The relationship between cumulative risk and health-related quality of life in youth with sickle cell disease: Moderating effects of secondary control engagement coping.

BACKGROUND: Youth with sickle cell disease (SCD) often experience low health-related quality of life (HRQOL). Engagement in resilience-promoting processes, such as secondary control engagement (SCE) coping, or adapting to stressors, may be linked to contextual risk factors (e.g., poverty status). This study aims to illuminate relationships between a cumulative risk index (CRI), SCE coping, and HRQOL in youth with SCD and test whether SCE coping moderates the relationship between CRI and HRQOL. PROCEDURE: Participants in this cross-sectional study included 63 youth ages 8-18 with SCD. Participants completed measures to assess SCE coping use (Responses to Stress Questionnaire) and HRQOL (PedsQL SCD Module). Six variables from the electronic medical record were compiled in a CRI. Correlational and regression analyses examined relationships between primary variables and moderating effects of SCE coping, respectively. RESULTS: Model results show that SCE coping and CRI explain variation in HRQOL (p = .001), and a significant interaction exists between SCE and CRI (ß = -.29, p = .02), with a stronger inverse relationship between CRI and HRQOL for higher SCE values. This suggests that lower CRI is associated with greater HRQOL for those with higher SCE coping relative to lower SCE coping. CONCLUSIONS: SCE coping may selectively benefit children with SCD experiencing lower cumulative risk, warranting encouragement of this strategy in clinical settings. Findings do not support SCE coping benefits for youth with higher risk, suggesting that the strategy may not be useful when risk-related stressors are especially pervasive; alternative protective factors should be identified for this risk group.

Giving adolescents with cystic fibrosis a voice: Predicting cystic fibrosis nutritional adherence from their decision-making involvement.

OBJECTIVE: Suboptimal nutritional adherence in adolescents with cystic fibrosis (awCF) has been associated with lower lung function. AwCF often have more independence in dietary decisions than younger children, yet little research has examined how adolescent decision-making relates to nutritional adherence. This study explored whether components of adolescent decision-making involvement facilitate enzyme and caloric adherence in awCF. METHODS: 37 families participated and completed study procedures. AwCF and caregivers completed electronic surveys, including the Decision-Making Involvement Scale (DMIS). The DMIS evaluated awCF behaviors during nutrition-related decision-making/discussions with caregivers using DMIS subscales: Child Seek (asking for help/advice from caregivers), Child Express (awCF stating opinions) and Joint/Options (awCF participating in joint decision-making or caregiver providing options). AwCF completed 2, 24-hr diet recalls via videoconferencing/phone to estimate adherence. Chart reviews collected medical information. DMIS subscales were regressed onto enzyme and caloric adherence. RESULTS: 43% of awCF met calorie recommendations; 48.6% took all enzymes as prescribed. Caloric adherence was positively correlated with adolescent- and parent-reported Child Seek (r = 0.53; r = 0.36) and adolescent-reported Joint/Options (r = 0.41). Per adolescent-report, the caloric adherence regression model was significant, with Child Seek contributing unique variance in caloric adherence (ß = .62, p = .03). Parent-reported adolescent-decision-making involvement significantly predicted caloric adherence, but none of the subscales contributed unique variance. No other regressions were significant. CONCLUSIONS: When awCF participated in nutrition-related discussions with a caregiver, especially with questions, caloric adherence was better. Future research should examine whether family factors influence these results. AwCF are encouraged to ask questions in nutrition discussions.

Implementation of standardized asthma management programs in outpatient settings.

PURPOSE OF REVIEW: This article reviews new approaches, facilitators, barriers, and opportunities to increasing adoption of standardized asthma management programs in the outpatient care setting. RECENT FINDINGS: Primary care clinicians providing asthma care in the outpatient setting are challenged by the complexity of guidelines and want standardization of tools that are easy to use and that can be integrated within their practice's workflow. Programs that integrate clinical decision support tools within a practice's electronic health record and provide support from specialists may enhance uptake of asthma management programs in the outpatient setting and reduce asthma morbidity. Lack of an implementation science framework, consideration for organizational context, and clinician buy-in are recently recognized barriers to adoption of asthma programs and improved asthma outcomes. In addition, many of these interventions are labor intensive, costly, and may not be capable of wide dissemination because of the EHR interoperability problem. CONCLUSION: Programs that simplify the guidelines, integrate clinical decision support within the EHR, and ground their approach with an implementation science framework may improve the quality of asthma care provided in the outpatient setting.

Psychometric properties and predictive validity of the PP-ACT.

OBJECTIVE: The Parent Proxy Asthma Control Test (PP-ACT) is a self-report measure of asthma control completed by caregivers on behalf of a child. We examined the psychometric properties and the reliability and predictive validity of the PP-ACT. METHODS: We conducted two studies (one cross-sectional, one longitudinal over three months) that surveyed caregivers (N = 1622) of children with asthma. Caregivers completed the PP-ACT and a variety of other measures, including child health outcomes. RESULTS: We found clear evidence that the five-item PP-ACT assesses two distinct constructs: Items 1-4 (which we call the PP-ACT4) assess symptoms, impairment, and use of a short acting beta-2 blocker (albuterol); Item 5 assesses caregivers' global subjective assessment of their child's asthma control. In addition, the two constructs function as unique predictors of asthma outcomes. Both the PP-ACT4 and Item 5 predicted unique variance in ED visits, the number of symptom-free days, and child quality of life. Only the PP-ACT4 predicted frequency of ICS use and only at Time 1 in Study 1. Conversely, Item 5 predicted exacerbation frequency whereas the PP-ACT4 did not. CONCLUSION: Our findings suggest that researchers and clinicians should treat the PP-ACT4 and Item 5 as distinct indicators of asthma control because they differentially predict asthma outcomes and likely have distinct meanings to caregivers.Supplemental data for this article is available online at https://doi.org/10.1080/02770903.2022.2036755 .

Adolescents' practical knowledge of asthma self-management and experiences in the context of acute asthma: a qualitative content analysis.

OBJECTIVE: To characterize adolescents' practical knowledge of asthma self-management and experiences during acute asthma episodes, and compare practical knowledge between minority and non-minority groups. METHODS: We conducted a secondary analysis using a qualitative descriptive design of textual data collected from 126 adolescents that participated in a randomized controlled trial of an asthma self-management program. Directed content analysis was conducted using four constructs of asthma self-management including symptom prevention, symptom monitoring, acute symptom management, and symptom communication. RESULTS: Most of the adolescents knew how to prevent exercised-induced bronchoconstriction, but had limited understanding about how to assess and monitor the severity of acute symptoms, appropriately use bronchodilators, seek timely medical help, and communicate acute symptoms to caregivers or healthcare providers during a slow-onset and rapid-onset asthma attack. More minority participants monitored asthma using peak expiratory flow than non-minority participants, who often relied on symptom-based monitoring. Minority adolescents more frequently mentioned bronchodilator use to manage asthma attacks, while non-minority adolescents often reported use of complementary and alternative approaches. Minority youth mentioned accessing healthcare services for acute episodes more often than their non-minority counterparts. Minority participants mentioned communicating acute symptoms to their providers, or family members less frequently than non-minority youth. CONCLUSIONS: Adolescents have insufficient practical knowledge about ways to prevent and manage acute asthma. Periodic assessment of learning needs related to asthma attacks should be considered a routine part of clinical visits for adolescents to provide targeted information support to address their identified needs.

Implementation of a pediatric asthma management program in rural primary care clinics.

OBJECTIVE: Rural communities experience a significant asthma burden. We pilot tested the implementation of Easy Breathing, a decision support program for improving primary care provider adherence to asthma guidelines in a rural community, and characterized asthma risk factors for enrollees. METHODS: We implemented Easy Breathing in two rural primary care practices for two years. Patient demographics, exposure histories, asthma severity, asthma medications, and treatment plans were collected. Providers' adherence to guidelines included the frequency of children with persistent asthma who were prescribed guidelines-based therapy and the frequency of children with a written asthma treatment plan on file. Clinicians provided feedback on the feasibility and acceptability of Easy Breathing using a validated survey tool and through semi-structured interviews. RESULTS: Two providers implemented the program. Enrollment included 518 children, of whom 135 (26%) had physician-confirmed asthma. After enrollment into Easy Breathing, 75% of children with asthma received a written asthma treatment plan All children with persistent asthma were prescribed an anti-inflammatory drug as part of their treatment plan. Providers (n = 2) rated Easy breathing as highly acceptable (M = 4.5), feasible (M = 4.5), and appropriate (M = 4.5). Qualitative feedback was positive, with suggestions to integrate the paper-based program into the electronic health record system for broader uptake. Enrollees with asthma were more likely to have a family history of asthma and endorse exposure to tobacco smoke and cockroaches. CONCLUSIONS: Easy Breathing shows promise as a decision support system that can be implemented in rural, medically underserved communities via primary care.

The Association Between Caregiver Coping and Youth Clinic Attendance and Health-related Quality of Life in Pediatric Sickle Cell Disease.

Caregivers of youth with sickle cell disease (SCD) influence the youth disease management and psychosocial outcomes. Effective caregiver coping is important for improving disease management and outcomes since caregivers often report high disease-related parenting stress. This study characterizes caregiver coping and examines its relation to youth clinic nonattendance and health-related quality of life (HRQOL). Participants were 63 youth with SCD and their caregivers. Caregivers completed the Responses to Stress Questionnaire-SCD module to assess primary control engagement (PCE; attempts to change stressors or reactions to stress), secondary control engagement (SCE; strategies to adapt to stress), and disengagement (avoidance) coping. Youth with SCD completed the Pediatric Quality of Life Inventory-SCD module. Medical records were reviewed for the hematology appointment nonattendance rates. Coping factors were significantly different ( F [1.837, 113.924]=86.071, P <0.001); caregivers reported more PCE ( M =2.75, SD =0.66) and SCE ( M =2.78, SD =0.66) than disengagement ( M =1.75, SD =0.54) coping. Responses to short-answer questions corroborated this pattern. Greater caregiver PCE coping was associated with lower youth nonattendance (ß=-0.28, P =0.050), and greater caregiver SCE coping was related to higher youth HRQOL (ß=0.28, P =0.045). Caregiver coping is related to improved clinic attendance and HRQOL in pediatric SCD. Providers should assess caregiver coping styles and consider encouraging engagement coping.

Risk and Protective Factors for Physical Activity Engagement Among Adolescents With Comorbid Asthma and Obesity.

OBJECTIVE: The current study identifies levels of physical activity (PA) engagement among adolescents with neither asthma nor overweight/obesity (OW/OB), one, or both conditions. Risk and protective factors are examined across groups. METHODS: Data from 8th, 9th, and 11th graders were obtained from the 2019 Minnesota Student Survey (N = 125,164). One-way analysis of variance was used to assess PA levels across risk groups. Linear regressions were used to examine patterns of risk and protective factors for adolescent PA engagement across four groups (neither asthma nor OW/OB, asthma only, OW/OB only, and comorbid asthma + OW/OB). Results were stratified by race/ethnicity. RESULTS: Adolescents with OW/OB only or asthma + OW/OB had significantly lower PA levels than youth with asthma only or neither condition (M = 3.65-3.67 days/week, SD = 2.20 vs M = 4.15-4.19 days/week, SD = 2.16-2.17, p < .001). The following variables were associated with adolescent PA (p < .001): Adult community care across all risk groups (ß ranges = .13-.16), depressive symptoms among those with neither and both asthma + OW/OB (ß's = -.10), and extracurriculars among those with asthma + OW/OB (ß = .10). Extracurriculars and parent connectedness were protective for Hispanic adolescents. CONCLUSIONS: Adolescents with OW/OB had significantly lower levels of PA compared to those without, regardless of asthma status. Individual and relational factors influenced adolescent PA. Future research investigating factors influencing adolescent PA should consider depressive symptoms, connectedness to adults in the community, non-sport-related extracurricular activity involvement, and address disparities among minoritized youth.

Physical Activity Engagement: Perspectives From Adolescents With Comorbid Asthma and Overweight/Obesity and Their Caregivers.

OBJECTIVE: Most adolescents do not meet physical activity (PA) guidelines, and engagement rates are even lower among adolescents with asthma and overweight/obesity (OW/OB). Understanding barriers and facilitators to PA engagement that are unique to youth with comorbid asthma and OW/OB is important for PA promotion. The current qualitative study identified caregiver- and adolescent-reported factors contributing to PA among adolescents with comorbid asthma and OW/OB across the four domains of the Pediatric Self-Management Model: individual, family, community, and health care system. METHODS: Participants were 20 adolescents (Mage = 16.01; 55% male) with asthma and OW/OB and their caregiver (90% mothers). Caregivers and adolescents participated in separate semistructured interviews about influences, processes, and behaviors related to adolescent PA engagement. Interviews were analyzed using thematic analysis. RESULTS: Factors contributing to PA varied across four domains. The individual domain included influences (e.g., weight status, psychological and physical challenges, asthma triggers and symptoms) and behaviors (e.g., taking asthma medications, self-monitoring). At the family level, influences included support, lack of modeling, and independence; processes included prompts and praise; and behaviors included engaging in shared PA and providing resources. Community-level influences included surrounding and settings, social support, and cornonavirus disease-2019-related changes, while behaviors included engaging in PA with others and extracurricular activities. CONCLUSIONS: Influences, processes, and behaviors across multiple domains interact to impact adolescent PA engagement, highlighting factors that may be potential leverage points in prevention and intervention efforts to promote adolescent PA.

Sleep and asthma management in youth with poorly-controlled asthma and their caregivers: a qualitative approach.

OBJECTIVE: Youth with poorly-controlled asthma are at increased risk for sleep disturbances caused by nocturnal symptoms like coughing. Asthma-related sleep disturbances can have downstream consequences for youth with asthma and their families. This study aims to describe (1) sleep disturbances in adolescents with poorly-controlled asthma and their caregivers and (2) the relationship between sleep and asthma management. METHODS: Adolescents with poorly-controlled asthma and their caregivers completed the Family Asthma Management System Scale (FAMSS), a semi-structured interview that assesses youth asthma management within the family context. Interviews were audio-recorded and transcribed. Two authors coded each transcript for sleep-related data in NVivo using descriptive content analysis. RESULTS: Thirty-three adolescents ages 12-15 years old (M = 13.2, SD = 1.2) with poorly-controlled asthma and their caregivers participated in this study. Four main themes emerged: sleep difficulties, sleep environment, sleep and self-management, and fatigue and self-management. 42% of youth and caregivers reported worse nocturnal asthma symptoms (e.g. coughing) that caused frequent nighttime awakening. Approximately 27% of caregivers expressed distress over their child's nocturnal asthma and described their management strategies (e.g. co-sleeping, nighttime symptom monitoring). Adolescents described sleepiness as a barrier to asthma self-management tasks (e.g. medication adherence, response to exacerbation). CONCLUSION: Interview responses demonstrated the considerable interrelationship of sleep and asthma management in adolescents with poorly-controlled asthma. Asthma providers should consider discussing sleep difficulties with their adolescent patients and their families. Addressing these difficulties may help adolescents improve their asthma self-management and help caregivers better cope with their child's disease.

Situating household management of children's asthma in the context of social, economic, and environmental injustice.

BACKGROUND: Structural determinants of health are social, economic, and environmental forces that generate unequal opportunities for resources and unequally distribute exposure to risk. For example, economic constraint, racial discrimination and segregation, and environmental injustice shape population-level asthma prevalence and severity. Structural determinants are especially relevant to consider in clinical settings because they affect everyday household asthma management. OBJECTIVE: To examine how structural determinants shape everyday household management of pediatric asthma and offer a framework for providers to understand asthma management in social context. DESIGN: Qualitative interviews of caregivers for children with asthma. PARTICIPANTS: Participants included 41 caregivers in two U.S. cities: St. Louis, Missouri (n = 25) and Gainesville, Florida (n = 16). Most caregivers were women (83%), Black (73%) and/or had low socioeconomic status (SES; 78%). Caregivers cared for children with asthma aged 0-4 (32%), 5-11 (68%) and 12-17 (54%). APPROACH: We carried out narrative interviews with caregivers using an adapted McGill Illness Narrative Interview and using qualitative analysis techniques (e.g. inductive and deductive coding, constant comparison). KEY RESULTS: Caregivers highlighted three ways that structural determinants complicated asthma management at home: 1) housing situations, 2) competing household illnesses and issues, and 3) multi-household care. CONCLUSIONS: By connecting social, economic, and environmental injustices to the everyday circumstances of asthma management, our study can help providers understand how social contexts challenge asthma management and can open conversations about barriers to adherence and strategies for supporting asthma management at home. We offer recommendations for medical system reform, clinical interactions, and policy advocacy.

Daily adherence variability and psychosocial differences in adolescents with asthma: a pilot study.

Adolescents with asthma endorse psychosocial difficulties as barriers to inhaled corticosteroid adherence. This study examined patterns of variability in adherence and within-person associations of psychosocial variables with adherence across days. Participants included twenty-five adolescents (Mage = 14.7, SD = 1.68; 48% male) with persistent asthma. We measured adherence via electronic monitoring. Adolescents completed daily surveys measuring asthma symptoms, stress, mood, and affect. We examined within-person differences in the effect of symptoms and psychosocial variables on adherence. Adherence decreased over time. The addition of a random slope improved model fit (- 2ΔLL(1) = 9.36, p < .01). Greater asthma symptoms were significantly associated with higher adherence at the within-person level and with lower adherence between persons. We observed evidence of individual differences in the associations of stress and affect with adherence. Within-person, day-level fluctuations in adherence occur. Symptoms and psychosocial variables may influence adherence. Individually tailored interventions may effectively address nonadherence.

Meta-Analysis of Adherence Promotion Interventions in Pediatric Asthma.

BACKGROUND: Youth with asthma commonly have suboptimal adherence to inhaled corticosteroids (ICS). It is critical to systematically evaluate the effectiveness of ICS adherence promotion interventions and discern which techniques are most effective. OBJECTIVE: This study aims to (1) quantify the extent to which interventions improve ICS adherence in pediatric asthma, (2) explore differences in effect size estimates based on intervention and study characteristics, and (3) characterize the risk of bias across interventions. METHODS: We conducted literature searches across five databases. Included studies quantitatively measured ICS adherence as an intervention outcome among youth (<18 years old) diagnosed with asthma and were published after 1997. We analyzed aggregate effect sizes and moderator variables using random-effects models and characterized risk of bias using the Cochrane Collaboration tool. RESULTS: Thirty-three unique studies met inclusion criteria. At post-intervention, the aggregate effect size for pediatric ICS adherence promotion interventions was small but significant (n = 33, g = 0.39, 95% confidence interval [CI] = 0.24-0.54); however, the aggregate effect size at follow-up was not statistically significant (n = 6, g = 0.38, 95% CI = -0.08 to 0.83). Method of adherence measurement and intervention format were significant moderators. Most interventions had a high risk of performance bias and an unclear risk of bias in one or more domains. CONCLUSIONS: ICS adherence promotion interventions are effective among youth with asthma. Additional longitudinal research is needed to quantify a more precise measure of intervention effectiveness over time, and moderators of intervention effectiveness should be reassessed as the literature base expands.

Adaptive mHealth Intervention for Adolescent Physical Activity Promotion.

OBJECTIVE: The present nonrandomized controlled trial aimed to evaluate feasibility, acceptability, and preliminary efficacy of a tailored text message intervention for increasing adolescent physical activity, as compared with passive monitoring. METHODS: Forty adolescents (13-18 years old) received either a tailored text messaging intervention (Network Underwritten Dynamic Goals Engine [NUDGE]; N = 20), or participated in an attention-control condition (N = 20), for 20 days. Physical activity was measured for all participants via continuous accelerometry. Frequency analyses were conducted on program usage and satisfaction ratings to evaluate feasibility and acceptability, and multilevel models were used to evaluate the efficacy hypotheses. RESULTS: The vast majority of participants (90%) reported being very or mostly satisfied with the NUDGE program and rated their enjoyment as above average. The intervention group was estimated to spend an average of 20.84 more minutes per day in moderate-to-vigorous physical activity relative to the attention-control group (ß = 20.84, SE = 8.19). Exploratory analyses revealed that the intervention group also engaged in 82 fewer minutes of sedentary time per day on average, although this effect was not significant due to the large variability in sedentary time (ß = -81.98, SE = 46.86). CONCLUSIONS: The NUDGE tailored text messaging intervention was feasible, acceptable, and efficacious in increasing physical activity in this sample. Findings warrant additional evaluation of NUDGE as both a standalone physical activity intervention or as part of a multicomponent package.

Sleep hygiene in adolescents with asthma.

Objective: Youth with asthma are at-risk for sleep difficulties due to nocturnal asthma symptoms. Sleep hygiene, or the ability to practice consistent sleep behaviors and habits, impacts youth sleep quality and may, as a result, influence daytime cognitive functioning. The current study sought to examine the impact sleep hygiene has on sleep quality, health-related quality of life (HRQL) and sustained attention among adolescents with asthma. It was hypothesized that worse sleep hygiene would be associated with poorer sleep quality, lower school-related and overall HRQL and worse sustained attention. Methods: Participants included 41 adolescents with persistent asthma (Mage = 14.83, SD = 1.28; 51.2% male) recruited from a pediatric pulmonology clinic. Participants completed the adolescent sleep hygiene scale (ASHS), Adolescent Sleep Wake Scale (ASWS) and the Pediatric Quality of Life Index 4.0 generic core scales (PedsQL). Participants also completed the psychomotor vigilance task (PVT), an objective test of sustained attention. Results: Higher sleep hygiene scores were related to higher reported sleep quality (ß = 0.377, p = 0.015, f2 = 0.166), higher reported school-related HRQL (ß = 0.321, p = 0.040, f2 = 0.115) and better sustained attention (ß = 0.327, p = 0.045, f2 = 0.120). Conclusions: Sleep hygiene may be an important factor in sleep quality and deficits in daytime dysfunction including sustained attention and school-related quality of life. As adolescents with asthma are at heightened risk for these outcomes associated with disturbed sleep, sleep hygiene may serve as an important domain for clinical intervention.

Asthma Management Responsibility, Control, and Quality of Life Among Emerging Adolescents.

OBJECTIVE: To examine how asthma control is related to the association between the division of responsibility for asthma management and asthma-related quality of life among early adolescents. METHODS: Forty-nine youth aged 10-15 years (Mage = 12.25, 57.1% female) with a physician-verified asthma diagnosis completed the Standardized Pediatric Asthma Quality of Life Questionnaire (PAQLQ) and Asthma Control Test (ACT). Youth and their caregivers also completed the Asthma Responsibility Questionnaire (ARQ). Higher ACT scores indicate better asthma control. RESULTS: There was a significant difference in ARQ scores between youth and caregivers (p < .001, d = .94). Youth reported sharing equal responsibility for asthma management with caregivers, while caregivers reported having more responsibility relative to youth. Greater youth-reported ARQ (p = .004) and greater ACT scores (p < .001) were associated with higher PAQLQ scores. ACT scores moderated the effect of youth-reported ARQ on PAQLQ scores (p = .043). For youth with lower ACT scores, higher youth-reported responsibility was associated with higher PAQLQ scores; while for youth with higher ACT scores, PAQLQ scores were high regardless of perceived responsibility. The interaction between caregiver ARQ scores and ACT scores was not significant. CONCLUSION: This study suggests youth and caregivers report discrepant ARQ for asthma management tasks. Responsibility and level of asthma control are important factors for PAQLQ, with results indicating that fostering responsibility is an important factor, even among youth with poorly controlled asthma. Findings suggest that healthcare providers should assess family responsibility and help caregivers support adolescents in developing asthma management skills.

SBRT planning for spinal metastasis: indications from a large multicentric study.

BACKGROUND: The dosimetric variability in spine stereotactic body radiation therapy (SBRT) planning was investigated in a large number of centres to identify crowd knowledge-based solutions. METHODS: Two spinal cases were planned by 48 planners (38 centres). The required prescription dose (PD) was 3â€¯× 10 Gy and the planning target volume (PTV) coverage request was: VPD > 90% (minimum request: VPD > 80%). The dose constraints were: planning risk volume (PRV) spinal cord: V18Gy < 0.35 cm3, V21.9 Gy < 0.03 cm3; oesophagus: V17.7 Gy < 5 cm3, V25.2 Gy < 0.03 cm3. Planners who did not fulfil the protocol requirements were asked to re-optimize the plans, using the results of planners with the same technology. Statistical analysis was performed to assess correlations between dosimetric results and planning parameters. A quality index (QI) was defined for scoring plans. RESULTS: In all, 12.5% of plans did not meet the protocol requirements. After re-optimization, 98% of plans fulfilled the constraints, showing the positive impact of knowledge sharing. Statistical analysis showed a significant correlation (p < 0.05) between the homogeneity index (HI) and PTV coverage for both cases, while the correlation between HI and spinal cord sparing was significant only for the single dorsal PTV case. Moreover, the multileaf collimator leaf thickness correlated with the spinal cord sparing. Planners using comparable delivery/planning system techniques produced different QI, highlighting the impact of the planner's skills in the optimization process. CONCLUSION: Both the technology and the planner's skills are fundamentally important in spine SBRT planning optimization. Knowledge sharing helped to follow the plan objectives.

Topical Review: Design Considerations When Creating Pediatric Mobile Health Interventions: Applying the IDEAS Framework.

OBJECTIVE: To present a guiding framework from the perspective of psychologists and technologists to develop effective mobile health (mHealth) interventions for pediatric populations. METHODS: This topical review uses the IDEAS framework as an organizational method to summarize current strategies to conceptualize, design, evaluate, and disseminate mHealth interventions. RESULTS: Incorporating theories of behavior change and feedback from target populations are essential when developing mHealth interventions. Following user-centered approaches that fully incorporate end users into design and development stages increases the likelihood that the intervention will be acceptable. Iterative design cycles and prototyping are important steps to gather user feedback to optimize an mHealth intervention. Broad sharing of knowledge and products generated during intervention development also is recommended. Assessment of behavioral principles, intervention components, or a full intervention package should be conducted to evaluate usability and efficacy. CONCLUSIONS: Pediatric health-care researchers and clinicians are increasingly using mHealth technology to target health behaviors and improve related outcomes. Pediatric psychologists should consider applying the design strategies outlined in the IDEAS framework to produce and disseminate mHealth interventions tailored to the specific needs of pediatric populations.

The Role of Child and Adolescent Adjustment Problems and Sleep Disturbance in Parent Psychological Distress.

The goal of this study was to examine the moderating role of youth sleep disturbance on the relationship between youth internalizing and externalizing symptoms and parent psychological distress. Participants were 225 youth (ages 8-17) and parent dyads attending a primary care clinic appointment. Participants completed questionnaires that assessed parent psychological distress, youth internalizing symptoms, youth externalizing symptoms, and youth sleep disturbance. Moderation analyses were conducted to examine whether youth sleep disturbance moderated the relationship between youth internalizing and externalizing symptoms and parent psychological distress. The interaction between youth internalizing symptoms and youth sleep disturbance was significantly related to parent psychological distress, such that having increased sleep disturbance amplified the positive relationship between internalizing symptoms and parent psychological distress. The moderation model explained 52% of the variance in parent psychological distress. The interaction between youth externalizing symptoms and youth sleep disturbance was also significantly related to parent psychological distress, such that increased sleep disturbance amplified the positive relationship between externalizing symptoms and parent psychological distress. This model accounted for 53% of the variance in parent psychological distress. Greater youth sleep disturbance strengthens the positive relationship between youth internalizing/externalizing symptoms and parent psychological distress. Accordingly, reducing youth sleep disturbance may serve as an appropriate intervention target in families experiencing increased parent psychological distress.

Influence of asthma status on sleep variability in overweight/obese youth.

OBJECTIVE: Pediatric asthma and overweight/obesity (OV/OB) frequently co-occur and youth with both conditions exhibit poor sleep/bedtime habits. This study assessed differences in week-to-weekend bedtime/wake time variability among OV/OB youth with/without comorbid asthma, and tested whether variability predicted weekday sleep. METHODS: OV/OB youth (n = 142; 28% comorbid asthma; 7-12 years) wore an Accelerometer for 5 days (2 weekend days), providing estimates of week-to-weekend bedtime/wake-time variability, weekday Total Sleep Time (TST), weekday time in bed (TIB), and weekday wake after sleep onset (WASO). RESULTS: There were no demographic differences between groups beyond lower family income for the OV/OB+asthma group. The OV/OB+asthma group exhibited later weekday (mean OV/OB+asthma = 10:39 pm, mean OV/OB only = 10:30pm) and weekend (mean OV/OB+asthma = 11:41 pm, mean OV/OB only = 11:17pm) bedtimes, earlier weekday waketimes (mean OV/OB+asthma = 6:40 am, mean OV/OB only = 6:51 am), and similar weekend waketimes (mean OV/OB+asthma = 7:54 pm, mean OV/OB only = 7:52 pm. Univariate MANOVA follow-ups indicated a main effect of asthma group for week-to-weekend bedtime and waketime variability, with the OV/OB+asthma group evidencing approximately 30 minutes greater bedtime (OV/OB+asthma mean = 90 minutes) and waketime (OV/OB+asthma mean = 108 minutes) variability. Within the OV/OB+asthma group, greater waketime variability predicted fewer minutes of weekday TIB and WASO. Within the OV/OB only group, wake time variability predicted fewer minutes of weekday TIB. CONCLUSION: Findings suggest that asthma status confers risk for more week-to-weekend variability among currently OV/OB youth, and that greater variability shortens the weekday sleep period. Further research on reasons for greater week-to-weekend sleep variability in asthma is needed.