Journal of Human Lactation最新文献

Background: The field of lactation currently uses breastfeeding rates to measure effectiveness. While monitoring breastfeeding outcomes can provide insight into the successes of lactation consulting as a profession, the improvement of breastfeeding outcomes is a multifactorial issue. In order to facilitate the growth of lactation education processes, understanding experiences during training and perceptions of readiness of current International Board Certified Lactation Consultants (IBCLC) for clinical practice is necessary.

Research aim: The aim of this survey was to provide a baseline assessment of the current landscape of the lactation profession through data related to certification, job market, practice confidence after passing the International Board of Lactation Consultant Examiners (IBLCE) certifying examination, and perceptions of specializations.

Methods: A cross-sectional study design was used to assess the experiences of practicing IBCLCs. Non-probability convenience sampling was implemented from December 2021 through January 2022. A total of 281 unique responses were recorded with complete data on variables of interest.

Results: The majority of respondents were white females under age 50 located in the United States. The majority of respondents were certified through a Pathway 1. The largest barrier to certification was reported to be a lack of clinical/mentorship opportunities. Respondents were significantly more confident in providing entry-level support to dyads when mentored by four or more preceptors.

Conclusion: Diversification of the field of lactation is necessary to provide appropriate support to lactating families in the United States. Additionally, addressing the barrier of accessing clinical/mentorship opportunities is essential for continued growth of the field of lactation.

Background: Human milk is essential for a child's best development. However, what a mother eats while breastfeeding can directly influence the composition of mother's milk.

Research aim: This study aimed to assess the antioxidant-oxidant profile of human milk and establish a connection between this profile and the dietary habits of the mothers.

Methods: A cross-sectional study was conducted at the Hospital Infantil e Maternidade Alzir Bernardino Alves (HIMABA), located in the municipality of Vila Velha-ES, Brazil. The sample included 98 participants. All volunteers completed a structured interview and a Food Frequency Questionnaire. Approximately 5-10 ml of colostrum, transitional milk, and mature milk were manually collected. The antioxidant activity of human milk was assessed using the colorimetric method for free radical scavenging with 2,2'-azinobis-3-ethylbenzothiazoline-6-sulfonic acid. Oxidative stress was determined by measuring lipid peroxidation through malondialdehyde concentration, evaluating advanced oxidation protein products, and assessing total protein content using the Bradford method.

Results: The antioxidant profile of colostrum was higher than that observed in later phases of milk, whereas pro-oxidants increased in later phases. Maternal dietary patterns influenced the pro-oxidant status of human milk. Participants with a higher daily intake of milk, dairy products, vegetable oils, olive oils, and legumes exhibited lower levels of lipid peroxidation in colostrum, transition milk, and mature milk, respectively.

Conclusions: Our study highlights the vital role of a balanced maternal diet in shaping the pro-oxidant status of human milk, with implications for infant health.

Background: Prior research has explored the association between women's employment status and breastfeeding at the individual level, however; a notable gap in scholarly inquiry exists regarding the relationship between labor market performance and breastfeeding at the population level.

Research aim: The aim of this paper is to investigate the association between labor market performance and breastfeeding prevalence in the United States.

Methods: This study is a cross-sectional analysis of the association between labor market performance and the prevalence of breastfeeding. Our analysis is conducted at the state level using data published up to late 2021 from the Current Population Survey and the National Immunization Survey. The first dataset was used to construct aggregate and sex-specific state level indicators of labor market performance for both males and females. The second dataset supplied the proportion of mothers breastfeeding for the corresponding birth cohort from each state.

Results: Higher average weekly hours worked by females in the year before giving birth was associated with a lower prevalence of breastfeeding, but employment rates among females did not significantly affect breastfeeding prevalence. Among males, current employment rates were positively associated with breastfeeding prevalence; however, no significant relationship was observed between breastfeeding prevalence and average weekly work hours worked.

Conclusion: Sex-specific labor market performance may play a role in breastfeeding decisions and the timing of labor market performance relative to childbirth is important. Furthermore, these results highlight that employment rates and hours worked might be associated with child health through breastfeeding prevalence.

Background: Auricular acupressure influences pain reduction in patients with diseases. However, study results on its influence on breast pain, common among breastfeeding mothers, are insufficient.

Research aim: This study aimed to explore the effectiveness of auricular acupressure on breast pain among breastfeeding mothers who also received a standard gentle hand technique.

Methods: This was a placebo-controlled study wherein auricular acupressure was provided for 4 weeks to 52 breastfeeding mothers consulting a local breastfeeding clinic. In the intervention group, auricular acupressure was applied to specific acupoints, including Shenmen, central rim, breast, and endocrine, which are related to breast pain and postpartum lactation. For the placebo control group, auricular acupressure was applied to acupoints not related to breast pain. The degree of breast pain was assessed using a numeric rating scale and a pressure algometer.

Results: After 4 weeks of auricular acupressure, numeric rating scale pain scores did not show a significant change. However, the pressure pain threshold for the upper left (Z = -2.202, p = .028) and upper right (t = 2.613, p = .012) areas of the right breast increased significantly in the intervention group.

Conclusion: This study employed subjective and objective measurements to evaluate the efficacy of auricular acupressure in alleviating breast pain. The intervention shows potential as a nursing measure. Further research is required to determine the optimal intervention duration and frequency, particularly for breastfeeding parents with severe pain, and to evaluate long-term outcomes.

Background: Raw, never stored or pasteurized mother's own milk (MOM) is not always available to feed preterm infants; however, storage and pasteurization of MOM diminishes some bioactive components. It can be difficult to feed raw MOM to preterm infants due to transportation and storage of small volumes that might be pumped away from the infant, and a concern that they might harbor bacteria. However, the higher availability of bioactive components in raw MOM may provide benefits to preterm infants compared to frozen or pasteurized MOM.

Research aim: To systematically review and summarize the results of studies on feeding raw MOM versus frozen or pasteurized MOM to preterm infants born at less than 37 weeks of gestation.

Methods: Four databases were searched (Cochrane, Embase, Ovid MEDLINE, and Web of Science) for this systematic review. Of 542 studies identified, nine met inclusion criteria and were critically evaluated using the quality assessment tool for quantitative studies by the Effective Public Health Practice Project. Studies were organized using the Breastfeeding Challenges Facing Preterm Mother-Infant Dyads theoretical framework.

Results: Included studies evaluated the outcomes of preterm infants fed raw versus pasteurized MOM (n = 7, 77.8%) or raw versus frozen MOM (n = 2, 22.2%). Researchers found that raw MOM did not increase infant infections and may have improved health and growth outcomes for study participants.

Conclusion: There is laboratory evidence supporting the safety and efficacy of the use of raw MOM for preterm infants. A raw MOM diet is recommended for preterm infants by professional organizations. Despite this, it may not be universally prioritized and could require purposeful implementation by each institution. Further research is needed to pursue the potential benefits of a raw MOM diet for preterm infants.

Background: Breastfeeding is the best source of nutrition for infants. Health literacy is a critical factor affecting breastfeeding rates.

Research aims: The aim of this research was to develop and test the Breastfeeding Health Literacy Scale to determine its validity and reliability.

Methods: This study featured a cross-sectional telephone survey design. Researchers reviewed the literature and used expert opinions to develop the content-validated 30-item Breastfeeding Health Literacy Scale covering five dimensions. We examined internal consistency, exploratory factor analysis, and confirmatory factor analysis to assess reliability and construct validity. A Taiwanese government organization provided potential participants' contact information. After mailing an invitation letter, researchers phoned all participants to invite participation, obtain oral consent and complete a Breastfeeding Health Literacy Scale and collect demographic data.

Results: Participants (N = 300) had a mean age of 31.8 (SD = 4.66) years. The item-level content validity index was 0.67 to 1.00 and scale-content validity index was 0.94. After performing exploratory factor analysis, three factors were extracted. Examining content factor analysis for the three factors resulted in χ²/df = 2.05; p < .001; goodness of fit index = 0.90; Comparative Fit Index (CFI) = 0.96; and Root Mean Square Error of Approximation (RMSEA) = 0.06. Cronbach's alphas on the total scale and the subscales ranged from 0.87 to 0.94. Women with multigravida, breastfeeding information from physicians and nurses, and previous breastfeeding experience had better breastfeeding health literacy.

Conclusions: Psychometric analysis demonstrated that the newly developed 20-item Breastfeeding Health Literacy Scale is a valid self-assessment instrument. Improving breastfeeding health literacy during pregnancy could help enable breastfeeding success.