Factors associated with exclusive breastfeeding in the first six months of life in Brazil: a systematic review

Continued Breastfeeding in a Birth Cohort in the Western Amazon of Brazil: Risk of Interruption and Associated Factors

BACKGROUND

Continued breastfeeding reduces infant mortality and provides nutritional, immunological, and developmental benefits for the child.

OBJECTIVES

A prospective cohort study conducted in 2015 followed 608 children who were breastfed between 6 and 24 months. The study assessed the risk of breastfeeding interruption at 12, 18, and 24 months, as well as the factors associated with this outcome, in a cohort of newborns in Rio Branco, using the life table method.

METHODS

The factors associated with breastfeeding cessation and their 95% confidence intervals (CI95%) were analyzed using both crude and adjusted Cox proportional hazards regression in a hierarchical model. The risks of breastfeeding cessation at 12, 18, and 24 months were 19%, 65%, and 71%, respectively.

RESULTS

Factors positively associated with the risk of breastfeeding cessation include the use of a pacifier before 6 weeks of age (HR = 1.62; CI: 95% 1.24-2.11) and the use of a bottle during the first year of life (HR = 1.41; CI: 95% 1.11-1.78). Maternal return to work after the birth of the baby (HR = 0.78; CI: 95% 0.62-0.97) was found to be negatively associated with the risk of breastfeeding interruption.

CONCLUSIONS

Early pacifier use before 6 weeks and the introduction of a bottle in the first year affect continued breastfeeding. Maternal employment was associated with reduced risk of breastfeeding cessation, contrary to most studies.

Infant and Maternal Morbidity Symptoms as Predictors for the Interruption of Exclusive Breastfeeding in Lima, Peru: A Prospective Study

INTRODUCTION

The global prevalence of exclusive breastfeeding for 6 months is 48%. This analysis examined the relationship between infant and maternal morbidity symptoms and the interruption of exclusive breastfeeding.

METHODS

Data from a cohort study among women living in a peri-urban community in Peru were used. Data were collected during pregnancy, birth, and the first 6 months postpartum among 179 dyads...

RESULTS

After the first month, interruption of exclusive breastfeeding was almost twofold (adjusted odds ration [aOR] = 1.99, 95% confidence interval [CI]: 1.14, 3.45) more likely among infants with symptoms (e.g., diarrhea, cough) than those without. Maternal morbidity symptoms (e.g., gastrointestinal, respiratory) and breast problems were positively associated with interruption of exclusive breastfeeding throughout the first 6 months (aOR = 1.77, 95% CI: 1.11, 2.82 and aOR = 3.23, 95% CI: 1.84, 5.69, respectively).

DISCUSSION

Mother-infant dyads often experience illness symptoms that are not contraindications to breastfeeding. Health professionals need to reinforce that exclusive breastfeeding should continue during illness.

Prevalence and predictors of breastfeeding in the MINA-Brazil cohort

OBJECTIVE

To describe the prevalence and factors associated with exclusive (EBF) and continued breastfeeding (BF) practices among Amazonian children.

METHODS

Data from 1,143 mother-child pairs recorded on the Maternal and Child Health and Nutrition in Acre (MINA-Brazil) birth cohort were used. Information on EBF and BF was collected after childbirth (July 2015-June 2016) and during the follow-up visits at 1 and 6 months postpartum, 1, 2, and 5 years of age. For longitudinal analysis, the outcomes were EBF and BF duration. Probability of breastfeeding practices were estimated by Kaplan-Meier survival analysis. Associations between baseline predictors variables and outcomes among children born at term were assessed by extended Cox regression models.

RESULTS

EBF frequencies (95% confidence interval [95%CI]) at 3 and 6 months of age were 33% (95%CI: 30.2-36.0) and 10.8% (95%CI: 8.9-12.9), respectively. Adjusted hazard ratio for predictors of early EBF cessation were: being a first-time mother = 1.47 (95%CI: 1.19-1.80), feeding newborns with prelacteals = 1.70 (95%CI: 1.23-2.36), pacifier use in the first week of life = 1.79 (95%CI: 1.44-2.23) or diarrhea in the first two weeks of life = 1.70 (95%CI: 1.15-2.52). Continued BF frequency was 67.9% (95%CI: 64.9-70.8), 29.3% (95%CI: 26.4-32.4), and 1.7% (95%CI: 0.9-2.8) at 1, 2 and 5 years of age, respectively. Adjusted hazard ratio for predictors of early BF cessation were: male sex = 1.23 (95%CI: 1.01-1.49), pacifier use in the first week of life = 4.66 (95%CI: 2.99-7.26), and EBF less than 3 months = 2.76 (95%CI: 1.64-4.66).

CONCLUSIONS

EBF and continued BF duration among Amazonian children is considerably shorter than recommendations from the World Health Organization. Significant predictors of breastfeeding practices should be considered for evaluating local strategies to achieve optimal breastfeeding practices.

Nipple shield use in the maternity ward increases risk of exclusive breastfeeding interruption in the first six months of infant's life

OBJECTIVE

The objective of this study was to investigate the association between use of silicone nipple shields in the maternity ward and exclusive breastfeeding interruption in the first 6 months of the infant's life.

DESIGN

Cohort study.

SETTING

Interviews were conducted personally at the mother's home at 1 and 6 months postpartum and by telephone at 2 and 4 months.

PARTICIPANTS

287 mother-infant dyads.

METHODS

Lactating mothers were randomly selected at two maternity wards (one public, one private) in Porto Alegre, Brazil. Data were analyzed using Kaplan-Meier survival curves and Cox multivariate regression. The outcome of interest was exclusive breastfeeding interruption before 6 months of the infant's life.

FINDINGS

Nipple shields were used by 6.2 % of the women in the public maternity ward and by 25.8 % of those in the private setting. Median duration of exclusive breastfeeding was 11 days (95 %CI 0.0-36.9) among women who used the accessory vs. 89 days (95 %CI 60.8-117.2) among those who did not. Nipple shield use in the maternity ward was associated with exclusive breastfeeding interruption before 6 months of infant's life (adjusted risk ratio = 1.47; 95 %CI 1.01-2.15). The risk was higher in the first months of breastfeeding, ranging from 2.0 to 1.47 in the first and sixth months, respectively.

CONCLUSIONS

The use of silicone nipple shields in the maternity ward increased the risk of exclusive breastfeeding interruption before 6 months of the infant's life, especially in the first months. These findings suggest caution in recommending this accessory to new mothers.

Factors associated with intention to breastfeed in Vietnamese mothers: A cross-sectional study

INTRODUCTION

Breastfeeding has many benefits for mothers, children, and the environment over both the short and longr-term. Prenatal intention to breastfeed is a powerful predictor of short-term breastfeeding outcomes.

OBJECTIVE

This study aims to analyze breastfeeding intentions, including the intention to feed infants with breastmilk only and to continue exclusive breastfeeding to 6 months among pregnant mothers in Hanoi, Vietnam.

METHODS

The analysis included 1230 singleton mothers, between 24- and 36-weeks' gestation, who attended antenatal clinics in two hospitals in Hanoi in 2020.

RESULTS

The proportion of mothers with an "breastfeeding intention" (i.e., intention to feed an infant with breastmilk only) and "exclusive breastfeeding intention" to 6 months was 59.9% and 41.7%, respectively. Mothers who were 25 years or older (aOR = 1.35, 95%CI:1.00-1.81), had an undergraduate educational degree or higher (aOR = 1.38, 95%CI: 1.08-1.76), had observed another woman breastfeeding (aOR = 1.43, 95%CI: 1.03-2.00), were not living with parents-in-law (aOR = 1.34, CI: 1.05-1.70), and were multiparous (aOR = 1.60, 95%CI: 1.16-2.19) had higher odds of "exclusive breastfeeding intention" to 6 months. Among primiparous women, those who thought their husbands support breastfeeding were more likely to intend to feed an infant with breastmilk only. Among multiparous women, feeding the previous child with breastmilk exclusively before the introduction of complementary foods and not giving solid foods together with water until 6 months, were significant predictors for both breastfeeding intentions.

CONCLUSION

Mothers without exclusive breastfeeding experience should be provided with greater support to promote exclusive breastfeeding intention and outcomes.

Factors associated with breastfeeding abandonment in the first month after the mother's return to work

The return to work of lactating mothers has been identified as an important risk factor for breastfeeding interruption. We proposed to identify factors associated with breastfeeding abandonment in the first month after return. 252 women working at a hospital who had children aged 12 to 36 months and who were still breastfeeding when returned to work answered a questionnaire containing questions on sociodemographic characteristics, pregnancy, childbirth, breastfeeding and work-related factors. The associations were estimated using adjusted prevalence ratio (aPR), calculated with the hierarchical Poisson multivariable regression model. The following factors showed a significant association with breastfeeding abandonment: using a pacifier (aPR 4.58), cohabiting with someone other than partner (aPR 3.77), having no intention or having doubts about maintaining breastfeeding after returning (aPR 3.39), having a college degree (aPR 2.66), having no support from the infant's caregiver (aPR 2.26), and infant being older when the woman returned to work (PR 1.16 for each additional month of infant age). Longer duration of exclusive breastfeeding was a protective factor (aPR 0.990). Most of the factors associated with discontinuation of breastfeeding in the first month after the mother's return to work are not directly related to the woman's work.

Current prevalence, changes, and determinants of breastfeeding practice in China: data from cross-sectional national household health services surveys in 2013 and 2018

BACKGROUND

The World Health Organization and the government of China have made many efforts to improve breastfeeding practices. The evidence of breastfeeding practices over the past decade in China is limited. The current study aimed to describe the current prevalence, variation trends, and determinants of breastfeeding practices in China using data from the National Household Health Service Surveys (NHHSS) in 2013 and 2018.

METHODS

Women who had at least one live birth in the five years from the 2013 NHHSS numbered 10,544, and 12,766 women from the 2018 NHHSS were included in the current study. The rates of breastfeeding, early initiation of breastfeeding within the first hour after birth, exclusive breastfeeding for at least six months since birth, and continued breastfeeding accompanied by adequate complementary feeding for over two years were measured. Logistic regressions were performed to study the associations between breastfeeding practices and maternal-based, healthcare-based, and infant-based characteristics.

RESULTS

In the 2018 survey, the rates of practiced any breastfeeding, early initiation of breastfeeding within the first hour after birth, exclusive breastfeeding for at least six months, and continued breastfeeding for over two years were 91.50%, 28.16%, 47.90%, and 4.78%, respectively, showing significant improvements compared to the 2013 survey period. Women who received high education, were from a household with high incomes, had more than one child, and had more antenatal and postnatal visits, were more likely to practice breastfeeding and initiate it within the first hour, but they were less likely to breastfeed the infants for two years. Births by caesarean section and low birthweight were associated with worse breastfeeding practices.

CONCLUSIONS

The rates of practicing breastfeeding and exclusive breastfeeding for six months or more in China improved over the past decades, suggesting improved awareness and knowledge of breastfeeding among women. However, individual and social factors may impact practices of early initiation and continued breastfeeding. Strengthening breastfeeding support from family, community, and health professionals (e.g., family member engagement, friendly work environment, and professional consultation, etc.) during the postpartum and infant period may improve women's confidence in breastfeeding practices.

Systematic review and meta-analysis of the prevalence and determinants of exclusive breastfeeding in the first six months of life in Ghana

BACKGROUND

Exclusive breastfeeding is a public health priority in sub-Saharan Africa. However, systematic reviews on its determinants in Ghana remain scarce. Therefore, we systematically reviewed the prevalence and determinants of exclusive breastfeeding in children 0-6 months in Ghana.

METHODS

We conducted systematic searches in Embase, Medline, and Africa-Wide Information from the databases' inception until February 2021 for studies that assessed the prevalence and determinants of exclusive breastfeeding in children 0-6 months in Ghana. Random-effects meta-analysis was used to estimate the pooled prevalence of exclusive breastfeeding and narrative synthesis to summarise the determinants. We calculated the proportion of total variability that was due to between study heterogeneity using I² statistics, and Egger's test assessed publication bias. The review is registered with PROSPERO, CRD42021278019.

RESULTS

Out of the 258 articles identified, 24 met the inclusion criteria. Most of the included studies were cross-sectional and were published between 2005 and 2021. The pooled prevalence of exclusive breastfeeding (EBF) among children 0-6 months in Ghana was 50% (95%CI 41.0-60.0%). The prevalence was higher in rural areas (54%) than in urban areas (44%). Several factors were identified as facilitators of EBF, including older maternal age, self-employment, unemployment, living in a large house, being a house owner, giving birth in a health facility, non-caesarean delivery, adequate antenatal attendance, counselling services, participation in support groups, adequate knowledge about EBF, positive attitude towards EBF, and higher maternal education among rural dwellers. Additionally, having an average birthweight facilitated EBF. Barriers to EBF were also identified, including higher maternal education among urban dwellers, less than three months of maternity leave, maternal HIV-positive status, the experience of partner violence, lack of access to radio, inadequate breastmilk production, lack of family support, having a partner who wants more children, counselling on complementary feeding, healthcare worker recommendation of complementary feed, single marital status, and infant admission to neonatal intensive care units.

CONCLUSION

In Ghana, EBF rates are low, with only about half of all children aged 0-6 months breastfed exclusively. A multi-dimensional approach is required to tackle the diverse sociodemographic, obstetric, and infant-related issues that hinder EBF practice in Ghana.

Positive influencers for early initiation of breastfeeding

Background

The practice of newborns being put to the breasts soon after birth results in a reduction in neonatal mortality. Factors such as antenatal care attendance, delivery at the Baby Friendly Hospital Initiative (BFHI) facility, mode of delivery, number of children, and various socio-cultural practices are found to have a positive impact on the early initiation of breastfeeding. The present study was performed to determine the socio-demographic, maternal, and neonatal factors affecting the early initiation of breastfeeding.

Methodology

A hospital-based cross-sectional study was performed at the Immunization Clinic and Nursery situated in a government tertiary care hospital for assessing the pattern of breastfeeding initiation. Children born at the hospital and also those reporting to the clinic from outside were included in the study.

Results

Breastfeeding initiation within 1 hour after delivery was only 30%, and 9% did not initiate breastfeeding at all. About half of the reasons for not initiating breastfeeding were related to mothers, followed by 30% related to babies.

Conclusion

Upon regression analysis, it was found that urban residence, higher educational status of the mothers, and those mothers who were not counselled on breastfeeding during antenatal visits had higher odds of not initiating breastfeeding and that was statistically significant.

Breastfeeding Duration and Exclusivity Among Early-Term and Full-Term Infants: A Cohort Study

Background

As compared to full-term infants (39-41 weeks of gestation), early-term infants (37-38 wk) are at increased risk of adverse outcomes, including shorter exclusive breastfeeding (EB) duration and continued breastfeeding.

Objectives

To compare early-term with full- and late-term infants regarding the prevalence of EB at 3 mo and any breastfeeding at 12 mo.

Methods

Data sets from two population-based birth cohorts conducted in the city of Pelotas, Brazil, were combined. Only term infants (37 0/7 through 41 6/7 weeks of gestation) were included in the analyses. Early-term infants (37 0/7 through 38 6/7 wk) were compared to the remaining term infants (39 0/7 through 41 6/7 wk). Information on breastfeeding was gathered through maternal interviews at the 3-mo and 12-mo follow-ups. The prevalence of EB at 3 mo and any breastfeeding at 12 mo with 95% CIs were calculated. Crude and adjusted prevalence ratios (PRs) were obtained through Poisson regression.

Results

A total of 6395 infants with information on gestational age and EB at 3 mo and 6401 infants with information on gestational age and any breastfeeding at 12 mo were analyzed. There was no difference between early-term infants and the remaining term infants regarding the prevalence of EB at 3 mo (29.2% and 27.9%, respectively) (P = 0.248). Prevalence of any breastfeeding at 12 mo was lower in early-term infants than among those born between 39 0/7 and 41 6/7 weeks of gestation (38.2% compared with 42.4%) (P = 0.001). In the adjusted analysis, the PR for any breastfeeding at 12 mo was 15% lower in the early-term group than in the remaining term infants (PR = 0.85; 95% CI: 0.76-0.95) (P = 0.004).

Conclusions

The prevalence of EB at 3 mo was similar among term infants. Nonetheless, in comparison with the remaining infants born at term, early-term infants were at increased risk of having been weaned before reaching 12 mo of age. Curr Dev Nutr 2023;xx:xx.

Effects of the experience of breastfeeding-friendly practices and breastfeeding intention and self-efficacy on breastfeeding behavior: a cohort study in Taiwan

BACKGROUND

Approximately 80% of births in Taiwan occurred in Baby-Friendly accredited facilities, although the trend of exclusively breastfeeding infants until 6 months of age has stagnated in the last ten years. To guide breastfeeding promotion interventions during postnatal stays and encourage mothers to continue breastfeeding for the first 6 months, factors associated with breastfeeding behaviors to 6 months post-delivery must be investigated. This study explored the relationships among breastfeeding intention, experience of breastfeeding-friendly practices, breastfeeding self-efficacy, and breastfeeding behavior at four and 6 months after childbirth.

METHODS

In this longitudinal cohort study, women who gave birth to healthy newborns at two Baby-Friendly hospitals in Taiwan and who had initiated breastfeeding were recruited two to 4 days after giving birth. Data were collected three to 5 days after childbirth during hospitalization and at one, two, four, and 6 months after childbirth using a self-developed questionnaire to measure breastfeeding intention and the experience of breastfeeding-friendly practices, and the traditional Chinese version of the Breastfeeding Self-Efficacy Scale-Short Form to measure self-efficacy.

RESULTS

A total of 155 women completed the questionnaires five times within 6 months. The determinants of exclusive breastfeeding at 4 months and any breastfeeding at 6 months were the intention to breastfeed for over 6 months; a higher score for the experience of breastfeeding-friendly practices; and a higher level of breastfeeding self-efficacy during that period. The experience of breastfeeding-friendly practices during hospitalization did not predict breastfeeding behavior at 4 and 6 months. Intending to breastfeed for less than 4 months and lower breastfeeding self-efficacy during the hospital stay were both associated with shorter breastfeeding durations of less than 6 months after childbirth.

CONCLUSIONS

Longer intended duration of breastfeeding, sustaining breastfeeding-friendly practices after discharge, and maintenance of a higher level of breastfeeding self-efficacy were the determinants of breastfeeding at 4 and 6 months. Healthcare professionals in Taiwan must support breastfeeding-friendly practices and consider interactive interventions to promote continued breastfeeding at different stages during the first 6 months after childbirth on the basis of the mother's breastfeeding plan and breastfeeding self-efficacy during their postnatal hospitalization.

Time trends in the prevalence and determinants of age-appropriate breast feeding among children aged 0-23 months in Ghana: a pooled analysis of population-based surveys, 2003-2017

OBJECTIVE

We assessed the sociodemographic and maternal-child characteristics associated with age-appropriate breast feeding among children aged 0-23 months in Ghana.

METHODS

We pooled data on 12 743 children aged 0-23 months from three Demographic and Health Surveys (2003, 2008 and 2014) and three Multiple Indicator Cluster Surveys (2006, 2011 and 2017-2018). The outcome was age-appropriate breast feeding from birth to 23 months, with age-appropriate breast feeding defined as exclusive breast feeding at 0-5 months (ie, at less than 6 months) and breastfeeding alongside appropriate complementary feeding at 6-23 months. Potential determinants were maternal-child sociodemographic, obstetric and healthcare factors. Logistic regression was used to determine the factors associated with age-appropriate breast feeding. We accounted for the complex sampling design of the cross-sectional surveys in the analysis.

RESULTS

Most children aged 0-3 months were exclusively breastfed. Among children aged 4-5 months, the most common feeding pattern was breastfeeding alongside water and/or solid foods. Exclusive breastfeeding prevalence in children less than 6 months peaked in 2008 at 62.8% and declined to 42.9% in 2017. For 6-11 month olds, the percentage experiencing age-appropriate breast feeding has been stable over the last four surveys, ranging from 79.3% in 2008 to 81.1% in 2017. Age-appropriate breast feeding in 12-23 month olds declined from 77.8% in 2003 to 61.2% in 2017. Rural residence, younger age, non-facility births and multiple births were associated with decreased odds of exclusively breast feeding. For 6-11 month olds, age-appropriate breast feeding was less likely if the woman did not receive postnatal care. Younger age, being unmarried, high income, wanting a child later and earlier birth order were associated with decreased odds of age-appropriate breast feeding in 12-23 month olds.

CONCLUSION

Ghanaian children are now less likely to be exclusively breastfed than they were a decade ago. To succeed, breastfeeding promotion programmes should adopt approaches that address the predictors of suboptimal breast feeding at each age, as identified in this study.

Breastfeeding Practices Before and During the COVID-19 Pandemic in Fortaleza, Northeastern Brazil

BACKGROUND

Physical distancing associated with the COVID-19 pandemic may lead to suboptimal maternal mental health, social support after birth, and infant feeding practices.

RESEARCH AIMS

To compare breastfeeding prevalence in participants who were pregnant at a time when strict physical distancing measures were imposed in Fortaleza, the capital of Ceará state, Brazil, with the pre-pandemic breastfeeding levels, and to assess the association of breastfeeding prevalence with maternal common mental disorders, and sociodemographic and health predictors.

METHOD

A cross-sectional prospective two-group comparison design using two population-based surveys was carried out in Fortaleza before and after the pandemic. Participants (n = 351) who had a live birth in Fortaleza in July or August 2020, and participants (n = 222) who had a child younger than 12 months in 2017 were surveyed. Crude and adjusted multinomial logistic regressions with robust variance were used to estimate risk ratios and 95% confidence intervals (CI).

RESULTS

Similar prevalence of exclusive breastfeeding were observed in 2021 (8.1%) and 2017 (8.5%; p = .790). An increase in predominant (2.2% vs. 13.4%; p < .001) and a decrease in complementary breastfeeding (64.0% vs. 48.4%; p = .037) was observed in 2021, compared to 2017. The prevalence of maternal common mental disorders also increased in 2021 (17.6% vs. 32.5%, p < .001). No statistically significant associations were found between breastfeeding patterns, maternal common mental disorders, and other predictors in 2017 or 2021.

CONCLUSIONS

Participants who delivered during the COVID-19 pandemic delayed solid foods introduction and breastfed predominantly longer than participants during the pre-pandemic period. While common mental disorders significantly increased, they were not associated with differences in breastfeeding.

Determinants of the interruption of exclusive breastfeeding at the 30th day after birth

Objective:

To estimate the prevalence of exclusive breastfeeding (EBF), introduction of water, herbal teas, or other milks, as well as to identify the factors associated with the interruption of EBF at the 30^th day after birth.

Methods:

This is a cross-sectional study using structured and pretested questionnaires applied to 310 mothers in two moments: in person, at the maternity ward; and at the time the infant was 30 days of age, by telephone call. Descriptive statistics and multivariate Poisson regression, following a multilevel hierarchical model according to the proximity to the outcome, were used to estimate the association between dependent and independent variables.

Results:

The maintenance of EBF at 30 days of age of the infant occurred in 85.2% of the sample, 1.6% receiving water, 11.5% herbal teas, and 8.2% other milk. Predictors for EBF interruption in the univariate analysis were the mothers’ return to work or study activities shortly after the baby's birth (IR 2.88; 95%CI 1.14–7.25) and the use of a pacifier (IR 3.29; 95%CI 1.52–6.22). The interruption of EBF was lower in the group of participants who received support from the infant's maternal grandmother (IR 2.71; 95%CI 1.11–6.56) and their partner (IR 4.78; 95%CI 1.90–12.06). After a multivariate analysis, only the use of a pacifier (IR 5.47; 95%CI 2.38–19.3) and the partner's support (IR 6.87; 95%CI 2.04–23.1) maintained the association with the outcome.

Conclusions:

The prevalence of EBF found in this study can be considered good, and future interventions aimed at increasing the duration of EBF in this population should take into account the participation of the partner and the reinforcement for not introducing the pacifier.

The relationship between maternal perception of social support and breastfeeding patterns

BACKGROUND

Breastfeeding is beneficial for the health of infants and mothers. It is a complex social behavior that may be influenced by social support. The study aimed to determine the relationship between perceived social support of breastfeeding women and their breastfeeding patterns.

MATERIALS AND METHODS

The research was a cross-sectional study on 300 mothers with 6-month infants or younger who were selected randomly. The data collection tool consisted standard social support and breastfeeding patterns questionnaires. We analyzed data using descriptive and analytical tests and SPSS 18 at a significance level of < 0.05.

RESULTS

The results indicated that 85%, 82.2%, and 38% of the infants were exclusively breastfed at 1 week, 4, and 6 months after delivery, respectively. The result of post hoc LSD test indicated that the mean number of supporters for mothers, who were in the 6^th month of delivery, was significantly lower than other times (P = 0.001). The one-way analysis of variance indicated no significant difference between perceived satisfaction of social support at different periods after delivery (P = 0.92). Despite the present results, which indicated that the number of supporters and scores of satisfaction with support in exclusive breastfeeding were higher than other groups, the differences were not statistically significant.

CONCLUSIONS

The mean number of supporters was less in women, who had 6-month-old infants, than mothers who had just given birth. It seems mothers with supplements and formula feeding patterns, such as breastfeeding mothers, may be supported to use these methods. Therefore, more studies are suggested on this field.

Determinantes para a interrupção do aleitamento materno exclusivo aos 30 dias de vida

RESUMO Objetivo: Estimar a prevalência de aleitamento materno exclusivo (AME), introdução de água, chás ou outros leites, bem como identificar os fatores associados à interrupção do AME aos 30 dias de vida. Métodos: Estudo transversal que utilizou questionários estruturados e pré-testados, aplicados a 310 mães em dois momentos: presencialmente, na maternidade, e aos 30 dias de vida da criança, mediante ligação telefônica. Estatística descritiva e regressão multivariada de Poisson, seguindo modelo hierárquico multiníveis conforme a proximidade com o desfecho, estimaram a associação entre as variáveis dependentes e independentes. Resultados: A manutenção do AME aos 30 dias de idade da criança ocorreu em 85,2% da amostra, e 1,6 % receberam água, 11,5 % chás e 8,2% outro leite. Preditores para a interrupção do AME na análise univariada foram o retorno das mães ao trabalho ou estudo logo após o nascimento do bebê (razão de incidência — RI 2,88; intervalo de confiança — IC95% 1,14–7,25) e o uso de chupeta (RI 3,29; IC95% 1,52–6,22). A interrupção do AME foi menor no grupo de participantes que recebeu apoio da avó materna do lactente (RI 2,71; IC95% 1,11–6,56) e do companheiro (RI 4,78; IC95% 1,90–12,06). Após a análise multivariada, apenas o uso de chupeta (RI 5,47; IC95% 2,38–19,3) e o apoio do companheiro (RI 6,87; IC95% 2,04–23,1) mantiveram associação com o desfecho. Conclusões: A prevalência de AME encontrada neste estudo pode ser considerada boa, e futuras intervenções que visem ao aumento da duração do AME nessa população devem levar em consideração a participação do companheiro e o reforço para a não introdução da chupeta.

Exclusive breastfeeding frequency at 30 days of life: review of longitudinal studies

Abstract Early life feeding can affect children’s development and survival. Adherence to breastfeeding practices and regular monitoring is essential. This study aims to conduct an integrative review of longitudinal studies on the frequency of exclusive breastfeeding (EBF) at 30 days of life. Articles were retrieved from the PubMed and LILACS databases. The combination of descriptors used was: “prospective study” and “breast feeding.” The search was limited to articles published between 2015 and 2020 in English, Spanish, and Portuguese. We selected 17 original studies. Despite their methodological differences regarding sample size and type, follow-up period, and EBF definition and measurement method, results indicated a high rate of breastfeeding initiation (≥86%) and a wide variation in the occurrence of EBF at 30 days of life (4.5% - 86%) with substantial decline (<60%) in 63% of the investigated areas. These results are far from complying with the recommendation from the World Health Organization of maintaining EBF up to the sixth month of a child’s life and point to the need for further investigations with a standardized methodology to allow for comparisons within and between countries, aiming at planning actions which support breastfeeding.

Frequência do aleitamento materno exclusivo aos 30 dias de vida: revisão de estudos longitudinais

Resumo A nutrição adequada no início da vida pode afetar o desenvolvimento e a sobrevivência infantil, por isso a adesão às práticas de aleitamento materno e o seu monitoramento regular tornam-se essenciais. Este artigo objetiva realizar uma revisão integrativa da literatura sobre a frequência do aleitamento materno exclusivo (AME) aos 30 dias de vida, divulgada em estudos longitudinais. Para isso, foram identificados artigos nas bases de dados PubMed e LILACS. A combinação dos termos de pesquisa foi “estudo prospectivo” e “aleitamento materno”. A busca limitou-se aos artigos em inglês, espanhol e português, e compreendeu as publicações entre os anos 2015 e 2020. Foram selecionados 17 estudos originais. Apesar das diferenças metodológicas entre eles, em relação ao tipo e tamanho de amostra, a definição do AME e método de mensuração, os resultados indicam alta taxa de início da amamentação (≥86%) e ampla variação da ocorrência de AME aos 30 dias de vida (4,5%-86%), com declínio substancial (<60%) em 63% dos locais investigados. Esses resultados distam do cumprimento da recomendação da Organização Mundial da Saúde de AME até o sexto mês de vida, e indicam a necessidade de investigações, com metodologia padronizada, para comparação dentro dos e entre os países, visando ao planejamento de ações para incentivo à amamentação.

Ocupação materna e duração do aleitamento materno exclusivo: resultados de uma coorte de nascimento em São Luís, Maranhão, Brasil

Nas investigações dos determinantes da duração do aleitamento materno exclusivo (AME), a variável trabalho materno remunerado é quase sempre dicotomizada em não e sim. Este estudo analisa possíveis associações entre características da ocupação materna e menor duração do AME. Foi realizado um estudo de coorte em uma amostra sistemática de nascimentos do Município de São Luís (Maranhão, Brasil) em 2010. As exposições tipo de ocupação materna, números de dias trabalhados/semana e de horas trabalhadas/dia, trabalha em pé a maior parte do tempo e levanta objetos pesados nesse trabalho foram coletadas com 5.166 mães de nascidos vivos. A amostra final desse estudo teve 3.268 observações. Foi utilizada análise de sobrevida para testar associações entre as exposições e os desfechos AME até 4 meses (AME4) e AME até 6 meses (AME6). Não ter trabalho remunerado foi a categoria de referência. Regressões ajustadas de Cox mostraram que mães com ocupações manuais semiespecializadas (intervalo de 95% de confiança, IC95%: 1,02-1,58 para AME4 e IC95%: 1,11-1,56 para AME6) e mães que trabalhavam 8 ou mais horas diárias (IC95%: 1,01-1,36 para AME4 e IC95%: 1,11-1,41 para AME6) mais frequentemente interromperam AME. Mães com ocupações em funções de escritório (IC95%: 1,07-1,46), que trabalhavam 4-5 dias (IC95%: 1,01-1,36) ou 6-7 dias/semana (IC95%: 1,09-1,40) e por 5-7 horas (IC95%: 1,03-1,43) também praticaram menos AME6. Trabalhar (IC95%: 1,08-1,40) ou não (IC95%: 1,03-1,34) em pé a maior parte do tempo e levantar (IC95%: 1,07-1,56) ou não (IC95%: 1,06-1,33) objetos pesados no trabalho diminuíram a duração de AME6. Tipos de ocupação e de jornada de trabalho interferiram mais frequentemente na duração de AME6.

Prevalence and factors associated with no intention to exclusively breastfeed for the first 6 months of life

OBJECTIVE

To investigate the prevalence and factors associated with no intention to exclusively breastfeed for the first 6 months of life in a sample of women in the first 24 h postpartum during the hospital stay.

METHODS

Cross-sectional study with data from screening phase of a birth cohort. The proportion of mothers who did not intend to breastfeed exclusively for 6 months (primary outcome) derived from a negative response to the question "Would you be willing to try to breastfeed exclusively for the first 6 months?", in an interview conducted by previously trained interviewers. Crude and adjusted prevalence ratios (PR) with 95% confidence intervals were obtained by Poisson regression with robust variance.

RESULTS

A total of 2964 postpartum women were interviewed. The overall prevalence of mothers who did not intend to breastfeed exclusively for 6 months was 17.8% (16.4-19.1%). After adjusting for maternal age and type of pregnancy (singleton or multiple), no intention to exclusively breastfeed was higher in mothers with a monthly household income < 3 minimum wages (PR, 1.64; 1.35-1.98) and in those who intended to smoke 4-7 days/week after delivery (PR, 1.42; 1.11-1.83). The presence of significant newborn morbidity (PR, 0.32; 0.19-0.54) and intention to breastfeed up to 12 months (PR, 0.46; 0.38-0.55) had a protective effect against not intending to breastfeed exclusively for 6 months.

CONCLUSIONS

Approximately 1 in every 5 mothers did not intend to breastfeed exclusively for 6 months. Strategies aimed at promoting exclusive breastfeeding should focus attention on mothers from lower economic strata and smokers.

Factors associated with breastfeeding continuation for 12 months or more among working mothers in a general hospital

This article aims to identify factors associated with breastfeeding continuation for at least 12 months among working mothers in a hospital in the south of Brazil. We conducted a cross-sectional study, interviewing 251 women who breastfed after returning to work. Eligibility criteria included non-twin biological children aged between 12 and 36 months and the absence of an illness (mother and/or child) that could affect breastfeeding. The association between breastfeeding continuation and the exposure variables was tested using Poisson multivariate regression. Only one work-related variable showed a significant association with the outcome. Working only during the day increased the prevalence of BF continuation for at least 12 months by 37%. The following non-work-related factors showed a positive association with the outcome: mothers without a college degree; mothers with at least 12 months' prior breastfeeding experience; child not given milks other than breast milk when the mother returned to work, and not using a pacifier. The following variables showed a negative association with the outcome: older maternal age; older gestational age; mother receiving support from the child's caregiver; and mother receiving professional breastfeeding support. Non-work-related factors had a greater influence on breastfeeding continuation for at least 12 months among working mothers.

Predicting Risk for Early Breastfeeding Cessation in Israel

OBJECTIVES

This study aimed to 1) Examine factors associated with cessation of exclusive breastfeeding in Israel and 2) Develop predictive models to identify women at risk for early exclusive breastfeeding cessation.

METHODS

The study used data from longitudinal national representative infant nutrition survey in Israel (n = 2119 participants). Logistic regression was used to identify risk factors and build predictive models.

RESULTS

The rate of exclusive breastfeeding cessation increased from 45.4% at 2 months to 85.7% at 6 months. Five factors were significantly associated with higher odds of exclusive breastfeeding cessation at 2 months: being a primapara, low educational level, lack of previous breastfeeding experience, negative attitude towards birth, and lack of intention to breastfeed. Six factors were significantly associated with higher odds of exclusive breastfeeding cessation at 6 months: younger age, being in a relationship with a partner, lower religiosity level, cesarean delivery, not taking folic acid during pregnancy, and negative attitude towards birth. Both 2 and 6-months models had good predictive performance (C-statistic of .72 and .68, accordingly).

CONCLUSIONS FOR PRACTICE

This nationwide study successfully identified several predictors of exclusive breastfeeding cessation and created breastfeeding cessation prediction tools for two time periods (2 and 6 months). The resulting tools can be applied to identify women at risk for stopping exclusive breastfeeding in hospitals or at community clinics. Further studies should examine practical aspects of applying these tools in practice and explore whether applying those tools can lead to higher exclusive breastfeeding rates.

Determinants of exclusive breast-feeding discontinuation in southeastern Brazil, 2008-2013: a pooled data analysis

OBJECTIVE

To analyse the determinants of exclusive breast-feeding (EBF) discontinuation in southeastern Brazil between 2008 and 2013.

DESIGN

Secondary cross-sectional data were analysed from three waves of child feeding surveys conducted in the city of Marília, São Paulo, Brazil, in 2008, 2011 and 2013 (n 1645 children under 6 months). Multivariable Poisson regression models were used to test the association between EBF discontinuation and socio-economic, demographic and biomedical factors in a pooled sample and within each survey wave.

SETTING

Regionally representative cross-sectional survey from Brazil.

PARTICIPANTS

The analytical sample included 1645 infants under 6 months old.

RESULTS

In the pooled sample, 40·7 % of the infants were exclusively breastfed. Between 2008 and 2013, there was a significant increase in C-section (35·1-42·7 %) and pacifier use (41·4-48·8 %). The determinants of EBF discontinuation in the pooled analysis were mothers working outside the home (adjusted prevalence ratio (APR) = 1·10; 95 % CI 1·00, 1·21), first-time mothers (APR = 1·10; 95 % CI 1·01, 1·20), pacifier use (APR = 1·48; 95 % CI 1·36, 1·61) and low birth weight (APR = 1·17; 95 % CI 1·05, 1·32).

CONCLUSIONS

Mothers working outside the home, first-time moms, pacifier use and low birth weight were the factors associated with EBF discontinuation. Evidence-based counselling strategies during antenatal and early postpartum care in primary healthcare are needed to address the modifiable determinants of EBF discontinuation and ultimately to improve its rates in southeastern Brazil.

Exclusive Breastfeeding for 6 Months Postpartum and Factors Associated With Success in a Tertiary Care Baby-Friendly Hospital: A Retrospective Cohort Study

It is very important that infants are exclusively breastfed for the first 6 months of life and then that breastfeeding is continued until 2 years of age. In this study, we aimed to determine the rate of exclusive breastfeeding for the first 6 months of life following birth and the factors associated with continuation of exclusive breastfeeding. The study was a retrospective cohort study. The study population consists of infants born in Akdeniz University Hospital. Infants born between June 1, 2016, and June 1, 2017 (n = 1402) were included in the sample. For analysis of data, descriptive statistics, χ2 test, t test, and logistic regression test were employed. The rate of exclusive breastfeeding for the first 6 months was 29.8%. Further analysis revealed that chances of breastfeeding exclusivity for the first 6 months were increased by 1.6-fold if the father had higher education, by 1.4-fold if the infant was not given formula in the hospital, by approximately 4-fold if feeding bottle was not used, and by 1.7-fold in the absence of problems related to breastfeeding. The study results showed that success in exclusive breastfeeding was influenced by several factors. We recommended that modifiable factors associated with the success of exclusive breastfeeding be well managed.

Risk factors for the lack of adherence to breastfeeding

OBJECTIVE

To evaluate the prevalence of breastfeeding in a metropolitan region in Brasil and to identify factors influencing the lack of adherence to exclusive breastfeeding for 6 months and total breastfeeding for 2 years.

METHODS

In this cross-sectional study, demographic and socioeconomic characteristics of mothers and children in pediatric outpatient clinics were analyzed. Logistic regression was performed using the backward stepwise method to analyze factors associated with the lack of breastfeeding compliance.

RESULTS

In total, 385 mothers who visited the pediatric outpatient clinics were included. Among the mothers, 38.44% reported exclusive breastfeeding for >6 months and 22.6% reported total breastfeeding for 2 years or more. The predictive factors for the lack of adherence to exclusive breastfeeding for 6 months included single mothers (OR=1.976; 95%CI 1.245-3.135; p=0.004), use of a pacifier (OR=2.25; 95%CI 1.436-3.524; p<0.001), and low birth weight (OR=2.21; 95%CI 1.192-4.102; p=0.012). Predictive factors for the lack of adherence to total breastfeeding for 2 or more years included use of a pacifier (OR=4.82; 95%CI 2.722-8.54; p<0.001), planned pregnancy (OR=0.51; 95%CI 0.305-0.875; p=0.014), and breastfeeding in the first hour of life (OR=0.36; 95%CI 0.208-0.641; p<0.001).

CONCLUSIONS

The prevalence of exclusive breastfeeding for 6 months and total breastfeeding for 2 years or more was insufficient in the studied population. Several factors were associated with the lower duration of exclusive breastfeeding and total breastfeeding. The use of a pacifier and no breastfeeding in the first hour were preventable factors associated with both modalities.

Influence of social determinants of health on skin to skin contact between mother and newborn

OBJECTIVE

to analyze the association of skin-to-skin contact and social determinants of health.

METHODS

this is a cross-sectional study with 187 medical records of newborns from a reference rooming in in northeastern Brazil. An instrument with maternal and neonatal data was used. Analysis was descriptive and inferential statistics. For the associations, a chi-square test was used to measure strength, an Odds Ratio was calculated, with a 95% confidence interval.

RESULTS

62% of newborns who made skin-to-skin contact at birth were eutrophic, full-term, Apgar > 7, mothers with prenatal care and without abortion. The determinants associated with non-skin-to-skin contact were preterm (CR=3.2;95%CI: 2.72-18.98); 1st minute Apgar < 7 (CR:2.9;95%CI: 2.38-3.06), cesarean section (CR:8.4;95%CI: 4.29-16.57), and unhealthy NB (CR 12.7;95%CI: 4.9-32.67). We used STROBE guidelines.

CONCLUSION

skin-to-skin contact was influenced by gestational age, Apgar, delivery, and newborn health.

Sociodemographic and obstetric factors associated with the interruption of breastfeeding within 45 days postpartum - Maternar Cohort Study

Abstract Objectives: to evaluate and identify the prevalence of interruption of breastfeeding (BF) in the period of up to 45 days postpartum and the associated sociodemographic and obstetric factors. Methods: cohort of 622 puerperal women, selected between 2018 and 2019 in a reference maternity hospital in the South Brazil. Data collection was carried out in two phases, the first in the maternity hospital during hospitalization of the puerperal woman and the newborn and the second through a telephone call, which occurred 60 days after birth. Poisson regressions with robust variance were performed to identify the factors associated with interruption of BF in the first 45 days of life. The variables that presented p<0.20 in the crude analysis were included in the adjusted analysis. Results: the interruption of BF at 45 days was identified in 14% of the sample. Higher maternal age (PR= 0.46; CI95%= 0.22-0.93), eight years or less of education (PR= 2.11; CI95%= 1.05-4.25), support from the maternal grandmother (PR= 1.91; CI95%= 1.20-3.06) and receiving complement at the maternity hospital (PR= 1.53; CI95%= 1.04-2.25) were factors related to the interruption of BF in the 45-day postpartum period. Conclusion: maternal age ≥35 was a protective factor, and less education, the support of the maternal grandmother and receiving complement at the maternity hospital were predictors of early breastfeeding abandonment.

[Impact assessment of an educational intervention in pharmacies that use commercial promotion of products competing with maternal breastfeeding]

The Brazilian Code of Marketing of Infant and Toddlers Food, Nipples, Pacifiers, and Baby Bottles (Federal Law n. 11,265/2006) aims to control the abusive marketing of products that compete with breastfeeding. The objective was to assess the impact of an educational intervention on compliance with this law by pharmacies. A randomized intervention study was conducted in 155 pharmacies that were infringing the law in the Southern Zone of Rio de Janeiro, Brazil. The pharmacies' commercial practices were assessed before and after the intervention with the pharmacist and manager, compared to the control group. The interval between the intervention and the second assessment was one month. McNemar test was used to measure changes in the number of pharmacies infringing the law before and after the intervention. Wilcoxon test was used to compare variation in the number of violations in each group. A month after the intervention, there was a 16.1% reduction (n = 25) in the number of pharmacies committing violations. There was a decrease from 18.7% to 12.9% in products whose commercial promotion is banned by the law (p = 0.093) and from 92.9% to 80.5% in milk products (p = 0.001), but among processed complementary food there was an increase from 28.5% to 42.3% of pharmacies with illegal promotions (p = 0.006). The intervention group with the pharmacists showed a statistically significant reduction in violations related to discount prices (p = 0.022) and special displays (p = 0.002). The educational intervention reduced the number of pharmacies that infringed the law, mainly when the intervention involved the pharmacist.

Trends in Breastfeeding and Associated Factors in a Primary Healthcare Service in the South of Brazil: 2004 to 2015

The aim was to monitor the frequency of Breastfeeding (BF) and Exclusive Breastfeeding (EBF) in a Primary Healthcare Service, between the years of 2004 to 2015. This is a historical series is composed of eight cross-sectional surveys that were carried out during the annual vaccination campaigns. A total of 6027 children were evaluated, with a mean age of 6.2 months. There was a significant increase in the rates of BF (7.2%) and EBF (9.5%) in children less than four months old. In infants from four to five months old, a substantial decline was observed in the EBF rate between 2010 and 2015 (6.3%). The frequency of BF had a 10.1% increase in infants from six to nine months old and remained stable in children from 10 to 11 months of age. Among children less than six months old, monitoring by the health service had a positive impact on the frequency of BF (p < 0.001) and EBF (p < 0.001). The better BF and EBF rates seen in this study in infants followed up by the primary healthcare centers reinforce the evidence on the importance of expanding and qualifying primary healthcare as support for mother and child healthcare.

Predicting risk of early discontinuation of exclusive breastfeeding at a Brazilian referral hospital for high-risk neonates and infants: a decision-tree analysis

Background

Determinants at several levels may affect breastfeeding practices. Besides the known historical, socio-economic, cultural, and individual factors, other components also pose major challenges to breastfeeding. Predicting existing patterns and identifying modifiable components are important for achieving optimal results as early as possible, especially in the most vulnerable population. The goal of this study was building a tree-based analysis to determine the variables that can predict the pattern of breastfeeding at hospital discharge and at 3 and 6 months of age in a referral center for high-risk infants.

Methods

This prospective, longitudinal study included 1003 infants and was conducted at a high-risk public hospital in the following three phases: hospital admission, first visit after discharge, and monthly telephone interview until the sixth month of the infant’s life. Independent variables were sorted into four groups: factors related to the newborn infant, mother, health service, and breastfeeding. The outcome was breastfeeding as per the categories established by the World Health Organization (WHO). For this study, we performed an exploratory analysis at hospital discharge and at 3 and at 6 months of age in two stages, as follows: (i) determining the frequencies of baseline characteristics stratified by breastfeeding indicators in the three mentioned periods and (ii) decision-tree analysis.

Results

The prevalence of exclusive breastfeeding (EBF) was 65.2% at hospital discharge, 51% at 3 months, and 20.6% at 6 months. At hospital discharge and the sixth month, the length of hospital stay was the most important predictor of feeding practices, also relevant at the third month. Besides the mother’s and child’s characteristics (multiple births, maternal age, and parity), the social context, work, feeding practice during hospitalization, and hospital practices and policies on breastfeeding influenced the breastfeeding rates.

Conclusions

The combination algorithm of decision trees (a machine learning technique) provides a better understanding of the risk predictors of breastfeeding cessation in a setting with a large variability in expositions. Decision trees may provide a basis for recommendations aimed at this high-risk population, within the Brazilian context, in light of the hospital stay at a neonatal unit and period of continuous feeding practice.

Supplementary Information

The online version contains supplementary material available at 10.1186/s13006-020-00349-x.

Qualidade da relação da gestante com as pessoas próximas e o aleitamento materno

RESUMO Objetivos Identificar a pessoa próxima à gestante, que atua como sua fonte de apoio primária, bem como avaliar a qualidade dessa relação por meio do instrumento qualidade da relação com as pessoas próximas e sua influência no aleitamento materno. Método Estudo quantitativo, descritivo e exploratório realizado com uma amostra não probabilística consecutiva de 152 gestantes, em Unidades de Saúde de município de médio porte na região Oeste do Paraná, durante o ano de 2019, para responder à pergunta de pesquisa “a qualidade da relação da mulher na gestação com a sua fonte de apoio primária tem implicações na amamentação? Utilizou-se, para obtenção dos dados, a escala “Qualidade da relação com as pessoas próximas-ARI”, que classifica o vínculo por meio de pontos que podem variar de 40 a 128, sendo que quanto maior, também maior será a qualidade do vínculo com aquela pessoa. Os dados foram analisados por estatística descritiva. Resultados As mulheres identificaram o companheiro/esposo (58,6%) e outros membros da família (40,1%) como as pessoas mais importantes e atuantes como sua fonte de apoio primária. A média do escore foi de 103,5, apontando que o relacionamento é saudável e predominam aspectos positivos. Conclusão Quanto mais positivos os resultados, maior é o suporte recebido pela gestante e, consequentemente, maior a influência para que a mulher inicie e mantenha o aleitamento materno exclusivo. Implicações para a prática clínica A escala utilizada pode ser aplicada com regularidade na atenção primária para o enfermeiro identificar vínculos frágeis que influenciariam a amamentação.

Motivos associados à interrupção do aleitamento materno exclusivo até seis meses de idade em lactentes acompanhados em Estratégias de Saúde da Família da cidade de Registro, São Paulo

Objetivo: Identificar os motivos associados à interrupção do aleitamento materno exclusivo entre nutrizes durante os primeiros seis meses de vida do lactente. Métodos: Estudo exploratório, descritivo, transversal, com abordagem quantitativa, conduzido com 911 mães/responsáveis de crianças de zero a 23 meses. Foram coletadas informações sociodemográficas e relato dos motivos que levaram a interrupção do aleitamento materno exclusivo antes dos seis meses de idade do lactente. Resultados: As participantes do estudo eram predominantemente brancas, com companheiro, com ensino médio, sem vínculo empregatício, com dois a quatro filhos, com renda familiar ≤ 1 salário mínimo, com moradia própria, na faixa etária ≥ 20 anos. Em sua maioria, as mães/responsáveis relataram ter recebido orientações sobre a alimentação de seu filho com maior frequência realizada pelo enfermeiro e 28,5% afirmaram ter interrompido o aleitamento materno exclusivo antes dos seis meses de vida do lactente. Possuir moradia própria, usar de tabaco e álcool foram associados à interrupção do aleitamento materno exclusivo. Os motivos que predominaram na interrupção do aleitamento materno exclusivo estiveram ligados principalmente ao relato de leite materno insuficiente, retorno ao trabalho/escola e recusa inexplicada. Conclusão: Os motivos para abandono do aleitamento materno exclusivo identificado neste estudo foram desde o relato de choro da criança à alegação de leite materno insuficiente. A identificação dos motivos que levam ao desmame precoce pode auxiliar no planejamento de estratégias para evitar a interrupção do aleitamento materno.

Association between maternal satisfaction with breastfeeding and postpartum depression symptoms

Background

Due to the multiple health benefits of breastfeeding, it is essential to identify factors that may negatively interfere with this healthy practice. Among such factors are postpartum depression (PPD) and maternal satisfaction with breastfeeding. The objective of this study was to evaluate the association between maternal satisfaction with breastfeeding and symptoms of PPD in the first month after childbirth.

Methods

This cross-sectional study nested in a cohort study was conducted in Porto Alegre, Brazil, with 287 puerperal women selected at two maternity hospitals, one public and one private. Women were interviewed at their homes the week after the infant completed 30 days of life. A structured questionnaire was applied, as well as instruments to evaluate maternal satisfaction with breastfeeding (Maternal Breastfeeding Evaluation Scale) and to screen for PPD (Edinburgh Postnatal Depression Scale). The association between higher satisfaction with breastfeeding (outcome) and negative PPD screening test was assessed using Poisson regression with robust variance, adjusting for specific covariables. Adjusted prevalence ratios (aPR) and respective 95% confidence intervals (95%CI) were estimated.

Results

The prevalence of increased satisfaction with breastfeeding (defined as women with scores above the median) was 47% higher among women who screened negative for PPD when compared to those with a positive result (aPR 1.47; 95%CI 1.01–2.16). This result was adjusted for maternal age and skin color, cohabitation with the infant’s father, planned pregnancy, type of delivery, exclusive breastfeeding, and occurrence of breastfeeding problems.

Conclusions

The findings of this study showed an association between higher maternal satisfaction with breastfeeding and absence of PPD symptoms, reinforcing the importance of caring for the mental health of pregnant and puerperal women and paying attention to their satisfaction with breastfeeding.

Barriers and facilitators to breastfeeding during the immediate and one month postpartum periods, among Mexican women: a mixed methods approach

BACKGROUND

Evidence suggests that inadequate hospital practices, as well as sociocultural and community factors have detrimental effects on timely initiation as the first breastfeed within first hour after birth, and exclusive breastfeeding. The purpose of the study was to examine the factors that influence timely initiation of breastfeeding and exclusive breastfeeding at birth and 1 month postpartum in Mexican women delivering in public and private hospitals.

METHODS

Mixed methods were conducted between May and July 2017, including surveys (n = 543) and semi-structured interviews (n = 60) in the immediate (7 h) and intermediate (30 days) postpartum periods. Participants were women aged 15-49 years, in public and private hospitals, of urban and rural municipalities of Chihuahua and Puebla, Mexico.

RESULTS

Timely initiation was reported by 49.4% of mothers, and 34.7% reported that their children received infant formula at the hospital. Only 44.8% of women reported exclusive breastfeeding at 1 month postpartum. Timely initiation of breastfeeding was higher in women with vaginal delivery (62.1 vs 35.5%; p < 0.05) and those who received information during pregnancy (OR 1.07; p = 0.018). Exclusive breastfeeding at 1 month postpartum was related to older maternal age (OR 1.05; p < 0.001) and the fact that the mothers had received more information about breastfeeding during pregnancy (OR 1.13; p = 0.0001). Infant formula use was less associated with timely initiation (OR 0.46; p = 0.001). Participants in qualitative data identified the emotional, physical and economic benefits of breastfeeding, however, the perception about insufficient production of human milk, and the belief that infant formula is recommended, persists.

CONCLUSIONS

Modification of hospital practices, such as decreasing the number of cesarean and the use of infant formula, as well as the support of the initiation and continuation of exclusive breastfeeding by health personnel and family members, could help increase breastfeeding practices in Mexican women.

What is the impact of rural-to-urban migration on exclusive breastfeeding: a population-based cross-sectional study

Background

In China, less than one third of infants under 6 months of age are being exclusively breastfed. Maternal rural-to-urban migration contributes to these low rates of breastfeeding practices. Therefore, the aim of this study was to assess the prevalence of breastfeeding practices and associated factors among rural-to-urban migrant children and local children with infants aged 0–12 months in China, 2018.

Methods

Data were collected from a population-based cross-sectional survey in 2018 that included 6995 infants from eight urban areas (four metropolis and four medium sized/small cities) in China. The prevalence of breastfeeding practices was calculated using a 24-h recall questionnaire for all infants aged under 12 months. Logistic regression was conducted to examine the association between the prevalence of breastfeeding practices and maternal migrant status, after adjusting for sociodemographic characteristics, mother-infant health information and supportive information. For exclusive breastfeeding, we further analyzed its association with maternal rural-to-urban migration, stratified by maternal education level, maternal resident place and maternal ethnicity, respectively.

Results

The overall prevalence of ever breastfeeding, exclusive breastfeeding, predominant breastfeeding and age-appropriate breastfeeding (exclusive breastfeeding of infants under 6 months of age and complementary feeding from six to 12 months of age) was 97.51, 29.84, 59.89 and 45.07%, respectively. Rural-to-urban migrant children were less likely to be exclusively breastfed compared to local children (AOR 0.81, 95% CI 0.68, 0.95). Stratified by different sociodemographic variables, a negative association between exclusive breastfeeding and rural-to-urban migration was only found in the group with high education level, in the group living in metropolis and in the group of minorities, respectively.

Conclusions

The overall prevalence of breastfeeding practices was low in both rural-to-urban migrant children and local children. Besides common strategies, special approaches should be provided for urban highly educated migrants.

Use of Artificial Nipples Among Brazilian Infants and Associated Factors

Transversal study conducted in a Human Milk Bank to evaluate the factors associated with the use of artificial nipples (pacifier and/or nursing bottle) among Brazilian infants. Analyses were performed using the χ2 test and logistic regression analysis. A total of 6017 nursing mothers were evaluated and the use of artificial nipples was reported by 31.3%. The chance of using artificial nipples was higher among infants whose mothers attended antenatal care in private hospitals [odds ratio (OR): 1.61, 95% confidence interval (CI) 1.21-2.14], born in maternities without the Baby-Friendly Hospital Initiative (BFHI) (OR: 18.38, 95% CI 13.50-25.04) and those with adequate birth weight (OR: 2.83, 95% CI 1.99-4.03). A lower chance of using artificial nipples was observed among infants whose mothers had previous breastfeeding experience (OR: 0.76, 95% CI 0.61-0.95), received guidance on breastfeeding during antenatal care (OR: 0.80, 95% CI 0.65-0.98), practiced exclusive breastfeeding (OR: 0.36, 95% CI 0.28-0.45), breastfeeding on demand (OR: 0.66, 95% CI 0.52-0.85) and residents of inland cities/towns (OR: 0.38, 95% CI 0.20-0.72). The findings highlight the importance of breastfeeding guidance during antenatal care and the role of BFHI in clarifying risks associated with artificial nipple use.

Recurrent Violence, Violence with Complications, and Intimate Partner Violence Against Pregnant Women and Breastfeeding Duration

Background: Few studies have investigated the association between violence against pregnant women in terms of recurrence, complications, and perpetrators of violence, and breastfeeding duration. This study verifies whether recurrent violence, violence with pregnancy complications, and intimate partner violence (IPV) against pregnant women are associated with shorter exclusive breastfeeding up to the infant's 6th month and breastfeeding up to the 12th month of life. Materials and Methods: A cohort study with a convenience sample of 1,146 pregnant women was performed. Follow-up assessments were conducted at birth, and at 12-36 months. Survival analysis was used to verify whether recurrent violence, violence with pregnancy complications, and IPV were associated with reduced duration of exclusive breastfeeding and breastfeeding. Results: The adjusted Cox regression revealed no difference regarding exclusive breastfeeding duration among mothers exposed or not exposed to violence and according to who perpetrated the violence. The risk of an infant not being breastfed within the first 12 months of life increased in cases of violence before/during pregnancy (95% confidence interval [CI] = 1.03-1.88), recurrent psychological/physical/sexual violence during pregnancy (95% CI = 1.11-1.92), recurrent psychological violence (95% CI = 1.05-1.96), and recurrent physical/sexual violence (95% CI = 1.01-2.39). Violence with pregnancy complications (95% CI = 0.94-2.22) was not associated with breastfeeding interruption. Similar risks of breastfeeding interruption were observed for IPV (95% CI = 0.96-1.87) and violence perpetrated by other family members (95% CI = 0.83-1.89). Conclusions: We observed a shorter breastfeeding duration up to 12 months of life in cases of recurrent violence.

BRAZIL'S PROGRESS IN PROTECTING, PROMOTING AND SUPPORTING BREASTFEEDING FROM THE PERSPECTIVE OF THE GLOBAL BREASTFEEDING COLLECTIVE

OBJECTIVE

To identify and to discuss the progress of actions for the protection, promotion and support of breastfeeding in Brazil from the perspective of the indicators proposed by the Global Breastfeeding Collective.

DATA SOURCE

A narrative review was conducted according to the methodological orientation of the implementation research and through a qualitative approach. Publications from the World Health Organization and the United Nations Children's Fund were selected, as well as publications from the Brazilian Ministry of Health were collected from the Virtual Health Library and from the libraries of the Department of Primary Care's portal and the Brazilian's Institute of Geography and Research.

DATA SYNTHESIS

Brazil has shown promising results regarding the implementation of breastfeeding protection legislation, the participation of municipalities in community breastfeeding support programs, and the continued evaluation of these programs. However, reports of breastfeeding rates have not been produced every five years and the progress of these indicators is very far from the agreed targets for 2030. There is also a need to improve the number of births in child-friendly hospitals and financial donations for breastfeeding programs.

CONCLUSIONS

It is necessary to strengthen systematic monitoring of breastfeeding and following up current strategies to more effectively impact the breastfeeding rates in the country. Furthermore, it is suggested that the practice of donations is a pathway to be explored to support breastfeeding programs.

Factors associated with abandoning exclusive breastfeeding in Mexican mothers at two private hospitals

BACKGROUND

Exclusive breastfeeding (EBF) has multiple benefits for both the child and the mother; however, there is little data regarding the reason why Mexican mothers with a high socio-economic level abandon EBF before 6 months, and there is limited information about the practice of breastfeeding in private hospitals. The objective was to identify the factors associated with the cessation of exclusive breastfeeding in Mexican mothers at two private hospitals.

METHODS

A cross-sectional study was conducted with 218 upper-class mothers selected according to their place of residence by geographic location, socio-economic level, and pediatric consultations cost. They were over 18 years old and with children aged 6 to 24 months. Data were collected between July and November 2016 by face to face interview using a structured questionnaire while the mothers waited for the pediatric postnatal care consultation in two private hospitals in northeastern Mexico. Exclusive breastfeeding was measured according to World Health Organization (WHO) recommendations, which consist of providing only breast milk for the first 6 months of life. Chi-squared tests and multivariate logistic regression were performed.

RESULTS

Mean maternal age was 31.4 years (SD of 4.4) and most of the participants had an undergraduate education, were married, and worked outside the home. The prevalence of exclusive breastfeeding at 6 months was 28%. Upper-class working mothers are less likely to continue breastfeeding. There was a negative association with employment (AOR 13.69; 95% CI 1.59, 111.11), bottle use in the first 6 months (AOR 7.93; 95% CI 3.07, 20.48), and a low level of knowledge (AOR 2.18; 95% CI 1.04, 4.56). After 6 months, only 61 mothers (28%) maintained exclusive breastfeeding.

CONCLUSIONS

Knowledge level, bottle use, and employment are associated with premature cessation of EBF in Mexican upper-class mothers, attending two private hospitals. There was a high percentage of breastfeeding cessation in the sample. It is necessary to reinforce a strategy that coordinates the action of the different laws, regulations and programs affecting the exclusive breastfeeding practice, in order to adequately promote breastfeeding and support mothers in both public and private sectors.

Maternal satisfaction with breastfeeding in the first month postpartum and associated factors

BACKGROUND

Breastfeeding success has been measured based on its duration, disregarding satisfaction with the maternal experience. Studies to investigate maternal satisfaction with breastfeeding are rare, especially in Brazil, and little is known about their determinants. The aim of this study was to measure the level of satisfaction with breastfeeding in a group of women in the first month of their child's life, and to identify factors associated with higher maternal satisfaction.

METHODS

A cross-sectional study nested within a cohort was conducted with 287 women recruited at two (one public, one private) maternity services in the city of Porto Alegre, southern Brazil, from January to July 2016. Women residing in the municipality who had given birth to a healthy singleton born at term, were rooming in, and had initiated breastfeeding were randomly included. During the week after the child was 30 days old, women were interviewed at their homes to measure the level of maternal satisfaction with breastfeeding, using the Maternal Breastfeeding Evaluation Scale (MBFES), validated for use in the Brazilian population. Associations between maternal satisfaction and explanatory variables were estimated using multivariate Poisson regression with robust variance in a four-level hierarchical approach. Satisfaction level was categorized using as cutoff point the median score obtained with the MBFES. Women with scores equal to or above the median were considered to have higher levels of satisfaction, whereas those scoring below the median were considered to be less satisfied.

RESULTS

Maternal satisfaction with breastfeeding in the first month postpartum was high, with a median score of 124 on MBFES, close to the maximum score (145 points). The prevalence of more elevated levels of satisfaction with breastfeeding was higher among women with brown (pardo) and black skin color (prevalence ratio [PR] 1.33, 95%CI 1.05;1.69), those who lived with the partner (PR 1.75, 95%CI 1.05;2.94), who planned to breastfeed for 12 months or more (PR 1.48, 95%CI 1.02;2.17), and who did not report low milk supply (PR 1.47, 95%CI 1.03;2.10) or cracked nipples (PR 1.29, 95%CI 1.01;1.65).

CONCLUSIONS

The factors associated with maternal satisfaction with breastfeeding in the first month postpartum include individual factors and maternal expectations, family constitution, as well as breastfeeding-related problems.

Breastfeeding patterns in cohort infants at a high-risk fetal, neonatal and child referral center in Brazil: a correspondence analysis

Background

To investigate the prevalence and patterns of breastfeeding at discharge and in the first six months of life in a high-risk fetal, neonatal and child referral center.

Methods

Prospective, longitudinal study that included the following three steps: hospital admission, first visit after hospital discharge and monthly telephone interview until the sixth month of life. The total number of losses was 75 mothers (7.5%). Exposure variables were sorted into four groups: factors related to the newborn, the mother, the health service and breastfeeding. The dependent variable is breastfeeding as per categories established by the WHO. All 1200 children born or transferred to the high-risk fetal, neonatal and child referral center, within a seven-day postpartum period, from March 2017 to April 2018, were considered eligible for the study, and only 1003 were included. The follow-up period ended in October 2018. For this paper, we performed an exploratory analysis at hospital discharge in three stages, as follows: (i) frequencies of baseline characteristics, stratified by risk for newborn; (ii) a multiple correspondence analysis (MCA); and (iii) clusters for variables related to hospital practice and exclusive breastfeeding (EBF).

Results

The prevalence of EBF at hospital discharge was 65.2% (62.1–68.2) and 20.6% (16.5–25.0) in the six months of life. Out of all at-risk newborns, 45.7% were in EBF at discharge. The total inertia corresponding to the two dimensions in the MCA explained for 75.4% of the total data variability, with the identification of four groups, confirmed by the cluster analysis.

Discussion

Our results suggest that robust breastfeeding hospital policies and practices influence the establishment and maintenance of breastfeeding in both healthy and at-risk infants. It is advisable to plan and implement additional strategies to ensure that vulnerable and healthy newborns receive optimal feeding. It is necessary to devote extra effort particularly to at-risk infants who are more vulnerable to negative outcomes.

Conclusion

At-risk newborns did not exclusively breastfeed to the same extent as healthy newborns at hospital discharge. A different approach is required for at-risk neonates, who are more physically challenged and more vulnerable to problems associated with initiation and maintenance of breastfeeding.

Effect of an educational intervention on the breastfeeding technique on the prevalence of exclusive breastfeeding

Abstract Objectives: to evaluate the effect of an intervention directed to the breastfeeding technique in the prevalence of exclusive breastfeeding in the first month of life. Methods: this is a quasi-randomized intervention study conducted in a public maternity ward accredited in the Baby-Friendly Hospital Initiative. The intervention consisted of individual orientations on the breastfeeding technique in the first 48 hours after delivery, with the help of a breast model, doll, and movie. The control group was oriented by researchers about the importance of breastfeeding, and received hospital orientations. Data were collected in the maternity ward, and at the end of the first month in the hospital’s outpatient service by implementing a questionnaire, observing the baby’s breastfeeding technique and examining breasts. Results: the prevalence of exclusive breastfeeding in the first month of life of the infant was 76.6% in the experimental group, and 52.2% in the control group. RR=1.46 (CI95%=1.16-1.84); NNT=4.09; p=0.001. The trained women presented a correct breast-feeding technique in 64.04%, much higher when compared to those who did not receive training (15.11%;RR=4.87[CI95%=2.93-8.34]; NNT=1.96;p<0.001). Conclusions: the use of audiovisual resources, use of instruments (model breast and doll), and type of individualized approach contributed to an increased prevalence of exclusive breastfeeding up to 30 days after delivery.

Household food insecurity and early childhood development: Systematic review and meta-analysis

Household food insecurity (HFI) is a powerful stressor negatively associated with early childhood development (ECD). However, no comprehensive review has examined the association of HFI and ECD. Therefore, this systematic review and meta-analysis investigated the association between HFI and ECD domains and subdomains in children under 5 years old. Peer-reviewed and grey literature were systematically searched in electronic databases with no year or language restrictions. Studies were eligible if they assessed the association between HFI and one or more ECD domains. Data were extracted using a standard predefined protocol. Meta-analysis was performed, and the heterogeneity across studies was explored. Nineteen studies were included in the systematic review and 14 in the meta-analysis. Of the studies, 15 were from high income countries (HICs) and four from low-middle income countries (LMICs). For developmental risk and the cognitive/math and cognitive/school readiness and reading subdomains, the only studies available were conducted in HICs. The meta-analysis showed that HFI was associated with developmental risk (OR 1.28; 95% CI [1.14, 1.45]), cognitive/vocabulary (OR 0.94; 95% CI [0.90, 0.98]), and cognitive/math (OR 0.84; 95% CI [0.73, 0.96]). HFI was marginally associated with cognitive/school readiness and reading (OR 0.91; 95% CI [0.82, 1.00]) and motor development (OR; 0.91, 95% CI [0.80, 1.04]). HFI was associated with poor ECD in children under 5 years old. Specifically, HFI was associated with developmental risk and poor math skills in studies conducted in HICs and with poor vocabulary skills in studies conducted in both HICs and LMICs. Prospective studies examining HFI and ECD are needed in LMICs.

Relationship between caesarean section and breastfeeding: evidence from the 2013 Turkey demographic and health survey

Background

The mode of delivery influences breastfeeding practices. High rates of caesarean section and low breastfeeding rates are important public health concerns for all developing countries. This study aimed to determine the relationship between caesarean section and early breastfeeding practices among primiparae.

Methods

Data for primiparae with a singleton birth (N = 777) obtained from the 2013 Turkey Demographic and Health Survey were used in this retrospective cohort study. Early initiation of breastfeeding within one hour of delivery and exclusive breastfeeding during the first three days following birth were evaluated. Standardised incidence rates and standardised rate ratios of non-early initiation of breastfeeding and non-exclusive breastfeeding were calculated according to the mode of delivery.

Results

The late initiation of breastfeeding and non-exclusive breastfeeding incidence rates were 42.7 and 41.0%, respectively. The standardised incidence rate of late initiation of breastfeeding among women with vaginal delivery was 35.34%, versus 50.49% among those with caesarean delivery. The standardised rate ratios for late initiation of breastfeeding and non-exclusive breastfeeding were 1.428 (95% confidence interval (CI): 1.212–1.683) and 1.468 (95% CI: 1.236–1.762), respectively. Women who underwent caesarean section had a higher risk of late initiation of breastfeeding and non-exclusive breastfeeding during the three days following delivery, after controlling for sociodemographic and delivery-related factors.

Conclusions

This study provides useful evidence for the implementation of strategies to prevent unnecessary caesarean sections, which negatively affect not only maternal health but also neonatal health. The promotion of mother-friendly policies by healthcare institutions, implemented in a baby-friendly manner, is essential.

Time trends in the prevalence of breastfeeding among schoolchildren from public and private schools in Florianópolis, Southern Brazil: From 2002 to 2013

OBJECTIVE

To describe breastfeeding trends from 2002 to 2012/2013, and to investigate whether breastfeeding practices differ between mothers of children in public and private schools.

METHODS

Data were obtained from three school-based cross-sectional studies conducted with 7 to 10 years old children. The total sample was 7264 individuals. Data related to breastfeeding were analyzed descriptively and compared using the chi-square test for heterogeneity or trend.

RESULTS

In the 10-year period was observed a decrease in the total percentage of schoolchildren who were not breastfed (12.9%-10.5%) and an increase in the percentage of schoolchildren breastfed for >12 months (23.9%-36.7%). In public schools, the increase of breastfeeding for >12 months was independent of maternal age and years of schooling. In private schools, the increase was observed for schoolchildren born to older mothers and to more educated mothers, although the highest percentage was observed for schoolchildren born to less educated mothers.

CONCLUSIONS

The results confirm the complexity of determining breastfeeding behaviors, and understanding these dynamics is fundamental to develop and improve programs and actions aimed at encouraging, supporting, and protecting breastfeeding. However, strategies developed in Brazil during the first decade of the 21st century should explain the increase of proportion of breastfed children for more than 12 months, and the concomitant decrease of never breastfeed children in the city of Florianopolis (Southern Brazil).

Mothers' Expectations and Factors Influencing Exclusive Breastfeeding during the First 6 Months

The aims were to determine Spanish women’s expectations about exclusive breastfeeding (EB) and the effect of expectations and other factors on EB during the first 6 months. A prospective cohort study was conducted with 236 participants. Variables were maternal age, marital status, occupation, expectations about breastfeeding, knowledge about breastfeeding, type of delivery, type of feeding, and duration of EB. Data were collected through three personal interviews, at the hospital (before delivery) and in two telephone calls in the first and sixth months postpartum. Average age was 32.3 years (SD = 5.3); average duration of EB was 2.73 months (SD = 2.49). Of 236 women who had decided to breastfeed before birth, 201 (85.2%) offered EB after delivery. Achievement of expectations was most influenced by the decision to continue breastfeeding ‘as long as I can’ (OR: 5.4; CI: 2.0–14.6) and previous experience (OR: 3.2; CI: 1.2–8.5). Knowledge of breastfeeding acquired from relatives (OR: 9.2; CI: 3.0–27.9), caesarean delivery (OR: 4.6; CI: 1.7–12.8) and maternal age (36–40 years old) (OR: 7.5; CI: 1.8–30.9) were associated with failure to achieve EB. Achievement of EB may depend on a woman’s confidence in her ability to do so and on knowledge obtained in the social environment.

Determinants of early breastfeeding initiation and exclusive breastfeeding in Colombia

OBJECTIVE

To identify modifiable risk factors associated with early initiation of breastfeeding (EIBF) and exclusive breastfeeding (EBF) in Colombia.

DESIGN

Cross-sectional study from the 2010 Colombia nationally representative Demographic Health Survey (DHS). Studied exposures were categorized into five hierarchical blocks of increasing proximity to the outcomes: household, maternal, health systems, child, and early feeding characteristics. The two outcomes examined were delayed breastfeeding initiation among infants <24 months and interruption of EBF among infants <6 months. Prevalence ratios were computed using Poisson regression analysis with robust error variance, adjusted for sampling weights, following a hierarchical modelling approach.

SETTING

Nationally representative cross-sectional survey from Colombia.

PARTICIPANTS

The EIBF analytical sample included 6592 and the EBF sample 1512 women with young children.

RESULTS

EIBF prevalence was 65·6 % in children under 24 months and EBF was 43 % in infants under 6 months. Modifiable risk factors associated with delayed breastfeeding initiation were: C-section (PR = 2·08, CI 95 % = 1·92, 2·25), maternal overweight/obesity (PR = 1·09, CI 95 % = 1·01, 1·17), lack of skilled attendant at birth (PR = 1·09, CI 95 % = 1·01, 1·18). Modifiable risk factors for EBF interruption were C-section (PR = 1·12, CI 95 % = 1·02, 1·23) and prelacteal feeding (PR = 1·51, CI 95 % = 1·37, 1·68). Non-pregnancy intention was a protective factor for EBF interruption (PR = 0·82, CI 95 % = 0·72, 0·93).

CONCLUSIONS

C-section, lack of skilled attendant at birth, prelacteal feeding, maternal nutritional status, and pregnancy intention were modifiable factors associated with suboptimal breastfeeding practices in Colombia.

Breastfeeding exclusivity and duration: trends and inequalities in four population-based birth cohorts in Pelotas, Brazil, 1982-2015

Background

Brazil has made substantial improvements in the duration of breastfeeding. We use data from four population-based cohorts to examine how trends and inequalities in breastfeeding indicators changed over time in a Brazilian city.

Methods

Data from four birth cohorts, each including all births in a calendar year (1982, 1993, 2004 and 2015) in the city of Pelotas were used. Information on breastfeeding was collected when children were aged between 3 and 20 months. The prevalences of continued breastfeeding at 1 year of age and of exclusive breastfeeding at 3 months were calculated according to family income, maternal skin colour and sex.

Results

Prevalence of breastfeeding at 12 months increased from 16% to 41% in the 33-year period. The prevalence of exclusive breastfeeding at 3 months increased from 7% in 1993 to 45% in 2015. Increases in exclusive breastfeeding at 3 months were seen in all socioeconomic groups, but the 2015 rates remain highest (57.2%) among the women in the richest quintile, and lowest among those in the poorest quintile (34.6%). Black mothers were more likely to breastfeed at 12 months than Whites in the four cohorts. In the earlier cohorts, breastfeeding at 12 months was more common among the poor, but by 2015 these differences had disappeared.

Conclusions

There were important positive changes in breastfeeding practices during this period, but less than half of the children in 2015 were receiving the full benefits of breast milk. Improved breastfeeding practices are being adopted by high-income women to a greater extent than by poor women.