Differences in testing for drugs of abuse amongst racial and ethnic groups at children's hospitals.

OBJECTIVES: Racial and ethnic differences in drug testing have been described among adults and newborns. Less is known regarding testing patterns among children and adolescents. We sought to describe the association between race and ethnicity and drug testing at US children's hospitals. We hypothesized that non-Hispanic White children undergo drug testing less often than children from other groups. METHODS: We conducted a retrospective cohort study of emergency department (ED)-only encounters and hospitalizations for children diagnosed with a condition for which drug testing may be indicated (abuse or neglect, burns, malnutrition, head injury, vomiting, altered mental status or syncope, psychiatric, self-harm, and seizure) at 41 children's hospitals participating in the Pediatric Health Information System during 2018 and 2021. We compared drug testing rates among (non-Hispanic) Asian, (non-Hispanic) Black, Hispanic, and (non-Hispanic) White children overall, by condition and patient cohort (ED-only vs. hospitalized) and across hospitals. RESULTS: Among 920,755 encounters, 13.6% underwent drug testing. Black children were tested at significantly higher rates overall (adjusted odds ratio [aOR]: 1.18; 1.05-1.33) than White children. Black-White testing differences were observed in the hospitalized cohort (aOR: 1.42; 1.18-1.69) but not among ED-only encounters (aOR: 1.07; 0.92-1.26). Asian, Hispanic, and White children underwent testing at similar rates. Testing varied by diagnosis and across hospitals. CONCLUSIONS: Hospitalized Black children were more likely than White children to undergo drug testing at US children's hospitals, though this varied by diagnosis and hospital. Our results support efforts to better understand and address healthcare disparities, including the contributions of implicit bias and structural racism.

Characteristics and Outcomes of Children Discharged With Nasoenteral Feeding Tubes.

OBJECTIVES: To describe the characteristics and outcomes of children discharged from the hospital with new nasoenteral tube (NET) use after acute hospitalization. METHODS: Retrospective cohort study using multistate Medicaid data of children <18 years old with a claim for tube feeding supplies within 30 days after discharge from a nonbirth hospitalization between 2016 and 2019. Children with a gastrostomy tube (GT) or requiring home NET use in the 90 days before admission were excluded. Outcomes included patient characteristics and associated diagnoses, 30-day emergency department (ED-only) return visits and readmissions, and subsequent GT placement. RESULTS: We identified 1815 index hospitalizations; 77.8% were patients ≤5 years of age and 81.7% had a complex chronic condition. The most common primary diagnoses associated with index hospitalization were failure to thrive (11%), malnutrition (6.8%), and acute bronchiolitis (5.9%). Thirty-day revisits were common (49%), with 26.4% experiencing an ED-only return and 30.9% hospital readmission. Revisits with a primary diagnosis code for tube displacement/dysfunction (10.7%) or pneumonia/pneumonitis (0.3%) occurred less frequently. A minority (16.9%) of patients progressed to GT placement within 6 months, 22.3% by 1 year. CONCLUSIONS: Children with a variety of acute and chronic conditions are discharged from the hospital with NET feeding. All-cause 30-day revisits are common, though revisits coded for specific tube-related complications occurred less frequently. A majority of patients do not progress to GT within a year. Home NET feeding may be useful for facilitating discharge among patients unable to meet their oral nutrition goals but should be weighed against the high revisit rate.

A Quality Improvement Approach to Enhance LGBTQ+ Inclusivity in Pediatric Primary Care.

BACKGROUND: Lesbian, gay, bisexual, transgender, and queer (LGBTQ+) teens are at higher risk of illness as a result of bias but are less likely than peers to attend well visits. Medical organizations recommend improving care through staff education, visual cues, and routine inquiry of sexual orientation and gender identity (SO/GI) and pronouns. It is unknown how to do this confidentially in pediatrics. This quality improvement (QI) project aimed to confidentially collect and document SO/GI and pronouns early in at least 90% of teen acute care visits. METHODS: A diverse, representative QI team in a resident primary care clinic conducted a series of staff and clinician trainings to improve knowledge, then displayed welcoming signage and offered staff pronoun and rainbow pins. Multiple Plan-Do-Study-Act cycles developed methods of routine and private collection of SO/GI and pronouns. Outcome measures included proportion of teen acute visits with such documentation collected via weekly chart reviews. Process measures included staff/clinician preparedness, assessed by surveys. RESULTS: SO/GI and pronouns were documented in 0% of teen acute visits at baseline, 70% after 6 months, and 90% during the 20-week sustainment measurement phase. The proportion of staff and clinicians who felt prepared to provide care for LGB and transgender patients increased (53% to 68% for LGB, P = .07; and 30% to 57% for transgender, P = .002). CONCLUSIONS: QI methods can create protocols for confidential, sustainable SO/GI and pronoun collection from teens early in acute visits. This allows clinicians and staff to address patients appropriately and for clinicians to better meet their needs.

Helping Babies Survive Training Programs: Evaluating a Teaching Cascade in Ethiopia.

BACKGROUND: 2.6 million neonates die annually; the vast majority of deaths occur in low- and middle-income countries (LMICs). The Helping Babies Survive (HBS) programs are commonly used in LMICs to reduce neonatal mortality through education. They are typically disseminated using a train-the-trainer cascade. However, there is little published literature on the extent and cost of dissemination. In 2015, the Ethiopian Ministry of Health and partner organizations implemented a countrywide HBS training cascade for midwives in 169 hospitals. METHODS: We quantified the extent of HBS dissemination, and characterized barriers that impeded successful hospital-based training by surveying a representative from each of the 169 participant hospitals. This occurred from September 2017 to April 2018. We also assessed the cost of the training cascade. To assess acquisition of knowledge and skill in the training cascade, multiple-choice question examinations (MCQE) and objective structured clinical evaluations (OSCE) were conducted. RESULTS: Hospital-based training occurred in 132 participant hospitals (78%). 1,146 midwives, 69% of those employed by participant hospitals, received hospital-based training. Barriers included lack of preparation of hospital-based educators and limited logistical support. The cascade cost an average of 2,105 USD per facility or 197 USD per trainee. Knowledge improved and skills were adequate for regional workshop attendees based on MCQE and OSCE performance. CONCLUSION: The train-the-trainer strategy is an effective and affordable strategy for widespread dissemination of the HBS programs in LMICs. Future studies should assess knowledge and skill acquisition following the variety of pragmatic training approaches that may be employed at the facility-level.

Discharge Medical Complexity, Change in Medical Complexity and Pediatric 30-day Readmission.

BACKGROUND: While medical complexity is associated with pediatric readmission risk, less is known about how increases in medical complexity during hospitalization affect readmission risk. METHODS: We conducted a five-year retrospective, case-control study of pediatric hospitalizations at a tertiary care children's hospital. Cases with a 30-day unplanned readmission were matched to controls based on admission seasonality and distance from the hospital. Complexity variables included the number of medications prescribed at discharge, medical technology, and the need for home healthcare services. Change in medical complexity variables included new complex chronic conditions and new medical technology. We estimated odds of 30-day unplanned readmission using adjusted conditional logistic regression. RESULTS: Of 41,422 eligible index hospitalizations, we included 595 case and 595 control hospitalizations. Complexity: Polypharmacy after discharge was common. In adjusted analyses, being discharged with ≥2 medications was associated with higher odds of readmission compared with being discharged without medication; children with ≥5 discharge medications had a greater than four-fold higher odds of readmission. Children assisted by technology had higher odds of readmission compared with children without technology assistance. Change in complexity: New diagnosis of a complex chronic condition (Adjusted Odds Ratio (AOR) = 1.75; 1.11-2.75) and new technology (AOR = 1.84; 1.09-3.10) were associated with higher risk of readmission when adjusting for patient characteristics. However, these associations were not statistically significant when adjusting for length of stay. CONCLUSION: Polypharmacy and use of technology at discharge pose a substantial readmission risk for children. However, added technology and new complex chronic conditions do not increase risk when accounting for length of stay.

Essay: Half a Century of the Standard Model*,†.

The standard model is a quantum field theory that successfully accounts for the strong, weak, and electromagnetic interactions of the known elementary particles. In this essay I reminisce about the forerunners of the standard model, the beginnings of the model half a century ago, and its development and confirmation from then to the present.

A Validated Method for Identifying Unplanned Pediatric Readmission.

OBJECTIVE: To validate the accuracy of pre-encounter hospital designation as a novel way to identify unplanned pediatric readmissions and describe the most common diagnoses for unplanned readmissions among children. STUDY DESIGN: We examined all hospital discharges from 2 tertiary care children's hospitals excluding deaths, normal newborn discharges, transfers to other institutions, and discharges to hospice. We performed blinded medical record review on 641 randomly selected readmissions to validate the pre-encounter planned/unplanned hospital designation. We identified the most common discharge diagnoses associated with subsequent 30-day unplanned readmissions. RESULTS: Among 166,994 discharges (hospital A: n = 55,383; hospital B: n = 111,611), the 30-day unplanned readmission rate was 10.3% (hospital A) and 8.7% (hospital B). The hospital designation of "unplanned" was correct in 98% (hospital A) and 96% (hospital B) of readmissions; the designation of "planned" was correct in 86% (hospital A) and 85% (hospital B) of readmissions. The most common discharge diagnoses for which unplanned 30-day readmissions occurred were oncologic conditions (up to 38%) and nonhypertensive congestive heart failure (about 25%), across both institutions. CONCLUSIONS: Unplanned readmission rates for pediatrics, using a validated, accurate, pre-encounter designation of "unplanned," are higher than previously estimated. For some pediatric conditions, unplanned readmission rates are as high as readmission rates reported for adult conditions. Anticipating unplanned readmissions for high-frequency diagnostic groups may help focus efforts to reduce the burden of readmission for families and facilities. Using timing of hospital registration in administrative records is an accurate, widely available, real-time way to distinguish unplanned vs planned pediatric readmissions.

A Medical Student-Driven "Vaccine Blitz" at a School-Based Health Center as an Effective Way to Improve Adolescent Vaccination Rates.

BACKGROUND AND OBJECTIVES: Adolescent vaccine rates are below goal in the United States. We sought to assess a medical student driven "vaccine blitz" at a middle school with a school-based health center (SBHC) as a means to increase vaccination. METHODS: Written and/or verbal consent was obtained for specific vaccines needed. Vaccines were given at the SBHC by a team of medical students, public health students, and SBHC staff. Students who received vaccines at the SBHC or primary care physician's (PCP's) office in the 3 weeks after consent was attempted were included as participating in the intervention. RESULTS: Of 184 potential participants, 183 lacked at least one vaccine. On the day of the vaccine blitz, 48 students were given 94 vaccines. During the entire intervention time, an additional 14 students received 38 vaccines at the SBHC, and 23 students received 34 vaccines from their PCP. In sum, 85 students received 166 vaccines from this intervention. Immunization rates increased above the state average for all recommended vaccines; rates of HPV, hepatitis A, and influenza vaccination were most affected. CONCLUSIONS: Medical student-driven vaccine blitzes within an SBHC are a feasible, replicable, and effective way to increase adolescent vaccination rates. In addition, the blitz provided preclinical medical students' exposure to underserved populations, adolescent health as part of the breadth of family medicine, SBHCs, and community medicine and allowed for multidisciplinary work between medical students, public health students, physicians, and nurse practitioners.

Tetraquark mesons in large-N quantum chromodynamics.

It is argued that exotic mesons consisting of two quarks and two antiquarks are not ruled out in quantum chromodynamics with a large number N of colors, as generally thought. Tetraquarks of one class are typically long-lived, with decay rates proportional to 1/N.

Goldstone bosons as fractional cosmic neutrinos.

It is suggested that Goldstone bosons may be masquerading as fractional cosmic neutrinos, contributing about 0.39 to what is reported as the effective number of neutrino types in the era before recombination. The broken symmetry associated with these Goldstone bosons is further speculated to be the conservation of the particles of dark matter.

Size of clinical trials and Introductory prices of prophylactic vaccine series.

Costs of completing the recommended immunization schedule have increased over the last decade. Access to prophylactic vaccines may become limited due to financing obstacles within current delivery systems. Vaccine prices reflect research and development expenses incurred by vaccine manufacturers, including costs associated with evaluating candidate vaccines in human subjects. If the number of subjects in clinical trials is increasing over time and associated with vaccine price, this may help explain increases in prices of vaccine series. We examined whether: (A) the initial public- and private-sector prices for recommended prophylactic vaccine series licensed and recommended in the US increased from 2000-2011, (B) the number of human subjects per licensed vaccine increased during the time period, and (C) the number of human subjects was associated with the initial public-and private-sector prices of the vaccine series. In regression analyses of 13 vaccines, approval year was not significantly associated with the number of human subjects, initial public-sector prices, or initial private-sector prices. While the number of phase II subjects was not significantly associated with prices, the numbers of phase III and combined late phase (phases II + III) subjects were significantly associated with initial public- and private-sector series prices (p < 0.05). The association between number of subjects and initial prices demonstrated diminishing marginal increases in price with increasing numbers of subjects. These findings may help guide the number of subjects required by the FDA in clinical trials, in order to reduce expenses for manufacturers and thereby help mitigate increases in initial vaccine series prices.

Pions in large N quantum chromodynamics.

An effective field theory of quarks, gluons, and pions, with the number N of colors treated as large, is proposed as a basis for calculations of hadronic phenomena at moderate energies. The qualitative consequences of the large N limit are similar though not identical to those in pure quantum chromodynamics, but because constituent quark masses appear in the effective Lagrangian, the 't Hooft coupling in the effective theory need not be strong at moderate energies. To leading order in 1/N the effective theory is renormalizable, with only a finite number of terms in the Lagrangian.

Preclinical testing for aortic endovascular grafts: results of a Food and Drug Administration workshop.

BACKGROUND: Since their introduction into clinical trials in the United States, endovascular aortic grafts have shown various types of problems. Although details of design and construction vary between different endovascular grafts and failure modes have had a variety of causes and clinical effects, the inability of preclinical testing to predict these failures remains common to all endovascular grafts. The need to improve preclinical testing in an attempt to reduce clinical device failures resulted in a Food and Drug Administration-sponsored workshop on endovascular graft preclinical testing held in Rockville, Md, from July 31 to August 1, 2001. FORMAT: The workshop was not designed as a consensus conference. Instead, it provided a forum for bringing stakeholders together to define problems and identify areas of agreement and disagreement. The workshop had 34 invited participants who represented device manufacturers, the medical community, the Food and Drug Administration, and testing facilities, and international attendance was more than 120 people. OUTCOME: Discussion centered on: 1, defining the physiologic, anatomic, and morphologic characteristics of abdominal aortic aneurysms before and after endovascular graft treatment; 2, identifying the types of failures that have been observed clinically; and 3, determining which characteristics should be considered during preclinical modeling to better predict clinical performance. Attendees agreed to the need to better define and address anatomic characteristics and changes in the aneurysm after endograft treatment to optimize preclinical testing. Much discussion and little agreement occurred on the importance of flow-related forces on graft performance or the need or ability to define and model physiologic compliance during durability testing. The discussion and conclusions are summarized in this paper and are provided in detail at: http://www.fda.gov/cdrh/meetings/073101workshop.html. CONCLUSION: The workshop raised awareness of significant performance issues and the challenges of modeling the extremely variable and relatively undefined environment of abdominal aortic aneurysms. Through the interactive format of the workshop, participants identified areas of preclinical testing, device design, and aspects of the simulated environment that need further consideration.