Racial/ethnic differences in breastfeeding duration among WIC-eligible families

Clinically Integrated Breastfeeding Peer Counseling to Promote Breastfeeding Equity

OBJECTIVE

 This study aimed to determine whether clinically integrated Breastfeeding Peer Counseling (ci-BPC) added to usual lactation care reduces disparities in breastfeeding intensity and duration for Black and Hispanic/Latine participants.

STUDY DESIGN

 This study is a pragmatic, randomized control trial (RCT) of ci-BPC care at two ci-BPC-naïve obstetrical hospital facilities in the greater Chicago area. Participants will include 720 patients delivering at Hospital Site 1 and Hospital Site 2 who will be recruited from eight prenatal care sites during midpregnancy. Participants must be English or Spanish speaking, planning to parent their child, and have no exposure to ci-BPC care prior to enrollment. Randomization will be stratified by race and ethnicity to create three analytic groups: Black, Hispanic/Latine, and other races.

RESULTS

 The primary outcome will be breastfeeding duration. Additional outcomes will include the proportion of breastmilk feeds during the delivery admission, at 6-week postdelivery, and at 6-month postdelivery. A process evaluation will be conducted to understand implementation outcomes, facilitators, and barriers to inform replication and scaling of the innovative ci-BPC model.

CONCLUSION

This research will produce findings of relevance to perinatal patients and their families, the vast majority of whom desire to provide breastmilk to their infants and require support to succeed with their feeding goals. As the largest RCT of ci-BPC in the United States to date, this research will improve the quality of evidence available regarding the effectiveness of ci-BPC at reducing disparities. These findings will help patients and stakeholders determine the benefits of accepting and adopting the program and inform policies focused on improving perinatal care and reducing maternal/child health disparities. This study is registered with Clinical Trial (identifier: NCT05441709).

KEY POINTS

· Ci-BPC can promote racial breastfeeding equity.. · Ci-BPC has not been tested as a generalized lactation strategy in prior trials and is underused.. · This RCT will identify if ci-BPC can reduce breastfeeding disparities for Black and Hispanic patients..

The role of breastfeeding support in racial/ethnic disparities in breastfeeding practices

BACKGROUND

Persistent racial/ethnic disparities in breastfeeding practices in the United States are well documented but the underlying causes remain unclear. While racial/ethnic disparities are often intertwined with socioeconomic disparities in breastfeeding, studies suggest that lack of breastfeeding support from family, health care organizations and workplaces may contribute to racial/ethnic disparities in breastfeeding rates. No studies have investigated the extent to which racial/ethnic disparities in breastfeeding practices can be explained by breastfeeding support.

METHODS

We used survey data from participants of a federal nutrition assistance program in Los Angeles County, the most populous county in the United States, to examine causal mechanisms underlying racial/ethnic disparities in breastfeeding in five groups: Spanish-speaking Latina, English-speaking Latina, Non-Hispanic White (NHW), Non-Hispanic Black (NHB) and Non-Hispanic Asian (NHA). Applying causal mediation analysis, this study estimated the proportion of racial/ethnic differences in breastfeeding ('any' breastfeeding, i.e., partial or exclusive) rates at 6 months that could be explained by differential access to breastfeeding support from family, birth hospitals and workplaces.

RESULTS

NHB and English-speaking Latina mothers were less likely, and Spanish-speaking Latina mothers more likely to breastfeed through 6 months than NHW mothers. Lack of breastfeeding support from family, hospitals and workplaces accounted for approximately 68% of the difference in any breastfeeding rates at 6 months between NHW and NHB mothers and 36% of the difference between NHW and English-speaking Latina mothers.

CONCLUSION

These findings highlight the importance of improving support from family, hospitals and workplaces for breastfeeding mothers to reduce racial/ethnic disparities in breastfeeding.

Examining the Role of Women, Infant, and Children in Black Women Breastfeeding Duration and Exclusivity: A Systematic Review

Background: African American women continue to experience low rates of breastfeeding initiation as well as low rates of exclusive breastfeeding for 6 months. Research has indicated that there are several social determinants that impact breastfeeding rates, but there is a dearth of literature that allows African American women to give voice to their experiences. In addition, research has shown women, infant, and children (WIC) participants to have lower breastfeeding rates than non-WIC eligible women. Research Aim/Question: The aim of this systematic review was to examine the relationship between WIC program participation and breastfeeding initiation and duration among non-Hispanic African American/Black women. Methods: The approach for this review used the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Four online databases, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Cochrane Library, MEDLINE, and SCOPUS, were used to search for peer-reviewed articles and grey literature. Results: Two hundred eighteen articles were retrieved through the database search and underwent initial screening, yielding 59 potential eligible articles. Full-text articles were further reviewed and 11 met the inclusion criteria and were included in this systematic review. Conclusions: Included studies show mixed results regarding the association between WIC participation and breastfeeding initiation, but there is a general negative association between WIC participation and breastfeeding duration, especially among Black women.

Breastfeeding Initiation Trends by Special Supplemental Nutrition Program for Women, Infants, and Children Participation and Race/Ethnicity Among Medicaid Births

OBJECTIVE

Describe long-term breastfeeding initiation trends by prenatal Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) participation and race/ethnicity.

DESIGN

Cross-sectional study of birth certificate data from 2009 to 2017 in 24 states that adopted the 2003 birth certificate revision by 2009.

PARTICIPANTS

Term births with hospital costs covered by Medicaid (N = 6,402,704).

MAIN OUTCOME MEASURES

Breastfeeding initiation.

ANALYSIS

The descriptive characteristics of WIC participants and WIC-eligible nonparticipants were compared by year and race/ethnicity using the chi-square test of independence or t tests. Adjusted breastfeeding initiation prevalence was estimated using linear regression models with county fixed effects, controlling for sociodemographic and obstetric/health factors. Trends were compared by WIC status overall and within racial/ethnic groups. Differences and P values were assessed using interaction terms between WIC and year.

RESULTS

Breastfeeding initiation increased for WIC participants and nonparticipants. Special Supplemental Nutrition Program for Women, Infants, and Children participants had lower adjusted breastfeeding initiation (2009: 69.0%; 2017: 78.5%) than nonparticipants (2009: 70.8%; 2017: 80.1%) (P < 0.001 per year). Breastfeeding initiation increased more rapidly in WIC participants than in nonparticipants for non-Hispanic Asian/Pacific Islander (21.4% and 8.6%, respectively; P < 0.001) and American Indian/Alaskan Native (13.6% and 8.1%, respectively; P = 0.02)-narrowing the gap between WIC participants and nonparticipants over time.

CONCLUSIONS AND IMPLICATIONS

Annual birth certificate data provide detailed information for monitoring trends and disparities in breastfeeding initiation by prenatal WIC status. These findings can inform WIC and maternal child health program efforts to improve breastfeeding promotion for populations with low-income and racial/ethnic groups.

Dietary and Complementary Feeding Practices of US Infants, 6 to 12 Months: A Narrative Review of the Federal Nutrition Monitoring Data

Complementary foods and beverages (CFBs) are key components of an infant's diet in the second 6 months of life. This article summarizes nutrition and feeding practices examined by the 2020 Dietary Guidelines Advisory Committees during the CFB life stage. Breastfeeding initiation is high (84%), but exclusive breastfeeding at 6 months (26%) is below the Healthy People 2030 goal (42%). Most infants (51%) are introduced to CFBs sometime before 6 months. The primary mode of feeding (ie, human milk fed [HMF]; infant formula or mixed formula and human milk fed [FMF]) at the initiation of CFBs is associated with the timing of introduction and types of CFBs reported. FMF infants (42%) are more likely to be introduced to CFBs before 4 months compared with HMF infants (19%). Different dietary patterns, such as higher prevalence of consumption and mean amounts, were observed, including fruit, grains, dairy, proteins, and solid fats. Compared with HMF infants of the same age, FMF infants consume more total energy (845 vs 631 kcal) and protein (22 vs 12 g) from all sources, and more energy (345 vs 204 kcal) and protein (11 vs 6 g) from CFBs alone. HMF infants have a higher prevalence of risk of inadequate intakes of iron (77% vs 7%), zinc (54% vs <3%), and protein (27% vs <3%). FMF infants are more likely to have an early introduction (<12 months) to fruit juice (45% vs 20%) and cow's milk (36% vs 24%). Registered dietitian nutritionists and nutritional professionals should consider tailoring their advice to caregivers on dietary and complementary feeding practices, taking into account the primary mode of milk feeding during this life stage to support infants' nutrient adequacy. National studies that address the limitations of this analysis, including small sample sizes and imputed breast milk volume, could refine findings from this analysis.

Strategies to Improve Mother's Own Milk Expression in Black and Hispanic Mothers of Premature Infants

BACKGROUND

Mother's own milk (MOM) is the gold standard of nutrition for premature infants. Yet, Hispanic and Black preterm infants are less likely than their White counterparts to receive MOM feedings. Evidence is lacking concerning potential modifiable factors and evidence-based strategies that predict provision of MOM among minority mothers of premature infants.

PURPOSE

A review of the literature was conducted to answer the clinical question: "What evidence-based strategies encourage and improve mother's own milk expression in Black and Hispanic mothers of premature infants?"

METHODS/SEARCH STRATEGY

Multiple databases including PubMed, Cochrane, and CINAHL were searched for articles published in the past 10 years (2010 through May 2020), reporting original research and available in English. Initial search yielded zero articles specifically addressing the impact of lactation interventions on MOM provision in minority mothers. Additional studies were included and reviewed if addressed breastfeeding facilitators and barriers (n = 3) and neonatal intensive care unit breastfeeding support practices (n = 7).

FINDINGS/RESULTS

Current strategies used to encourage and improve MOM expression in minority mothers are based on or extrapolated from successful strategies developed and tested in predominantly White mothers. However, limited evidence suggests that variation in neonatal intensive care unit breastfeeding support practices may explain (in part) variation in disparities and supports further research in this area.

IMPLICATIONS FOR PRACTICE

Neonatal intensive care unit staff should consider implementing scaled up or bundled strategies showing promise in improving MOM milk expression among minorities while taking into consideration the cultural and racial norms influencing breastfeeding decisions and practice.

IMPLICATIONS FOR RESEARCH

Experimental studies are needed to evaluate the effectiveness of targeted and culturally sensitive lactation support interventions in Hispanic and Black mothers.

Prenatal and Postnatal Experiences Predict Breastfeeding Patterns in the WIC Infant and Toddler Feeding Practices Study-2

Objective: To examine pre- and postnatal experiential factors associated with desirable breastfeeding patterns in a nationally representative population of low-income women who prenatally enrolled in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) and initiated breastfeeding. Materials and Methods: Using data from the longitudinal WIC Infant and Toddler Feeding Practices Study-2, multivariable, hierarchical logistic regression analyses identified prenatal and postnatal experiential factors associated with three breastfeeding patterns: (1) breastfeeding at 6 months, (2) breastfeeding at 1 year, and (3) breastfeeding at 1 year without introducing formula through age 6 months. Results: After controlling for covariates, one prenatal factor, breastfeeding intentions, and one postnatal factor, receipt of a doctor's recommendation to breastfeed, raised the odds of exhibiting the patterns analyzed. Another postnatal factor, returning to full-time employment before infant age 3 months, lowered the odds of exhibiting the patterns. Prior WIC participation significantly increased the odds of breastfeeding at 1 year, while postnatal employment before infant age 3 months significantly decreased the odds of exhibiting this pattern. Conclusions: Health care providers and those working in public health programs, including WIC, play an important role in helping low-income women mitigate shorter breastfeeding durations. Their efforts should continue focusing on bolstering women's prenatal breastfeeding intentions, reducing structural barriers to breastfeeding in the early postnatal period, particularly among those women returning to work, and connecting low-income families with WIC if they are not already enrolled in the program. This study is registered at clinicaltrials.gov as Feeding My Baby-A National WIC Study, NCT02031978.

Estimating the Impact of In-Hospital Infant Formula Supplementation on Breastfeeding Success

Objective: To assess whether in-hospital infant formula supplementation impacts later successful breastfeeding among healthy mother-infant dyads in the United States who are not intending to exclusively use infant formula. Study Design: Using secondary analysis of a national longitudinal survey (Infant Feeding Practices Study II, n = 2,399), we estimated effects of in-hospital infant formula supplementation on later breastfeeding success by matching mothers whose infants received in-hospital formula supplementation with mothers whose infants did not. Estimates were compared across four matching methods. Outcomes of breastfeeding success included likelihood of following a sustained breastfeeding trajectory for the first year postpartum; feelings of favorability and breastfeeding as long as desired postweaning; and breastfeeding intention, initiation, and duration for subsequent children. Results: In-hospital formula supplementation halved the likelihood of following a breastfeeding trajectory characterized by sustained exclusive breastfeeding. Supplementation decreased feelings of favorability toward breastfeeding postweaning but did not impact the likelihood of feeling that one breastfed as long as desired. Supplementation did not impact intention to breastfeed a future child; it did, however, decrease the likelihood of breastfeeding initiation with a subsequent child by >66% and reduced average duration of breastfeeding any subsequent children by >6 weeks. Conclusion: A lack of experimental methodologies in previous studies makes it difficult to determine a causal link between infant formula in the hospital and less breastfeeding success. Assuming we have accounted for all appropriate confounders, this study provides evidence for such a causal link. Birth hospital policies and practices should speak of this risk of harm.

Revisiting the Relationship between WIC Participation and Breastfeeding among Low-Income Children in the U.S. after the 2009 WIC Food Package Revision

The Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) provides breastfeeding support and free formula to low-income participating infants in the U.S. Literature has consistently documented worse breastfeeding outcomes in WIC infants and children than in non-participants, although self-selection bias poses a challenge in examining the relationship between WIC participation and breastfeeding in low-income mother-child dyads. The WIC program adopted a comprehensive food package revision in 2009, the first one in four decades. Since that time, few national studies have examined the relationship between WIC participation and breastfeeding while controlling for the endogeneity of WIC participation with the propensity score method. This paper applied an instrumental variable (IV) approach on a large, nationally representative survey sample of children, the National Immunization Surveys (NIS), to examine the relationship between WIC participation and breastfeeding among children born between 2005 and 2014. We identified state Supplemental Nutrition Assistance Program (SNAP) enrollment rates and SNAP Policy Indices as valid IVs to address WIC participation endogeneity. Without the IVs, WIC participation had a significantly negative relationship with breastfeeding. After addressing endogeneity using the IVs, the relationship became insignificant in the whole sample and in the subpopulations across race/ethnicity and child gender. The neutrality of WIC participation on breastfeeding is important for policy makers to understand in seeking to improve breastfeeding among WIC participants.

Caring for American Indian and Alaska Native Children and Adolescents

American Indian and Alaska Native (AI/AN) populations have substantial health inequities, and most of their disease entities begin in childhood. In addition, AI/AN children and adolescents have excessive disease rates compared with the general pediatric population. Because of this, providers of pediatric care are in a unique position not only to attenuate disease incidence during childhood but also to improve the health status of this special population as a whole. This policy statement examines the inequitable disease burden observed in AI/AN youth, with a focus on toxic stress, mental health, and issues related to suicide and substance use disorder, risk of and exposure to injury and violence in childhood, obesity and obesity-related cardiovascular risk factors and disease, foster care, and the intersection of lesbian, gay, bisexual, transgender, queer, and Two-Spirit and AI/AN youth. Opportunities for advocacy in policy making also are presented.

Race, ethnicity, WIC participation, and infant health disparities in the United States

PURPOSE

This study examines the association between race and ethnicity, participation in The Special Supplemental Nutrition Program for Women, Infants, and Children (WIC), and a series of infant health outcomes including infant mortality, low birth weight, preterm birth, extended infant hospitalization, and stays in the neonatal infant care unit (NICU).

METHODS

Data are from the Pregnancy Risk Assessment Monitoring System (PRAMS), 2009-2017. Moderation analyses were conducted to assess the association between maternal race and ethnicity, WIC participation, and infant health.

RESULTS

Results indicate infants born to Black women and to a lesser extent Hispanic woman are in worse health than those born to White mothers in the United States. However, participation in WIC is associated with reductions in the gap in infant health experienced by racial and ethnic minorities.

CONCLUSIONS

Prenatal WIC participation is associated with improvements in the health of Black and Hispanic infants and reduced racial and ethnic disparities in infant health outcomes.

Surprising Differences in the Practice of Exclusive Breastfeeding in Non-Roma and Roma Population in Serbia

Background: Exclusive breastfeeding is essential for early childhood development, although the use of adaptive milk formulas instead of breastfeeding is widespread nowadays. This study aimed to examine the prevalence of exclusively breastfed infants under the age of 6 months in non-Roma and Roma population and factors associated with this practice.

Materials and Methods: This study is a secondary analysis of the Serbian Multiple Indicator Cluster Survey investigating non-Roma and Roma infants under the age of 6 months. The study included mothers of 321 non-Roma and 164 Roma infants younger than 6 months. Univariate and multivariate logistic regression served to analyze factors associated with the practice of exclusive breastfeeding in both populations.

Results: The prevalence of exclusive breastfeeding was almost the same among mothers in both non-Roma and Roma population (13.3 vs. 13%, p = 0.910). Exclusive breastfeeding was significantly more often (p < 0.001) among wealthier women, women whose newborns were over 2,500 g on birth, multipara, and women who had not established menstrual cycle among both populations. Living outside the capital significantly diminishes the chance for exclusively breastfed infants in the non-Roma community (Vojvodina: OR 0.16, CI 95% 0.03–0.92; eastern Serbia: OR 0.02, CI 95% 0.01–0.35) as well as living in the rural area (urban: OR 10.35, CI 95% 1.94–55.28). Unexpectedly, in the non-Roma population, not staying in the same room with the newborn in the maternity ward increases the chance for the baby to be exclusively breastfed (OR 7.19, CI 95% 1.80–28.68). The same pattern has been observed in Roma population. Non-Roma mothers multipara are more likely to exclusively breastfeed their children than primipara (OR 7.78, CI 95% 1.09–20.93), while among Roma mothers, the inverse association has been found although not significant (OR 0.42, CI 95% 0.14–1.23). Attending a childbirth preparation program more than 18 times increases the chances of infants being exclusively breastfed (OR 18.65, CI 95% 1.34–53.67). In the Roma population, there was no single woman that attended a childbirth preparation program.

Conclusion: The pattern of exclusive breastfeeding significantly differs between non-Roma and Roma populations. Preventive work should have focus on strengthening support to mothers and medical staff in maternity wards.

Are Low-Income, Diverse Mothers Able to Meet Breastfeeding Intentions After 2 Months of Breastfeeding?

Background: Little is known about intended breastfeeding duration of women who initiate breastfeeding. We describe the association between intended and actual breastfeeding duration among low-income, diverse mothers who report maintaining breastfeeding for the first 2 months postpartum. Materials and Methods: We included mothers (64% Hispanic, 17% non-Hispanic black) participating in Greenlight, a cluster randomized childhood obesity prevention trial, who were providing breast milk at the 2-month preventive service visit and reported intended breastfeeding duration at this visit. Breastfeeding status was assessed at subsequent visits, up to 24 months. Poisson regression with a robust variance estimator was used to estimate risk ratios and 95% confidence intervals for meeting breastfeeding intentions. Covariates included race/ethnicity, income, receiving benefits from the Special Supplemental Nutrition Assistance Program for Women, Infants and Children (WIC), education, age, employment, depression, maternal obesity, U.S. born, whether infant was first born, and study site. Results: Median intended breastfeeding duration was 11.5 months (interquartile range [IQR]: 6-12) and median actual breastfeeding duration was 8.6 months (IQR: 4-14) (n = 349). Approximately half (49%) met intended breastfeeding duration. Breastfeeding duration differed based on milk type provided at the 2-month visit in that mothers providing mostly or only breast milk had increased likelihood of meeting breastfeeding intentions. Regardless of milk type provided at 2 months, the longer a mother intended to breastfeed, the less likely she was to meet her breastfeeding intentions. Conclusions: In this diverse sample of women less than half met breastfeeding intentions despite maintaining breastfeeding for 2 months. Understanding factors that prevent mothers from attaining intended breastfeeding duration is critical to improving breastfeeding outcomes, especially in low income and ethnic minority populations.

Characteristics of and Sources of Support for Women Who Breastfed Multiples for More than 12 Months

Background and Objective: Although rates of breastfeeding initiation for multiples may be similar to those of singletons, breastfeeding duration falls short. Evidence-based interventions tailored to families with multiples may help reduce the gap; however, these do not yet exist and will require a stronger knowledge base about factors related to successful breastfeeding of multiples for long durations. To characterize mothers of multiples who breastfed for >12 months and identify support factors that were important. Materials and Methods: Mothers of multiples who breastfed for >12 months completed an online questionnaire about their breastfeeding experiences. Bivariate statistics and log-binomial regression were used to examine associations among maternal characteristics, influential factors, and sources of breastfeeding support. Results: This sample of 1,173 women commonly cited partner support, the nutritional/health benefits of breastfeeding, building a strong bond, and enjoyment of breastfeeding as important influences on their decision to breastfeed for >12 months. Younger women, women with less education, Hispanic or Latina women, and nonwhite women were more likely to indicate that cost was important in their decision to breastfeed for more than 12 months (all chi-square p < 0.02). Women with more children were less likely to discuss their decision with their friends or partner (e.g., women with 5+ versus 2 children, relative risk for partner = 0.65, 95% confidence interval: 0.52-0.81). Conclusion: Interventions to encourage long-term breastfeeding of multiples might consider promoting the cost, health, and relationship building benefits. Mobilizing a variety of supports-including partners and family-could help mothers of multiples sustain breastfeeding.

Breastfeeding Persistence at 6 Months: Trends and Disparities from 2008 to 2015

OBJECTIVE

To assess trends and disparities in breastfeeding by maternal characteristics (race and ethnicity, age at delivery, obesity, parity, and level of education) and the relative importance among these for breastfeeding at 6 months.

STUDY DESIGN

This retrospective birth cohort study included 195 861 live singleton children born at 32-42 weeks of gestation from 2008 to 2015 within a single integrated healthcare system. All children had healthcare coverage during the first year of life. Maternal characteristics and breastfeeding status at 6 months of age were extracted from electronic medical records. Trends over time of any breastfeeding ≥6 months were evaluated for the 5 maternal characteristics. Robust Poisson regression models were used to estimate breastfeeding rate differences associated with each of the 5 characteristics. The relative importance among them associated with breastfeeding ≥6 months was assessed by comparing model quasi-likelihood information criteria.

RESULTS

Rates of breastfeeding ≥6 months significantly increased overall and among groups defined by the maternal characteristics. However, there was little improvement over time in closing disparities associated with maternal race and ethnicity, age at delivery, prepregnancy obesity status, and level of education. Education level contributed to the greatest disparity in breastfeeding ≥6 months. Maternal age was the second factor, followed by prepregnancy obesity and maternal race and ethnicity.

CONCLUSIONS

Breastfeeding outreach programs focusing on women with less than a college education, women <25 years old, and women from non-Hispanic black or Hispanic race and ethnicity may help to reduce disparities and improve breastfeeding persistence rates within integrated healthcare systems.

Associations Between Maternity Care Practices and 2-Month Breastfeeding Duration Vary by Race, Ethnicity, and Acculturation

Objectives This study examines the associations between specific maternity care practices and breastfeeding duration for Spanish-speaking Hispanic, English-speaking Hispanic, non-Hispanic Native American, and non-Hispanic White women. Methods We analyzed data from the 2012-2014 New Mexico Pregnancy Risk Assessment Monitoring System. We used survey language as a proxy measure of acculturation and categorized women as Spanish-speaking Hispanic, English-speaking Hispanic, non-Hispanic Native American, and non-Hispanic White. We conducted bivariate analyses to compare rates of breastfeeding at 2 months and experiences of maternity care practices and logistic regression analysis to estimate the effects of these practices on breastfeeding duration for each group. Results Hispanic women were less likely than non-Hispanic women to breastfeed for at least 2 months (67.9% vs. 76.6%; p = 0.000); however, this varied significantly by acculturation level: 78.1% of Spanish-speaking Hispanic women compared to 66.1% of English-speaking Hispanic women breastfed for at least 2 months (p = 0.000). The effects of specific maternity care practices on duration varied across groups. Among non-Hispanic White, Native American, and English-speaking Hispanic women, breastfeeding while at the hospital had the strongest effect (AOR 2.09, 95% CI 1.67-2.61; AOR 2.71, 95% CI 2.08-3.52; and AOR 1.99, 95% CI 1.76-2.25, respectively). Among Spanish-speaking Hispanic women, being encouraged to breastfeed on demand had the strongest effect (AOR 5.179, 95% CI 3.86-6.94). Conclusions for Practice The effects of maternity care practices on breastfeeding duration vary by race, ethnicity, and acculturation level. Health care systems must acknowledge the diversity of their patient populations when seeking to develop and implement breastfeeding-friendly practices.

A Randomized Trial of Prenatal Video Education to Improve Breastfeeding Among Low-Income Women

Background: Many women initiate breastfeeding but do not meet their duration goals, and low-income women initiate and continue breastfeeding at lower rates than their counterparts. One-on-one counseling is associated with increased breastfeeding but requires significant resources. In contrast, video education, which requires fewer resources and is effective in other health care settings, such as vaccine uptake, has gone untested for prolonging breastfeeding duration among low-income women. Objective: To determine whether use of an educational breastfeeding video shown individually to low-income pregnant women in the prenatal clinic would prolong duration of any and exclusive breastfeeding. Methods: A multicenter, randomized, controlled trial was conducted in four prenatal clinics. Low-income pregnant women were randomized to view the intervention (breastfeeding education) or control (prenatal nutrition) video in the third trimester and interviewed by telephone at 1, 3, and 6 months postpartum about infant feeding practices. Kaplan-Meier survival curves with log-rank tests and Cox proportional hazards regression were utilized to compare groups. Results: Of the 816 eligible women approached, 64% participated: 263 assigned to the intervention, and 259 assigned to the control. Six-month data were obtained for 211 (80%) and 220 (85%) women, respectively. Rate of breastfeeding cessation did not differ by group (hazard ratios; HR = 1.00, 95% confidence interval [CI]: 0.81-1.24 and HR = 0.93, 95% CI: 0.76-1.14, for any and exclusive breastfeeding, respectively). Conclusion: A single viewing of a breastfeeding education video shown in the prenatal clinic did not impact breastfeeding duration or exclusivity among low-income women in this study. Although not sufficient alone, educational videos may be useful as one component of a comprehensive program to promote breastfeeding.

"I Felt Like I Was a Part of Trying to Keep My Baby Alive": Perspectives of Hispanic and Non-Hispanic Black Mothers in Providing Milk for Their Very Preterm Infants

Background: Compared with non-Hispanic white, Hispanic and non-Hispanic black mothers of very preterm infants are less likely to provide mother's milk at the point of hospital discharge; the perspectives of these mothers are poorly understood. Objectives: To examine the perceived barriers and facilitators of providing milk for very preterm infants during the hospitalization among Hispanic and non-Hispanic black mothers. Materials and Methods: We conducted 23 in-depth, semistructured interviews of English and Spanish-speaking Hispanic and non-Hispanic black mothers that initiated milk production for their very preterm infants, ≤1,750 g at birth. Following thematic saturation, results were validated through expert triangulation and member checking. Results: Twelve mothers were Hispanic, where three were English speaking and nine were Spanish speaking. Eleven mothers were non-Hispanic black and English speaking. We found themes pertaining to general experiences: (1) Breastfeeding intent impacts mothers' success in providing milk throughout the hospitalization; (2) Pumping milk for a hospitalized infant is repetitive, exhausting, and does not elicit the same emotional connection as breastfeeding; (3) Hospital providers are an important source of support, when sufficient time is spent to address ongoing issues; (4) Providing milk creates a unique sense of purpose when mothers otherwise feel a lack of control; and we found themes pertaining to the experiences of Hispanic and non-Hispanic black mothers: (1) Breastfeeding as a cultural norm influences mothers' intent to initiate and continue breastfeeding; (2) Hospital staff are viewed as more supportive when interactions and treatment are perceived as racially/ethnically unbiased and (3) when communication occurs in the primary language; and (4) Mother-infant separation creates logistical challenges that negatively impact ongoing milk production. Conclusions: While providing milk for a hospitalized very preterm infant is exhausting, and logistically challenging, Hispanic and non-Hispanic black mothers are inspired to do so because of their intent to breastfeed, support from hospital providers, and feelings of purpose.

Food Consumption Patterns of Infants and Toddlers: Findings from the Feeding Infants and Toddlers Study (FITS) 2016

Background

The prevalence of obesity and type 2 diabetes continues to increase. These conditions disproportionately affect minorities and are associated with poor nutrition early in life. Current food-consumption patterns can inform pending dietary guidelines for infants and toddlers.

Objective

The aim of this study was to describe infant feeding, complementary feeding, and food and beverage consumption patterns of 0- to 23.9-mo-olds in the general population.

Methods

The Feeding Infants and Toddlers Study 2016 is a cross-sectional survey of caregivers of children aged <4 y. Dietary data were collected from a national random sample by using a 24-h dietary recall (n = 3235). The percentage of children consuming foods from >400 food groups was calculated. Differences in the percentage consuming between Hispanic, non-Hispanic white, and non-Hispanic black children aged 0-23.9 mo were evaluated with the use of ORs and 95% CIs.

Results

Eighty-three percent of 0- to 23.9-mo-olds (n = 2635) were ever breastfed, 34% of 0- to 3.9-mo-olds (n = 305) and 15% of 4- to 5.9-mo-olds (n = 295) were exclusively breastfed, and 24% of 12- to 14.9-mo-olds (n = 412) consumed breast milk on the day of the recall. Complementary foods were more likely to be introduced before 4 mo in formula-fed infants (27%) than in infants who did not consume formula (5%). Half of 4- to 5.9-mo-olds consumed iron-fortified infant cereal, but few consumed iron-rich meats. Among toddlers (12-23.9 mo; n = 1133), >20% consumed no servings of fruit or vegetables on the day of the recall, approximately half consumed 100% fruit juice, and one-quarter to one-third consumed a sugar-sweetened beverage (SSB).

Conclusions

Breastfeeding initiation and duration have improved, but exclusivity remains low. Low consumption of iron-rich foods, fruit, and vegetables and lack of variety in vegetable consumption are problems. Efforts to reduce the consumption of SSBs and 100% fruit juice are warranted in early childhood.

Postpartum Contraception and Interpregnancy Intervals Among Adolescent Mothers Accessing Public Services in California

Objective To determine the association of age at index birth with postpartum contraceptive use and optimal interpregnancy interval (IPI, defined as delivery to next pregnancy >18 months), controlling for provider type and client demographics among adolescent mothers who have repeat pregnancies. Methods California's 2008 birth records were linked to California's Medi-Cal and Family PACT claims data to identify 26,393 women with repeat births between 2002 and 2008, whose index birth occurred as an adolescent, and who received publicly-funded services within 18 months after the index birth. Multivariable regression analyses were conducted to examine the relationship between timing of contraception provision and interpregnancy intervals, adjusting for socio-demographic factors. Results Seventy-eight percent of adolescent women did not receive contraception at their first postpartum visit, and twenty-eight percent of adolescent women never received contraception from a Family PACT or Medi-Cal provider. Adolescents who were older at their index birth had lower rates of optimal IPIs. Native American, Asian-Pacific Islander and Latina women had lower rates of optimal IPIs compared to white women. Compared to those using only barrier methods, adolescent women receiving highly effective contraceptive methods had a 4.25 times higher odds of having an optimal IPI than those receiving hormonal methods (OR 2.10), or using no method (OR 0.70). Conclusion Effective postpartum contraceptive use and being a Family PACT provider were associated with optimal birth spacing among adolescent mothers, yet racial and ethnic disparities persisted. A missed opportunity was the provision of contraception at the first postpartum visit. Providers should aim to remove barriers to initiation of contraception at this visit.

Breastfeeding Support: A Geographic Perspective on Access and Equity

BACKGROUND

Clinical lactation professionals, breastfeeding peer counseling, and mother-to-mother support are important sources of information and guidance for helping mothers initiate and maintain breastfeeding in the early weeks, months, and years postpartum. However, there is limited information concerning the geographic barriers that mothers face when seeking this support. Research aim: This study aimed to identify the geographic barriers to breastfeeding support, delineate gaps in access, assess inequities in the distribution of local support, and highlight the underlying differences in access and equity for different demographic and socioeconomic groups.

METHODS

The locations of formal breastfeeding support resources were collected for the state of Ohio for 2016 and were combined with demographic and socioeconomic estimates and derived transportation catchment areas to conduct an analysis of spatial access and equity.

RESULTS

Significant geographic gaps in formal breastfeeding support exist within the state of Ohio. Although urban areas benefit from a higher density of support options, including a wide variety of clinical experts and mother-to-mother support groups, inequities in exurban and rural areas were more strongly aligned with socioeconomic status than geography. In particular, the Special Supplemental Nutrition Program for Women, Infants, and Children offices in rural Ohio offer breastfeeding support to income-qualifying mothers but cannot address the needs of mothers who do not qualify.

CONCLUSION

Spatial analytical approaches facilitate a more nuanced view of access and equity to breastfeeding support options, helping to both decompose important structural differences in the state of Ohio and identify locations that could benefit from additional breastfeeding support resources.

Integrative Literature Review of Factors Related to Breastfeeding in African American Women: Evidence for a Potential Paradigm Shift

BACKGROUND

Human milk has widespread health benefits for infants, mothers, and society. However, not all populations of women, particularly African American women, engage in human milk feeding at high rates. Research aim: The purpose of this integrative literature review is twofold: (a) to examine factors that influence low rates of human milk feeding among African American women and (b) to introduce a need for a methodological paradigm shift to develop culturally relevant and effective interventions.

METHODS

The authors searched four electronic social science databases for peer-reviewed journal articles pertaining to human milk among African American women published from 1990 to 2015. Both coauthors independently assessed these articles using thematic analysis and validation. The database search yielded 47 peer-reviewed articles.

RESULTS

Three main themes emerged explaining the human milk feeding disparity: (a) the social characteristics of women likely not to feed human milk (e.g., low socioeconomic status, single); (b) women's perceptions of human milk feeding; and (c) the quality of human milk feeding information provided by health care providers (i.e., limited human milk information).

CONCLUSION

Current literature does include sociohistorical factors that have shaped current norms. Adding sociohistorical frameworks, paying particular attention to the embodied experience of historical trauma, could lead to the development of new evidence-based, culturally sensitive interventions to enhance human milk feeding in the African American community.

Incentive-based Intervention to Maintain Breastfeeding Among Low-income Puerto Rican Mothers

BACKGROUND AND OBJECTIVE

Despite maternal and child health benefits, breastfeeding rates are relatively low among low-income Puerto Rican mothers. This study examined the hypothesis that monthly financial incentives would significantly increase the proportion of breastfeeding mothers at 6 months postpartum compared with Supplemental Nutrition Program for Women, Infants, and Children (WIC) services only among Puerto Rican mothers.

METHODS

A randomized, 2-arm parallel-group design, from February 2015 through February 2016. Half of the randomized participants received monthly financial incentives contingent on observed breastfeeding for 6 months (Incentive), and the other half received usual WIC services only (Control). Thirty-six self-identified Puerto Rican women who initiated breastfeeding were enrolled. Monthly cash incentives were contingent on observed breastfeeding increasing the amount given at each month from $20 to $70 for a total possible of $270.

RESULTS

The intent-to-treat analysis showed significantly higher percentages of breastfeeding mothers in the incentive group at each time point compared with those in the control group (89% vs 44%, P = .01 at 1 month; 89% vs 17%, P < .001 at 3 months; 72% vs 0%, P < .001 at 6 months). No significant differences were detected at any time point between study groups for self-reported exclusive breastfeeding rate and infant outcomes (ie, weight, emergency department visits).

CONCLUSIONS

Contingent cash incentives significantly increased breastfeeding through 6-month postpartum among WIC-enrolled Puerto Rican mothers; however, no significant differences between the study groups were observed on exclusive breastfeeding rate and infant outcomes. Larger-scale studies are warranted to examine efficacy, implementation potential, and cost-effectiveness.

Community Rates of Breastfeeding Initiation

BACKGROUND

Breastfeeding initiation rates vary considerably across racial and ethnic groups, maternal age, and education level, yet there are limited data concerning the influence of geography on community rates of breastfeeding initiation.

OBJECTIVE

This study aimed to describe how community rates of breastfeeding initiation vary in geographic space, highlighting "hot spots" and "cool spots" of initiation and exploring the potential connections between race, socioeconomic status, and urbanization levels on these patterns.

METHODS

Birth certificate data from the Kentucky Department of Health for 2004-2010 were combined with county-level geographic base files, Census 2010 demographic and socioeconomic data, and Rural-Urban Continuum Codes to conduct a spatial statistical analysis of community rates of breastfeeding initiation.

RESULTS

Between 2004 and 2010, the average rate of breastfeeding initiation for Kentucky increased from 43.84% to 49.22%. Simultaneously, the number of counties identified as breastfeeding initiation hot spots also increased, displaying a systematic geographic pattern in doing so. Cool spots of breastfeeding initiation persisted in rural, Appalachian Kentucky. Spatial regression results suggested that unemployment, income, race, education, location, and the availability of International Board Certified Lactation Consultants are connected to breastfeeding initiation.

CONCLUSION

Not only do spatial analytics facilitate the identification of breastfeeding initiation hot spots and cool spots, but they can be used to better understand the landscape of breastfeeding initiation and help target breastfeeding education and/or support efforts.

The Relationship Among Breastfeeding, Postpartum Depression, and Postpartum Weight in Mexican American Women

OBJECTIVE

To determine if symptoms of postpartum depression and postpartum weight varied according to the level of breastfeeding among women of Mexican origin at 1 month and 6 months postpartum.

DESIGN

Secondary quantitative analysis to study the differences in postpartum weight and depression among the mothers in the study who breastfed and those who did not.

SETTING

A heavily Hispanic community located in a major Southwestern U.S. city.

PARTICIPANTS

Women of Mexican origin (N = 150) who enrolled during their third trimesters in a local Special Supplemental Nutrition Program for Women, Infants, and Children clinic and were followed for 6 months.

METHODS

Weight was measured at 1 month and at 6 months postpartum at home visits with validated digital scales. Breastfeeding was measured according to World Health Organization criteria and recorded after monthly phone calls. Depression was measured at home visits at 1 month and 6 months with the Edinburgh Postnatal Depression Scale.

RESULTS

At 6 months postpartum, participants who did not breastfeed had the highest scores on the Edinburgh Postnatal Depression Scale; participants who breastfed nonexclusively had the lowest scores (p = .067). At both time points, there was a significant difference in weight (p = .017) between women who were doing any breastfeeding and women who were not breastfeeding.

CONCLUSION

Breastfeeding, even if not exclusive, contributed to lower depression scores and significantly lower postpartum weight among this sample of Mexican American women.

Comparing Weight-for-Length Status of Young Children in Two Infant Feeding Programs

Objectives A cross-sectional study comparing weight-for-length status of children 6-24 months old who participated in Nurse-Family Partnership (NFP) or Special Supplemental Program for Women, Infants, and Children (WIC). Methods Secondary analysis of NFP (n = 44,980) and WIC (n = 31,294) national datasets was conducted to evaluate infant and toddler growth trajectories. Weight-for-length status was calculated at 6, 12, 18, and 24 months based on World Health Organization criteria. Demographics and breastfeeding rates were also evaluated. Binary logistic regression was used to calculate odds ratios for high weight-for-length (≥97.7 percentile) at each time point. Results At 6 months, approximately 10 % of WIC and NFP children were classified as high weight-for-length. High weight-for-length rates increased for both groups similarly until 24 months. At 24 months, NFP children had significantly lower rates of excess weight (P = 0.03) than WIC children, 15.5 and 17.5 % respectively. At all time points, non-Hispanic white children had lower rates of high-weight for length than Hispanic and non-Hispanic black children. NFP infants were also found to have higher rates of ever being breastfed than WIC infants (P < 0.0001). Conclusions for Practice Infant and toddler populations served by NFP or WIC were found to be at increased risk for high weight-for-length. This study found NFP participation was associated with a small, but significant, protective impact on weight-for-length status at 24 months. Continued efforts need to be made in addressing weight-related racial/ethnic and socioeconomic disparities during early childhood.

Characteristics associated with breastfeeding behaviors among urban versus rural women enrolled in the Kansas WIC program

The Special Supplemental Nutrition Program for Women, Infants and Children (WIC) is a public nutritional assistance program for low-income women and their children up to age five. This study provides insight into maternal characteristics associated with breastfeeding among urban versus rural women. A secondary analysis was conducted using the Pregnancy Nutrition Surveillance System dataset of women enrolled in the Kansas WIC program in 2011. Geographic residency status was obtained through application of the Census tract-based rural-urban commuting area codes. Descriptive variables included maternal demographics, health, and lifestyle behaviors. A multivariable binary logistic regression was used to obtain adjusted odds ratios with 95 % confidence intervals. The outcome variable was initiation of breastfeeding. A P value of ≤0.05 was considered statistically significant. The total sample size was 17,067 women. Statistically significant differences regarding socio-demographics, program participation, and health behaviors for urban and rural WIC participants were observed. About 74 % of all WIC mothers initiated breastfeeding. Urban women who were Hispanic, aged 18-19, high school graduates, household income >$10,000/year, and started early prenatal care were more likely to breastfeed. Urban and rural women who were non-Hispanic black with some high school education were less likely to breastfeed. Increased breastfeeding initiation rates are the result of a collaborative effort between WIC and community organizations. Availability of prenatal services to rural women is critical in the success of breastfeeding promotion. Findings help inform WIC program administrators and assist in enhancing breastfeeding services to the Kansas WIC population.

Associations Among Lactation, Maternal Carbohydrate Metabolism, and Cardiovascular Health

In mammalian reproductive physiology, lactation follows pregnancy; growing evidence suggests that disruption of this physiology affects a woman's lifetime risk of metabolic disease. These differences may reflect lactation-induced mobilization of fat stores and modulation of maternal stress reactivity. In addition, confounders may play a role: women who breastfeed for long durations are more likely to engage in other healthy behaviors, and obesity and insulin resistance may interfere with breastfeeding physiology. These findings underscore the importance of evidenced-based care to enable women to achieve their infant feeding goals.

Racial and ethnic disparities in breastfeeding

This article's aim is to review the literature on racial and ethnic disparities in breastfeeding rates and practices, address barriers to breastfeeding among minority women, conduct a systematic review of breastfeeding interventions, and provide obstetrician-gynecologists with recommendations on how they can help increase rates among minority women. In order to do so, the literature of racial and ethnic disparities in breastfeeding rates and barriers among minority women was reviewed, and a systematic review of breastfeeding interventions among minority women on PubMed and MEDLINE was conducted. Racial and ethnic minority women continue to have lower breastfeeding rates than white women and are not close to meeting the Healthy People 2020 goals. Minority women report many barriers to breastfeeding. Major efforts are still needed to improve breastfeeding initiation and duration rates among minority women in the United States. Obstetrician-gynecologists have a unique opportunity to promote and support breastfeeding through their clinical practices and public policy, and their efforts can have a meaningful impact on the future health of the mother and child.

Prioritization of resources for participants in a peer counseling breastfeeding support program

BACKGROUND

Peer counseling (PC) breastfeeding support programs have proven effective in increasing breastfeeding duration in low-income women.

OBJECTIVES

This study aimed to describe program participants and breastfeeding duration in a PC program according to (1) timing of enrollment (prenatal vs postnatal) and (2) breastfeeding status at program exit (discontinued breastfeeding, exited program while breastfeeding, and completed 1 year program) to improve understanding of how these groups differ and how services might be optimized when resources are limited.

METHODS

This study is a secondary analysis of data from low-income women enrolled in a PC breastfeeding support program. Participant characteristics and breastfeeding duration were described using chi-square tests, analyses of variance, and logistic regression.

RESULTS

Postnatal enrollees had longer breastfeeding duration than prenatal enrollees (F < .001) and were more likely to be older, to be married, to be more educated, and to have prior breastfeeding experience (each variable P < .01). Women who withdrew from the program while breastfeeding were more demographically similar to those who discontinued breastfeeding prior to 1 year than to those who continued in the program breastfeeding for 1 year, although they breastfed for significantly longer at exit (mean ± SD = 27.8 ± 14.8 weeks) compared to women who discontinued breastfeeding while in the program (15.7 ± 13.3 weeks) (P < .001).

CONCLUSION

It may be advantageous for peer counselors to direct fewer resources to later postnatal enrollees and more to prenatal or early postnatal enrollees. It may also be advantageous to focus on supporting women at high risk of discontinuation rather than on retaining women who choose to withdraw from the program while breastfeeding.

Ethnic variation in breastfeeding and complimentary feeding in the Republic of Ireland

Early nutrition plays a pivotal role in long-term health. The World Health Organization (WHO) recommends exclusive breastfeeding during the first six months of life, with the gradual introduction of solids after this period. However, studies in the Republic of Ireland (ROI) have shown poor compliance with guidelines. The ROI continues to have one of the lowest breastfeeding rates worldwide. Our objective was to analyse differences in breastfeeding and complimentary feeding behaviours between Irish and non-Irish mothers residing in the ROI, as well as the role of acculturation on these behaviours, using the national longitudinal study, Growing Up in Ireland (GUI). Mothers (n = 11,134) residing in the ROI were interviewed when their infants were nine months of age. The percentage of Irish mothers who initiated breastfeeding was 49.5%, as opposed to 88.1% among the non-Irish cohort (p < 0.001). Breastfeeding initiation reduced from 89.4% of non-Irish mothers who had arrived within the last year to five years ago to 67.5% for those who had arrived 11 to >20 years ago (p < 0.001). Our results indicate that cultural differences are an important factor in shaping patterns of infant feeding in the ROI. Reviewing existing support and education policies for parents is required to achieve the implementation of desirable infant feeding practices.

Interpregnancy intervals: impact of postpartum contraceptive effectiveness and coverage

OBJECTIVE

The purpose of this study was to determine the use of contraceptive methods, which was defined by effectiveness, length of coverage, and their association with short interpregnancy intervals, when controlling for provider type and client demographics.

STUDY DESIGN

We identified a cohort of 117,644 women from the 2008 California Birth Statistical Master file with second or higher order birth and at least 1 Medicaid (Family Planning, Access, Care, and Treatment [Family PACT] program or Medi-Cal) claim within 18 months after index birth. We explored the effect of contraceptive method provision on the odds of having an optimal interpregnancy interval and controlled for covariates.

RESULTS

The average length of contraceptive coverage was 3.81 months (SD = 4.84). Most women received user-dependent hormonal contraceptives as their most effective contraceptive method (55%; n = 65,103 women) and one-third (33%; n = 39,090 women) had no contraceptive claim. Women who used long-acting reversible contraceptive methods had 3.89 times the odds and women who used user-dependent hormonal methods had 1.89 times the odds of achieving an optimal birth interval compared with women who used barrier methods only; women with no method had 0.66 times the odds. When user-dependent methods are considered, the odds of having an optimal birth interval increased for each additional month of contraceptive coverage by 8% (odds ratio, 1.08; 95% confidence interval, 1.08-1.09). Women who were seen by Family PACT or by both Family PACT and Medi-Cal providers had significantly higher odds of optimal birth intervals compared with women who were served by Medi-Cal only.

CONCLUSION

To achieve optimal birth spacing and ultimately to improve birth outcomes, attention should be given to contraceptive counseling and access to contraceptive methods in the postpartum period.

Women's perceptions of breastfeeding barriers in early postpartum period: a qualitative analysis nested in two randomized controlled trials

OBJECTIVES

This study examined women's perceptions of early infant feeding experiences and identified early postpartum barriers to successful breastfeeding.

SUBJECTS AND METHODS

We conducted semistructured exit interviews at 6 months postpartum with a subsample of participants (n=67) enrolled in two randomized controlled trials of breastfeeding promotion. Study arms included (1) routine pre- and postnatal visits with an International Board Certified Lactation Consultant (IBCLC) (LC group), (2) electronically prompted guidance from prenatal care providers (EP group), (3) EP+LC combined, and (4) standard of care (control group). Interview transcripts were coded using grounded theory and analyzed in MAXqda. Code matrices were used to identify early postpartum breastfeeding barriers and were further examined in relation to treatment group using a mixed methods analysis.

RESULTS

The majority of the participants reported experiencing at least one barrier to breastfeeding. Barriers to breastfeeding were more commonly reported in the early postpartum than late postpartum period. The most common barrier during the early postpartum period was the perception of inadequate milk supply ("lactational") (n=18), followed by problems with latch, medical problems that were perceived as precluding breastfeeding, and medical staff and hospital practices. Participants frequently reported that the IBCLCs assisted them in anticipating, managing, and overcoming these barriers.

CONCLUSIONS

Our findings underscore the importance of integrating IBCLCs into routine pre- and postpartum care because they provide critical support that effectively addresses early postpartum barriers to breastfeeding.

Links between obesity, diabetes and ethnic disparities in breast cancer among Hispanic populations

Breast cancer is the most prevalent malignancy in women worldwide and is a growing concern due to rising incidence and ongoing ethnic disparities in both incidence and mortality. A number of factors likely contribute to these trends including rising rates of obesity and diabetes across the globe and differences in genetic predisposition. Here, we emphasize Hispanic populations and summarize what is currently known about obesity, diabetes and individual genetic predisposition as they relate to ethnic disparities in breast cancer incidence and mortality. In addition, we discuss potential contributions to breast cancer aetiology from molecular mechanisms associated with obesity and diabetes including dyslipidemia, hyperglycaemia, hyperinsulinaemia, endocrine dysfunction and inflammation. We propose that unique differences in diet and lifestyle coupled with individual genetic predisposition and endocrine/immune dysfunction explain most of the ethnic disparities seen in breast cancer incidence and mortality.

Recruiting and retaining low-income, multi-ethnic women into randomized controlled trials: successful strategies and staffing

Developing effective recruitment and retention strategies in populations with traditionally high attrition rates is critical to the success of Randomized Controlled Trials (RCTs). Data on successful participation of women from low-income, minority populations in RCTs of behavioral interventions are limited. This is problematic given the multiplicity of Healthy People 2020 goals that target health disparities in these populations. This paper reports successful recruitment and retention methods from two separately funded NIH clinical trials of primary care-based prenatal interventions to increase breastfeeding among ethnically diverse, low-income women in urban medical centers in the Bronx, NY. It also presents the required staff effort necessary to conduct such a successful RCT, in terms of full-time equivalents (FTEs). Results include timely recruitment of 941 participants over 29 months, with 98.1% completing >¯¯1 follow-up interview. A recruitment and retention plan that maximized study staff access and availability to the participant, as well as strong study staff rapport with participants, addressed previously reported barriers in this population, optimizing follow-up rates. A qualitative assessment of the participants' study experience suggesting that high retention was due to strong rapport with participants, short interviews requiring little time commitment, and participants' perception of the study as informative, provides further evidence of our approach's effectiveness. Logistical protocol procedures and staff management strategies relating to successful recruitment/retention are provided to propose a practical, cost-effective and translational recruitment-retention plan for other researchers to adopt.