Racial and Ethnic Disparities in Breastfeeding Continuation Among U.S. Hispanic Mothers: Identification of Mechanisms

The importance of community resources for breastfeeding

BACKGROUND

Breastfeeding has long-lasting effects on children's cognition, behavioral, mental and physical health. Previous research shows parental characteristics (e.g., education, race/ethnicity, income level) are associated with breastfeeding initiation and duration. Further, research shows significant variation in access to community resources by race/ethnicity. It is unclear how community resources may impact breastfeeding practices and how this might intersect with maternal race/ethnicity.

METHODS

This study combined nationally-representative data from the Study of Attitudes and Factors Effecting Infant Care (SAFE), which surveyed US mothers immediately after the infant's birth and at two to six months of infant age, with the Child Opportunity Index (COI) 2.0, a census tract measure of community resources associated with child development, to explore the association between community resources and breastfeeding initiation and whether this varies based on maternal race/ethnicity and country of birth. The SAFE Study used a stratified, two-stage, clustered design to obtain a nationally representative sample of mothers of infants, while oversampling Hispanic and non-Hispanic (NH) Black mothers. The SAFE study enrolled mothers who spoke English or Spanish across 32 US birth hospitals between January 2011 and March 2014.

RESULTS

After accounting for individual characteristics, mothers residing in the highest-resourced communities (compared to the lowest) had significantly greater likelihood of breastfeeding. Representation in higher-resourced communities differed by race/ethnicity. Race/ethnicity did not significantly moderate the association between community resources and breastfeeding. In examining within race/ethnic groups, however, community resources were not associated with non-US born Black and Hispanic mothers' rates of breastfeeding, while they were with US born Black and Hispanic mothers.

CONCLUSIONS

Findings suggest that even health behaviors like breastfeeding, which we often associate with individual choice, are connected to the community resources within which they are made. Study implications point to the importance of considering the impact of the contextual factors that shape health and as a potential contributor to understanding the observed race/ethnicity gap.

Human Milk Fortifier After Neonatal Intensive Care Unit Discharge Improves Human Milk Usage Rates for Preterm Infants

BACKGROUND

A common neonatal intensive care unit (NICU) discharge feeding strategy for preterm infants with growth failure who are fed exclusively expressed human milk (EHM) has been to enrich mother's own milk with formula powder or supplement 2-3 feeds per day with formula. However, this strategy displaces human milk from the diet. Our NICU recently adopted the standard practice of adding commercial human milk fortifier (HMF) to human milk feedings after discharge.

OBJECTIVES

We aimed to compare breastfeeding rates and growth using the aforementioned 2 strategies.

METHODS

Preterm infants (<34 wk of gestation at birth) exclusively feeding EHM fortified with HMF at 2 weeks before discharge were included in this retrospective study. The HMF group (n = 92) continued fortifying with HMF at home, whereas the historical comparison group (n = 35) received our previous guidance to enrich or supplement using postdischarge formula.

RESULTS

Rates of human milk exclusivity after discharge decreased significantly less in the HMF group than those in the historical comparison group (to 83% compared with 39% at the first outpatient visit and 27% compared with 6%, respectively, at the second outpatient visit). Rates of any EHM feedings were also significantly higher in the HMF group. Fenton z-scores for weight, length, and head circumference were not significantly different between the groups.

CONCLUSIONS

Continuing EHM fortification with HMF after NICU discharge, rather than enriching or supplementing with postdischarge infant formula, increases rates of feeding EHM for ≥3 mo but does not affect growth.

Behavioural and cognitive-behavioural theories in oral health research: Current state and future directions

OBJECTIVES

Behavioural and cognitive-behavioural theories, models and frameworks have been incorporated for decades in behavioural and social oral health sciences, oral health care, and education of dentists, hygienists, and other oral healthcare professionals.

METHODS

While a myriad of these conceptualizations have been incorporated in this work, there are six of them that have had the greatest impact in the oral health arena: (a) Health Belief Model; (b) Theory of Reasoned Action, Theory of Planned Behavior and Integrated Behavioral Model, which are considered in unison; (c) Social Learning Theory and Social Cognitive Theory which are considered together; (d) Transtheoretical Model/Stages of Change Model; (e) Salutogenesis Model/Theory and Sense of Coherence Framework; and the (f) Behavior Change Wheel, Capability-Opportunity-Motivation-Behavior Model and Theoretical Domains Framework, which are categorized together.

RESULTS

An analysis of nomenclature (i.e. theories, models, frameworks and conceptualizations) is provided in the context of a description of each of these theories and models, with discussion about their aspects that particularly relate to oral health. Additionally, a quantitative, longitudinal view is provided of the frequency of use of these theories and models in the oral health arena. Given the benefits of theory-based intervention development, dissemination and implementation, it is important to consider these theories and models in a collective context.

CONCLUSIONS

At a basic level, these theories and models help in identifying and acting on mechanisms, both of behaviour itself and behaviour change. Future directions are discussed in terms of need for theory evolution and development.