Scalable Strategies to Increase Efficiency and Augment Public Health Activities During Epidemic Peaks.

OBJECTIVE: Scalable strategies to reduce the time burden and increase contact tracing efficiency are crucial during early waves and peaks of infectious transmission. DESIGN: We enrolled a cohort of SARS-CoV-2-positive seed cases into a peer recruitment study testing social network methodology and a novel electronic platform to increase contact tracing efficiency. SETTING: Index cases were recruited from an academic medical center and requested to recruit their local social contacts for enrollment and SARS-CoV-2 testing. PARTICIPANTS: A total of 509 adult participants enrolled over 19 months (384 seed cases and 125 social peers). INTERVENTION: Participants completed a survey and were then eligible to recruit their social contacts with unique "coupons" for enrollment. Peer participants were eligible for SARS-CoV-2 and respiratory pathogen screening. MAIN OUTCOME MEASURES: The main outcome measures were the percentage of tests administered through the study that identified new SARS-CoV-2 cases, the feasibility of deploying the platform and the peer recruitment strategy, the perceived acceptability of the platform and the peer recruitment strategy, and the scalability of both during pandemic peaks. RESULTS: After development and deployment, few human resources were needed to maintain the platform and enroll participants, regardless of peaks. Platform acceptability was high. Percent positivity tracked with other testing programs in the area. CONCLUSIONS: An electronic platform may be a suitable tool to augment public health contact tracing activities by allowing participants to select an online platform for contact tracing rather than sitting for an interview.

Targeted Strategies for Recruitment and Engagement of Latinx Immigrants in Longitudinal Biobehavioral Research.

Introduction: Racial/ethnic minority communities are underrepresented in research. Medical mistrust and mistreatment, discrimination, and a lack of diverse research workforce may influence recruitment and engagement. Engaging Latinx immigrants for research presents unique recruitment challenges, especially for biobehavioral research which is not well explored. The purpose of this paper is to examine the effect of targeted strategies for recruiting young adult, Latinx immigrants. Methods: Recruitment occurred from 2018 to 2019 in an ongoing, longitudinal, community-engaged research study examining risk and resilience factors for health outcomes in Latinx immigrants. Strategies included active recruitment (e.g., community-based events and public events) and passive recruitment (e.g., word-of-mouth and radio and flyer advertisements). Logistic regression analysis was conducted to examine the influence of type of recruitment on participant enrollment. Results: The study enrolled 391 participants of 701 interested individuals (55%). Greater odds of enrollment were among participants recruited through radio and flyer advertisements (adjusted odds ratio [AOR]=2.90, 95%CI [1.59, 5.27], p=.001), word-of-mouth (AOR=2.50, 95% CI [1.55, 4.03], p<.000), or community-based organization events (AOR=1.68, 95% CI [1.19, 2.38], p=.003). Conclusions: Passive recruitment strategies through trusted sources increased the odds of enrollment of Latinx immigrants in biobehavioral research. Future recruitment efforts should leverage trusted sources to disseminate recruitment materials addressing barriers to recruiting Latinx participants for research.

Obesity and cardio-metabolic risk factors among children and adolescents with cerebral palsy / Obesidad y factores de riesgo cardiometabólico en niños y adolescentes con parálisis cerebral

BACKGROUND: obesity and associated cardiometabolic complications are increasing among adults with cerebral palsy (CP). Information in children is scarce, and there is no consensus definition of obesity. OBJECTIVES: to describe the frequency of obesity and metabolic complications in children and adolescents with CP. METHODS: a descriptive, cross-sectional study performed in two outpatient pediatric special needs centers. Demographic, anthropometric (Brooks 2011), and motor function (GMFCS) data, as well as antiepileptic use, were recorded. Fasting triglycerides (TG), total cholesterol (TC), vitamin D (25OHD), glycemia (GLY), and insulinemia levels were measured. The HOMA index was calculated. RESULTS: sixty-five patients were enrolled. Age was 10.8 ± 4.9 years; 63.1 % were male; 81.6 % had GMFCS IV-V; 43.5 % had a gastrostomy; and 83.1 % were on antiepileptics. According to their BMI, 15.4 % were underweight (< 10th percentile) and 10.8 % overweight (> 75th percentile). Overall, 6.1 % had TC ≥ 200 mg/dL, 21.4 % had TG ≥ 110 or 130 mg/dL, 4.6 % had GLY ≥ 100 mg/dL, 16.9 % had HOMA ≥ 3, and 76.9 % had 25OHD < 30 ng/mL. Children with BMI ≥ 75th percentile had higher HOMA and insulin resistance rates than those with BMI < 75th percentile. Elevated TG were associated with high motor impairment and low vitamin D. HOMA was associated to female gender and BMI ≥ 75th percentile. CONCLUSIONS: the frequency of cardiometabolic risk factors was high in this sample of pediatric patients with CP, associated with overweight, low mobility, and vitamin D deficiency. We propose a BMI > 75th percentile as cutoff point for metabolic risk factors

INTRODUCCIÓN: la obesidad y sus complicaciones cardiometabólicas han aumentado en los adultos con parálisis cerebral (PC). La información en la población pediátrica es escasa y no hay consenso en la definición de obesidad. OBJETIVOS: describir la frecuencia de la obesidad y sus complicaciones metabólicas en niños y adolescentes con PC. MÉTODOS: estudio transversal descriptivo realizado en dos centros pediátricos ambulatorios de pacientes con necesidades especiales de atención en salud. Se registraron datos demográficos, antropométricos (curvas de Brooks 2011), función motora (GMFCS) y medicamentos. En muestras sanguíneas en ayunas se midieron: triglicéridos (TG), colesterol total (CT), vitamina D (25OHD), glucemia (GLI) e insulinemia. Se calculó el índice HOMA. RESULTADOS: participaron 65 pacientes con edades de 10,8 ± 4,9 años; el 63,1 % eran varones; el 81,6 % tenían GMFCS IV-V; el 43,5 % estaban gastrostomizados y el 83,1 % tomaban antiepilépticos. Según el IMC, el 15,4 % tenían bajo peso (< percentil 10) y el 10,8 % sobrepeso (≥ p75). Del grupo total, el 6,1 % tenían CT > 200 mg/dL, el 21,4 % TG > 110 o 130 mg/dL, el 4,6 % GLI ≥ 100 mg/dL, el 16,9 % HOMA > 3 y el 76,9 % 25OHD < 30 ng/mL. Los pacientes con IMC ≥ p75 tenían mayor frecuencia de HOMA >3 que aquellos con IMC < p75. La hipertrigliceridemia se asoció a mayor discapacidad motora y a baja vitamina D, y el HOMA al género femenino y a un IMC ≥ p75. CONCLUSIONES: la frecuencia de los factores de riesgo cardiometabólico fue alta en esta muestra de pacientes pediátricos con PC, asociada al género, el sobrepeso, la baja movilidad y la deficiencia de vitamina D. Proponemos un IMC ≥ p75, según las curvas específicas de PC, como punto de corte para el mayor riesgo cardiometabólico

Obesity and cardio-metabolic risk factors among children and adolescents with cerebral palsy.

INTRODUCTION: Background: obesity and associated cardiometabolic complications are increasing among adults with cerebral palsy (CP). Information in children is scarce, and there is no consensus definition of obesity. Objectives: to describe the frequency of obesity and metabolic complications in children and adolescents with CP. Methods: a descriptive, cross-sectional study performed in two outpatient pediatric special needs centers. Demographic, anthropometric (Brooks 2011), and motor function (GMFCS) data, as well as antiepileptic use, were recorded. Fasting triglycerides (TG), total cholesterol (TC), vitamin D (25OHD), glycemia (GLY), and insulinemia levels were measured. The HOMA index was calculated. Results: sixty-five patients were enrolled. Aage was 10.8 ± 4.9 years; 63.1 % were male; 81.6 % had GMFCS IV-V; 43.5 % had a gastrostomy; and 83.1 % were on antiepileptics. According to their BMI, 15.4 % were underweight (< 10th percentile) and 10.8 % overweight (> 75th percentile). Overall, 6.1 % had TC ≥ 200 mg/dL, 21.4 % had TG ≥ 110 or 130 mg/dL, 4.6 % had GLY ≥ 100 mg/dL, 16.9 % had HOMA ≥ 3, and 76.9 % had 25OHD < 30 ng/mL. Children with BMI ≥ 75th percentile had higher HOMA and insulin resistance rates than those with BMI < 75th percentile. Elevated TGs were associated with high motor impairment and low vitamin D. HOMA was associated to feminine gender and BMI ≥ 75th percentile. Conclusions: the frequency of cardiometabolic risk factors was high in this sample of pediatric patients with CP, associated with overweight, low mobility, and vitamin D deficiency. We propose a BMI > 75th percentile as cutoff point for metabolic risk factors.

INTRODUCCIÓN: Introducción: la obesidad y sus complicaciones cardiometabólicas han aumentado en los adultos con parálisis cerebral (PC). La información en la población pediátrica es escasa y no hay consenso en la definición de obesidad. Objetivos: describir la frecuencia de la obesidad y sus complicaciones metabólicas en niños y adolescentes con PC. Métodos: estudio transversal descriptivo realizado en dos centros pediátricos ambulatorios de pacientes con necesidades especiales de atención en salud. Se registraron datos demográficos, antropométricos (curvas de Brooks 2011), función motora (GMFCS) y medicamentos. En muestras sanguíneas en ayunas se midieron: triglicéridos (TG), colesterol total (CT), vitamina D (25OHD), glucemia (GLI) e insulinemia. Se calculó el índice HOMA. Resultados: participaron 65 pacientes con edades de 10,8 ± 4,9 años; el 63,1 % eran varones; el 81,6 % tenían GMFCS IV-V; el 43,5 % estaban gastrostomizados y el 83,1 % tomaban antiepilépticos. Según el IMC, el 15,4 % tenían bajo peso (< percentil 10) y el 10,8 % sobrepeso (≥ p75). Del grupo total, el 6,1 % tenían CT > 200 mg/dL, el 21,4 % TG > 110 o 130 mg/dL, el 4,6 % GLI ≥ 100 mg/dL, el 16,9 % HOMA > 3 y el 76,9 % 25OHD < 30 ng/mL. Los pacientes con IMC ≥ p75 tenían mayor frecuencia de HOMA >3 que aquellos con IMC < p75. La hipertrigliceridemia se asoció a mayor discapacidad motora y a baja vitamina D, y el HOMA al género femenino y a un IMC ≥ p75. Conclusiones: la frecuencia de los factores de riesgo cardiometabólico fue alta en esta muestra de pacientes pediátricos con PC, asociada al género, el sobrepeso, la baja movilidad y la deficiencia de vitamina D. Proponemos un IMC ≥ p75, según las curvas específicas de PC, como punto de corte para el mayor riesgo cardiometabólico.

Growth in Chilean infants with chromosome 22q11 microdeletion syndrome.

Chromosome 22q11 microdeletion syndrome has a wide range of clinical manifestations including congenital heart malformations, palatal defects, endocrine abnormalities, immunologic deficits, learning difficulties, and an increased predisposition to psychiatric disease. Short stature and poor weight gain in infancy are common findings and are usually seen in the absence of hormone deficiencies. An increased frequency of obesity has been observed in adolescents and adults. We generated gender-specific growth curves from 0 to 24 months of age, based on 479 length and 475 weight measurements from 138 Chilean patients with 22q11 deletion. Final adult height and weight on 25 individuals were analyzed. The 10th, 50th, and 90th centile-smoothed curves for infants were built using the LMS method and compared with World Health Organization Child Growth Standards. The 50th centile for length in the deleted patients was slightly lower than the 10th centile of WHO standards in boys and girls. The same was observed for weight, although a trend toward a gradual increase near 2 years of age was observed, particularly in boys. Average adult height was 152 cm (ranging from 143 to 162 cm) in females, corresponding to the 10th centiles of WHO standards, and 166 cm for males (160-172 cm), at the 20th centile of WHO standards. A third of the adult females and none of the males had body mass index (BMI) greater than 25. The curves should be useful to monitor growth in infants with 22q11 microdeletion syndrome.