Mediation of Parental Aggravation in the Association Between ADHD Severity and Electronic Media Use: A National Survey of Children's Health Study.

OBJECTIVE: To determine whether the association between ADHD severity and electronic media use was mediated by parental aggravation. METHODS: This was a retrospective analysis from the 2016 to 2017 National Survey of Children's Health (NSCH) involving children ages of 3 to 17 years with parent-reported ADHD (n = 5,930). Path analyses were used to model the relationships between ADHD severity with parental aggravation (PA) as a mediator, and electronic device (ED) and television (TV) use as outcomes, controlling for covariates. RESULTS: Parental aggravation mediated the relationship between ADHD severity and ED use and TV use (indirect effects: ß = .02, p < .001; ß = .01, p = .004). When stratified by age, the mediation effect between ADHD and ED use remained significant for adolescents and school-age children, and mediation between ADHD and TV use remained significant only for adolescents. CONCLUSION: These findings suggest a need to develop targeted interventions to address PA and manage excessive electronic media use in children with moderate/severe ADHD.

Hyperactivity and Impulsivity Symptoms Mediate the Association Between Adverse Childhood Experiences and Reading Achievement: A LONGSCAN Cohort Study.

Adverse Childhood Experiences (ACEs) include various childhood stressors that can negatively impact the health and well-being of children. ACEs are associated with poor academic achievement. Attention is strongly associated with academic achievement, and there is a graded relationship between ACEs exposure and subsequent development of parent-reported ADHD; however, it is unclear whether ADHD symptoms mediate the relationship between ACEs and academic achievement. This study tested a model of mediation by ADHD symptoms between ACEs and academic achievement (measured by reading score). This retrospective cohort analysis utilized data from the Longitudinal Study on Child Abuse and Neglect (LONGSCAN), a data consortium exploring the impact of child maltreatment (n = 494). There were relatively even numbers of male and female child participants, and the majority of caregivers were either non-Hispanic White or Black. Path analyses were modeled for ACEs as a sum score and separately for individual ACE exposures, with number of symptoms of Inattention (IN) and Hyperactivity/Impulsivity (H/I) as mediators, and academic achievement as the outcome, adjusting for covariates. ACEs were highly prevalent in this sample (M = 5.10, SD = 1.90). After retaining significant covariates, significant direct associations (P < .05) were seen between ACE sum score and IN (ß = .14) and H/I (ß = .21), and between H/I and reading score (ß=-.14). A higher ACE score was associated with lower reading scores through variation in H/I, but not IN. H/I mediated the relationship between ACEs and reading score in this high-risk population, providing new insight into relationships between ACEs and academic achievement, which can inform interventions.

Exploring Racial and Ethnic Differences in Parent-Reported Strengths in Children with Autism Spectrum Disorder.

BACKGROUND: Several studies have demonstrated racial/ethnic differences in parental concerns in children with autism spectrum disorder (ASD). However, no studies have investigated racial/ethnic differences in parent-reported strengths. The purpose of this study was to explore racial/ethnic differences in parent-reported strengths in children with ASD. DESIGN AND METHODS: This was a retrospective cross-sectional study investigating the relationship between parent-reported strengths and race/ethnicity at the time of an ASD diagnosis. Parent-reported strengths were qualitatively clustered into themes, and theme frequencies were quantitatively examined for relationships to race/ethnicity. RESULTS: Parents of Caucasian children reported a mean of 5.00 (SD = 2.17) total strengths compared to 3.75 (SD = 2.32) among Hispanic/Latinx children, 3.36 (SD = 1.43) among Asian/PI children, and 3.91 (SD = 2.05) among children from other races/ethnicities. Bivariate linear regression analyses indicated that Asian/PI, Hispanic, and other child race/ethnicity, compared to Caucasian child race/ethnicity, were associated with significantly fewer parent-reported total strengths. Asian/PI and Hispanic child race/ethnicity were associated with significantly fewer personality strengths, while maternal education was associated with a greater number of personality strengths. CONCLUSION: This study found racial and ethnic differences in parent-reported strengths in children with ASD. Further, higher levels of maternal education influenced total, personality, and behavioral strengths. Receipt of a greater number of child services was also associated with a greater number of behavioral strengths.

Barcoding, linear and nonlinear analysis of full-day leg movements in infants with typical development and infants at risk of developmental disabilities: Cross-sectional study.

Traditional methods do not capture the multidimensional domains and dynamic nature of infant behavioral patterns. We aim to compare full-day, in-home leg movement data between infants with typical development (TD) and infants at risk of developmental disabilities (AR) using barcoding and nonlinear analysis. Eleven infants with TD (2-10 months) and nine infants AR (adjusted age: 2-14 months) wore a sensor on each ankle for 7 days. We calculated the standard deviation for linear variability and sample entropy (SampEn) of leg acceleration and angular velocity for nonlinear variability. Movements were also categorized into 16 barcoding states, and we calculated the SampEn and proportions of the barcoding. All variables were compared between the two groups using independent-samples t-test or Mann-Whitney U test. The AR group had larger linear variability compared to the TD group. SampEn was lower in the AR group compared to TD group for both acceleration and angular velocity. Two barcoding states' proportions were significantly different between the two groups. The results showed that nonlinear analysis and barcoding could be used to identify the difference of dynamic multidimensional movement patterns between infants AR and infants with TD. This information may help early diagnosis of developmental disabilities in the future.

Factor Analysis of the Einstein Neonatal Neurobehavioral Assessment Scale in Infants with Congenital Heart Disease and Healthy Controls.

Background: Administration of the Einstein Neonatal Neurobehavioral Assessment Scale (ENNAS) can be time-consuming, and items can be highly correlated. We aimed to determine: (1) its factor analytic structure; (2) the validity of the factor structure; and (3) the associations of physiologic measures with factor scores. Methods: A factor analysis reduced 21 ENNAS items into 5 factors in 57 congenital heart disease (CHD) and 35 healthy infants. Multiple linear regressions examined the association of factor scores with group, gestational age, and physiologic variables. Results: 5-factor solution: 1 (Orienting Reflex), 2 (Extensor Axial Tone), 3 (Primitive Reflexes), 4 (Flexor Tone), 5 (Reflexive Tone Around Extremity Joints). Moderate to strong evidence supported: face, discriminant, and construct validity of these factors, with Factor 2 having the strongest. Conclusions: Components of Factor 2 may provide similar information about neonatal development, thus reducing the time for and burden of administration for researchers and clinicians.

Association of Coexisting Conditions, Attention-Deficit/Hyperactivity Disorder Medication Choice, and Likelihood of Improvement in Preschool-Age Children: A Developmental Behavioral Pediatrics Research Network Study.

Objectives: To determine whether conditions coexisting with attention-deficit/hyperactivity disorder (ADHD) in preschool-age children are associated with choice of stimulants or alpha-2 adrenergic agonists (A2As) and/or likelihood of improvement in ADHD symptoms. Methods: A retrospective electronic health record review of 497 children from 7 Developmental Behavioral Pediatrics Research Network (DBPNet) sites. Children were <72 months when treated with medication for ADHD from January 1, 2013 to July 1, 2017. We abstracted coexisting conditions, initial medication prescribed, and whether the medication was associated with improvement in symptoms. Analysis of improvement was adjusted for clustering by clinician and site. Results: The median (interquartile range) child age at the time of initiation of ADHD medication was 62 (54-67) months. The most common coexisting conditions included language disorders (40%), sleep disorders (28%), disruptive behavior disorders (22.7%), autism spectrum disorder (ASD; 21.8%), and motor disorders (19.9%). No coexisting conditions were present in 17.1%; 1 in 36.8%, 2 in 26.8%, and ≥3 in 19.3%. Stimulants were initially prescribed for 322 (64.8%) and A2A for 175 (35.2%) children. Children prescribed stimulants were more likely to have no coexisting conditions than those prescribed A2A (22.3% vs. 7.4%; p < 0.001). Coexisting ASD and sleep disorder were associated with increased likelihood of starting A2As versus stimulants (p < 0.0005; p = 0.002). The association between medication treatment and improvement varied by number of coexisting conditions for 0, 1, 2, or ≥3, respectively (84.7%, 73.8%, 72.9%, 64.6%; p = 0.031). Children with ≥3 coexisting conditions were less likely to respond to stimulants than children with no coexisting conditions (67.4% vs. 79.9%; p = 0.037). Conclusions: Among preschool-age children with ADHD, those with ≥3 coexisting conditions were less likely to respond to stimulants than those with no coexisting conditions. This was not found for A2A, but further research is needed as very few children with no coexisting conditions were treated with A2A.

Outcomes and Hand Use of Reaching Attempts: Comparison of Infants at Risk for Developmental Disability and Infants With Typical Development.

Background: Infants at risk for developmental disabilities often show signs of motor delay. Reaching is a skill that can help us identify atypical motor trajectories in early infancy. Researchers have studied performance after onset of reaching, but none have followed infants at risk from pre-reaching to skilled reaching. Aims: We assessed differences in reaching outcomes and hand use as reaching skill emerged in infants at risk for developmental disabilities and with typical development. Methods and Procedures: We followed infants at risk for developmental disabilities (n = 11) and infants with typical development (n = 21) longitudinally as they developed reaching skill. Infants reached for a toy at midline while sitting in the caregiver's lap. Video data were coded for reach outcome (miss, touch, partial grasp, and whole-hand grasp) and hand use (right, left, and bilateral). Outcomes and Results: Infants at risk had a larger proportion of missed reaches across visits compared to infants with typical development. Infants at risk also showed less variability in hand use when grasping over the study period. Conclusion and Implications: Our results provide information to support early differences in reaching performance to inform identification of typical and atypical developmental trajectories. Future studies should assess how the missed reaches are different and consider other quantitative measures of movement variability in infants at risk.

The SIT-PT Trial Protocol: A Dose-Matched Randomized Clinical Trial Comparing 2 Physical Therapist Interventions for Infants and Toddlers With Cerebral Palsy.

OBJECTIVE: Although early intervention for infants at risk for cerebral palsy is routinely recommended, the content of intervention is poorly described, varies widely, and has mixed supporting evidence. The purpose of this study was to compare efficacy of 2 interventions grounded in differing domains of the International Classification of Functioning, Disability and Health on developmental outcomes of infants with or at high risk of cerebral palsy. METHODS: Infants who meet inclusion criteria will be randomized into either Sitting Together and Reaching To Play or Movement, Orientation, Repetition, Exercise Physical Therapy groups. Both groups will receive intervention twice weekly for 3 months and follow-up at 3, 6, 9, and 12 months from baseline. The primary objectives compare changes over time and between groups in sitting, gross motor, and cognitive development. The setting is the infant's home unless the caregiver requests otherwise. One hundred and fifty infants between 8 and 24 months of age will be enrolled in 3 geographically, racially, and ethnically diverse sites: Los Angeles, California; Omaha, Nebraska; and Seattle, Washington. Enrolled infants will demonstrate motor delays, emerging sitting skills, and signs of neurologic impairment. Sitting Together and Reaching To Play targets activities including sitting, reaching, and motor-based problem solving to improve global development. In contrast, Movement, Orientation, Repetition, Exercise Physical Therapy focuses on strengthening and musculoskeletal alignment while encouraging repeated movement practice. Outcome measures include the Gross Motor Function Measure, Bayley Scales of Infant Development-IV, Assessment of Problem Solving in Play, and a Parent Child Interaction assessment. Enrolled children will maintain usual intervention services due to ethical concerns with intervention withdrawal. IMPACT: This will be the first study, to our knowledge, comparing efficacy of early physical therapy with dose-matched interventions and well-defined key principles. The outcomes will inform selection of key principle of intervention in this population.

Leg Movement Rate before and after a Caregiver-Provided Intervention for Infants at Risk of Developmental Disability: A Pilot Study.

AIM: Our purpose was to assess daily leg movement rate before and after a caregiver-provided in-home intervention for infants at risk for developmental disability. We also assessed adherence and quality of caregiver-child interaction. METHODS: Twelve infants, at risk for developmental disabilities, and their caregivers participated in an intervention focused on increasing leg movements. Intervention started between 3- and 6-months corrected age and ended once the infant was able to sit independently or at 9 months corrected age, whichever occurred first. Infants were assessed monthly. RESULTS: Infants at risk for developmental disabilities who were moving less than 1200 leg movements per hour awake at the start of the intervention increased their daily leg movement rate following the intervention (Median [range]: pre-1047 [506-1056], post- 1104 [655-1359], p = 0.040). Additionally, the caregivers had a high adherence (Median: 89%, Range: 11.43%-329.17%) and good quality of caregiver-child interaction (Median NCAST total: 46, Range: 34-59); and maintained similar amounts of adherence (p = 0.575) and quality of caregiver-child interaction (p = 0.432) throughout the intervention. CONCLUSION: This study provides preliminary evidence that leg movement rate has the potential to be used as an outcome measure to assess an infant's progress and motor practice during an intervention.

Navigating School-Based Special Education Services: A Self-Paced Virtual Learning Module.

Introduction: Children with disabilities are particularly vulnerable to school failure, as they are more likely than their peers to experience school dropout and academic struggles. Early identification of learning difficulties and access to special education services are critical to the success of children with disabilities. However, few pediatricians feel competent in screening for risks of school failure and/or assisting families with navigating the special education system. Due to restricted duty hours and limited scheduled didactic time during residency, flexible training options are needed to fill this educational gap and address this systems-based practice competency. Methods: We developed a 30-minute self-paced virtual learning module aimed at educating pediatric residents on strategies for navigating the special education system. The module used a knowledge, attitudes, and self-efficacy framework, as well as case examples and pictorial relationships to illustrate concepts. Wilcoxon signed rank tests were conducted to assess changes in total knowledge, attitude, and self-efficacy scores. Results: After completion of the module, residents' self-efficacy total scores significantly increased (r = .88, p = .001), suggesting that they were more confident in their ability to identify, recognize, and advocate for special education services. Discussion: This virtual learning module successfully increased resident self-efficacy in screening for school failure and navigating the special education system. This highly feasible, self-paced training module can be modified to fit demanding resident schedules and serves as a potential tool to teach trainees and other pediatric providers about the special education system.

Maternal post-traumatic stress and depression symptoms and outcomes after NICU discharge in a low-income sample: a cross-sectional study.

BACKGROUND: Having a preterm newborn and the experience of staying in the neonatal intensive care unit (NICU) has the potential to impact a mother's mental health and overall quality of life. However, currently there are few studies that have examined the association of acute post-traumatic stress (PTS) and depression symptoms and infant and maternal outcomes in low-income populations. DESIGN/ METHODS: In a cross-sectional study, we examined adjusted associations between positive screens for PTS and depression using the Perinatal Post-traumatic stress Questionnaire (PPQ) and the Patient Health-Questionnaire 2 (PHQ-2) with outcomes using unconditional logistic and linear regression models. RESULTS: One hundred sixty-nine parents answered the questionnaire with 150 complete responses. The majority of our sample was Hispanic (68%), non-English speaking (67%) and reported an annual income of <$20,000 (58%). 33% of the participants had a positive PPQ screen and 34% a positive PHQ-2 screen. After adjusting for confounders, we identified that a positive PHQ-2 depression score was associated with a negative unit (95% CI) change on the infant's Vineland Adaptive Behavior Scales, second edition of - 9.08 (- 15.6, - 2.6) (p < 0.01). There were no significant associations between maternal stress and depression scores and infant Bayley Scales of Infant Development III scores or re-hospitalizations or emergency room visits. However, positive PPQ and screening score were associated with a negative unit (95% CI) unit change on the maternal Multicultural Quality of Life Index score of - 8.1 (- 12, - 3.9)(p < 0.01) and - 7.7 (- 12, - 3) (p = 0.01) respectively. CONCLUSIONS: More than one-third of the mothers in this sample screened positively for PTS and depression symptoms. Screening scores positive for stress and depression symptoms were associated with a negative change in some infant development scores and maternal quality of life scores. Thoughtful screening programs for maternal stress and depression symptoms should be instituted.

The association of care transitions measure-15 score and outcomes after discharge from the NICU.

BACKGROUND: Our objectives were (1) to describe Care Transitions Measure (CTM) scores among caregivers of preterm infants after discharge from the neonatal intensive care unit (NICU) and (2) to describe the association of CTM scores with readmissions, enrollment in public assistance programs, and caregiver quality of life scores. METHODS: The study design was a cross-sectional study. We estimated adjusted associations between CTM scores (validated measure of transition) with outcomes using unconditional logistic and linear regression models and completed an E-value analysis on readmissions to quantify the minimum amount of unmeasured confounding. RESULTS: One hundred sixty-nine parents answered the questionnaire (85% response rate). The majority of our sample was Hispanic (72.5%), non-English speaking (67.1%) and reported an annual income of <$20,000 (58%). Nearly 28% of the infants discharged from the NICU were readmitted within a year from discharge. After adjusting for confounders, we identified that a positive 10-point change of CTM score was associated with an odds ratio (95% CI) of 0.74 (0.58, 0.98) for readmission (p = 0.01), 1.02 (1, 1.05) for enrollment in early intervention, 1.03 (1, 1.05) for enrollment in food assistance programs, and a unit change (95% CI) 0.41 (0.27, 0.56) in the Multicultural Quality of Life Index score (p < 0.0001). The associated E-value for readmissions was 1.6 (CI 1.1) suggesting moderate confounding. CONCLUSION: The CTM may be a useful screening tool to predict certain outcomes for infants and their families after NICU discharge. However, further work must be done to identify unobserved confounding factors such as parenting confidence, problem-solving and patient activation.

Collecting Infant Environmental and Experiential Data Using Smartphone Surveys.

We propose that the collection of infant experiential and environmental data using smartphone surveys has the potential to fill a gap in foundational and clinical knowledge. To achieve this, these data need to be collected in a systematic way that is translatable globally. We can then begin to understand differences in child development and physical therapy from a variety of cultures and traditions. An infant's development is shaped by experiences in everyday life, and everyday experiences vary around the world. Hence, it is important to quantify these experiences to better understand variability in developmental trajectories. Recent increase in smartphone access has made the capability of collecting infant experiential data more feasible around the world. We provide examples and suggestions for ways in which experiential and environmental data can be collected for future practice.

Risk Factors for Parenting Stress in Parents of Children Treated with Laser Surgery for Twin-Twin Transfusion Syndrome 2 Years Postpartum.

OBJECTIVE: Twin-twin transfusion syndrome (TTTS) is a rare but serious condition that can occur in monochorionic and diamniotic twin pregnancies. Research indicates almost half of postpartum mothers with TTTS may have clinically significant levels of stress. However, no studies have measured the levels of parenting stress at 2 years postpartum, and little research has been conducted on sources of stress. STUDY DESIGN: A prospective cohort study was conducted. Data were collected from parents whose children were treated with laser ablation in utero and were 2 years old at the time of screening. The Parenting Stress Index - Short Form (PSI-SF) and its three subscales were used to collect data. Descriptive, bivariate, and multivariate analyses were conducted to determine significant predictors associated with each outcome. RESULTS: A total of 99 children from 56 families were enrolled. Unmarried status (B = -22.8; p = 0.039) and lower maternal educational level (B = -7.8; p = 0.01) were both significantly associated with higher PSI-SF total score. CONCLUSION: Subgroups of parents whose pregnancy required laser surgery for TTTS may continue to have clinically significant levels of stress at 2 years postpartum. It is important the health care team is aware of this and the sociodemographic risk factors to provide appropriate support for families.

Child Temperament Outcomes After Laser Surgery for Twin-Twin Transfusion Syndrome.

OBJECTIVE: Twin-twin transfusion syndrome (TTTS) is a severe pregnancy complication of monochorionic (identical) twins that results in markedly discordant in utero environments for each twin. The aim of this study was to test for differences in temperament between former donor (hypovolemic, smaller) and recipient (hypervolemic, larger) twins with TTTS. METHODS: Parents of dual survivors aged 3 to 7 years who underwent in utero laser surgery for TTTS were surveyed using the Children's Behavior Questionnaire-Very Short Form (CBQ-VSF). The CBQ-VSF assessed 3 traits: Surgency, Negative Affect, and Effortful Control. Differences in traits between donor and recipients were assessed using a paired t test. RESULTS: We studied 85 twin pairs treated in utero for TTTS. There were no statistically significant differences in Surgency, Negative Affect, or Effortful Control between recipients and donors, although score differences for each trait varied widely among sibling pairs. CONCLUSION: Despite varied in utero environments, no temperament differences between donor and recipient monozygotic twins were found for the population as a whole. This finding may be of some reassurance to parents whose pregnancies are complicated by TTTS.

Fetal neurodevelopmental recovery in donors after laser surgery for twin-twin transfusion syndrome.

BACKGROUND: Fetal magnetic resonance imaging (MRI) and spectroscopy (MRS) provide a unique opportunity to non-invasively measure markers of neurodevelopment in survivors of twin-twin transfusion syndrome (TTTS). OBJECTIVE: To characterize fetal brain maturation after laser surgery for TTTS by measuring brain volumes and cerebral metabolite concentrations using fetal MRI + MRS. STUDY DESIGN: Prospective study of dual surviving fetuses treated with laser surgery for TTTS. At 4-5 postoperative weeks, fetal MRI was used together with novel image analysis to automatically extract major brain tissue volumes. Fetal MRS was used to measure major metabolite concentrations in the fetal brain. RESULTS: Twenty-one twin pairs were studied. The average (±SD) gestational age at MRI was 25.89 (±2.37) weeks. Total brain volume (TBV) was lower in the donors, although cerebral volumes were not different between twin pairs. Recipients showed lower proportions of cortical and cerebellar volumes, normalized to TBV and cerebral volumes. MRS data showed that biochemical differences between twin brains were related to discrepancy in their brain volumes. CONCLUSION: Although donors have a smaller TBV compared to recipients, proportionality of brain tissue volumes are preserved in donors. MRS maturational markers of fetal brain development show that recovery in donors persists 4 weeks after surgery.

Assessing the Quality of the Systems of Care for Children with Congenital Zika Virus Infection and Other Neurodevelopmental Disabilities in the United States Pacific Island Territories.

Congenital Zika virus (ZIKV) infection can cause lifelong medical and developmental conditions and management needs. There is limited information on the strengths and weaknesses of the systems of care for addressing ZIKV and other neurodevelopmental disabilities (NRD) in the United States (US) Affiliated Pacific Island Territories. Therefore, the purpose of the study was to assess the quality of the chronic illness systems of care for children with congenital ZIKV and other NRD in the US Pacific Island Territories. A cross-sectional study was conducted among health professionals from American Samoa, Guam, and Commonwealth of the Northern Mariana Islands. Participants completed an adapted version of the Assessment of Chronic Illness Care 3.5 (ACIC), which is based on the Chronic Care Model. The median Total Program Score was calculated, which ranged from limited support (0-2), basic support (3-5), reasonably good support (6-8), to fully developed support for care (9-11). Among the 17 health professionals who completed the survey, 47% were Guamanian/Chamorro, 24% were Samoan, 12% were Filipino, and 6% were Other Pacific Islanders. The median (25th percentile, 75th percentile [interquartile range]) Total Program Score was 5 (3, 6 [3]), indicating basic support for ZIKV and other NRD care for children. As more is learned about the full spectrum of clinical findings related to ZIKV, it is critical to continue to build an interdisciplinary maternal and child health workforce with the capacity and preparation to adequately address the special needs of children with ZIKV and other NRD.

How Many Days are Necessary to Represent Typical Daily Leg Movement Behavior for Infants at Risk of Developmental Disabilities?

BACKGROUND: Movement characteristics can differentiate between infants at risk and infants with typical development. However, it is unknown how many days are needed to accurately represent typical daily behavior for infants at risk of developmental disabilities when using wearable sensors. To consider the balance between participant burden and the amount of data collected and optimizing the efficiency of data collection, our study determined (1) how many days were necessary to represent typical movement behavior for infants at risk of developmental disabilities and (2) whether movement behavior was different on weekend days and weekdays. METHODS: We used Opal wearable sensors to collect at least 5 days of 11 infants' leg movement data. The standard (average of 5 days) was compared with four methods (average of the first 1/2/3/4 days) using the Bland-Altman plots and the Spearman correlation coefficient. We also compared the data from the average of 2 weekend days to the average of the first 2 weekdays for 8 infants. RESULTS: The Spearman correlation coefficient comparing the average of the first 2 days of data and the standards were all above 0.7. The absolute differences between them were all below 10% of the standards. The Bland-Altman plots showed more than 90% of the data points comparing the average of 2 days and the standards fell into the limit of agreement for each variable. The absolute difference between weekend days and weekdays for the leg movement rate, duration, average acceleration, and peak acceleration was 15.2%, 1.7%, 6.8% and 6.3% of the corresponding standard, respectively. CONCLUSION: Our results suggest 2 days is the optimal amount of data to represent typical daily leg movement behavior of infants at risk of developmental disabilities while minimizing participant burden. Further, leg movement behavior did not differ distinctly across weekend days and weekdays. These results provide supportive evidence for an efficient amount of data collections when using wearable sensors to evaluate movement behavior in infants at risk of developmental disabilities.

Maternal Depressive Symptoms and Developmental Delay at Age 2: A Diverse Population-Based Longitudinal Study.

OBJECTIVES: Children raised by depressed mothers perform lower on measures of cognitive, emotional, and behavioral skills, compared to children of non-depressed mothers. It is unclear how maternal depressive symptoms (MDS), which persist and accrue over time, impact child development. The purpose of this study was to determine whether cumulative MDS from pre-pregnancy to postpartum influences child development in children by age 2.5. METHODS: Using a longitudinal population-based study design, 2679 racially and ethnically diverse mothers completed the 2014 Los Angeles Mommy and Baby (LAMB) and 2016 Follow-Up surveys. A total MDS score was created based on responses to standardized questions, including the Patient Health Questionnaire-2 (PHQ-2). Data was collected for before pregnancy, during pregnancy, and 4 months postpartum in the 2014 survey, and at 2.5 years postpartum in the 2016 survey. Child development was measured using the CDC's Learn the Signs. Act Early Milestones Checklist. Bivariate and multivariate logistic regressions were conducted. RESULTS: The prevalence of any cumulative MDS was 45.2%. Language, cognitive/adaptive, motor, and social-emotional delays for surveyed toddlers were 7.7%, 4.0%, 1.2%, and 14.2%. After adjusting for covariates, mothers reporting depressive symptoms at all four time points were significantly more likely to report a social-emotional delay in their child (aOR = 4.39, 95% CI - 1.72 to 11.18). CONCLUSIONS FOR PRACTICE: Mothers with cumulative depressive symptoms are at-risk of reporting social-emotional delays by age 2.5. Understanding these effects may help direct resources to target interventions that support mothers with depressive symptoms early-on and promote positive developmental outcomes among their children.