Effect of the INSIGHT Firstborn Parenting Intervention on Secondborn Sleep

Long-Term Effects of a Responsive Parenting Intervention on Child Weight Outcomes Through Age 9 Years: The INSIGHT Randomized Clinical Trial

Importance

Behavioral interventions to treat childhood obesity have had limited success. Primary prevention is desirable, but whether intervention effectiveness can be sustained is unknown.

Objective

To examine the effect of an intervention designed for the primary prevention of obesity and delivered through age 2 years on weight outcomes through age 9 years.

Design, Setting, and Participants

A longitudinal observation of a single-center randomized clinical trial comparing a responsive parenting intervention vs a home safety intervention (control) among primiparous mother-child dyads who completed the assessment at age 3 years with follow-up to age 9 years. All data were analyzed from January 21 to November 15, 2024.

Interventions

Research nurses conducted 4 home visits during infancy and research center visits at ages 1 and 2 years totaling less than 10 contact hours. The responsive parenting curriculum focused on feeding, sleep, interactive play, and emotion regulation.

Main Outcomes and Measures

The primary outcome is body mass index (BMI; calculated as weight in kilograms divided by height in meters squared) across 4 assessments from age 3 through 9 years, with the assessment of study group differences using repeated-measures analysis. A test for an interaction between sex and study group was planned. Secondary outcomes include BMI z scores and prevalence of overweight (BMI ≥85th to <95th percentile) and obesity (BMI ≥95th percentile) at 5, 6, and 9 years.

Results

Of the 232 primiparous mother-child dyads (116 per group) (7 Asian [3%], 11 Black [5%], 1 Native Hawaiian or Other Pacific Islander [0.4%], 207 White [89%], and 6 children with other race and ethnicity [including Asian, Indian, Hispanic, Dominican, and other race; 2.5%]; 121 male children [52%]), 177 (76%) had anthropometric data at age 9 years. From ages 3 to 9 years, children in the responsive parenting group had a lower mean (SD) BMI than controls (16.64 [0.21] vs 17.07 [0.20]; absolute difference, -0.43; P = .049). Sex moderated this effect; female participants in the responsive parenting group had a lower mean (SD) BMI than female participants in the control group (16.32 [0.26] vs 17.32 [0.26]; absolute difference, -1.00; P = .007), with no group differences among male participants. Cross-sectional analyses revealed no differences in BMI z scores or prevalence of overweight or obesity at ages 5, 6, and 9 years between the responsive parenting group and the control group.

Conclusions and Relevance

An early-life responsive parenting intervention resulted in lower BMI from age 3 to 9 years compared with a control intervention. This group difference was driven by effects on female participants, with differences appearing to dissipate over time. A life-course approach may be required to sustain the benefits of early-life responsive parenting interventions for obesity prevention.

Trial Registration

ClinicalTrials.gov Identifier: NCT03555331.

Interactions between poor sleep and negative social cognition pose risk for lower maternal sensitivity

The extent to which mother and infant sleep predict maternal sensitivity as (a) main effects and (b) moderate the association between social cognition about infant crying (i.e., cry processing) and maternal sensitivity was examined in a sample of 299 mother-infant dyads (43% of mothers non-White; 50.5% of infants female). Infant- and mother-oriented cry processing were assessed prenatally using a video recall procedure and mothers self-reported demographics and characteristics reflecting emotional risk. When infants were 2 months old, mothers reported their depressive symptoms and mother and infant sleep. Maternal sensitivity and infant negative mood were observed during free play and the still face. There were no main effects of mother or infant sleep on maternal sensitivity over and above covariates. However, infant total sleep duration across night and day and mother sleep disturbance moderated the effect of mother-oriented cry processing on sensitivity. Specifically, mother-oriented cry processing was associated with lower maternal sensitivity only among mothers whose infants had lower sleep duration and who reported more sleep disturbances. Moderating effects were not apparent for infant night wakings or time awake or mothers' total sleep problems. Constrained opportunities for sleep or respite across the entire day and the totality of mothers' nighttime sleep disturbances, not just those specific to infants' night wakings, undermine maternal sensitivity by exacerbating mothers' preexisting tendency to have self-focused and negative reactions to infant distress. The efficacy of interventions designed to facilitate maternal sensitivity and infant adjustment may be enhanced by adding targeted foci on maternal and infant sleep. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Sleep and Mood Among Women With Histories of Depression When They Used a Responsive Infant Bassinet During the COVID-19 Pandemic

OBJECTIVE

To describe the experiences of women with histories of depression who used a responsive infant bassinet during the first 6 months after birth during the COVID-19 pandemic.

DESIGN

Secondary qualitative descriptive study with analytic expansion.

SETTING

United States.

PARTICIPANTS

Women (N = 139) who gave birth up to 6 months previously and had histories of depression.

METHODS

We used Kyngäs's method of inductive content analysis to analyze 109 open-ended responses that were collected between August 2020 to November 2021 as part of a previously conducted longitudinal study of women who used a responsive bassinet.

RESULTS

Most participants indicated that the responsive bassinet improved their infants' sleep, which, in turn, subjectively improved their sleep and mood. External stressors and challenges presented barriers to good sleep for the participants and their infants, and participants described how these challenges contributed to their symptoms related to mood. When participants reported that they used the responsive bassinet, they shared that their infants were swaddled in the supine sleep position. Participants who did not use the bassinet commonly reported unsafe sleep practices. We identified seven themes from the data: Improved Maternal Sleep Quality, Barriers to Good Maternal Sleep, Mood and Sleep Go Hand and Hand, External Stressors Impair Mood, Improved Infant Sleep Quality, Barriers to Good Infant Sleep, and Safe Sleep Positioning.

CONCLUSION

These findings can be used to inform clinicians on how a responsive bassinet may offer women at high risk for postpartum depression improved sleep and instrumental support. Future researchers should use validated measures to objectively evaluate rates of postpartum depression and sleep quality in high-risk women when using a responsive bassinet.

Methylation profiles at birth linked to early childhood obesity

Childhood obesity represents a significant global health concern and identifying its risk factors is crucial for developing intervention programs. Many "omics" factors associated with the risk of developing obesity have been identified, including genomic, microbiomic, and epigenomic factors. Here, using a sample of 48 infants, we investigated how the methylation profiles in cord blood and placenta at birth were associated with weight outcomes (specifically, conditional weight gain, body mass index, and weight-for-length ratio) at age six months. We characterized genome-wide DNA methylation profiles using the Illumina Infinium MethylationEpic chip, and incorporated information on child and maternal health, and various environmental factors into the analysis. We used regression analysis to identify genes with methylation profiles most predictive of infant weight outcomes, finding a total of 23 relevant genes in cord blood and 10 in placenta. Notably, in cord blood, the methylation profiles of three genes (PLIN4, UBE2F, and PPP1R16B) were associated with all three weight outcomes, which are also associated with weight outcomes in an independent cohort suggesting a strong relationship with weight trajectories in the first six months after birth. Additionally, we developed a Methylation Risk Score (MRS) that could be used to identify children most at risk for developing childhood obesity. While many of the genes identified by our analysis have been associated with weight-related traits (e.g., glucose metabolism, BMI, or hip-to-waist ratio) in previous genome-wide association and variant studies, our analysis implicated several others, whose involvement in the obesity phenotype should be evaluated in future functional investigations.

Persian version of brief infant sleep questionnaire (BISQ): a psychometric evaluation

BACKGROUND

The high prevalence of sleep problems and their negative consequences on children and parents highlight the need to design early screening instruments to evaluate sleep problems in early childhood. We aimed to determine the validity and reliability of the Brief Infant Sleep Questionnaire (BISQ) among the Iranian population.

METHODS AND MATERIALS

This study included 646 one-year-old infants by random sampling from the PERSIAN birth cohort study. Following the forward-backward translation of the BISQ, its psychometric properties, including construct validity in terms of concurrent and convergent validities as well as reliability, were evaluated.

RESULTS

The CVIs and CVR ranged between 0.8 and 1.00 for all items. Therefore, we keep all the items of the original version of the BISQ in the Persian BISQ. Concurrent validity was assessed by comparing items of the Persian BISQ among different maternal views regarding their infant's sleep. All BISQ items were significantly different among the two levels of maternal view about the infant's sleep problem except daytime sleep duration. The convergent validity of the BISQ was evaluated by calculating the correlation between BISQ items and the ISQ (infant sleep questionnaire) total score as a similar tool. ISQ score was adequately correlated with nocturnal sleep latency and the number of waking at night (rs ranged from 0.59 to 0.72). In addition, the associations of mothers' and infants' demographic variables and nutritional and gestational variables with BISQ items were presented to confirm construct validity. Strong correlations were found between the repeated sleep measures for sleep arrangement, sleep position, and sleep situation (kappa ranged from 0.65 to 0.84), nocturnal sleep duration, daytime sleep duration number of wakings at night, night waking duration, nocturnal sleep latency and sleep-onset time (ICC ranged 0.91 to 0.99).

CONCLUSION

The Persian version of the BISQ is a reliable and valid measure for assessing sleep problems in infants. It would be helpful to be utilized for the early diagnosis of infants' sleep problems.

Methylation profiles at birth linked to early childhood obesity

Childhood obesity represents a significant global health concern and identifying risk factors is crucial for developing intervention programs. Many 'omics' factors associated with the risk of developing obesity have been identified, including genomic, microbiomic, and epigenomic factors. Here, using a sample of 48 infants, we investigated how the methylation profiles in cord blood and placenta at birth were associated with weight outcomes (specifically, conditional weight gain, body mass index, and weight-for-length ratio) at age six months. We characterized genome-wide DNA methylation profiles using the Illumina Infinium MethylationEpic chip, and incorporated information on child and maternal health, and various environmental factors into the analysis. We used regression analysis to identify genes with methylation profiles most predictive of infant weight outcomes, finding a total of 23 relevant genes in cord blood and 10 in placenta. Notably, in cord blood, the methylation profiles of three genes (PLIN4, UBE2F, and PPP1R16B) were associated with all three weight outcomes, which are also associated with weight outcomes in an independent cohort suggesting a strong relationship with weight trajectories in the first six months after birth. Additionally, we developed a Methylation Risk Score (MRS) that could be used to identify children most at risk for developing childhood obesity. While many of the genes identified by our analysis have been associated with weight-related traits (e.g., glucose metabolism, BMI, or hip-to-waist ratio) in previous genome-wide association and variant studies, our analysis implicated several others, whose involvement in the obesity phenotype should be evaluated in future functional investigations.

ABM Clinical Protocol #37: Physiological Infant Care-Managing Nighttime Breastfeeding in Young Infants

A central goal of the Academy of Breastfeeding Medicine (ABM) is the development of clinical protocols for managing common medical problems that may impact breastfeeding success. These protocols serve only as guidelines for the care of breastfeeding mothers and infants and do not delineate an exclusive course of treatment or serve as standards of medical care. Variations in treatment may be appropriate according to the needs of an individual patient. The ABM empowers health professionals to provide safe, inclusive, patient-centered, and evidence-based care. Pregnant and lactating people identify with a broad spectrum of genders, pronouns, and terms for feeding and parenting. There are two reasons ABM's use of gender-inclusive language may be transitional or inconsistent across protocols. First, gender-inclusive language is nuanced and evolving across languages, cultures, and countries. Second, foundational research has not adequately described the experiences of gender-diverse individuals. Therefore, ABM advocates for, and will strive to use language that is as inclusive and accurate as possible within this framework. For more explanation, please read ABM Position Statements on Infant Feeding and Lactation-Related Language and Gender (https://doi.org/10.1089/bfm.2021.29188.abm) and Breastfeeding As a Basic Human Right (https://doi.org/10.1089/bfm.2022.29216.abm).