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

Support for healthy breastfeeding mothers with healthy term babies

BACKGROUND

There is extensive evidence of important health risks for infants and mothers related to not breastfeeding. In 2003, the World Health Organization recommended that infants be breastfed exclusively until six months of age, with breastfeeding continuing as an important part of the infant's diet until at least two years of age. However, current breastfeeding rates in many countries do not reflect this recommendation.

OBJECTIVES

1. To describe types of breastfeeding support for healthy breastfeeding mothers with healthy term babies. 2. To examine the effectiveness of different types of breastfeeding support interventions in terms of whether they offered only breastfeeding support or breastfeeding support in combination with a wider maternal and child health intervention ('breastfeeding plus' support).  3. To examine the effectiveness of the following intervention characteristics on breastfeeding support:      a. type of support (e.g. face-to-face, telephone, digital technologies, group or individual support, proactive or reactive);      b. intensity of support (i.e. number of postnatal contacts);      c. person delivering the intervention (e.g. healthcare professional, lay person);     d. to examine whether the impact of support varied between high- and low-and middle-income countries.

SEARCH METHODS

We searched Cochrane Pregnancy and Childbirth's Trials Register (which includes results of searches of CENTRAL, MEDLINE, Embase, CINAHL, ClinicalTrials.gov, WHO International Clinical Trials Registry Platform (ICTRP)) (11 May 2021) and reference lists of retrieved studies.

SELECTION CRITERIA

Randomised or quasi-randomised controlled trials comparing extra support for healthy breastfeeding mothers of healthy term babies with usual maternity care. Support could be provided face-to-face, over the phone or via digital technologies. All studies had to meet the trustworthiness criteria.  DATA COLLECTION AND ANALYSIS: We used standard Cochrane Pregnancy and Childbirth methods. Two review authors independently selected trials, extracted data, and assessed risk of bias and study trustworthiness.  The certainty of the evidence was assessed using the GRADE approach.

MAIN RESULTS

This updated review includes 116 trials of which 103 contribute data to the analyses. In total more than 98,816 mother-infant pairs were included.  Moderate-certainty evidence indicated that 'breastfeeding only' support probably reduced the number of women stopping breastfeeding for all primary outcomes: stopping any breastfeeding at six months (Risk Ratio (RR) 0.93, 95% Confidence Interval (CI) 0.89 to 0.97); stopping exclusive breastfeeding at six months (RR 0.90, 95% CI 0.88 to 0.93); stopping any breastfeeding at 4-6 weeks (RR 0.88, 95% CI 0.79 to 0.97); and stopping exclusive breastfeeding at 4-6 (RR 0.83 95% CI 0.76 to 0.90). Similar findings were reported for the secondary breastfeeding outcomes except for any breastfeeding at two months and 12 months when the evidence was uncertain if 'breastfeeding only' support helped reduce the number of women stopping breastfeeding.  The evidence for 'breastfeeding plus' was less consistent. For primary outcomes there was some evidence that 'breastfeeding plus' support probably reduced the number of women stopping any breastfeeding (RR 0.94, 95% CI 0.91 to 0.97, moderate-certainty evidence) or exclusive breastfeeding at six months (RR 0.79, 95% CI 0.70 to 0.90).  'Breastfeeding plus' interventions may have a beneficial effect on reducing the number of women stopping exclusive breastfeeding at 4-6 weeks, but the evidence is very uncertain (RR 0.73, 95% CI 0.57 to 0.95). The evidence suggests that 'breastfeeding plus' support probably results in little to no difference in the number of women stopping any breastfeeding at 4-6 weeks (RR 0.94, 95% CI 0.82 to 1.08, moderate-certainty evidence). For the secondary outcomes, it was uncertain if 'breastfeeding plus' support helped reduce the number of women stopping any or exclusive breastfeeding at any time points.  There were no consistent findings emerging from the narrative synthesis of the non-breastfeeding outcomes (maternal satisfaction with care, maternal satisfaction with feeding method, infant morbidity, and maternal mental health), except for a possible reduction of diarrhoea in intervention infants.  We considered the overall risk of bias of trials included in the review was mixed. Blinding of participants and personnel is not feasible in such interventions and as studies utilised self-report breastfeeding data, there is also a risk of bias in outcome assessment.   We conducted meta-regression to explore substantial heterogeneity for the primary outcomes using the following categories: person providing care; mode of delivery; intensity of support; and income status of country.  It is possible that moderate levels (defined as 4-8 visits) of 'breastfeeding only' support may be associated with a more beneficial effect on exclusive breastfeeding at 4-6 weeks and six months. 'Breastfeeding only' support may also be more effective in reducing women in low- and middle-income countries (LMICs) stopping exclusive breastfeeding at six months compared to women in high-income countries (HICs). However, no other differential effects were found and thus heterogeneity remains largely unexplained. The meta-regression suggested that there were no differential effects regarding person providing support or mode of delivery, however, power was limited.  AUTHORS' CONCLUSIONS: When 'breastfeeding only' support is offered to women, the duration and in particular, the exclusivity of breastfeeding is likely to be increased. Support may also be more effective in reducing the number of women stopping breastfeeding at three to four months compared to later time points.  For 'breastfeeding plus' interventions the evidence is less certain. Support may be offered either by professional or lay/peer supporters, or a combination of both. Support can also be offered face-to-face, via telephone or digital technologies, or a combination and may be more effective when delivered on a schedule of four to eight visits. Further work is needed to identify components of the effective interventions and to deliver interventions on a larger scale.

Cost-effectiveness evidence for strategies to promote or support breastfeeding: a systematic search and narrative literature review

BACKGROUND

Global health policy recommends exclusive breastfeeding until infants are 6 months. Little is known about the cost-effectiveness of breastfeeding promotion strategies. This paper presents a systematic search and narrative review of economic evaluations of strategies to support or promote breastfeeding. The aim of the review is to bring together current knowledge to guide researchers and commissioners towards potentially cost-effective strategies to promote or support breastfeeding.

METHODS

Searches were conducted of electronic databases, including MEDLINE and Scopus, for economic evaluations relevant to breastfeeding, published up to August 2019. Records were screened against pre-specified inclusion/exclusion criteria and quality was assessed using a published checklist. Costs reported in included studies underwent currency conversion and inflation to a single year and currency so that they could be compared. The review protocol was registered on the PROSPERO register of literature reviews (ID, CRD42019141721).

RESULTS

There were 212 non-duplicate citations. Four were included in the review, which generally indicated that interventions were cost-effective. Two studies reported that breastfeeding promotion for low-birth weight babies in critical care is associated with lower costs and greater health benefits than usual care and so is likely to be cost-effective. Peer-support for breastfeeding was associated with longer duration of exclusivity with costs ranging from £19-£107 per additional month (two studies).

CONCLUSIONS

There is limited published evidence on the cost-effectiveness of strategies to promote breastfeeding, although the quality of the current evidence is reasonably high. Future studies should integrate evaluations of the effectiveness of strategies with economic analyses.

UK mothers' experiences of bottle refusal by their breastfed baby

Little is known about bottle refusal by breastfed babies; however, an informal review of global online forums and social media suggested large numbers of mothers experiencing the scenario. This study aimed to explore UK mothers' experiences of bottle refusal by their breastfed baby in order to provide understanding of the scenario and enhance support for mothers experiencing it. A 22‐point online questionnaire was developed and completed by 841 UK mothers. Findings suggest that mothers introduced a bottle to their breastfed baby due to physical, psychological and socio‐cultural factors. Advice and support for mothers experiencing bottle refusal was not always helpful, and 27% of mothers reported bottle refusal as having a negative impact on their breastfeeding experience. When compared with eventual bottle acceptance, bottle refusal was significantly associated with previous experience of bottle refusal (p < .001), how frequently mothers intended to feed their baby by bottle and babies being younger at the first attempt to introduce a bottle (p < .001). This study provides a unique insight into the complexities of bottle refusal by breastfed babies and the impact it can have upon mothers' breastfeeding experiences. It generates knowledge and understanding that can help to inform practice and policies. In addition, a ‘normalising’ of the scenario could enable mothers, and those supporting them, to view and manage it more positively.

The effects of breastfeeding on childhood BMI: a propensity score matching approach

Background

Many studies have found a statistical association between breastfeeding and childhood adiposity. This paper investigates whether breastfeeding has an effect on subsequent childhood body mass index (BMI) using propensity scores to account for confounding.

Methods

We use data from the Millennium Cohort Study, a nationally representative UK cohort survey, which contains detailed information on infant feeding and childhood BMI. Propensity score matching is used to investigate the mean BMI in children breastfed exclusively and partially for different durations of time.

Results

We find statistically significant influences of breastfeeding on childhood BMI, particularly in older children, when breastfeeding is prolonged and exclusive. At 7 years, children who were exclusively breastfed for 16 weeks had a BMI 0.28 kg/m2 (95% confidence interval 0.07 to 0.49) lower than those who were never breastfed, a 2% reduction from the mean BMI of 16.6 kg/m2.

Conclusions

For this young cohort, even small effects of breastfeeding on BMI could be important. In order to reduce BMI, breastfeeding should be encouraged as part of wider lifestyle intervention. This evidence could help to inform public health bodies when creating public health guidelines and recommendations.

Support for healthy breastfeeding mothers with healthy term babies

BACKGROUND

There is extensive evidence of important health risks for infants and mothers related to not breastfeeding. In 2003, the World Health Organization recommended that infants be breastfed exclusively until six months of age, with breastfeeding continuing as an important part of the infant's diet until at least two years of age. However, current breastfeeding rates in many countries do not reflect this recommendation.

OBJECTIVES

To describe forms of breastfeeding support which have been evaluated in controlled studies, the timing of the interventions and the settings in which they have been used.To examine the effectiveness of different modes of offering similar supportive interventions (for example, whether the support offered was proactive or reactive, face-to-face or over the telephone), and whether interventions containing both antenatal and postnatal elements were more effective than those taking place in the postnatal period alone.To examine the effectiveness of different care providers and (where information was available) training.To explore the interaction between background breastfeeding rates and effectiveness of support.

SEARCH METHODS

We searched Cochrane Pregnancy and Childbirth's Trials Register (29 February 2016) and reference lists of retrieved studies.

SELECTION CRITERIA

Randomised or quasi-randomised controlled trials comparing extra support for healthy breastfeeding mothers of healthy term babies with usual maternity care.

DATA COLLECTION AND ANALYSIS

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

MAIN RESULTS

This updated review includes 100 trials involving more than 83,246 mother-infant pairs of which 73 studies contribute data (58 individually-randomised trials and 15 cluster-randomised trials). We considered that the overall risk of bias of trials included in the review was mixed. Of the 31 new studies included in this update, 21 provided data for one or more of the primary outcomes. The total number of mother-infant pairs in the 73 studies that contributed data to this review is 74,656 (this total was 56,451 in the previous version of this review). The 73 studies were conducted in 29 countries. Results of the analyses continue to confirm that all forms of extra support analyzed together showed a decrease in cessation of 'any breastfeeding', which includes partial and exclusive breastfeeding (average risk ratio (RR) for stopping any breastfeeding before six months 0.91, 95% confidence interval (CI) 0.88 to 0.95; moderate-quality evidence, 51 studies) and for stopping breastfeeding before four to six weeks (average RR 0.87, 95% CI 0.80 to 0.95; moderate-quality evidence, 33 studies). All forms of extra support together also showed a decrease in cessation of exclusive breastfeeding at six months (average RR 0.88, 95% CI 0.85 to 0.92; moderate-quality evidence, 46 studies) and at four to six weeks (average RR 0.79, 95% CI 0.71 to 0.89; moderate quality, 32 studies). We downgraded evidence to moderate-quality due to very high heterogeneity.We investigated substantial heterogeneity for all four outcomes with subgroup analyses for the following covariates: who delivered care, type of support, timing of support, background breastfeeding rate and number of postnatal contacts. Covariates were not able to explain heterogeneity in general. Though the interaction tests were significant for some analyses, we advise caution in the interpretation of results for subgroups due to the heterogeneity. Extra support by both lay and professionals had a positive impact on breastfeeding outcomes. Several factors may have also improved results for women practising exclusive breastfeeding, such as interventions delivered with a face-to-face component, high background initiation rates of breastfeeding, lay support, and a specific schedule of four to eight contacts. However, because within-group heterogeneity remained high for all of these analyses, we advise caution when making specific conclusions based on subgroup results. We noted no evidence for subgroup differences for the any breastfeeding outcomes.

AUTHORS' CONCLUSIONS

When breastfeeding support is offered to women, the duration and exclusivity of breastfeeding is increased. Characteristics of effective support include: that it is offered as standard by trained personnel during antenatal or postnatal care, that it includes ongoing scheduled visits so that women can predict when support will be available, and that it is tailored to the setting and the needs of the population group. Support is likely to be more effective in settings with high initiation rates. Support may be offered either by professional or lay/peer supporters, or a combination of both. Strategies that rely mainly on face-to-face support are more likely to succeed with women practising exclusive breastfeeding.

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.

Effectiveness of the Baby Friendly Community Initiative in Italy: a non-randomised controlled study

OBJECTIVE

To assess the effectiveness of the Baby Friendly Community Initiative (BFCI) on exclusive breast feeding at 6 months.

DESIGN

Controlled, non-randomised trial.

SETTING

18 Local Health Authorities in 9 regions of Italy.

PARTICIPANTS

5094 mother/infant dyads in 3 cohorts were followed up to 12 months after birth in 3 rounds of data collection: at baseline, after implementation of the intervention in the early intervention group and after implementation in the late intervention group. 689 (14%) dyads did not complete the study.

INTERVENTION

Implementation of the 7 steps of the BFCI.

MAIN OUTCOME MEASURES

The rate of exclusive breast feeding at 6 months was the primary outcome; breast feeding at discharge, 3 and 12 months was also measured.

RESULTS

The crude rates of exclusive breast feeding at discharge, 3 and 6 months, and of any breast feeding at 6 and 12 months increased at each round of data collection after baseline in the early and late intervention groups. At the end of the project, 10% of infants were exclusively breast fed at 6 months and 38% were continuing to breast feed at 12 months. However, the comparison by adjusted rates and logistic regression failed to show statistically significant differences between groups and rounds of data collection in the intention-to-treat analysis, as well as when compliance with the intervention and training coverage was taken into account.

CONCLUSIONS

The study failed to demonstrate an effect of the BFCI on the rates of breast feeding. This may be due, among other factors, to the time needed to observe an effect on breast feeding following this complex intervention.

An evaluation of the effects of a breastfeeding support program on health outcomes

OBJECTIVE

To estimate the causal effect of a Michigan peer counselor (PC) breastfeeding support program for low-income women on infant health outcomes.

DATA SOURCES

Program referral forms, program forms (enrollment, birth, and exit data), and state administrative data from the Women Infants and Children program, Medicaid, and Vital Records.

STUDY DESIGN

Quasi-random enrollment due to the excess demand for PC breastfeeding support services allowed us to compare the infants of women who requested services and were enrolled in the program (the treatment group, N = 274) to the infants of women who requested services and were not enrolled (the control group, N = 572). Data were analyzed using regression.

PRINCIPAL FINDINGS

The PC program increased the fraction breastfeeding at birth by 19.3 percent and breastfeeding duration by 2.84 weeks. Program participation also reduced the fraction of infants with gastrointestinal disorders by a statistically significant 7.9 percent. The program, if anything, increased the overall health care utilization.

CONCLUSIONS

This Michigan PC breastfeeding support program resulted in improvements in breastfeeding and infant health outcomes as measured by the diagnosis of ailments while increasing health care utilization.

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.

A controlled study on baby-friendly communities in Italy: methods and baseline data

AIM

This study reports the research methods and baseline data of a project aimed at assessing the effect of an intervention based on the 7 Steps of the Baby Friendly Community Initiative (BFCI) on the rate of exclusive breastfeeding at 6 months in Italy.

SUBJECTS AND METHODS

In this controlled, nonrandomized study, nine Local Health Authorities were assigned to an early and nine to a late intervention group. Data on breastfeeding in infants followed up from birth to 12 months were gathered at baseline and in two subsequent rounds, after the 7 Steps were implemented in the early and late intervention groups, respectively. Step-down logistic regression analysis, corrected for the cluster effect, was used to compare breastfeeding rates between groups.

RESULTS

At baseline, there were no significant differences in breastfeeding rates at birth (n=1,781) and at 3 (n=1,854), 6 (n=1,601), and 12 (n=1,510; loss to follow-up, 15.2%) months between groups. At birth, 96% of mothers initiated breastfeeding, 72% exclusively (recall from birth). At 3 months, 77% of infants were breastfed, 54% exclusively with 24-hour and 46% with 7-day recall. At 6 months, the rate of any breastfeeding was 62%, with 10% and 7% exclusive breastfeeding with 24-hour and 7-day recall, respectively. At 12 months, 31% of the children continued to breastfeed.

CONCLUSIONS

The project is ongoing and will allow estimation of the effect of the BFCI.

'McDonalds and KFC, it's never going to happen': the challenges of working with food outlets to tackle the obesogenic environment

BACKGROUND

Food outlets may make an important contribution to an obesogenic environment. This study investigated barriers and facilitators to public health work with food outlets in disadvantaged areas.

METHODS

In-depth qualitative interviews with 36 directors, managers and public health service delivery staff in a coterminous primary care trust and local authority in northwest England. Data were analysed using the constant comparative method.

RESULTS

Three interventions were available to engage with businesses; awards for premises that welcomed breastfeeding mothers or offered healthy menu options and local authority planning powers. Sensitivity to the potential conflict between activities that generate profit and those that promote health, led to compromises, such as awards for cafés that offer only one healthy option on an otherwise unhealthy menu. An absence of existing relationships with businesses and limited time were powerful disincentives to action, leading to greater engagement with public rather than private sector organizations. Hiring staff with commercial experience and incentives for businesses were identified as useful strategies, but seldom used.

CONCLUSIONS

Encouraging food outlets to contribute to tackling the obesogenic environment is a major challenge for local public health teams that requires supportive national policies. Commitment to engage with the local public health service should be part of any national voluntary agreements with industry.

Support for healthy breastfeeding mothers with healthy term babies

BACKGROUND

There is extensive evidence of important health risks for infants and mothers related to not breastfeeding. In 2003, the World Health Organization recommended infants be exclusively breastfed until six months of age, with breastfeeding continuing as an important part of the infant's diet till at least two years of age. However, breastfeeding rates in many countries currently do not reflect this recommendation.

OBJECTIVES

To assess the effectiveness of support for breastfeeding mothers.

SEARCH METHODS

We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (3 October 2011).

SELECTION CRITERIA

Randomised or quasi-randomised controlled trials comparing extra support for healthy breastfeeding mothers of healthy term babies with usual maternity care.

DATA COLLECTION AND ANALYSIS

Two review authors independently assessed trial quality and extracted data.

MAIN RESULTS

Of the 67 studies that we assessed as eligible for inclusion, 52 contributed outcome data to the review (56,451 mother-infant pairs) from 21 countries. All forms of extra support analysed together showed an increase in duration of 'any breastfeeding' (includes partial and exclusive breastfeeding) (risk ratio (RR) for stopping any breastfeeding before six months 0.91, 95% confidence interval (CI) 0.88 to 0.96). All forms of extra support together also had a positive effect on duration of exclusive breastfeeding (RR at six months 0.86, 95% CI 0.82 to 0.91; RR at four to six weeks 0.74, 95% CI 0.61 to 0.89). Extra support by both lay and professionals had a positive impact on breastfeeding outcomes. Maternal satisfaction was poorly reported.

AUTHORS' CONCLUSIONS

All women should be offered support to breastfeed their babies to increase the duration and exclusivity of breastfeeding. Support is likely to be more effective in settings with high initiation rates, so efforts to increase the uptake of breastfeeding should be in place. Support may be offered either by professional or lay/peer supporters, or a combination of both. Strategies that rely mainly on face-to-face support are more likely to succeed. Support that is only offered reactively, in which women are expected to initiate the contact, is unlikely to be effective; women should be offered ongoing visits on a scheduled basis so they can predict that support will be available. Support should be tailored to the needs of the setting and the population group.

A call for clarity in infant breast and bottle-feeding definitions for research

Unclear and inconsistent infant-feeding definitions have plagued much of breastfeeding research. To determine accurate health outcomes associated with infant feeding, it is imperative that different types of feedings be explicitly described. Definitions must be based on content, not mode of milk delivery. Five new definitions for infant feeding are provided. These definitions are operationally useful for breastfeeding researchers, allowing for the inclusion of almost every infant into an appropriate sample group.

A qualitative study of the experiences and expectations of women receiving in-patient postnatal care in one English maternity unit

BACKGROUND

Studies consistently highlight in-patient postnatal care as the area of maternity care women are least satisfied with. As part of a quality improvement study to promote a continuum of care from the birthing room to discharge home from hospital, we explored women's expectations and experiences of current in-patient care.

METHODS

For this part of the study, qualitative data from semi-structured interviews were transcribed and analysed using content analyses to identify issues and concepts. Women were recruited from two postnatal wards in one large maternity unit in the South of England, with around 6,000 births a year.

RESULTS

Twenty women, who had a vaginal or caesarean birth, were interviewed on the postnatal ward. Identified themes included; the impact of the ward environment; the impact of the attitude of staff; quality and level of support for breastfeeding; unmet information needs; and women's low expectations of hospital based postnatal care. Findings informed revision to the content and planning of in-patient postnatal care, results of which will be reported elsewhere.

CONCLUSIONS

Women's responses highlighted several areas where changes could be implemented. Staff should be aware that how they inter-act with women could make a difference to care as a positive or negative experience. The lack of support and inconsistent advice on breastfeeding highlights that units need to consider how individual staff communicate information to women. Units need to address how and when information on practical aspects of infant care is provided if women and their partners are to feel confident on the woman's transfer home from hospital.

Seeing other women breastfeed: how vicarious experience relates to breastfeeding intention and behaviour

Vicarious experience gained through seeing women breastfeed may influence infant feeding decisions and self-efficacy. Our aim was to measure the attributes of seeing breastfeeding and to investigate how these relate to feeding intention (primary outcome) and behaviour (secondary outcome). First, we developed a Seeing Breastfeeding Scale (SBS), which consisted of five attitudes (Cronbach's alpha of 0.86) to most recently observed breastfeeding: 'I felt embarrassed'; 'I felt uncomfortable'; 'I did not know where to look'; and 'It was lovely' and 'It didn't bother me'. Test-retest reliability showed agreement (with one exception, kappas ranged from 0.36 to 0.71). Second, we conducted a longitudinal survey of 418 consecutive pregnant women in rural Scotland. We selected the 259 women who had never breastfed before for further analysis. Following multiple adjustments, women who agreed that 'It was lovely to see her breastfeed' were more than six times more likely to intend to breastfeed compared with women who disagreed with the statement [odds ratio (OR) 6.72, 95% confidence interval (CI) 2.85-15.82]. Women who completed their full-time education aged 17 (OR 3.09, 95% CI 1.41-6.77) or aged 19 (OR 7.41 95% CI 2.51-21.94) were more likely to initiate breastfeeding. Women who reported seeing breastfeeding within the preceding 12 months were significantly more likely to agree with the statement 'It was lovely to see her breastfeed' (P = 0.02). Positive attitudes to recently seen breastfeeding are more important determinants of feeding intention than age of first seeing breastfeeding, the relationship to the person seen and seeing breastfeeding in the media.

Evaluation of a practice-development initiative to improve breastfeeding rates

The benefits of breastfeeding for infant, mother, family, and community are well recognized, and increasing breastfeeding rates is considered an important health-promotion strategy. Improving breastfeeding knowledge and practice among individuals caring for breastfeeding women is considered an important aspect of this strategy. The practice-development initiative described in this article aimed to improve hospital-based breastfeeding rates through the implementation of The Ten Steps to Successful Breastfeeding. The initiative included the development and implementation of an education program aimed at changing and improving breastfeeding practices. The program was evaluated in three ways: changes in breastfeeding rates at hospital discharge; client preparation for breastfeeding and satisfaction during the postnatal period; and staff knowledge and skills.

Protection, promotion and support of breast-feeding in Europe: progress from 2002 to 2007

OBJECTIVE

To assess progress in the protection, promotion and support of breast-feeding in Europe.

DESIGN

Data for 2002 and 2007 were gathered with the same questionnaire. Of thirty countries, twenty-nine returned data for 2002, twenty-four for 2007.

RESULTS

The number of countries with national policies complying with WHO recommendations increased. In 2007, six countries lacked a national policy, three a national plan, four a national breast-feeding coordinator and committee. Little improvement was reported in pre-service training; however, the number of countries with good coverage in the provision of WHO/UNICEF courses for in-service training increased substantially, as reflected in a parallel increase in the number of Baby Friendly Hospitals and the proportion of births taking place in them. Little improvement was reported as far as implementation of the International Code on Marketing of Breastmilk Substitutes is concerned. Except for Ireland and the UK, where some improvement occurred, no changes were reported on maternity protection. Due to lack of standard methods, it was difficult to compare rates of breast-feeding among countries. With this in mind, slight improvements in the rates of initiation, exclusivity and duration were reported by countries where data at two points in time were available.

CONCLUSIONS

Breast-feeding rates continue to fall short of global recommendations. National policies are improving slowly but are hampered by the lack of action on maternity protection and the International Code. Pre-service training and standard monitoring of breast-feeding rates are the areas where more efforts are needed to accelerate progress.

Policy and public health recommendations to promote the initiation and duration of breast-feeding in developed country settings

Objective

To develop policy and public health recommendations for implementation at all levels by individuals and organisations working in, or related to, the field of breast-feeding promotion in developed country settings, where breast-feeding rates remain low.

Design

Two research phases, comprising (i) an assessment of the formal evidence base in developed country settings and (ii) a consultation with UK-based practitioners, service managers and commissioners, and representatives of service users. The evidence base included three systematic reviews and an Evidence Briefing. One hundred and ten studies evaluating an intervention in developed country settings were assessed for quality and awarded an overall quality rating. Studies with a poor quality rating were excluded. The resulting seventy studies examined twenty-five types of intervention for breast-feeding promotion. These formed the basis of the second consultation phase to develop the evidence-based interventions into recommendations for practice, which comprised (i) pilot consultation, (ii) electronic consultation, (iii) fieldwork meetings and (iv) workshops. Draft findings were synthesised for two rounds of stakeholder review conducted by the National Institute for Health and Clinical Excellence.

Results

Twenty-five recommendations emerged within three complementary and necessary categories, i.e. public health policy, mainstream clinical practice and local interventions.

Conclusions

The need for national policy directives was clearly identified as a priority to address many of the barriers experienced by practitioners when trying to work across sectors, organisations and professional groups. Routine implementation of the WHO/UNICEF Baby Friendly Initiative across hospital and community services was recommended as core to breast-feeding promotion in the UK. A local mix of complementary interventions is also required.

Correlations between welfare initiatives and breastfeeding rates: a 10-year follow-up study

AIM

To evaluate the prevalence of full breastfeeding during the first 6 months of age and to discover if training programs for health caregivers and welfare initiatives at the community level could improve breastfeeding rates.

METHODS

Newborn babies with gestational age > or =36 weeks and birth weight > or =2500 g, discharged from the hospital within the first week of life, without any underlying pathologies, were enrolled in 3-month long sample periods between 1997 and 2006. A questionnaire was distributed to the mothers, to be completed and submitted before hospital discharge. Data were collected from phone interviews at 1, 3 and 6 months.

RESULTS

Full breastfeeding rates at hospital discharge showed an oscillation between 69.9% and 87%. The rate decreased in the following months and reached very low levels at 6 months of age (< 24%), with the exception of the last sample period in 2006 (44.9%).

CONCLUSION

A simple questionnaire, combined with standardized phone interviews, can be easily reproduced and may be used as an indicator for quality of neonatal care at hospital nurseries. A social and cultural change of the whole community towards breastfeeding promotion will result in increasing breastfeeding rates.

A quasi-experimental evaluation of a breastfeeding support program for low income women in Michigan

We examined the effectiveness of a peer counseling breastfeeding support program for low income women in Michigan who participate in WIC. Because there was more demand for services than could be met by the program, many women who requested services were not subsequently contacted by a peer counselor. We used a quasi-experimental methodology that utilized this excess demand for services to estimate the causal effect of the support program on several breastfeeding outcomes. We relied on data derived from administrative and survey-based sources. After providing affirmative evidence that our key assumption is consistent with the data, we estimated that the program caused the breastfeeding initiation to increase by about 27 percentage points and the mean duration of breastfeeding to increase by more than 3 weeks. The support program we evaluated was very effective at increasing breastfeeding among low income women who participate in WIC, a population that nationally breastfeeds at rates well below the national average and below what is recommended by public health professionals. Given the substantial evidence that breastfeeding is beneficial for both the child and mother, the peer counseling breastfeeding support program should be subjected to a cost/benefit analysis and evaluated at other locales.

Health professionals' advice for breastfeeding problems: not good enough!

Jane Scott and colleagues have recently published a paper in the International Breastfeeding Journal showing that health professionals are still giving harmful advice to women with mastitis. We see the management of mastitis as an illustration of health professionals' management of wider breastfeeding issues. If health professionals don't know how to manage this common problem, how can they be expected to manage less common conditions such as a breast abscess or nipple/breast candidiasis? There is an urgent need for more clinical research into breastfeeding problems and to improve the education of health professionals to enable them to promote breastfeeding and support breastfeeding women.

Developing evidence-based recommendations in public health--incorporating the views of practitioners, service users and user representatives

BACKGROUND

Guidance based on a systematic assessment of the evidence base has become a fundamental tool in the cycle of evidence-based practice and policy internationally. The process of moving from the formal evidence base derived from research studies to the formation and agreement of recommendations is however acknowledged to be problematic, especially in public health; and the involvement of practitioners, service commissioners and service users in that process is both important and methodologically challenging.

AIM

To test a structured process of developing evidence-based recommendations in public health while involving a broad constituency of practitioners, service commissioners and service user representatives.

METHODS

As part of the development of national public health recommendations to promote and support breastfeeding in England, the methodological challenges of involving stakeholders were examined and addressed. There were three main stages: (i) an assessment of the formal evidence base (210 studies graded); (ii) electronic and fieldwork-based consultation with practitioners, service commissioners and service user representatives (563 participants), and an in-depth analytical consultation in three 'diagonal slice' workshops (89 participants); (iii) synthesis of the previous two stages.

RESULTS AND CONCLUSIONS

The process resulted in widely agreed recommendations together with suggestions for implementation. It was very positively evaluated by participants and those likely to use the recommendations. Service users had a strong voice throughout and participated actively. This mix of methods allowed a transparent, accountable process for formulating recommendations based on scientific, theoretical, practical and expert evidence, with the added potential to enhance implementation.