (NCD) highlights the importance of maternal diet. A booklet outlining evidence-based dietary guidelines for the first 1000 days of life was first published in 2016 by early life nutrition experts for distribution to pregnant women in Australia and New Zealand. First-time New Zealand mothers' (n=9) perceptions of the booklet and its relevance for the future health of their child were explored via semi-structured focus groups and interviews. Recruitment took place via social media channels and antenatal classes around Auckland. Three major themes were identified using thematic analysis: 1. A difference in the ways mothers related to the booklet depending on their apparent level of health literacy and communication preferences; 2. A tendency for women to outsource decision-making to nutrition 'rules', rather than interpreting information to suit personal circumstances; 3. Intense pressure to comply, resulting in feelings of shame or guilt when the 'rules' were not followed. In this study, first-time mums expressed feeling under pressure to 'get it right' and identified a desire for more support from healthcare providers and society. Nutrition education is essential; however, a booklet should provide a starting point for conversation rather than a stand-alone list of recommendations. Further exploration is needed to develop a resource that can be used by health professionals working alongside women and their partners to support healthy child development.

The effect of spousal support perceived by mothers on breastfeeding in the postpartum period

Objective

To examine the effect of mothers' perceived spousal support on breastfeeding during lactation.

Material and Methods

This is a descriptive cross-sectional study. The sample of the study consist of 80 mothers who were registered with a Pediatric Adolescent Women and Reproductive Health Center. The socio-demographic and obstetric descriptive information form and Women's Perceived Spouse Support Scale in Early Puerperium Process were used for the collection of data. Data were analyzed with number and percentage, t-test, chi-square test, ANOVA, and Tukey test.

Results

The mean age of the mothers who participated in the study was 27.05±3.50, while the mean age of the spouses was 30.58±4.12. It was determined that 41.3% of the mothers and 48.8% of the spouses were high school or higher graduates and 68.8% of the mothers didn't work and all of the spouses worked. Most of the mothers (63.7%) were primiparous and 60% had a cesarean section, 56.3% did not receive lactation education and consultation, and most of the women had exclusive breastfeeding. The mean score of the Women's Perceived Spousal Support Scale in the Early Puerperium Period of the exclusively breastfeeding mothers was 72.93 while the partial breastfeeding mothers' was 54.93 (p=0.00). Also, it was found that males with younger age group and high school and lower education level had less support for their spouses (p=0.03, p=0.02), and the rate of exclusive breastfeeding was higher in the spouses of males in higher education level (p=0.01).

Conclusion

Mothers who received more support from their spouses during the postpartum period had higher breastfeeding rates. It was determined that males with younger age and education level below high school gave less support to mothers in breastfeeding.

[Information Resource Network Analysis of Factors Influencing Breastfeeding Planning and Duration]

PURPOSE

This study aimed to identify the modifiable factors affecting breastfeeding planning and duration among healthy mothers and their use of breastfeeding information resources.

METHODS

A cross-sectional survey was conducted in a community setting. Four hundreds participants were recruited at five pediatric clinics and three community health centers located in Paju-si and Goyang-si, Gyeonggi-do, between January and May 2019. Based on the breastfeeding decision-making model, driven by Martens and Young's work, the survey items consisted of demographics, childbirth and breastfeeding characteristics, and breastfeeding information resources. In the analysis, 389 responses were used in the t-test, ANOVA, and logistic regression. Information resource networks were compared before and after childbirth including a subgroup analysis depending on the breastfeeding duration.

RESULTS

The modifiable factors affecting breastfeeding planning and duration were antenatal and postpartum breastfeeding education and the provision of information in the hospital. The frequency of Internet use and websites visited were notable and potentially modifiable factors, which were also observed in the networks showing different relationship patterns according to participant subgroups and times. The childbirth event increased the centralization of the network in the planned group, while the network of the non-planned group was more diffused after childbirth. The network of the short-term breastfeeding group was characterized by a more centralized pattern and the resources of high betweenness centrality than the long-term group.

CONCLUSION

Breastfeeding education is a consistent factor that affects breastfeeding behavior. A well-designed internet-based approach would be an effective nursing intervention to meet the needs of women seeking breastfeeding information and changing their behaviors.

Effect of frenotomy on breastfeeding and reflux: results from the BRIEF prospective longitudinal cohort study

Objectives

To assess the Efficacy of Frenotomy with regard to Breastfeeding and Reflux Improvement (BRIEF) in infants with breastfeeding problems.

Materials and methods

A cohort of 175 consecutive breastfeeding women with breastfeeding and reflux problems related to a tongue-tie or lip-tie fulfilling the inclusion criteria was longitudinally followed for 6 months. The effect of frenotomy on these problems was studied by a standardized oral assessment and completing the validated Breastfeeding Self-Efficacy Short Form (BSES-SF), nipple pain score (Visual Analogue Scale, VAS), and Infant Gastroesophageal Reflux Questionnaire Revised (I-GERQ-R) questionnaires pre-frenotomy and at 1 week, 1 month, and 6 months’ post frenotomy.

Results

All 175 women completed the 1-month follow-up and 146 women the 6 months’ follow-up. Frenotomy resulted in a significant improvement of BSES-SF, nipple pain score, and I-GERQ-R after 1 week, which improvement maintained to be significant after 1 month for BSES-SF and I-GERQ-R, and after 6 months for I-GERQ-R. The improvements were irrespective of the type lip-tie or tongue-tie underlying the breast feeding and reflux problems. No post-operative complications were observed. About 60.7% of infants still was breastfed 6 months after treatment.

Conclusions

Frenotomy is a safe procedure with no post-operative complications and resulting in significant improvement of breastfeeding self-efficacy, nipple pain, and gastro-oesophageal reflux problems.

Clinical relevance

Frenotomy of a tongue-tie and or lip-tie can lead to improvement of breastfeeding and reflux problems irrespective of the type of tongue-tie or lip-tie and should be considered by clinicians as a proper tool to resolve these problems if non-interventional support did not help.

International trial register

ISRCTN64428423

Supplementary Information

The online version contains supplementary material available at 10.1007/s00784-020-03665-y.

Prematurity and breastfeeding initiation: A sibling analysis

AIM

Studies suggest breastfeeding initiation is less common for premature infants. This association may be confounded by socio-economic characteristics that correlate with the risk of premature birth. We compared premature and term-born children to determine whether prematurity independently predicted likelihood of breastfeeding continuation and duration.

METHODS

Data were obtained from women ages 15-44 years reporting at least two live pregnancies on the 2011-2017 National Survey of Family Growth. Participants completed a pregnancy and breastfeeding history. Breastfeeding initiation was defined as breastfeeding for at least 1 week, and duration of exclusive breastfeeding was recorded in months. Sibling fixed effects regression models were used to evaluate the impact of prematurity.

RESULTS

Among families with some children who were breastfed and others who were not (n = 2848 children), preterm birth was not associated with breastfeeding initiation (odds ratio = 1.11; P = .468). Among children who were ever breastfed, exclusive breastfeeding lasted 5% fewer months among children born preterm, compared with term-born siblings (incidence rate ratio = 0.95; P = .060).

CONCLUSION

Using sibling-group analysis to control for confounding, we found no independent association between prematurity and likelihood of breastfeeding initiation. This suggests interventions supporting breastfeeding for premature infants may need to address external barriers to breastfeeding not specifically preterm birth.