What are the risks associated with formula feeding? A re-analysis and review

Prevalence of and factors associated with formula feeding among mothers with infants 0-6 months of age in Ethiopia: a systematic review and meta-analysis

CONTEXT

Inconsistent results have been reported regarding the prevalence of and factors associated with formula feeding in Ethiopia.

OBJECTIVE

This study aimed to determine the pooled prevalence of and factors associated with formula feeding among mothers with infants 0-6 months of age in Ethiopia.

DATA SOURCES

A comprehensive systematic search was conducted across 3 databases (PubMed, EMBASE, and ScienceDirect) and the Google Scholar search engine to identify relevant studies published up to April 2, 2024.

DATA EXTRACTION

After assessing the quality of each study using the Joanna Briggs Institute Critical Appraisal Checklist for Prevalence Studies, data were independently extracted by 2 authors using pre-designed forms in an Excel spreadsheet. Any disagreements were resolved through discussion and consultation with additional authors.

DATA ANALYSIS

Statistical heterogeneity across studies was assessed using the I2 statistic. A random-effects meta-analysis was used to pool the proportions, due to high heterogeneity, while a fixed-effect meta-analysis was used to pool associated factors with low heterogeneity. A sensitivity analysis was performed to assess the potential impact of outlier studies on the overall estimates. Five studies, with a combined sample size of 2344 participants, were included. The pooled prevalence of formula feeding was 34.0% (95% CI: 23.0%, 44.0%). Factors significantly associated with formula feeding included cesarean delivery (POR [pooled odds ratio] = 4.72, 95% CI: 3.32, 6.71) compared with vaginal delivery, a positive attitude toward formula feeding (POR = 2.26, 95% CI: 1.45, 3.53) compared with a negative attitude, initiation of breastfeeding more than 1 hour after delivery (POR = 2.27, 95% CI: 1.25, 4.13) compared with initiation within 1 hour, and receiving information about formula feeding from friends or family (POR = 2.47, 95% CI: 1.46, 4.20) compared with receiving information from health-care professionals.

CONCLUSION

The prevalence of formula feeding in Ethiopia is significant. Cesarean delivery, a positive attitude toward formula feeding, late initiation of breastfeeding, and receiving formula feeding-related information from friends and family were positively associated with formula feeding. Given these findings, the authors recommend that public health interventions in Ethiopia target these key determinants to decrease the high prevalence of formula feeding practices observed in the country. Strategies addressing factors such as promoting vaginal delivery, improving attitudes toward breastfeeding, encouraging early breastfeeding initiation, and limiting the influence of social networks on formula-feeding decisions may be beneficial.

Investigating the association between labor pain and cessation of breastfeeding

Mothers encounter several challenges to sustain breastfeeding until the recommended 6 months of age. There is limited evidence on the impact of women's labor pain experiences upon cessation of breastfeeding. We aimed to investigate the association between women's labor pain experiences, intrapartum interventions, and pre-birth psychological vulnerabilities and cessation of breastfeeding. This was a secondary analysis of a clinical trial conducted in a tertiary hospital in Singapore between June 2017 and July 2021. Data were obtained from participants, electronic records and surveys administered before delivery, and postpartum 6-10 weeks. A total of 624 (76.8%) women were still breastfeeding at postpartum 6-10 weeks as compared to 189 (23.2%) that had discontinued breastfeeding. Multivariable regression analysis identified lower education level (aOR 3.88, 95% CI 2.57-5.85, p < 0.0001), having diabetes (aOR, 95% CI 1.21-5.44, p = 0.0141), presence of obstetric complications (aOR 1.57, 95% CI 1.00-2.46, p = 0.0494), artificial rupture of membrane (ARM) and oxytocin induction (aOR 2.07, 95% CI 1.22-3.50, p = 0.0068), lower age (aOR 0.92, 95% CI 0.88-0.97, p = 0.0010) and higher A-LPQ birth pain score (aOR 1.02, 95% CI 1.01-1.04, p = 0.0064) as independent associations with cessation of breastfeeding at postpartum 6-10 weeks, with AUC of the model being 0.72 (95% CI 0.68-0.77). Higher pain experienced during labor is associated with cessation of breastfeeding among several other intrapartum interventions and psychological vulnerabilities. Using risk stratification strategy, breastfeeding support services could be provided to women to optimize successful breastfeeding in the postpartum period.Trial registration: This study was registered on Clinicaltrials.gov NCT03167905 on 30/05/2017.

Accuracy in Measurement of Infant Formula Powder and Water by Caregivers With and Without a Crying Baby Present

This cross-sectional study assesses the accuracy in measurement of powder and water when preparing infant formula in the presence or absence of a simulated crying baby.

Variability and error in measurement of infant formula powder and water: an experimental study

Introduction

Formula feeding is the only viable nutrition alternative for infants 0-6mos who cannot breastfeed. Among the drawbacks of formula feeding, however, is potential dilution or concentration errors in the formula during preparation that may lead to infant health issues. The present study aimed to investigate the accuracy of caregiver measurements as they prepared infant formula under multiple conditions, compared with manufacturer specifications.

Methods

A diverse sample of caregivers (N = 84) participated in this cross-over experimental study. Participants hand-scooped infant formula powder and poured water to prepare 4oz. and 7oz. feedings, using both a standardized set of infant formula products and participants' own products. Linear mixed effects models were used to estimate fixed effects of target amount (4oz. versus 7oz) and products (participant versus researcher) on mean absolute percent error (MAPE) of measurement.

Results

Across all conditions MAPE was significantly greater for measuring powder than for water (9.0% vs. 4.4%; p < 0.001) with a combined powder and water MAPE at 13.0%. Greater measurement error was associated with the odd-sized 7oz. preparation and participants' own products.

Discussion

We observed considerable variability and substantial error during infant formula preparation, particularly for hand-scooping of powder, which tended toward higher values than the theoretical gold standard.

Protective Characteristics of Human Breast Milk on Early Childhood Otitis Media: A Narrative Review

Introduction: Human breast milk (HBM) contains a complex and dynamically changing variety of factors that contribute to the infant's developing immune system's ability to fight upper respiratory tract infections, including otitis media (OM). We sought to summarize the current evidence on the protective characteristics of HBM, through direct or donated feeding, toward early childhood OM. Methods: For this narrative review, we performed a literature search on OM in the context of HBM feeding in the PubMed, Embase, and Google Scholar databases, between January 1, 2008, and July 1, 2023. Results: Immunoglobulin A (IgA) provides a short-term immunity of 2-3 days against otopathogens causing OM. IgA-mediated immunity is effective against OM up to 7 months of age if breastfeeding continues. The role of transferred IgM and IgG in HBM is unclear. Although there is a potential protective value of microRNA, hormones, oligosaccharides, stem cells, and interleukins present in HBM, their role is unclear. Any duration of breastfeeding is superior to no breastfeeding in OM risk reduction, with a big variability among studies (odds ratio 0.23-0.81, depending on the duration). Duration of breastfeeding ≥6 months was found to be the most effective in OM risk reduction, but there was no evidence of continued benefits after 2 years of age. Expressed breastfeeding was not shown to be more beneficial. The protective values of donor HBM against OM are still undetermined. Conclusion: HBM has numerous components that contribute to protection against early childhood OM.

Perspectives and factors associated with informal human milk sharing: a mixed-methods systematic review protocol

Background

The practice of informal human milk sharing is a relatively new phenomenon and poses significant questions in the domain of infant feeding. Informal human milk sharing is a means of donating human milk from another lactating individual who is not the child's biological parent, in a casual manner, that is, without the involvement of health professionals or agencies. The advent of digital technology has facilitated the donation and receipt of human milk through digital online platforms and thus has amplified this modern practice. This research aims to comprehensively examine and synthesize evidence about the motivations, barriers, facilitators and experiences of individuals who both donate (donors) and the primary care givers of the infants who receive (recipients) human milk informally to provide to infants.

Methods

A mixed-methods systematic review will be undertaken. This review will consider qualitative, quantitative and primary mixed-methods studies which report on the factors associated with informal milk sharing, and on donors' and recipients' experiences of the practice. Primary mixed-method studies will be included if the individual qualitative and quantitative components can be extracted. Five databases will be searched for studies on informal human milk sharing published from inception of the database. Study quality will be evaluated using the standardized JBI critical appraisal tools, selected based on the methodology in each individual study. Data extraction will be conducted using the JBI mixed methods data extraction form followed by data transformation, synthesis and integration. This mixed-methods systematic review will follow a convergent integrated approach in accordance with JBI guidance.

Discussion

Informal human milk sharing is a novel practice in the domain of infant feeding. This review will enable a thorough understanding of this practice from both the donors and recipients' perspective and will have implications for healthcare professionals, policy and future clinical decision-making.

Protocol registration number

PROSPERO CRD42023405653.

Case-control study of exclusive breast feeding and severe bronchiolitis in the United States

BACKGROUND

Bronchiolitis is a major cause of infant illness, with few known modifiable risk factors. Breast feeding may reduce risk of severe bronchiolitis, but the association of exclusive vs. partial breast feeding with severe bronchiolitis is unclear.

OBJECTIVE

To estimate the association of exclusive vs. partial breast feeding during ages 0-2.9 months with bronchiolitis hospitalisation during infancy.

METHODS

We conducted a case-control study as a secondary analysis of two prospective US cohorts in the Multicenter Airway Research Collaboration. Cases were enrolled in a 17-centre study of infants hospitalised for bronchiolitis during 2011-2014 (n = 921). Controls were enrolled in a five-centre study of healthy infants during 2013-2014 and 2017 (n = 719). Breast feeding history during ages 0-2.9 months was collected by parent interview. Among breastfed infants, the association of exclusive vs. partial breast feeding with odds of bronchiolitis hospitalisation was estimated using a multivariable logistic regression model adjusted for demographic variables, parental asthma history, and early-life exposures. As a secondary analysis, we estimated the associations of exclusive, predominant, and occasional breast feeding vs. no breast feeding with the odds of bronchiolitis hospitalisation.

RESULTS

Among 1640 infants, the prevalence of exclusive breast feeding was 187/921 (20.3%) among cases and 275/719 (38.3%) among controls. Exclusive vs. partial breast feeding was associated with 48% reduced odds of bronchiolitis hospitalisation (adjusted odds ratio [OR] 0.52, 95% confidence interval [CI] 0.39, 0.69). In the secondary analysis, exclusive vs. no breast feeding was associated with 58% reduced odds of bronchiolitis hospitalisation (OR 0.42, 95% CI 0.23, 0.77), whereas predominant breast feeding (OR 0.77, 95% CI 0.37, 1.57) and occasional breast feeding (OR 0.98, 95% CI 0.57, 1.69) were not associated with meaningfully reduced odds of bronchiolitis hospitalisation.

CONCLUSION

Exclusive breast feeding had a strong protective association against bronchiolitis hospitalisation.

Does benefits-of-breastfeeding language or risks-of-formula-feeding language promote more-positive attitudes toward breastfeeding among midwives and nurses?

BACKGROUND

Midwives and nurses are crucial in breastfeeding support. Few studies have explored appropriate language for nursing education on breastfeeding. We assessed the impact of the language used on breastfeeding attitudes among midwives and nurses.

METHODS

A quasi-experimental study was conducted online in Japan among 174 midwives and nurses who had work experience in obstetrics or pediatrics. Participants were allocated to three groups to receive different text messages as the intervention (the benefit of breastfeeding for Group 1; the risk of formula feeding for Group 2; the importance of childcare for Group 3 as the comparison). The Japanese version of the Iowa Infant Feeding Attitude Scale (IIFAS-J) was used to assess breastfeeding attitudes before and after reading the texts. Also, participant reactions to the text were assessed by their responses to three statements. ANOVA, the chi-square test, and the t-test were used for outcome assessments.

RESULTS

The post-test IIFAS-J score was significantly higher than the pre-test score only for Group 1 (p <  0.01). The percentage of participants who agreed with the content of the text was 70.7% in Group 1 and 48.3% in Group 2. The percentage of participants who reported discomfort with the text was 34.5% in Group 1 and 55.2% in Group 2. No significant difference among groups existed regarding interest in the text. In all three groups, participants who agreed with the text had a higher post-test IIFAS-J score than those who disagreed with the text (6.85 points higher, p <  0.01 in Group 1; 7.19 points higher, p <  0.01 in Group 2; 8.00 points higher, p <  0.02 in Group 3). Discomfort with the text and interest in the text were associated with a significantly higher post-test IIFAS-J score in Group 1 and Group 2 but not in Group 3.

CONCLUSIONS

"Benefits of breastfeeding" language, which conveys the information in a positive manner, appears to be more appropriate than "risks of infant formula" language for creating a positive attitude toward breastfeeding in nursing education.

TRIAL REGISTRATION

This study was registered in the University Hospital Medical Information Network Clinical Trials Registry (UMIN000023322). Registered 05/08/2016.

Breastfeeding initiation and duration and acute otitis media among children less than two years of age in Jordan: results from a case-control study

BACKGROUND

Acute otitis media (AOM) is one of the most common infectious diseases that affects children. Breastfeeding has been linked to a lower risk of AOM in the first three years of childhood. The aim of this study was to identify the association between exclusive breastfeeding and the development of acute otitis media (AOM) and investigate the influence of breastfeeding duration on the presence of AOM.

METHODS

In a retrospective case-control study, a sample of 98 children (cases) who were diagnosed with AOM and 98 children (controls) who were not diagnosed with AOM and were younger than two years old were selected from the Jordan University Hospital. Medical records were used to identify children with AOM. For both the case and control groups, the children's mothers completed a self-administered questionnaire about factors linked to the incidence of AOM.The type of feeding and the duration of breastfeeding were assessed using a validated questionnaire.

RESULTS

The data indicated that among children who developed AOM, 23.5%were artificiallyfed, while 22.4% and 13.3% were exclusively breastfed for 3 months and 6 months, respectively. Approximately 70.7% of the children without AOM were exclusively breastfed for 6 months, compared with only 29.3% of the children without AOM who were exclusively breastfed for 3 months.Logistic regression revealed that nonexclusive breastfeeding, exclusive breastfeeding for 3 months, and exclusive breastfeeding for 6 months were protective factors against AOM (OR = 0.23, 0.18, and 0.25, respectively; P < 0.05). A short duration of exclusive breastfeeding was considered a risk factor for the development of AOM (OR = 1.7, P < 0.05).

CONCLUSIONS

The escalation of AOM is tightly connected to the early introduction of formula feeding in the first six months of life. Breastfeeding had a protective impact on the occurrence of AOM. Understanding factors that are associated with the occurrence of AOM in children may support the role of public health institutions and primary health care in the prevention and reduction of AOM episodes and the need for national health strategies to promote breastfeeding.

Impact of a Formal Lactation Curriculum for Residents on Breastfeeding Rates Among Low-Income Women

Obstetrics-gynecology residents have inadequate training in lactation management and are typically unable to address basic breastfeeding needs. A retrospective study was performed to evaluate the impact of a formal lactation curriculum for obstetrics-gynecology residents on breastfeeding. Demographic information, medical history, and breastfeeding rates were derived from medical records and hospital lactation logs. Breastfeeding outcomes of women with term, singleton infants were analyzed before and after curriculum implementation. The study included 717 women, 337 prior to intervention and 380 after intervention. Women who delivered after curriculum implementation were more likely to breastfeed exclusively at 6 weeks postpartum (odds ratio [OR]: 2.01; 95% confidence interval [CI]: 1.28-3.15). A targeted breastfeeding curriculum was associated with increased exclusive breastfeeding rates at 6 weeks postpartum in a diverse, low-income population.

Peer-to-Peer Human Milk Sharing: Recipient Mothers' Motivations, Stress, and Postpartum Mental Health

BACKGROUND

Some mothers who cannot breastfeed-partially or completely-choose to feed their infants human milk donated from a peer. Few studies have examined mothers' experiences with using donor milk; none has examined whether or not mothers' stress and mental health are associated with using donor milk from a peer.

METHODS

Researchers conducted semistructured individual interviews with mothers from the United States and Canada (N = 20) to answer the following questions: (a) what are recipient mothers' motivations for participation in peer-to-peer breast milk sharing and (b) what is the relationship between receiving donated milk and mothers' stress and mental health postpartum? Transcripts were coded using an inductive approach and principles of grounded theory were used to analyze data.

RESULTS

Data were organized under two themes: (a) motivations for using milk from a peer and (b) milk-sharing and stress-related experiences. Motivations included health benefits, medical need, and preference for human milk over formula. Factors inducing stress were as follows: logistical stressors of securing donor milk and fear of running out of milk. Factors reducing stress were as follows: donor milk provided relief and comfort and its use reduced mothers' self-reported symptoms of postpartum depression and anxiety.

CONCLUSIONS

Mothers participated in peer-to-peer breast milk sharing primarily because of health benefits for children. However, participation also had important psychological benefits for some mothers. Additional research and open discourse are needed to support mothers who choose to use milk from a peer and to promote safety of this practice.

Going home with baby: innovative and comprehensive support for new mothers

Shorter length of stay for postpartum mothers and their newborns necessitates careful community follow-up after hospital discharge. The vast amount of information given during the initial postpartum period can be overwhelming. New parents often need considerable support to understand the nuances of newborn care including newborn feeding. Primary health care and community services need to ensure there is a seamless continuum of care to support, empower, and educate new mothers and their families to prevent unnecessary hospital readmission and other negative health outcomes. The Healthy & Home postpartum community nursing program provides clinical communication and supports to bridge the gap between acute hospital and community follow-up care through home visits, a primary health care clinic, a breastfeeding center, a breastfeeding café, a postpartum anxiety and depression support group, bereavement support, and involvement in a Baby-Friendly Initiative™ coalition. Nurses working in the program have the acute care skills and resources to complete required health care assessments and screening tests. They are also international board-certified lactation consultants able to provide expert breastfeeding and lactation care. This paper describes how the Healthy & Home program has evolved over the past 25 years and offers suggestions to other organizations wanting to develop a postpartum program to meet the physical and mental health needs of postpartum families to promote maternal and infant wellbeing.

Infant feeding practices among HIV-positive mothers at Tembisa hospital, South Africa

Background

Despite the nutritional, physiological and emotional benefits of breastfeeding, HIV-positive mothers cannot practise exclusive breastfeeding for six months because of a range of influences on their feeding choice – thereby creating a caveat for morbidity in infants.

Aim

This study explored factors influencing the infant feeding choice of HIV-positive mothers at a peri-urban hospital in Tembisa, South Africa.

Methods

This study was qualitative and was conducted among 30 purposefully selected postnatal HIV-positive mothers at Tembisa hospital, Gauteng, from May to June 2011. In-depth interviews were conducted mainly in isiZulu and Sepedi which were then transcribed into English. An open coding system of analysis was used for thematic analysis.

Results

Nurses significantly influenced the feeding choices of new mothers – sometimes with inconsistent information. The grandmothers of infants also influenced the new mothers’ feeding options, in some cases with the new mother coming under duress. Other relatives like the sisters and aunts of mothers appeared to significantly affect feeding choices. The time frames expressed for the initiation of a supplementary diet were as follows: before 1 month, at 1 month and at 4 months. The main reason was the belief that infants required more than breast milk as sustenance during this period.

Conclusion

In the postnatal hospital setting of this study, the feeding choices of mothers were influenced by nursing personnel. Nursing personnel could marry the influential ‘authority’ they have with correct and consistent information, in order to change feeding behaviour. Significant ‘others’ like grandmothers and other relatives also influenced decisions on infant feeding. As such, family dynamics need to be considered when encouraging breastfeeding.

Determinants of chronic otitis media with effusion in preschool children: a case-control study

Background

Chronic otitis media with effusion (COME) is a prevalent upper airway infection resulting in hearing loss. The aim of this research was to determine risk factors for COME in preschool children.

Methods

A case–control design was conducted in Auckland, New Zealand from May 2011 until November 2013. The cases were children aged 3 and 4 years referred for tympanostomy tube placement due to a diagnosis of COME (n = 178). The controls were a random sample of healthy children aged 3 and 4 years from primary care practices (n = 209). The children’s guardians completed an interviewer-administered questionnaire that covered topics including socio-demographic information, pregnancy and birth, infant feeding practices, home environment, and respiratory health. In addition, skin prick tests for atopy were performed. Odds ratios (OR) estimating the risk of COME independently associated with the exposures were calculated using a logistic regression model.

Results

Children with COME frequently had nasal obstruction (OR: 4.38 [95% CI: 2.37–8.28]), always snored (OR: 3.64 [95% CI: 1.51–9.15]) or often snored (OR: 2.45 [95% CI: 1.04–5.96]), spent more hours per week in daycare (OR per hour/week: 1.03 [95% CI: 1.00–1.05]), had frequent colds (OR: 2.67 [95% CI: 1.59–4.53]), had siblings who had undergone tympanostomy tube placement (OR: 2.68 [95% CI: 1.22–6.02]), underwent long labour (OR: 2.59 [95% CI: 1.03–6.79]), and had early introduction of cow’s milk (OR: 1.76 [95% CI: 1.05–2.97]). Asian ethnicity (OR: 0.20 [95% CI: 0.07–0.53]) and having older siblings (OR: 0.54 [95% CI: 0.31–0.93]) were inversely associated with COME.

Conclusion

COME in preschool children was associated with pathogen exposure, respiratory infection, and nasal obstruction. Strategies to prevent pathogen transmission warrant investigation. The novel findings of long labour and early cow’s milk introduction require replication in future studies.

Breastfeeding and infant hospitalisation: analysis of the UK 2010 Infant Feeding Survey

To investigate the contributions of overall breastfeeding duration and exclusive breastfeeding in reducing the risk of hospitalisation for infectious causes, we analysed data from a three-stage survey on infant feeding practices and health outcomes in over 10 000 UK women in 2010-2011. The main outcome measures were risk of overnight hospital admission in the first 8-10 months of infancy. A graded beneficial effect was found between longer duration of any breastfeeding and hospital admission for infectious causes and for respiratory tract infections, with a significantly lower risk in infants breastfed for at least 3 months compared with those never breastfed. The effects were stronger in the subgroup who was also exclusively breastfed. For example, among infants breastfed for 3-6 months, the reduction in risk for infectious causes for those who were also exclusively breastfed for at least 6 weeks was 0.42 (95% CI: 0.22-0.81) and for those not exclusively breastfed for 6 weeks 0.79 (95% CI: 0.49-1.26). Likewise, among infants breastfed for 6 months or more, the odds ratio for those who were also exclusively breastfed for at least 6 weeks was 0.48 (95% CI: 0.32-0.72) and for those not exclusively breastfed for 6 weeks 0.72 (95% CI: 0.48-1.08). The apparent protective effect of any breastfeeding for a long duration may in part be driven by a prolonged period of exclusive breastfeeding. Exclusive breastfeeding in the initial weeks after childbirth and continuing to breastfeed (either exclusively or partially) for at least 3 months, preferably 6 months, may reduce morbidity due to infectious illness in infants.

Public Opinions About Infant Feeding in the United States

BACKGROUND

Exclusive breastfeeding is recommended for the first 6 months of life. However, many barriers to breastfeeding exist. We examine public opinions about the benefits of breastfeeding and the infant health risks associated with formula feeding.

METHODS

A national public opinion survey was conducted in 2013. Participants indicated their level of agreement with four breastfeeding-related statements. Except for the last one, all statements were positively worded with agreement representing positive opinions toward breastfeeding. To focus on the prevalence of positive opinions, we estimated percentage agreement with the first three statements, but disagreement with the fourth. Multiple logistic regression was used to examine how odds of these positive opinions varied by socio-demographic factors.

RESULTS

Seventy-eight percent of participants agreed that breastmilk is nutritionally designed for infants, but few believed breastfeeding protects against overweight (12%). Approximately one-quarter agreed that formula feeding increases the chance of illness, whereas 45 percent disagreed that infant formula is equivalent to breastmilk. Older, less-educated, unmarried, and non-Hispanic black participants were less likely to agree that formula feeding increases the risk of infant illness. Races other than non-Hispanic white, participants aged 30-44 years and 45-59 years, unmarried, and less-educated participants were less likely to disagree with the equivalence of infant formula to breastmilk.

DISCUSSION

The nutritional value of breastmilk is well known. Fewer adults believe that breastfeeding protects against childhood overweight or that formula feeding increases the chance of infant illness. Communication efforts may increase public awareness of the health benefits of breastfeeding.

Reflux Incidence among Exclusively Breast Milk Fed Infants: Differences of Feeding at Breast versus Pumped Milk

The practice of feeding infants expressed breast milk is increasing in the United States, but the impacts on infant and maternal health are still understudied. This study examines the monthly incidence of regurgitation (gastro-esophageal reflux) in exclusively breast milk fed infants from ages two to six months. Among infants whose mothers participated in the Infant Feeding Practices II Study (IFPS II; 2005-2007), data on reflux and feeding mode were collected by monthly questionnaires. A longitudinal, repeated measures analysis was used, with feeding mode lagged by one month in order to compare reflux incidence among infants fed directly at the breast to infants receiving pumped breast milk. Mothers in both feeding groups had similar characteristics, although a greater proportion feeding at least some pumped milk were primiparous. The number of exclusively breastfed infants decreased steadily between months 2 and 6, although the proportion fed at the breast remained similar over time. An association between feeding mode and reflux incidence was not found; however, the analyses were limited by a small number of reported reflux cases. More studies are needed to further explain the relationship between different feeding modes and infant reflux.

Early additional food and fluids for healthy breastfed full-term infants

BACKGROUND

Health organisations recommend exclusive breastfeeding for six months. However, the addition of other fluids or foods before six months is common in many countries. Recently, research has suggested that introducing solid food at around four months of age while the baby continues to breastfeed is more protective against developing food allergies compared to exclusive breastfeeding for six months. Other studies have shown that the risks associated with non-exclusive breastfeeding are dependent on the type of additional food or fluid given. Given this background we felt it was important to update the previous version of this review to incorporate the latest findings from studies examining exclusive compared to non-exclusive breastfeeding.

OBJECTIVES

To assess the benefits and harms of additional food or fluid for full-term healthy breastfeeding infants and to examine the timing and type of additional food or fluid.

SEARCH METHODS

We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (1 March 2016) and reference lists of all relevant retrieved papers.

SELECTION CRITERIA

Randomised or quasi-randomised controlled trials in infants under six months of age comparing exclusive breastfeeding versus breastfeeding with any additional food or fluids.

DATA COLLECTION AND ANALYSIS

Two review authors independently assessed trials for inclusion and risk of bias, extracted data and checked them for accuracy. Two review authors assessed the quality of the evidence using the GRADE approach.

MAIN RESULTS

We included 11 trials (2542 randomised infants/mothers). Nine trials (2226 analysed) provided data on outcomes of interest to this review. The variation in outcome measures and time points made it difficult to pool results from trials. Data could only be combined in a meta-analysis for one primary (breastfeeding duration) and one secondary (weight change) outcome. None of the trials reported on physiological jaundice. Infant mortality was only reported in one trial.For the majority of older trials, the description of study methods was inadequate to assess the risk of bias. Most studies that we could assess showed a high risk of other biases and over half were at high risk of selection bias.Providing breastfeeding infants with artifical milk, compared to exclusive breastfeeding, did not affect rates of breastfeeding at hospital discharge (risk ratio (RR) 1.02, 95% confidence interval (CI) 0.97 to 1.08; one trial, 100 infants; low-quality evidence). At three months, breastfeeding infants who were provided with artificial milk had higher rates of any breastfeeding compared to exclusively breastfeeding infants (RR 1.21, 95% CI 1.05 to 1.41; two trials, 137 infants; low-quality evidence). Infants who were given artifical milk in the first few days after birth before breastfeeding, had less "obvious or probable symptoms" of allergy compared to exclusively breastfeeding infants (RR 0.56, 95% CI 0.35 to 0.91; one trial, 207 infants; very low-quality evidence). No difference was found in maternal confidence when comparing non-exclusive breastfeeding infants who were provided with artificial milk with exclusive breastfeeding infants (mean difference (MD) 0.10, 95% CI -0.34 to 0.54; one study, 39 infants; low-quality evidence). Rates of breastfeeding were lower in the non-exclusive breastfeeding group compared to the exclusive breastfeeding group at four, eight, 12 (RR 0.68, 95% CI 0.53 to 0.87; one trial, 170 infants; low-quality evidence), 16 and 20 weeks.The addition of glucose water resulted in fewer episodes of hypoglycaemia (below 2.2 mmol/L) compared to the exclusive breastfeeding group, reported at 12 hours (RR 0.07, 95% CI 0.00 to 1.20; one trial, 170 infants; very low-quality evidence), but no significant difference at 24 hours (RR 1.57, 95% CI 0.27 to 9.17; one trial, 170 infants; very low-quality evidence). Weight loss was lower for infants who received additional glucose water (one trial, 170 infants) at six, 12, 24 and 48 hours of life (MD -32.50 g, 95% CI -52.09 to -12.91; low-quality evidence) compared to the exclusively breastfeeding infants but no difference between groups was observed at 72 hours of life (MD 3.00 g, 95% CI -20.83 to 26.83; very low-quality evidence). In another trial with the water and glucose water arms combined (one trial, 47 infants), we found no significant difference in weight loss between the additional fluid group and the exclusively breastfeeding group on either day three or day five (MD -1.03%, 95% CI -2.24 to 0.18; very low-quality evidence) and (MD -0.20%, 95% CI -0.86 to 0.46; very low-quality evidence).Infant mortality was reported in one trial with no deaths occurring in either group (1162 infants). The early introduction of potentially allergenic foods, compared to exclusively breastfeeding, did not reduce the risk of "food allergy" to one or more of these foods between one to three years of age (RR 0.80, 95% CI 0.51 to 1.25; 1162 children), visible eczema at 12 months stratified by visible eczema at enrolment (RR 0.86, 95% CI 0.51 to 1.44; 284 children), or food protein-induced enterocolitis syndrome reactions (RR 2.00, 95% CI 0.18 to 22.04; 1303 children) (all moderate-quality evidence). Breastfeeding infants receiving additional foods from four months showed no difference in infant weight gain (g) from 16 to 26 weeks compared to exclusive breastfeeding to six months (MD -39.48, 95% CI -128.43 to 49.48; two trials, 260 children; low-quality evidence) or weight z-scores (MD -0.01, 95% CI -0.15 to 0.13; one trial, 100 children; moderate-quality evidence).

AUTHORS' CONCLUSIONS

We found no evidence of benefit to newborn infants on the duration of breastfeeding from the brief use of additional water or glucose water. The quality of the evidence on formula supplementation was insufficient to suggest a change in practice away from exclusive breastfeeding. For infants at four to six months, we found no evidence of benefit from additional foods nor any risks related to morbidity or weight change. The majority of studies showed high risk of other bias and most outcomes were based on low-quality evidence which meant that we were unable to fully assess the benefits or harms of supplementation or to determine the impact from timing and type of supplementation. We found no evidence to disagree with the current international recommendation that healthy infants exclusively breastfeed for the first six months.

Breastfeeding and childhood acute otitis media: a systematic review and meta-analysis

AIM

To synthesise the evidence on the association between duration and exclusivity of breastfeeding and the risk of acute otitis media (AOM).

METHODS

Systematic review and meta-analysis following searching of PubMed, CINAHL and EMBASE electronic databases.

RESULTS

Twenty-four studies, all from the USA or Europe, met the inclusion criteria. In the pooled analyses, any form of breastfeeding was found to be protective for AOM in the first 2 years of life. Exclusive breastfeeding for the first 6 months was associated with the greatest protection (OR 0.57 95% CI 0.44, 0.75), followed by 'more vs less' breastfeeding (OR 0.67; 0.59, 0.76) and 'ever vs never' breastfeeding (OR 0.67; 0.56, 0.80).

CONCLUSION

This systematic review and meta-analysis provides evidence that breastfeeding protects against AOM until 2 years of age, but protection is greater for exclusive breastfeeding and breastfeeding of longer duration. Exclusive breastfeeding during the first 6 months was associated with around a 43% reduction in ever having AOM in the first 2 years of life. After 2 years of age, there is no evidence that breastfeeding protects against AOM; however, there were few studies and the evidence quality was low.

Supporting Breastfeeding Establishment among Socially Disadvantaged Women: A Meta-Synthesis

BACKGROUND

Many women from socially disadvantaged groups discontinue breastfeeding in the early postnatal period before lactation is fully established. This suggests that existing health service practices do not adequately meet the breastfeeding support needs of this population. The aim of this meta-synthesis is to review the literature exploring how women from socioeconomically deprived backgrounds experience breastfeeding establishment and to identify factors associated with supportive practice.

METHODS

The meta-synthesis includes qualitative studies exploring the perception of women from disadvantaged groups of in-hospital and professionally led interventions to support the establishment of breastfeeding. Searches were conducted for studies published between 1992 and 2013; after critical appraisal, eight studies were retained.

RESULTS

Three overarching themes of the influences on maternal perception of the efficacy of breastfeeding support were identified. These included practical skill and knowledge of the breastfeeding process, the influence of psychological factors on perceived breastfeeding ability, and the provision of a person-centered approach to infant feeding support.

CONCLUSIONS

The findings illustrate that the factors associated with supportive breastfeeding practice are extensive, complex, and interrelated. Strategies which enable mothers to gain confidence in their ability to successfully breastfeed by acquiring technical expertise, which offer positive encouragement, and which are culturally specific are more likely to be perceived as supportive by women from socially disadvantaged groups.

Effect of feeding pattern on infant illness in Chinese cities

OBJECTIVE

To investigate the effect of different feeding patterns on the occurrence of diseases among infants.

DESIGN

Data on socio-economic status, feeding patterns before 6 months (exclusive breast-feeding (EBF); mixed feeding with breast milk and formula (MBF); exclusive formula-feeding (EFF)) and illness of infants were collected via face-to-face interviews. The proportions of infants who had ever been ill or hospitalized and their potential influence factors were investigated.

SETTING

Eight large cities in China.

SUBJECTS

Infants (n 1654) aged 0-11·9 months were recruited from hospitals.

RESULTS

For infants aged 0-2·9 months, the percentage who had been ill was 19·2%, 24·1% and 26·3% among the EBF, MBF and EFF groups, respectively. For those aged 3-5·9 and 6-11·9 months, the corresponding percentages were 41·6%, 45·6% and 51·0%, and 67·0%, 73·4% and 67·7%. Respiratory disease was the most common reported illness and cause of hospitalization. The risks of having (total) illness, diarrhoea and respiratory disease increased significantly with age, but not allergic disease. Compared with EBF, MBF and EFF infants had significantly higher risks of having illnesses except for allergic disease, and feeding patterns were not related to hospitalization. Low birth weight, middle family income and low level of mother's education also increased the risk of illness.

CONCLUSIONS

A protective effect of EBF against total illness in urban Chinese infants was found. An increasing trend with age was observed among the percentages of infants who had been ill or had diarrhoea or respiratory disease, but not allergic disease.

Global infant formula: monitoring and regulating the impacts to protect human health

Worldwide promotion of infant formula and other commercial baby foods is leading to increased use of these products, raising concerns about their impact on the health of infants. These products are made and marketed through a global system that extends beyond the control of separate nations. As the industry is increasingly globalized, there is a growing need for guidance, monitoring, and regulation. This study suggests a path toward achieving better control of infant formula and other baby foods to ensure that infants and young children everywhere are well nourished. The negotiation of a new Optional Protocol on Children's Nutrition, to be linked to the most relevant human rights treaty, the Convention on the Rights of the Child, would bring the major issues relating to infant formula and other baby foods to the attention of the global community and all national governments.

Early additional food and fluids for healthy breastfed full-term infants

BACKGROUND

Widespread recommendations from health organisations encourage exclusive breastfeeding for six months. However, the addition of other fluids or foods before six months is common in many countries and communities. This practice suggests perceived benefits of early supplementation or lack of awareness of the possible risks.

OBJECTIVES

To assess the benefits and harms of supplementation for full-term healthy breastfed infants and to examine the timing and type of supplementation.

SEARCH METHODS

We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (21 March 2014) and reference lists of all relevant retrieved papers.

SELECTION CRITERIA

Randomised or quasi-randomised controlled trials in infants under six months of age comparing exclusive breastfeeding versus breastfeeding with any additional food or fluids.

DATA COLLECTION AND ANALYSIS

Two review authors independently selected the trials, extracted data and assessed risk of bias.

MAIN RESULTS

We included eight trials (984 randomised infants/mothers). Six trials (n = 613 analysed) provided data on outcomes of interest to this review. The variation in outcome measures and time points made it difficult to pool results from trials. Data could only be combined in a meta-analysis for one secondary outcome (weight change). The trials that provided outcome data compared exclusively breastfed infants with breastfed infants who were allowed additional nutrients in the form of artificial milk, glucose, water or solid foods.In relation to the majority of the older trials, the description of study methods was inadequate to assess the risk of bias. The two more recent trials, were found to be at low risk of bias for selection and detection bias. The overall quality of the evidence for the main comparison was low.In one trial (170 infants) comparing exclusively breastfeeding infants with infants who were allowed additional glucose water, there was a significant difference favouring exclusive breastfeeding up to and including week 20 (risk ratio (RR) 1.45, 95% confidence interval (CI) 1.05 to 1.99), with more infants in the exclusive breastfed group still exclusively breastfeeding. Conversely in one small trial (39 infants) comparing exclusive breastfed infants with non-exclusive breastfed infants who were provided with artificial milk, fewer infants in the exclusive breastfed group were exclusively breastfeeding at one week (RR 0.58, 95% CI 0.37 to 0.92) and at three months (RR 0.44, 95% CI 0.26 to 0.76) and there was no significant difference in the proportion of infants continuing any breastfeeding at three months between groups (RR 0.76, 95% CI 0.56 to 1.03).For infant morbidity (six trials), one newborn trial (170 infants) found a statistically, but not clinically, significant difference in temperature at 72 hours (mean difference (MD) 0.10 degrees, 95% CI 0.01 to 0.19), and that serum glucose levels were higher in glucose supplemented infants in the first 24 hours, though not at 48 hours (MD -0.24 mmol/L, 95% CI -0.51 to 0.03). Weight loss was also higher (grams) in infants at six, 12, 24 and 48 hours of life in the exclusively breastfed infants compared to those who received additional glucose water (MD 7.00 g, 95% CI 0.76 to 13.24; MD 11.50 g, 95% CI 1.71 to 21.29; MD 13.40 g, 95% CI 0.43 to 26.37; MD 32.50 g, 95% CI 12.91 to 52.09), but no difference between groups was observed at 72 hours of life. In another trial (47 infants analysed), we found no significant difference in weight loss between the exclusively breastfeeding group and the group allowed either water or glucose water on either day three or day five (MD 1.03%, 95% CI -0.18 to 2.24) and (MD 0.20%, 95% CI -1.18 to 1.58).Three trials with four- to six-month-old infants provided no evidence to support any benefit from the addition of complementary foods at four months versus exclusive breastfeeding to six months nor any risks related either morbidity or weight change (or both).None of the trials reported on the remaining primary outcomes, infant mortality or physiological jaundice.

AUTHORS' CONCLUSIONS

We were unable to fully assess the benefits or harms of supplementation or to determine the impact from timing and type of supplementation. We found no evidence of benefit to newborn infants and possible negative effects on the duration of breastfeeding from the brief use of additional water or glucose water, and the quality of the evidence from a small pilot study on formula supplementation was insufficient to suggest a change in practice away from exclusive breastfeeding. For infants at four to six months, we found no evidence of benefit from additional foods nor any risks related to morbidity or weight change. Future studies should examine the longer-term effects on infants and mothers, though randomising infants to receive supplements without medical need may be problematic.We found no evidence for disagreement with the recommendation of international health associations that exclusive breastfeeding should be recommended for healthy infants for the first six months.

When 'breast' is no longer 'best': Post-partum constructions of infant-feeding in the hospital

In this paper, we focus on the initial experiences of breastfeeding among mothers to examine the ways that infant-feeding is socially constructed in the hospital. Data comes from 51 in-depth interviews with 17 first-time mothers in Ontario, Canada. Analysis reveals 52 magnified moments that we categorize as Successful, Ultimately Successful and Unsuccessful. For mothers who describe Successful and Ultimately Successful moments, breastfeeding is understood as physiologically natural, and as something they must learn to do. Unsuccessful moments reveal that when health care providers interpret breastfeeding as not working, the breastfeeding discourse frequently shifts to one that incorporates formula as the means to achieve optimal infant health. In other words, in the hospital 'breast is best' holds true when breast 'works', otherwise mothers are often directed to give their babies formula. While formula appears to be compulsory in these moments, it is not typically understood as a "good or best" infant-feeding practice. For mothers in this situation, the shift from breast to formula is experienced as failures or evidence of inadequacy in their mothering. Paradoxically, our results suggest that formula may not, in and of itself, pose a threat to mothers' overall continued practice of breastfeeding. It appears that Successful and Ultimately Successful moments coincide with the current dominant 'breast is best' understanding. Unsuccessful moments, conversely, are insightful because they reveal when and how hospital practices disrupt mothers' understanding of their bodies and their role in providing the 'best' form of infant food. The implications for policy and practice are discussed.

Dispelling myths to support breastfeeding in women with postpartum depression

Increasing attention is being paid to the possible connection between infant feeding practices and postpartum depression. Nurses caring for women and their families in the postpartum period might wonder how to best support the breastfeeding relationship if a woman has a history of depression. Using evidence from the scientific literature, this article dispels some myths regarding breastfeeding and depression, and provides suggested dialogue nurses can use when counseling women about depression and breastfeeding.

Formula-feeding is associated with shift towards Th1 cytokines

PURPOSE

Breast-feeding (BF) versus formula-feeding (FF) may be a factor for the development and differentiation of T-cell subsets and cytokine production in infancy and childhood. We therefore investigated T-cell subpopulations and their cytokine production by flow cytometry as well as cytokine levels in serum samples in breast-fed versus formula-fed infants and children.

METHODS

Heparinised blood was taken from 191 healthy infants and children. Peripheral blood mononuclear cells were stimulated with phorbol-mystriate-acetate and ionomycin in the presence of brefeldin. T-cell subsets and cytokines were determined by flow cytometry. Furthermore, serum concentrations of IFNγ and IL4 were measured using ELISA. An IFNγ/IL4 ratio was calculated to estimate the Th1/Th2 balance.

RESULTS

Children who were formula-fed show higher numbers of memory T and T helper cells. After stimulation, the number of IFNγ-positive memory T-cells was increased up to the age of 6 years. Breast-fed infants show higher percentages of IL4-positive T helper cells. At ELISA determination, formula-fed children showed higher IFNγ levels than breast-fed children, while IL4 levels did not differ. The IFNγ/IL4 ratio (FACS and ELISA) was elevated in formula-fed infants and children.

CONCLUSION

This systematic analysis of cytokine profiles during childhood in dependency of BF allows a better understanding of immune maturation and demonstrates the influence of early feeding on immune function throughout childhood, even after cessation of BF. FF induces a shift towards Th1 cytokines in children. This may have an influence on the development of autoimmune disease in later life.

Applying a knowledge translation model to the uptake of the Baby Friendly Health Initiative in the Australian health care system

BACKGROUND

The Baby Friendly Hospital Initiative is a global, evidence-based, public health initiative. The evidence underpinning the Initiative supports practices promoting the initiation and maintenance of breastfeeding and encourages women's informed infant feeding decisions. In Australia, where the Initiative is known as the Baby Friendly Health Initiative (BFHI) the translation of evidence into practice has not been uniform, as demonstrated by a varying number of maternity facilities in each State and Territory currently accredited as 'baby friendly'. This variance has persisted regardless of BFHI implementation in Australia gaining 'in principle' support at a national and governmental level as well as inclusion in health policy in several states. There are many stakeholders that exert an influence on policy development and health care practices.

AIM

Identify a theory and model to examine where and how barriers occur in the gap between evidence and practice in the uptake of the BFHI in Australia.

RESULTS

Knowledge translation theory and the research to practice pipeline model are used to examine the identified barriers to BFHI implementation and accreditation in Australia.

CONCLUSION

Australian and international studies have identified similar issues that have either enabled implementation of the BFHI or acted as a barrier. Knowledge translation theory and the research to practice pipeline model is of practical value to examine barriers. Recommendations in the form of specific targeted strategies to facilitate knowledge transfer and supportive practices into the Australian health care system and current midwifery practice are included.

Do breastfeeding and bottle feeding influence occlusal parameters?

OBJECTIVE

A study was made of the influence of breastfeeding and bottle feeding on development of the dental arches and occlusion in an infant population.

SUBJECTS AND METHODS

In total, 298 infants (163 girls and 135 boys) were selected from a series of 1,643 preschool children in Seville, Spain, evaluating the type of feeding received after birth (breastfeeding only or bottle feeding only), the duration of such feeding, and its influence upon the parameters that define occlusion of the dental arches. The study comprised a full exploration of the stomatognathic system of the infants and a questionnaire for the parents. SPSS Statistical Package software (SPSS, Inc., Chicago, IL) was used to analyze the results.

RESULTS

In total, 109 children were exclusively breastfed (36.6%) for an average of 6.8±5.8 months, whereas 189 children were exclusively bottle fed (63.4%) for an average of 17.99±11.5 months. On comparing the occlusal parameters of the two groups, the most beneficial effects (straight terminal plane, canine class I relationship, diastemas, and primate spaces) corresponded to the infants who were breastfed.

CONCLUSIONS

Breastfed infants show better development of the dental arches and a lesser incidence of dental occlusion disorders than bottle-fed infants.

Breastfeeding knowledge, attitudes, prior exposure, and intent among undergraduate students

BACKGROUND

Understanding breastfeeding knowledge, attitudes, and exposures among nonpregnant youth who are likely to be future parents may provide significant pathways to successfully increasing breastfeeding as the normal, accepted way of feeding infants. However, based on a recent review of the literature, only 3 studies have assessed these factors in nonpregnant, young adults in the United States in the past 10 years.

OBJECTIVE

The objective of this study was to gather more recent data regarding breastfeeding knowledge, attitudes, and prior exposure among undergraduate university students.

METHODS

This was a cross-sectional survey, conducted in November 2010. A convenience sample, consisting of undergraduates in attendance in 2 sections of an introductory nutrition class at a large research university, was used for this project (N = 248).

RESULTS

Breastfeeding knowledge was relatively good. However, overall breastfeeding attitudes were more neutral, which appeared to be explained by the belief that breastfeeding is painful, restrictive, and inconvenient, both in general and specifically for the working mother. Though support for breastfeeding in public was low, men were significantly less likely than women to believe it to be embarrassing or unacceptable. In addition, breastfeeding attitudes were more positive among older students and those who were breastfed as infants. Those who were breastfed as infants were also significantly more likely to intend to breastfeed future children.

CONCLUSIONS

Though this sample indicates good breastfeeding knowledge, attitudes were more neutral, and support for breastfeeding in public appears low. This finding is contradictory and warrants further exploration.

Infant feeding practices and prevalence of obesity in eight European countries - the IDEFICS study

OBJECTIVE

To assess the association between exclusive breast-feeding and childhood overweight.

DESIGN

Cross-sectional data are from the baseline survey of the longitudinal cohort study IDEFICS. Exclusive rather than partial breast-feeding is the focus of the study due to the theoretical relationship between exclusive breast-feeding and development of dietary self-regulation. Children's measured heights and weights were used to calculate weight status, while waist-to-height ratio (WtHR) and skinfold measures were examined as alternative indicators of adiposity and fat patterning.

SETTING

Examination centres in eight European countries (Italy, Estonia, Cyprus, Belgium, Sweden, Hungary, Germany and Spain).

SUBJECTS

The analysis included 14 726 children aged 2-9 years for whom early feeding practices were reported by parents in standardized questionnaires.

RESULTS

After controlling for education, income and other potential confounders, breast-feeding exclusively for 4-6 months was protective of overweight (including obesity) when compared with children never exclusively breast-fed (OR = 0·73; 95 % CI 0·63, 0·85) across all measures of overweight. Exclusively breast-feeding for 6 months offered slightly more protection than for 4 and 5 months combined (OR = 0·71; 95 % CI 0·58, 0·85). The associations could not be explained by socio-economic characteristics or maternal overweight.

CONCLUSIONS

This multi-country investigation indicated that exclusive breast-feeding for 4-6 months may confer protection against overweight in addition to other known benefits. There was no demonstrated benefit of exclusive breast-feeding for more than 6 months or combination feeding for any duration across all measures of overweight examined.

Impact of a strategy to prevent the introduction of non-breast milk and complementary foods during the first 6 months of life: a randomized clinical trial with adolescent mothers and grandmothers

INTRODUCTION

Although the disadvantages of introducing non-breast milk and the early introduction of complementary foods are known, such practices are common worldwide.

OBJECTIVE

To evaluate the efficacy of counseling about breastfeeding and complementary feeding in preventing the introduction of non-breast milk and complementary foods in the first 6 months.

METHODS

This randomized clinical trial enrolled 323 adolescent mothers and their newborns and 169 maternal grandmothers; 163 mothers and 88 grandmothers received five counseling sessions on breastfeeding while in the hospital and at 7, 15, 30, and 60 days, and one session on complementary feeding at 120 days. Data about infant feeding were collected monthly. The impact was evaluated by comparing the Kaplan-Meier survival curves for the time of introduction of non-breast milk and complementary foods of the control and intervention groups. Median time of introduction of milk was calculated in the two groups.

RESULTS

The survival curves showed that the intervention postponed the introduction of non-breast milk and complementary foods. At 4 months, 41% (95% CI, 32.8-49.2) of the infants in the control group received complementary foods in comparison to 22.8% (95% CI, 15.9-29.7) of the intervention group. Counseling postponed the introduction of non-breast milk, which occurred at 95 days (95% CI, 8.7-111.3) in the control group and at 153 days (95% CI, 114.6-191.4) in the intervention group.

CONCLUSIONS

Counseling sessions on infant's first 4 months were an efficacious strategy to prevent the introduction of non-breast milk and complementary foods in the 6 months of life.

Breastfeeding support in child care: an international comparison of findings from Australia and the United States

INTRODUCTION

Many women in industrialized countries return to work while their children are infants. This is often associated with decreased breastfeeding duration or exclusivity. In order to better understand the breastfeeding support activities in childcare settings, studies were undertaken in settings with very different levels of infant mortality, breastfeeding, and breastfeeding support: Adelaide, Australia, and Wake County, North Carolina. The researchers collaborated to explore, contrast, and compare their baseline data.

METHODS

Available data on breastfeeding rates and infant mortality rates were explored for the two settings. In addition, the two childcare datasets were explored for common questions, and descriptive and χ(2) analyses were carried out.

RESULTS

Similarities were found between the response from childcare settings providers in Australia and the United States. Rates of having at least one breastfeeding infant (70.6% vs. 66.3%), a place to breastfeed (90.7% vs. 95%), and a refrigerator for storage (100% vs. 100%) were similar for Adelaide and Wake County, respectively. Qualitative data from Adelaide also mirrored Wake County data in that providers in neither setting were actively promoting breastfeeding. However, the Adelaide data reflected significantly higher rates of encouragement (95.3% vs. 21.7%), written policy (77.8% vs. 20.8%), resource/materials distribution (76.6% vs. 1% and 93.8% vs. 17%), and training (44.4% vs. 13.9%).

CONCLUSIONS

Childcare practices may reflect the environment of support, or lack thereof, for breastfeeding in the society as a whole. The similarities and differences seen in these settings may reflect both official guidance as well as the breastfeeding environment. There is much work to be done in the United States to come up to the same level of support for breastfeeding in child care and in other programs as is seen in Australia.

Breastfeeding and otitis media: a review of recent evidence

Human milk provides infants with antimicrobial, anti-inflammatory, and immunomodulatory agents that contribute to optimal immune system function. The act of breastfeeding allows important bacterial and hormonal interactions between the mother and baby and impacts the mouth, tongue, swallow, and eustachian tubes. Previous meta-analyses have shown that lack of breastfeeding and less intensive patterns of breastfeeding are associated with increased risk of acute otitis media, one of the most common infections of childhood. A review of epidemiologic studies indicates that the introduction of infant formula in the first 6 months of life is associated with increased incidence of acute otitis media in early-childhood. More recent research raises the issues of how long this increased risk persists, and whether lack of breastfeeding is associated with diagnosis of otitis media with effusion. However, many studies suffer from lack of study of younger populations and imprecise definitions of infant feeding patterns. These findings suggest that measures of the association between breastfeeding history and otitis media risk are sensitive to the definition of breastfeeding used; future research is needed with more precise and consistent definitions of feeding, with attention to distinctions between direct breastfeeding and human milk feeding by bottle.

Risk factors for failing the hearing screen due to otitis media in Dutch infants

Hearing loss from otitis media (OM) can affect young children's development. Some children with persistent OM-related hearing loss and associated problems can benefit from treatment, but researchers and clinicians are still unclear on how to identify them best. The present study aims to determine which factors are most related to the hearing loss in OM, as a first step towards an effective case-finding instrument for detecting infants with persistent OM-related hearing loss. The full PEPPER ('Persistent Ear Problems, Providing Evidence for Referral') item pool includes a wide range of risk factors for OM in a single questionnaire, and is easily completed by parents or guardians. The questionnaire was sent to all children invited for the universal hearing screen at age 9 months in Limburg, The Netherlands. Repeatedly failing of the hearing screen was used as outcome marker indicative of OM-related chronic hearing loss. Univariate analyses were conducted to determine statistically significant risk factors predicting 'fail' cases at this hearing screen. Five items were found as individually predictive of hearing screen failure and subsequent referral: 'having severe cold symptoms', 'attending day care with >4 children', 'having siblings', 'severe nasal congestion' and 'male gender'. Suitably worded parental questions document risk factors for OM-related hearing loss in infants, broadly consistent with past general literature on OM risk factors, but more focused. The findings justify further optimising and evaluation of an additive or multiplicative combination of these questions as a means for selecting and routing an infant with diagnosed or suspected OM to further care.

What predicts intent to breastfeed exclusively? Breastfeeding knowledge, attitudes, and beliefs in a diverse urban population

BACKGROUND

Maternal knowledge and comfort with breastfeeding affect prenatal feeding intentions, and these intentions are strong predictors of feeding outcomes. However, predictors of exclusive breastfeeding intention have not been well characterized.

METHODS

We measured the association between intentions to exclusively breastfeed and knowledge of infant health benefits, feeding guidelines, and comfort related to breastfeeding in social settings. Participants were lower-income, ethnically diverse women in two randomized, controlled trials of breastfeeding support. We compared results with data from the national Infant Feeding Practices Study II.

RESULTS

Among 883 women in our trials, exclusive breastfeeding, mixed feeding, and exclusive formula feeding intentions were 45.9%, 46.1%, and 8.0%, respectively. In multivariate-adjusted models, women who disagreed that "Infant formula is as good as breastmilk" were more likely to intend exclusive breastfeeding versus exclusive formula feeding (odds ratio 3.44, 95% confidence interval 1.80-6.59) compared with women who agreed with this statement. Increasing levels of agreement that breastfed infants were less likely to develop ear infections, respiratory infections, diarrhea, and obesity were positively associated with intentions to exclusively breastfeed (p for trend < 0.001 for all). Compared with the national sample, our study participants were more likely to agree with all of these statements. Women who felt comfortable breastfeeding in public intended to exclusive breastfeed for 0.84 month longer (95% confidence interval 0.41-1.28) than those who felt uncomfortable.

CONCLUSIONS

Maternal knowledge about infant health benefits, as well as comfort with breastfeeding in social settings, was directly related to intention to exclusively breastfeed. Prenatal interventions that address these issues may increase exclusive breastfeeding intention and duration.

Impact of baby-friendly hospital practices on breastfeeding in Hong Kong

BACKGROUND

The World Health Organization (WHO) developed the Baby-Friendly Hospital Initiative to improve hospital maternity care practices that support breastfeeding. In Hong Kong, although no hospitals have yet received the Baby-Friendly status, efforts have been made to improve breastfeeding support. The aim of this study was to examine the impact of Baby-Friendly hospital practices on breastfeeding duration.

METHODS

A sample of 1,242 breastfeeding mother-infant pairs was recruited from four public hospitals in Hong Kong and followed up prospectively for up to 12 months. The primary outcome variable was defined as breastfeeding for 8 weeks or less. Predictor variables included six Baby-Friendly practices: breastfeeding initiation within 1 hour of birth, exclusive breastfeeding while in hospital, rooming-in, breastfeeding on demand, no pacifiers or artificial nipples, and information on breastfeeding support groups provided on discharge.

RESULTS

Only 46.6 percent of women breastfed for more than 8 weeks, and only 4.8 percent of mothers experienced all six Baby-Friendly practices. After controlling for all other Baby-Friendly practices and possible confounding variables, exclusive breastfeeding while in hospital was protective against early breastfeeding cessation (OR: 0.61; 95% CI: 0.42-0.88). Compared with mothers who experienced all six Baby-Friendly practices, those who experienced one or fewer Baby-Friendly practices were almost three times more likely to discontinue breastfeeding (OR: 3.13; 95% CI: 1.41-6.95).

CONCLUSIONS

Greater exposure to Baby-Friendly practices would substantially increase new mothers' chances of breastfeeding beyond 8 weeks postpartum. To further improve maternity care practices in hospitals, institutional and administrative support are required to ensure all mothers receive adequate breastfeeding support in accordance with WHO guidelines.

An exploration of the attitudes and experiences of mothers in the United Kingdom who chose to breastfeed exclusively for 6 months postpartum

BACKGROUND

Levels of exclusive breastfeeding are negligible in the United Kingdom despite World Health Organization recommendations to practice exclusive breastfeeding for the first 6 months postpartum. Although numerous studies have explored the reasons behind low levels of breastfeeding, few have examined the behaviors of women who do breastfeed successfully. However, understanding the influences upon the decision to breastfeed exclusively is important in supporting women to continue breastfeeding.

METHODS

In the current study, 33 women with an infant 6-12 months old who exclusively breastfed for the first 6 months postpartum took part in an interview to explore their motivation and experiences while breastfeeding. The interview explored issues such as sources of support, difficulties, and familial and peer behavior.

RESULTS

Mothers reported high levels of confidence and determination in their decision despite difficulties in reaching their goal and discussed a range of techniques they adopted to overcome issues faced.

CONCLUSIONS

Ingrained and strong beliefs that their choice of feeding method was the normal and healthiest way to feed an infant enabled mothers to overcome problems and continue breastfeeding.

Current knowledge and future research on infant feeding in the context of HIV: basic, clinical, behavioral, and programmatic perspectives

In 2008, between 129,000 and 194,000 of the 430,000 pediatric HIV infections worldwide were attributable to breastfeeding. Yet in many settings, the health, economic, and social consequences of not breastfeeding would have dire consequences for many more children. In the first part of this review we provide an overview of current knowledge about infant feeding in the context of HIV. Namely, we describe the benefits and risks of breastmilk, the evolution of recommended infant feeding modalities in high-income and low-income countries in the last two decades, and contextualize the recently revised guidelines for infant feeding in the context of HIV current knowledge. In the second section, we suggest areas for future research on the postnatal prevention of mother-to-child transmission of HIV (PMTCT) in developing and industrialized countries. We suggest two shifts in perspective. The first is to evaluate PMTCT interventions more holistically, to include the psychosocial and economic consequences as well as the biomedical ones. The second shift in perspective should be one that contextualizes postnatal PMTCT efforts in the cascade of maternal health services. We conclude by discussing basic, clinical, behavioral, and programmatic research questions pertaining to a number of PMTCT efforts, including extended postnatal ARV prophylaxis, exclusive breastfeeding promotion, counseling, breast milk pasteurization, breast milk banking, novel techniques for making breast milk safer, and optimal breastfeeding practices. We believe the research efforts outlined here will maximize the number of healthy, thriving, HIV-free children around the world.