Is breast feeding beneficial in the UK? Statement of the standing Committee on Nutrition of the British Paediatric Association

Protective Effect of Breastmilk against Infection

There is strong evidence that breastfeeding protects infants against infection in environments where clean water cannot be guaranteed, leading to substantial reductions in morbidity and mortality. This is particularly evident in the protection against gastrointestinal disease, although there is also evidence for protection against respiratory infection and otitis media. The evidence for a protective effect of breastfeeding against infection in developed countries has been more controversial, with criticisms being levelled at the methodology of many studies. Evidence is presented from a study in a developed country that met key methodological criteria to show that breastfeeding for 13 weeks offers substantial and continuing protection against gastrointestinal illness. Smaller, but still potentially important, protective effects against respiratory illness also occur. The results add strong support to policies that promote breastfeeding in both developed and developing countries.

The influence of psychosocial factors on the duration of breastfeeding

Aim: A study was undertaken to examine to what extent psychosocial factors are related to the length of breastfeeding. Methods: A cohort of Danish mothers giving birth to a single child was followed up for four months. Information on mother and baby including psychosocial variables was obtained from a self-report questionnaire. Breastfeeding status was subsequently monitored by a health visitor. Results: A total of 471 (88%) mothers participated, 98.7 % initiated breastfeeding and after four months 277 (59%) were still exclusive breastfeeding; 99 mothers, 51% of those who stopped, stopped within the first five weeks. In Cox regression analyses the duration of breastfeeding showed a positive association with mother's schooling ( p=0.002), her intention to breastfeed ( p=0.001), previous experience with breastfeeding ( p<0.001), self-efficacy with respect to breastfeeding ( p<0.001), her confidence in breastfeeding ( p=0.012) and knowledge about breastfeeding ( p=0.001). The effect of the mother's knowledge depended on the parity of the child. Among primiparous mothers high knowledge was associated with long duration of breastfeeding, but this association was not found among the multiparous. Conclusions: To help the mothers who would like to breastfeed their baby, we must improve our ability to identify mothers at risk of early cessation. Mother's schooling, her intention, self-efficacy and earlier breastfeeding experience can be used as early predictors. An intervention should aim at improving the self-efficacy and resources of these mothers, with a focus on practical knowledge. The first five weeks, when the largest proportion of the cessations occurred, require special attention.

Lack of Breastfeeding: A Potential Risk Factor in the Multifactorial Genesis of Borderline Personality Disorder and Impaired Maternal Bonding

Borderline personality disorder (BPD) is characterized by a pattern of intense but unstable interpersonal relationships. These interpersonal dysfunctions may originate from impaired bonding and attachment that is determined during early life. Remarkably, it has been reported that the quality of mother-infant relationship is influenced by the feeding mode. Thus, bottle feeding instead of breastfeeding and possible lack of maternal bonding-related behavior may increase the risk for later psychopathology and attachment problems as seen in BPD. A total of 100 BPD patients and 100 matched healthy controls underwent semistructured interviews, based on retrospective information about early risk factors and breastfeeding during infancy. The authors' analyses revealed that BPD patients were significantly less breastfed compared to healthy controls (no breastfeeding in BPD: 42.4%; no breastfeeding in controls: 18.2%; p < .001). The BPD diagnosis was significantly predicted by the variable "no breastfeeding" (p < .001; odds ratio [OR] = 3.32; confidence interval [CI] [1.74, 6.34]), even after adjustment for childhood trauma and several confounding factors (p = .001). The variable "no breastfeeding" accounts for 9.1% of the variance of the BPD diagnosis and is associated with low perceived maternal bonding (p = .006). Breastfeeding may act as an early indicator of the mother-infant relationship that seems to be relevant for bonding and attachment later in life.

Infant feeding attitudes and knowledge among socioeconomically disadvantaged women in Glasgow

OBJECTIVES

This study: (1) investigated infant feeding attitudes and knowledge among socioeconomically disadvantaged mothers in an urban community with historically low breastfeeding rates, (2) examined the influence of women's social networks on infant feeding attitudes and decisions, and (3) validated a measure of infant feeding attitudes and knowledge in this population (Iowa Infant Feeding Attitude Scale, IIFAS).

METHODS

Women attending a prenatal clinic (n=49) reported on: (1) demographics, (2) infant feeding attitudes and knowledge (IIFAS), (3) feeding intent, (4) opinions about breastfeeding in public, and (5) social networks. Feeding method at discharge was abstracted from hospital charts. Social network members (n=47) identified by the prenatal sample completed interviews covering: (1) demographics, (2) infant feeding attitudes and knowledge (IIFAS), (3) prior infant feeding methods and recommendations, and (4) opinions about breastfeeding in public.

RESULTS

Mean IIFAS scores were low in both groups, indicating neutral to negative breastfeeding attitudes; mothers' scores were lower than social network members. Higher maternal IIFAS score was significantly associated with intended and actual breastfeeding. A social network positive towards breastfeeding was significantly associated with mothers' positive attitude towards breastfeeding. Both mothers and social network members support breastfeeding in public. IIFAS internal consistency was robust for both mothers and social network members. Predictive validity was demonstrated by significant positive association between score and intended and actual feeding methods.

CONCLUSIONS

Knowledge and attitude predict breastfeeding initiation in this population. Social network members may influence mothers' feeding choices. This research is important because attitudes and knowledge derived from the IIFAS can be used to develop and evaluate breastfeeding promotion programs.

Rethinking research in breast-feeding: a critique of the evidence base identified in a systematic review of interventions to promote and support breast-feeding

Objective

To appraise critically the relevance and value of the evidence base to promote and support the duration of breast-feeding, with a specific focus on disadvantaged groups.

Design

A systematic review was conducted of intervention studies relevant to enhancing the duration of breast-feeding; topics included public health, public policy, clinical issues, and education, training and practice change. A systematic search was conducted. Eighty studies met the inclusion criteria. Data were systematically extracted and analysed. Full results and recommendations are reported elsewhere. Here a critique of the evidence base – topics, quality and gaps – is reported.

Results

Many studies were substantially methodologically flawed, with problems including small sample sizes, inconsistent definitions of breast-feeding and lack of appropriate outcomes. Few were based on relevant theory. Only a small number of included studies (10%) were conducted in the UK. Very few targeted disadvantaged subgroups of women. No studies of policy initiatives or of community interventions were identified. There were virtually no robust studies of interventions to prevent and treat common clinical problems, or of strategies related to women's health issues. Studies of health professional education and practice change were limited. Cost-effectiveness studies were rare.

Conclusions

Policy goals both in the UK and internationally support exclusive breast-feeding until 6 months of age. The evidence base to enable women to continue to breast-feed needs to be strengthened to include robust evaluations of policies and practices related to breast-feeding; a step change is needed in the quality and quantity of research funded.

Racial/ethnic differences in breastfeeding initiation and continuation in the United kingdom and comparison with findings in the United States

OBJECTIVE

Patterns of breastfeeding vary considerably across different racial/ethnic groups; however, little is known about factors that might explain differences across and within different racial/ethnic groups. Here we examine patterns of breastfeeding initiation and continuation among a racially/ethnically diverse sample of new mothers and compare this with patterns seen in the United States. The effects of demographic, social, economic, and cultural factors on racial/ethnic differences in breastfeeding practices are assessed.

METHODS

The sample includes all singleton infants whose mothers participated in the first survey of the United Kingdom Millennium Cohort Study. Missing data reduced the sample to 17,474 (96%) infants with complete data.

RESULTS

After adjustment for demographic, economic, and psychosocial factors, logistic regression models showed that Indian, Pakistani, Bangladeshi, black Caribbean, and black African mothers were more likely to initiate breastfeeding compared with white mothers. Further adjustment for a marker of cultural tradition attenuated these relationships, but all remained statistically significant, suggesting that some of the difference was a consequence of cultural factors. After adjustment for demographic, economic, and psychosocial factors, Indian, Pakistani, Bangladeshi, black Caribbean, and black African mothers were more likely to continue breastfeeding at 3 months compared with white mothers. Additional adjustment for a marker of cultural tradition attenuated the relationship for Indian, Pakistani, Bangladeshi, and black African mothers, but all remained statistically significant. Models run for breastfeeding continuation at 4 and 6 months were consistent with these results.

CONCLUSIONS

We have shown that in the United Kingdom the highest breastfeeding rates are among black and Asian mothers, which is in stark contrast to patterns in the United States, where the lowest rate is seen among non-Hispanic black mothers. The contrasting racial/ethnic patterns of breastfeeding in the United Kingdom and United States necessitate very different public health approaches to reach national targets on breastfeeding and reduce health disparities. Those who implement future policies aimed at increasing breastfeeding rates need to pay attention to different social, economic, and cultural profiles of all racial/ethnic groups.

Developing practice in breastfeeding

This paper reports on an approach to practice development in breastfeeding as part of a national programme of work to address inequalities in maternal and child nutrition. The production and dissemination of evidence and guidelines is necessary but not sufficient on its own to effect change in practice, particularly when dealing with complex public health issues. In the case of breastfeeding, review evidence and national guidance have shown that multifaceted changes are essential if policy aspirations are to be realized. The objectives of the programme described here were to (1) inform and enable practice development in breastfeeding in low-income areas; (2) evaluate the impact of approaches used; and (3) develop robust approaches and appropriate material for use nationally. A conceptual framework was established, and a six-stage process is outlined. The recruitment of four sentinel sites across whole health economies, involving professionals and the voluntary sector, was an essential component of the programme. The strength of the model is that it provides a structured, cross-sectoral approach to practice development in public health. A key challenge is to identify whose responsibility it is to resource practice development when a number of disciplines and sectors are involved. This question needs to be addressed if public health guidance is to be of sustained benefit.

The effect of health visitors on breastfeeding in Glasgow

BACKGROUND

The UNICEF Baby Friendly Initiative includes a community component to help women who want to breastfeed. This study aimed to document the health visitor role in promoting and supporting breastfeeding in Glasgow during 2000 and the effect it had on breastfeeding rates.

METHODS

Glasgow, UK, has a population of 906,000, with approximately 10,000 births per year. Glasgow has high levels of material deprivation and traditionally low breastfeeding rates. This was a cross-sectional study in January 2000 which used a postal questionnaire to document individual health visitors' interventions, activities and attitude towards breastfeeding. Infant's breastfeeding data collected routinely by the Child Health Surveillance programme from 1 August 1998 to 28 February 1999 was directly matched with interventions, activities and attitudes reported by their own health visitor.

RESULTS

146/216 (68%) health visitors completed and returned the questionnaire. 5401 child health records were eligible and 3,294 (58.2%) could be matched with health visitors who returned questionnaires. 2145 infants had the first visit from 8 to 20 days of age and the second 3 to 7 weeks later. At the first postnatal visit 835 of 2145 (39%) infants were breastfed (median age of 13 days) and 646 (30%) continued to breastfeed at the second visit (median age 35 days). Infants being breastfed at the first visit were significantly more likely to be fed infant formula at the second visit if their health visitors had had no breastfeeding training in the previous two years (OR1.74 95%CI 1.13, 2.68).

CONCLUSION

It is essential that Health Visitors are specially trained to support breastfeeding postnatally.

Exploring women's views of breastfeeding: a focus group study within an area with high levels of socio-economic deprivation

There is ample evidence of the short- and long-term health benefits of breastfeeding for mothers and infants, yet breastfeeding rates remain low in the UK, particularly in areas of high social deprivation. It is imperative that appropriate strategies are utilized to support more women to initiate and continue breastfeeding. This study used focus group methodology to explore women's views in relation to breastfeeding. The study was conducted within an area with high levels of socio-economic deprivation in the north-east of England and aimed to identify local barriers to breastfeeding, influences on choice of infant-feeding method and strategies which might improve breastfeeding rates. Focus group discussions were conducted with low-income women, adolescent women and women from a minority ethnic group. The five key themes that emerged from the data were: society's negative attitudes towards breastfeeding; the influence of family and friends and the experience on choice of method of infant feeding; lack of knowledge of some aspects of infant feeding; perceptions of professional support; and women's positive and negative experiences of breastfeeding. Recommendations for promoting and supporting breastfeeding include improving facilities to breastfeed in public, enhancing the provision of information, addressing conflicting advice and poor professional practice and implementing support mechanisms. The findings and recommendations have been used to develop a breastfeeding strategy to meet local needs. This project was funded by the English Department of Health Infant Feeding Initiative.

Multiprofessional training for breastfeeding management in primary care in the UK

BACKGROUND

Increasing breastfeeding initiation and duration rates is one of the UK Department of Health national targets for improving the health of the population. One reason contributing to the high rates of breastfeeding discontinuation may be that primary care teams may not have sufficient knowledge to help mothers overcome problems experienced in the early days and may also give conflicting advice. Previous studies have shown that general practitioners are happy to participate in practice-based educational sessions and have expressed a need for breastfeeding education. This study was carried out as part of the training to achieve 'UNICEF UK Baby Friendly Initiative in a community health care setting' status. It aimed to improve the breastfeeding expertise and advice about the management of breastfeeding problems within the primary care team using a CD-ROM breastfeeding learning package, and to assess the usefulness and acceptability of this educational intervention.

METHODS

Six UK general practitioner (GP) practices were involved in a questionnaire survey of multiprofessional groups before and after an interactive training session. This focussed on managing and solving problems, particularly mastitis and nipple thrush. The questionnaire included 20 questions on attitudes to and knowledge of breastfeeding, and eight multiple-choice questions on breastfeeding management. Non-parametric statistics (Mann-Whitney, Kruskal-Wallis and Wilcoxon tests) were used to compare the groups and to explore changes in knowledge after training.

RESULTS

Fifty primary care health professionals (29 GPs, 18 health visitors, 3 midwives) attended the sessions. There was an increase in scores relating to knowledge about breastfeeding after training, especially for the GPs and for those who did not have their own children. Health visitors improved their scores on recognition of the symptoms of poor attachment at the breast, and GPs showed greatest improvement in resolving sore nipples and recognising nipple thrush.Changes in practice were reported and positive comments made about involving GPs and health visitors together in practice-based education.

CONCLUSION

Using an electronic teaching resource is feasible for updating the knowledge of the primary care team. It can help to improve breastfeeding expertise and advice about breastfeeding problem management.

Council tax valuation band predicts breast feeding and socio-economic status in the ALSPAC study population

Background

Breast-feeding rates in the UK are known to vary by maternal socio-economic status but the latter function is imperfectly defined. We test if CTVB (Council Tax Valuation Band – a categorical assessment of UK property values and amenities governing local tax levies) of maternal address predicts, in a large UK regional sample of births, (a) breast-feeding (b) personal and socio-economic attributes of the mothers.

Methods

Retrospective study of a subset (n.1390 selected at random) of the ALSPAC sample (Avon Longitudinal Study of Parents and Children), a large, geographically defined cohort of mothers followed from early pregnancy to 8 weeks post-delivery. Outcome measures are attitudes to breast-feeding prior to delivery, breast-feeding intention and uptake, demographic and socio-economic attributes of the mothers, CTVB of maternal home address at the time of each birth. Logistic regression analysis, categorical tests.

Results

Study sample: 1360 women divided across the CTVBs – at least 155 in any band or band aggregation. CTVB predicted only one belief or attitude – that bottle-feeding was more convenient for the mother. However only 31% of 'CTVB A infants' are fully breast fed at 4 weeks of life whereas for 'CTVB E+ infants' the rate is 57%. CTVB is also strongly associated with maternal social class, home conditions, parental educational attainment, family income and smoking habit.

Conclusion

CTVB predicts breast-feeding rates and links them with social circumstances. CTVB could be used as the basis for accurate resource allocation for community paediatric services: UK breast-feeding rates are low and merit targeted promotion.

Weight monitoring of breastfed babies in the United Kingdom--interpreting, explaining and intervening

Weighing infants in their first 6 months is an important aspect of growth monitoring and a common activity of child health care services worldwide. During the same 6 months, support for establishing breastfeeding and the promotion of continued exclusive breastfeeding are important activities of health professionals. Parents and health professionals may perceive conflicts between achieving both robust growth and continuing breastfeeding. In this narrative review, the literature on weighing breastfed babies in the United Kingdom is examined. A companion paper examined issues of growth charts, scales and weighing frequency and accuracy. This paper considers issues of interpretation of the plotted weight values for individual breastfed babies, noting the complexities of growth patterns, which may lead to difficulties of accurate identification of those individuals whose growth merits further investigation. Little attention has been given to issues of explaining the interpreted growth curves to parents and this issue is explored and noted as of importance for further study. Research evidence on choosing appropriate interventions to improve the growth of breastfed babies is reviewed. The paucity of such evidence leads to suggestions for future study. This review gathers together a wide range of literature from many different perspectives, with the hope of informing weight monitoring practice so that this can both identify infants whose weight may be of concern, and who may need appropriate intervention, and support continued breastfeeding.

A feasibility study of an intervention to enhance family support for breast feeding in a deprived area in Bristol, UK

OBJECTIVE

to assess fathers' and grandmothers' knowledge of breast feeding and their ability to support successful breast feeding. To design a suitable intervention for fathers and grandmothers to support breast-feeding mothers, to assess the acceptability and feasibility of the intervention and monitor its likely effects on breast-feeding rates.

DESIGN

qualitative focus groups and interviews. Evaluation of the feasibility of an antenatal intervention.

SETTING

Community Health Centre and family homes in an area of relative social and economic deprivation in South Bristol, UK, from November 2001 to May 2003.

PARTICIPANTS

10 grandmothers and five fathers in focus groups and interviews. Twenty-nine families in the intervention.

INTERVENTION

an antenatal intervention for grandmothers or partners to support breast feeding, which combined the benefits and mechanics of breast feeding with ways of providing support for breast feeding.

FINDINGS

using an antenatal session based around a leaflet, specifically written for grandmothers and partners, and including a demonstration of good breast-feeding positioning and attachment in addition to the discussion of specific issues around the health benefits and mechanics of breast feeding was found to be acceptable, useful and enjoyable by all participants, particularly for first-time parents. The importance of fathers and grandmothers in providing emotional and practical support for breast-feeding mothers is highlighted, since those who were still breast feeding at eight weeks all felt that they were receiving similar or better support postnatally than they were antenatally. Significantly more intervention mothers were breast feeding their babies at eight weeks than in the wider practice population of mothers outside the study who intended to breast feed. Fathers' attitudes to breast feeding postnatally were fairly similar to those before the baby was born with breast feeding in public and knowing how much milk the baby was getting having the most influence on whether they felt that their partner should continue to breast feed.

IMPLICATIONS FOR PRACTICE

this type of intervention could be part of a multi-faceted approach towards improving breast-feeding initiation and continuation, particularly in areas of low prevalence. Health professionals should be opportunistic about involving other family members in discussions about breast feeding whenever possible, both antenatally and postnatally.

Infant feeding patterns in the Finnish type I diabetes prediction and prevention nutrition study cohort

OBJECTIVE

To investigate infant feeding patterns during the first 2 y and their relation to sociodemographic factors.

DESIGN

A population-based cohort study.

SETTING

Oulu and Tampere University Hospital district areas 1996-1999, Finland.

SUBJECTS AND METHODS

All newborn infants (n=675) with increased genetic risk for type I diabetes were invited to the study in 1996-1997. Of these, 429 (64%) completed the dietary follow-up form by the time they reached 2 y of age.

RESULTS

The median duration of exclusive breastfeeding (BF) was 1.8 months (range 0-6 months) and that of total BF 7.0 months (0.3-25 months). Among the infants 20% were exclusively breastfed at least 4 months (recommendation 4-6 months). Infants were introduced to infant formula at the median age of 1.8 months (range 0-25 months) and other supplementary foods at the median age of 3.5 months (1-6 months). Infant's ponderal index at birth was inversely associated with the duration of total BF. The age of introduction of supplementary foods correlated positively with the duration of total BF. Longer parental education and increased maternal age were associated with a longer duration of BF and older age at introduction of supplementary foods. Infant formula and other supplementary foods were added earlier to the diet of the boys than that of the girls.

CONCLUSION

Duration of breastfeeding in Finland is shorter than recommended. Compliance with the current recommendations on the timing of introduction of first supplementary food and dairy products is relatively poor. The diet during infancy seems to be conspicuously influenced by the duration of parental education, maternal age and the sex of the infant.

Randomised controlled trial of support from volunteer counsellors for mothers considering breast feeding

OBJECTIVE

To investigate whether offering volunteer support from counsellors in breast feeding would result in more women breast feeding.

DESIGN

Randomised controlled trial.

SETTING

32 general practices in London and south Essex.

PARTICIPANTS

720 women considering breast feeding.

MAIN OUTCOME MEASURES

Primary outcome was prevalence of any breast feeding at six weeks. Secondary outcomes were the proportion of women giving any breast feeds, or bottle feeds at four months, duration of any breast feeding, time to introduction of bottle feeds, and satisfaction with breast feeding.

RESULTS

Offering support in breast feeding did not significantly increase the prevalence of any breast feeding to six weeks (65% (218/336) in the intervention group and 63% (213/336) in the control group; relative risk 1.02, 95% confidence interval 0.84 to 1.24). Survival analysis up to four months confirmed that neither duration of breast feeding nor time to introduction of formula feeds differed significantly between control and intervention groups. Not all women in the intervention group contacted counsellors postnatally, but 73% (123/179) of those who did rated them as very helpful. More women in the intervention group than in the control group said that their most helpful advice came from counsellors rather than from other sources.

CONCLUSIONS

Women valued the support of a counsellor in breast feeding, but the intervention did not significantly increase breastfeeding rates, perhaps because some women did not ask for help.

The effectiveness of primary care-based interventions to promote breastfeeding: systematic evidence review and meta-analysis for the US Preventive Services Task Force

PURPOSE

We wanted to systematically review whether primary care-based interventions improve initiation and duration of breastfeeding.

METHODS

Studies were found by searching MEDLINE (1966-2001), Health-STAR, the Cochrane Database of Systematic Reviews, the National Health Service Centre for Reviews and Dissemination Databases, and bibliographies of identified trials and review articles. Studies were included if they originated in the primary care setting and were conducted in a developed country, written in English, and contained a concurrent control group.

RESULTS

Thirty randomized and nonrandomized controlled trials and 5 systematic reviews of breastfeeding counseling were included. Educational programs had the greatest effect of any single intervention on both initiation (difference 0.23; 95% confidence interval [CI], 0.12-0.34) and short-term duration (difference 0.39; 95% CI, 0.27-0.50). Support programs conducted by telephone, in person, or both increased short-term (difference 0.11; 95% CI, 0.03-0.19) and long-term duration (difference 0.08; 95% CI, 0.02-0.16). In contrast, written materials such as pamphlets did not significantly increase breastfeeding. Data were insufficient to determine whether the combination of education with support was more effective than education alone.

CONCLUSIONS

Educational programs were the most effective single intervention. One woman would breast-feed for up to 3 months for every 3 to 5 women attending breastfeeding educational programs. Future research and policy should focus on translating these findings into more widespread practice in diverse primary care settings.

Breast-feeding in Europe--rationale and prevalence, challenges and possibilities for promotion

The status reports and other information collected showed that interpretation of the data on breast-feeding prevalence and duration collected at national or regional level within European countries is difficult, since this information is not collected in every country or it is gathered under different criteria. However, there seem to be vast differences in prevalence of breast-fed children and breast-feeding duration between European countries and possibly within countries. There is a need to establish monitoring systems enabling comparability of data between countries. Assessing determinants for breast-feeding is required as well. There are a number of important consensus documents supporting breast-feeding action. These documents are related to either one or more of the following categories: health benefits of breast-feeding; recommendations regarding breast-feeding duration and exclusiveness; providing guidance on breast-feeding promotion. Current recommendation is exclusive breast-feeding for 6 months.

Independent predictors of breastfeeding intention in a disadvantaged population of pregnant women

BACKGROUND

Breastfeeding rates in Scotland are very low, particularly in the more disadvantaged areas. Despite a number of interventions to promote breastfeeding very few women actually intend to breastfeed their baby. The aim of this study was to identify personal and social factors independently associated with intention to breastfeed.

METHODS

Nine hundred and ninety seven women from two socio-economically disadvantaged housing estates located on the outskirts of Glasgow participated in a study that aimed to increase the prevalence of breastfeeding. Self-administered questionnaires completed by each participant collected information in early pregnancy, prior to exposure to the study intervention, on feeding intention, previous feeding experience and socio-demographic data.

RESULTS

Five factors were independently predictive of breastfeeding intention. These were previous breastfeeding experience, living with a partner, smoking, parity and maternal age. After adjusting for these five factors, neither deprivation nor receipt of milk tokens provided useful additional predictive information.

CONCLUSION

In this population of socially disadvantaged pregnant women we identified five variables that were independently predictive of breastfeeding intention. These variables could be useful in identifying women at greatest risk of choosing not to breastfeed. Appropriate promotional efforts could then be designed to give due consideration to individual circumstances.

Donor human milk for preterm infants

As survival rates for preterm infants improve, more attention is being focused on improving the quality of survival through optimal nutritional management. The benefits of human milk for term infants are well recognized, with current research suggesting that human milk may especially benefit the preterm infant. Some mothers are unable or unwilling to provide breastmilk for their infants. Although not as well studied as mother's own milk, pasteurized donor human milk can provide many of the components and benefits of human milk while eliminating the risk of transmission of infectious agents. Pasteurization does affect some of the nutritional and immunologic components of human milk, but many immunoglobulins, enzymes, hormones, and growth factors are unchanged or minimally decreased. In California donor human milk costs approximately $3.00 per ounce to purchase. A reduction in length of stay, necrotizing enterocolitis and sepsis may result in a relative saving of approximately $11 to the NICU or healthcare plan for each $1 spent for pasteurized donor milk.

Breastfeeding determinants and a suggested framework for action in Europe

This is a background paper for the EURODIET initiative. A number of international initiatives and documents were identified, such as the Baby-Friendly Hospital Initiative, the International Code of Marketing of Breast Milk Substitutes and a number of consensus reports from professional groups, that propose ways forward for breastfeeding promotion. These point at a range of initiatives on different levels. The determinants for successful breastfeeding have to be identified. They can be categorised into five groups; socio-demographic, psycho-social, health care related, community- and policy attributes. A framework for future breastfeeding promoting efforts on European level is suggested, within which these determinants are considered. A common surveillance system needs to be built in Europe, where determinants of breastfeeding are included. There is also a need for a surveillance system which makes it possible to use the collected data on local level, not only on national and supranational level. Combined with a thorough review of the effectiveness of already existing breastfeeding promotion programmes, a co-ordinated EU-EFTA action plan on breastfeeding should be formulated and implemented within a few years. Urgent action could take place in parallel, especially targeting young, low-income, less educated mothers.

Avaliação nutricional de lactentes hospitalizados

Investigou-se a evolução ponderal, conforme o valor das quotas calóricas de dietas prescritas (QCP) e aceitas (QCA) de lactentes internados por diarréia ou broncopnemonia no Instituto Materno Infantil de Pernambuco, Brasil. A proporção de crianças que ganharam ou não ganharam peso foi avaliada em função das QCP E QCA que atingiram as quotas calóricas ideais (QCI) durante o internamento, verificando-se que 46% das crianças perderam ou mantiveram o peso nos dois primeiros dias. Houve maior freqüência de ganho de peso associado às QCP e QCA que atingiram as QCI, bem como entre as crianças amamentadas. Concluiu-se existir deficiente evolução ponderal relacionada às baixas quotas calóricas oferecidas ou aceitas durante a hospitalização.

A systematic review of the relationship between breastfeeding and early childhood caries

This systematic review investigated the relationship between early childhood caries (ECC) and breastfeeding. The systematic review methodology used by the Cochrane Collaboration was modified and adopted for this review. 28 of 151 articles (18.5%) were relevant for the study and were rated as strong (0), moderate (3), weak (9) or very weak (16). Validity scores indicated whether a study met the reviewer's criteria for research rigour. The percentage of studies that received a passing score for each criterion examined were: study design (3.6%), confounders (21%), data collection method (54%), definition of ECC (57%), dental health practices (28%) and infant feeding practices (4%). A lack of methodological consistency related to the study of the association of breastfeeding and ECC, and inconsistent definitions of ECC and breastfeeding, make it difficult to draw conclusions. Moderate articles indicate that breastfeeding for over one year and at night beyond eruption of teeth may be associated with ECC. Due to conflicting findings in less rigorous research studies, no definitive time at which an infant should be weaned was determined, and parents should begin an early and consistent mouth care regime.

A systematic review of the relationship between breastfeeding and early childhood caries

This systematic review investigated the relationship between early childhood caries (ECC) and breastfeeding. The systematic review methodology used by the Cochrane Collaboration was modified and adopted for this review. 28 of 151 articles (18.5%) were relevant for the study and were rated as strong (0), moderate (3), weak (9) or very weak (16). Validity scores indicated whether a study met the reviewer's criteria for research rigour. The percentage of studies that received a passing score for each criterion examined were: study design (3.6%), confounders (21%), data collection method (54%), definition of ECC (57%), dental health practices (28%) and infant feeding practices (4%). A lack of methodological consistency related to the study of the association of breastfeeding and ECC, and inconsistent definitions of ECC and breastfeeding, make it difficult to draw conclusions. Moderate articles indicate that breastfeeding for over one year and at night beyond eruption of teeth may be associated with ECC. Due to conflicting findings in less rigorous research studies, no definitive time at which an infant should be weaned was determined, and parents should begin an early and consistent mouth care regime.

Enteral feeding of the micropremie

Clinical practice demands knowledge of gastrointestinal ontogeny and the factors that affect our ability to use enteral feeding in the micropremie. The decisions regarding milk type (when and how it should be given) are considered in the light of current physiologic and clinical evidence. Special considerations apply in the micropremie who is also small for gestational age and NEC must be avoided. Trophic feeding now has an established role, allowing the infant to benefit from enteral feeds even when full nutritive milk feeding is not possible.

Breast-feeding and cognitive development: a meta-analysis

BACKGROUND

Although the results of many clinical studies suggest that breast-fed children score higher on tests of cognitive function than do formula-fed children, some investigators have suggested that these differences are related to confounding covariables such as socioeconomic status or maternal education.

OBJECTIVE

Our objective was to conduct a meta-analysis of observed differences in cognitive development between breast-fed and formula-fed children.

DESIGN

In this meta-analysis we defined the effect estimate as the mean difference in cognitive function between breast-fed and formula-fed groups and calculated average effects using fixed-effects and random-effects models.

RESULTS

Of 20 studies meeting initial inclusion criteria, 11 studies controlled for >/=5 covariates and presented unadjusted and adjusted results. An unadjusted benefit of 5.32 (95% CI: 4.51, 6.14) points in cognitive function was observed for breast-fed compared with formula-fed children. After adjustment for covariates, the increment in cognitive function was 3.16 (95% CI: 2.35, 3.98) points. This adjusted difference was significant and homogeneous. Significantly higher levels of cognitive function were seen in breast-fed than in formula-fed children at 6-23 mo of age and these differences were stable across successive ages. Low-birth-weight infants showed larger differences (5.18 points; 95% CI: 3.59, 6.77) than did normal-birth-weight infants (2.66 points; 95% CI: 2.15, 3.17) suggesting that premature infants derive more benefits in cognitive development from breast milk than do full-term infants. Finally, the cognitive developmental benefits of breast-feeding increased with duration.

CONCLUSION

This meta-analysis indicated that, after adjustment for appropriate key cofactors, breast-feeding was associated with significantly higher scores for cognitive development than was formula feeding.

Qualitative study of decisions about infant feeding among women in east end of London

OBJECTIVE

To improve understanding of how first time mothers who belong to a socioeconomic group with particularly low rates of breast feeding decide whether or not to initiate breast feeding.

DESIGN

Qualitative semistructured interviews early in pregnancy and 6-10 weeks after birth.

SETTING

Women's homes in east end of London.

SUBJECTS

21 white, low income women expecting their first baby were interviewed mostly at home, often with their partner or a relative. Two focus groups were conducted.

RESULTS

Women who had regularly seen a relative or friend successfully breast feed and described this experience positively were more confident about and committed to breast feeding. They were also more likely to succeed. Exposure to breast feeding, however, could be either a positive or a negative influence on the decision to breast feed, depending on the context. Women who had seen breast feeding only by a stranger often described this as a negative influence, particularly if other people were present. All women knew that breast feeding has health benefits. Ownership of this knowledge, however, varied according to the woman's experience of seeing breast feeding.

CONCLUSIONS

The decision to initiate breast feeding is influenced more by embodied knowledge gained from seeing breast feeding than by theoretical knowledge about its benefits. Breast feeding involves performing a practical skill, often with others present. The knowledge, confidence, and commitment necessary to breast feed may be more effectively gained through antenatal apprenticeship to a breastfeeding mother than from advice given in consultations or from books.

Staff support for mothers to provide breast milk in pediatric hospitals and neonatal units

This paper reports on two surveys of nurses and midwives working in a large pediatric hospital and three neonatal units in London, England, regarding support for mothers to provide breast milk. One hundred and twenty-two pediatric staff and 55 neonatal staff returned the questionnaires. Fifty-three percent of pediatric staff had received no training in breastfeeding during or after nursing school. Twenty-two percent of neonatal staff had no relevant training, yet they frequently were asked to help mothers in providing breast milk for their infant. Some respondents demonstrated lack of relevant knowledge including the importance of breast milk, ideal frequencies for milk expression, and the potential to establish lactation at any time. There was a wide range of comments on the barriers in providing breast milk. These results illustrate the need for appropriate breastfeeding policies and staff training. There is a particular lack of studies based in the United Kingdom on breastfeeding in pediatric units. It is hoped that this article will generate discussion among staff about the breastfeeding support they offer and ways to strengthen it.

Increasing breastfeeding rates to reduce infant illness at the community level

OBJECTIVE

Although breastfeeding is associated with lower rates of a variety of infant illnesses, skeptics have suggested that much of the association is attributable to confounding, even after appropriate statistical adjustment. This article utilizes a novel design to investigate changes in infant illness at the community level after a successful breastfeeding promotion program.

METHODS

In this population-based cohort study, the medical records of all infants born in one Navajo community the year before a breastfeeding promotion program (n = 977) and the year during the intervention (n = 858) were reviewed. Outcomes assessed include changes after the intervention in: proportion breastfeeding and/or breastfeeding exclusively; incidence of common infant illnesses in the first year of life; and feeding-group specific incidence of illness.

RESULTS

The proportion of women breastfeeding exclusively for any period of time increased from 16.4% to 54.6% after the intervention. The percent of children having pneumonia and gastroenteritis declined 32. 2% and 14.6%, respectively, after the intervention. Feeding-group specific rates of these illnesses were unchanged, indicating that the decline observed was attributable to the increased proportion of infants breastfeeding. In contrast, rates of croup and bronchiolitis increased after the intervention among those fed formula from birth, suggesting a viral epidemic which was limited to those never exclusively breastfed. Finally, sepsis declined in both formula-fed and breastfed infants after the intervention, suggesting that other factors affected this illness outcome after the intervention.

CONCLUSIONS

Increasing the proportion of exclusively breastfed infants seems to be an effective means of reducing infant illness at the community level. The experimental design suggests that the increased incidence of illness among minimally breastfed infants is causally related to lack of breast milk, rather than being attributable to confounding.

Extreme attitudes to body shape, social and psychological factors and a reluctance to breast feed. ALSPAC Study Team. Avon Longitudinal Study of Pregnancy and Childhood

Despite widespread advocacy of breast feeding, many babies are breast fed only briefly, if at all. Mothers' decisions on how to feed are often made before the birth; so we have sought demographic, social and psychological factors that might be amenable to intervention during pregnancy. In the Avon Longitudinal Study of Pregnancy and Childhood about 12,000 women completed questionnaires in pregnancy. Univariate analyses were carried out to establish which factors were related to breast feeding intentions. All significant factors in univariate analyses were entered into logistic regression analyses. Demographic characteristics independently related to intentions to breast feed included older maternal age, more maternal education, primiparity and not smoking; in previous work all these had been associated with actual feeding behaviour. Social relationship variables had a small influence. Of the psychological variables, a notable finding was that women who were preoccupied with their body shape and those who expressed controlling, less child-centred, responses to managing an infant in the postnatal months were less likely to express intentions to breast feed. Depression did not predict breast feeding intentions once the other factors had been taken into account. Health care professionals may be able to intervene to increase breast feeding by making routine enquiries during antenatal care and targeting appropriate subgroups.

Nutrition and cognitive function

The work of the Medical Research Council Dunn Nutrition Unit, Cambridge, on the influence of early diet on the development of preterm infants is reviewed. Then further consideration is given to the implication of the findings. Malnutrition during a sensitive period may result in disease in adult life, and studies strongly suggest the development of the brain and retina can be affected. This may be due to the lack of essential fatty acids, and will particularly involve premature babies born at a time when cell membrane development is especially vulnerable. These findings must sometimes be viewed with caution, as genetic and environmental influences can be paramount. There are many reasons to favour breast feeding, rather than giving formula feeds, including improved cognition and visual function. For example breast milk contains docosahexaenoic acid and arachidonic acid, essential for normal brain development, and often absent or in short supply in formula feeds. Although the advantages in developmental status may be due, in part anyhow, to factors such as the mother's ability and education, and to the child being given greater opportunities, the evident importance of the composition of human breast milk cannot be denied. Formula feeds do contain a higher nutrient value than breast milk, which can result in improved height and weight of infants fed in this way: if it is necessary to use them the challenge for future research is to improve their composition. Although this may be of more importance for premature babies, term babies can also be affected; this has both medical and social implications.

Influences on breastfeeding in southeast England

Factors associated with not exclusively breastfeeding at discharge from the obstetric hospital and with duration of breastfeeding were examined in 700 randomly sampled infants. Obstetric records were examined in 97.7% of the subjects and 73.0% of subject families were interviewed. There were 444 (66.5%) infants exclusively breastfed at discharge from the obstetric hospital. Factors associated with not exclusively breastfeeding at discharge from the obstetric hospital after adjusting for potential confounders were: mother leaving school aged less than 18 years, mother not attending antenatal classes and the use of a dummy in the 2 weeks before the interview. Bed sharing practice in the 2 weeks before the interview was associated with exclusively breastfeeding at discharge from the obstetric hospital. Factors associated with a shorter duration of breastfeeding were: mother leaving school before 18 years of age, smoking 20 or more cigarettes per day and use of a dummy. Dummy use may causally reduce breastfeeding or might be a marker for breastfeeding difficulties. There was a dose-response relationship with smoking, with heavier smokers breastfeeding for the shortest time periods. Bed sharing was associated with a longer duration of breastfeeding. This may not necessarily be a causal relationship because breastfeeding may promote bed sharing. The effect of dummy use and bed sharing on breastfeeding warrants further study.

[Prone sleeping position and other risk factors in sudden infant death syndrome: a prevalence study in Geneva]

A survey by telephone interviews has been carried out in 1993 in the canton of Geneva, in order to measure the prevalence of 3 risk factors for the sudden infant death syndrome (SIDS) and to evaluate the potential for SIDS prevention based on these factors: prone sleeping position, tobacco smoking by the parents during pregnancy, and no complete breast-feeding at 8 days of age. 278 families participated to the study, of 320 families who could be contacted by telephone in Geneva, from a random sample of 550 families having had a child in Geneva in the preceding 12 months. 40% of the infants had been put to bed in the prone position on the preceding evening 18% of the mothers had smoked during pregnancy. Prevalence of low birth weight was 4.9% for 0 to 4 cigarettes per day during pregnancy, 17.2% for 5 cigarettes and more. At one week, 16.5% of children were not exclusively breast-fed. On the basis of these results, it can be estimated that an effective prevention programme, centered on prone sleeping position could decrease the incidence of SIDS by 50% or more. An even greater fraction of cases, up to 80%, could be avoided by the prevention of the 3 studied factors. These estimates show the need to develop a mother and child health programme in Switzerland.

New modalities for treating neonatal infection

While the overall incidence of infection has remained constant at approximately 7/1000 livebirths, the last decade has witnessed a reduction in early onset infections and a relative increase in nosocomial sepsis, chiefly with coagulase-negative staphylococci. Immaturity of host defence mechanisms contributes to an increasing susceptibility to infection with decreasing gestational age and birth weight. In the past, efforts to enhance host defence have included the use of granulocyte infusions, fresh frozen plasma, exchange blood transfusions and immunoglobulin therapy. Current trials are investigating the use of agents which enhance endogenous defence mechanisms, such as, recombinant human granulocyte colony-stimulating factant and recombinant human granulocyte-macrophage colony-stimulating factor and of pentoxifylline. In the meantime strict attention to handwashing and aseptic technique remain the best methods of preventing nosocomial sepsis.

Effect of fortifying breast milk on gastric emptying

A study was performed to determine if the addition of a fortifier to expressed breast milk (EBM) affected gastric emptying in low birthweight infants. Using ultrasonography, the gastric emptying of EBM alone was compared with that containing a fortifier, in a blind, crossover study. Twenty two low birthweight infants were studied: median (range) gestation 31.5 weeks (28-37); birthweight 1495 g (1000-2480 g). The gastric antral cross-sectional area (ACSA) was measured by ultrasonography before each feed and then sequentially after its completion until the ACSA returned to its pre-feed value. The half emptying time was calculated as the time taken for the ACSA to decrease to half the maximum increment. The mean difference (standard error) between half emptying times for EBM alone and for EBM with added fortifier was not significant: 1.48 (4.9) minutes. These data show that fortifying breast milk does not affect gastric emptying and suggests that the practice is unlikely to affect feed tolerance in low birthweight infants.

The role of doctors in influencing infant feeding practices in South India

Infant feeding practices are influenced by many factors including culture, household income, literacy, advice from health care workers and advertising. In South India doctors play a very significant role in influencing a mother's decision about when or whether to supplement breastfeeding with formula feeds. Doctors exert their influence on mothers both directly and indirectly, and they are increasingly targeted by commercial infant food companies. Doctors need continuing education about nutrition education, lactation management, and a greater awareness about the influence of inappropriate promotional practices by companies.

Effect of diet on the fatty acid composition of the major phospholipids of infant cerebral cortex

The fatty acid compositions of the major cerebral cortex phospholipids, phosphatidylcholine, phosphatidylethanolamine, and phosphatidylserine were measured in 16 term and one preterm 'cot death' infants fed exclusively either breast milk or one of two formulas. Docosahexaenoic acid (DHA; C22:6n-3) content in cerebral cortex phosphatidylethanolamine and phosphatidylserine of breast fed infants was greater than in both formula groups with significances varying between p < 0.1 and p < 0.001. Compensation for this deficiency in DHA in the formula fed infants was largely achieved by increased incorporation of docosapentaenoic acid (C22:5n-6) in the cerebral cortex of term infants and Mead (C20:3n-9) and dihomo Mead acids (C22:3n-9) in the preterm infant. As the phospholipids most affected are known to perform an important role in membrane function and are possibly integral to neurotransmission it is recommended that breast milk substitute infant formulas should contain n-3 and n-6 series polyunsaturated fatty acids in proportions similar to those of human milk.