Geographic and Racial Disparities in Infant Hearing Loss

Socioeconomic status and pediatric cochlear implant usage during COVID-19

OBJECTIVE

COVID-19 (COVID) delayed access to speech and hearing services. The objective of this study was to identify interactions between socioeconomic status (SES) and cochlear implant (CI) usage during COVID.

METHODS

Consecutive pediatric patients (age 0-17) with CI and audiology visits between 2019 and 2022 at a tertiary care children's hospital were reviewed. Age, sex, race, insurance type, and proxy measures for SES using zip code were recorded. Hours spent with CI on and in different listening environments were compared between pre-COVID (1/1/2019-12/31/2019), COVID (4/1/2020-3/31/2021), and most recent (6/1/2021-5/31/2022) time periods.

RESULTS

Most patients were male (32/59, 54 % ears of 48 patients) and White, non-Hispanic (45/59, 76 %). Median age at implant was 2.0 years (range:0.6-12.2). There were no significant differences in hours spent with CI on during COVID compared with pre-COVID. However, children spent more time listening to louder noises (70-79 dB and ≥80 dB) recently compared with during COVID (p = 0.01 and 0.006, respectively). During COVID, children living in areas with greater educational attainment showed smaller reductions in total hours with CI on (β = 0.1, p = 0.02) and hours listening to speech in noise (β = 0.03, p = 0.005) compared with pre-COVID. In the most recent time period, children of minority race (β = -3.94 p = 0.008) and those who were older at implant (β = -0.630, p = 0.02) were more likely to experience reductions in total hours with CI on compared with during COVID.

CONCLUSION

Interventions which mitigate barriers of implant use and promote rich listening home-environments for at risk populations should be implemented during challenging future social and environmental conditions.

Socioeconomic Status and Cochlear Implant Usage: A Datalogging Study

OBJECTIVE

To evaluate the associations between proxy measures of socioeconomic status (SES) and usage of cochlear implants.

STUDY DESIGN

Retrospective case series.

METHODS

Usage outcomes were measured among patients with a cochlear implant and data logging at a tertiary care children's hospital between 2002 and 2017. Time per day with cochlear implant turned on, coil off, and listening to speech in noise and speech in quiet were extracted from audiology records, averaging right and left ear usage for those with bilateral implants. Associations between cochlear implant usage and demographic factors such as insurance type and median household income for zip code were assessed.

RESULTS

There were 142 total patients; 74 had bilateral usage data. Mean on air time was 10.76 hours (SD: 4.4). Those with private insurance had 1.2 hour more on air time/day (P = .047) and 0.9 hour more quiet time/day (P = .011) compared to those with public insurance. Younger age at last visit was associated with increased speech in quiet (B = -.08; 95% CI: -0.12-[-0.05], P < .001) and coil off (B = -0.06; 95% CI: -0.11-[-0.02], P = .006). Younger age at implant was associated with longer duration since last data logging visit (B = -10.46; 95% CI: -18.41-[-2.51], P = .010), more daily use (on air; B = -0.23; 95% CI: -0.43-[-0.03], P = .026), and increased time spent listening to speech in noise (B = -0.07; 95% CI: -0.14-[-0.01], P = .024). No other significant associations between datalogging output and each proxy SES factor were found.

CONCLUSIONS

Lack of private insurance and older age at implantation decreased access to binaural hearing for children and young adults with cochlear implants.

Re-Evaluating Human Cytomegalovirus Vaccine Design: Prediction of T Cell Epitopes

HCMV vaccine development has traditionally focused on viral antigens identified as key targets of neutralizing antibody (NAb) and/or T cell responses in healthy adults with chronic HCMV infection, such as glycoprotein B (gB), the glycoprotein H-anchored pentamer complex (PC), and the unique long 83 (UL83)-encoded phosphoprotein 65 (pp65). However, the protracted absence of a licensed HCMV vaccine that reduces the risk of infection in pregnancy regardless of serostatus warrants a systematic reassessment of assumptions informing vaccine design. To illustrate this imperative, we considered the hypothesis that HCMV proteins infrequently detected as targets of T cell responses may contain important vaccine antigens. Using an extant dataset from a T cell profiling study, we tested whether HCMV proteins recognized by only a small minority of participants encompass any T cell epitopes. Our analyses demonstrate a prominent skewing of T cell responses away from most viral proteins-although they contain robust predicted CD8 T cell epitopes-in favor of a more restricted set of proteins. Our findings raise the possibility that HCMV may benefit from evading the T cell recognition of certain key proteins and that, contrary to current vaccine design approaches, including them as vaccine antigens could effectively take advantage of this vulnerability.

Effects of Maternal SARS-CoV-2 Infection on Neonatal Discharge Planning and Care: Exacerbation of Racial and Ethnic Healthcare Disparities

OBJECTIVES

To determine if SARS-CoV-2 disproportionately impacted infants born to racial and ethnic minorities and if virus exposure led to decreased access to care.

METHODS

This study was an observational case-control study, between March 2020 and March 2022 in Portland, Maine. Forty-seven cases and 47 controls were enrolled. Cases were infants born to mothers diagnosed with SARS-CoV-2 at delivery, and controls were infants matched by date of birth, born to SARS-CoV-2 negative women. Demographic data, maternal clinical data, infant outcomes, and infant discharge plans were compared using Chi squared or Fisher Exact tests. Logistic regression was used to examine the impact of race on neonatal SARS-CoV-2 exposure.

RESULTS

Infants exposed to SARS-CoV-2 were more likely Black or Hispanic than White and Non-Hispanic early in the pandemic, with reversal during the second year. SARS-CoV-2-exposed infants experienced delays in routine newborn outpatient care, although delay improved over the pandemic.

CONCLUSION

Infants exposed to SARS-CoV-2 were initially more likely to be infants of color. During this time, infants exposed to SARS-CoV-2 were also experiencing significant delays in newborn care.

Attention-deficit/hyperactivity disorder in children with hearing loss

OBJECTIVE

To evaluate rates of Attention-Deficit/Hyperactivity Disorder (AD/HD) diagnosis among pediatric patients with normal hearing (NH) and hearing loss (HL) with and without comorbidities.

STUDY DESIGN

Retrospective cohort study of NH and HL patients following chart review of all pediatric patients with a history of tympanostomy tube placement treated at the Cleveland Clinic Foundation between 2019 and 2022.

METHODS

Patient demographic information, hearing status (type of HL, laterality, severity), and comorbidities including prematurity, genetic syndromes, disorders with neurological impairment, and autism spectrum disorder (ASD) were collected. Rate of AD/HD amongst HL and NH cohorts with and without comorbidities were compared using Fisher's exact test. Covariate-adjusted analysis was also completed (sex, current age, age at tube placement, and OSA). The primary outcome of interest was rates of AD/HD among children with NH and HL, and the secondary outcome of interest was the impact of comorbidities on rates of AD/HD diagnosis in these cohorts.

RESULTS

Of the 919 screened patients between 2019 and 2022, there were 778 NH patients and 141 HL patients (80 bilateral, 61 unilateral). HL ranged from mild (n = 110) to moderate (n = 21) to severe/profound (n = 9). Overall, the rate of AD/HD was significantly higher in HL children (12.1% HL vs 3.6% NH, p < 0.001). Of the 919 patients, 157 had comorbidities. In children without comorbidities, HL children still had significantly higher rates of AD/HD compared to NH children (8.0% vs 1.9%, p = 0.02), but there was loss of significance after covariate adjustment (p = 0.72).

CONCLUSION

The rate of AD/HD among children with HL (12.1%) is higher than the rate of AD/HD in NH children (3.6%), consistent with previous findings. After excluding patients with comorbidities and adjusting for covariates, there are similar rates of AD/HD between HL and NH patients. Given high rates of comorbidities and AD/HD in HL patients and potential for augmented developmental challenges, clinicians should have a low threshold to refer children with HL for neurocognitive testing, particularly those with any of the comorbidities or covariates described in this study.

The Effect of Social Deprivation on Fracture-Healing and Patient-Reported Outcomes Following Intramedullary Nailing of Tibial Shaft Fractures

BACKGROUND

Social deprivation is a state marked by limited access to resources due to poverty, discrimination, or other marginalizing factors. We investigated the links between social deprivation and orthopaedic trauma, including patient-reported outcomes, radiographic healing, and complication rates following intramedullary nailing of tibial shaft fractures.

METHODS

We retrospectively reviewed 229 patients who underwent intramedullary nailing of tibial shaft fractures at our Level-I trauma center. The Area Deprivation Index (ADI), a validated proxy for social deprivation, was used to group patients into the most deprived tercile (MDT), the intermediate deprived tercile (IDT), and the least deprived tercile (LDT) for outcome comparison. The Patient-Reported Outcomes Measurement Information System (PROMIS) was used to measure the domains of Physical Function (PF), Pain Interference (PI), Anxiety, and Depression, and radiographic healing was assessed with the Radiographic Union Scale in Tibial fractures (RUST) system.

RESULTS

On univariate analyses, patients from the MDT reported worse PF, PI, Anxiety, and Depression scores than those from the LDT within the first year of postoperative follow-up. On multivariable regression analysis, PROMIS score outcomes were influenced by age, race, and smoking status, but not by social deprivation tercile. Furthermore, residing in the MDT was associated with a 31% increase in time to radiographic union compared with the LDT (β = 0.27; p = 0.01).

CONCLUSIONS

Following intramedullary nailing of tibial shaft fractures, social deprivation is associated with slower fracture-healing and potentially influences short-term PROMIS scores. These results warrant further investigation in additional patient populations with orthopaedic trauma and highlight the importance of developing interventions to reduce inequities faced by patients from low-resource settings.

LEVEL OF EVIDENCE

Prognostic Level III . See Instructions for Authors for a complete description of levels of evidence.

Foundational Approaches to Advancing Hearing Health Equity: A Primer in Social Epidemiology

Hearing health is inextricably linked to factors beyond biology. Social, demographic, environmental, geographic, and historical influences affect hearing health, but these factors are often unmeasured within traditional biological, clinical, and epidemiological studies of hearing health. With increasing recognition of hearing health over the life course as a public health priority, there is also a growing understanding of existing hearing health inequities at the individual, community, national, and global levels. To make progress in addressing these inequities, public health disciplines, such as social epidemiology, can provide valuable frameworks. With a focus on integrating the biological and functional with social and structural factors influencing health, social epidemiology provides key concepts and approaches for filling existing research and practice gaps. In this review, we introduce the discipline of social epidemiology and its associated concepts to inspire greater cross-disciplinary collaboration for the ultimate goal of advancing hearing health equity.

Outcomes of an Early Childhood Hearing Screening Program in a Low-Income Setting

IMPORTANCE

Early identification of childhood hearing loss through newborn hearing screening mitigates permanent speech, language, and developmental delays, but many children are lost to follow-up or develop postnatal hearing loss. Early childhood hearing screening programs may help identify these children, but evidence on their outcomes is limited.

OBJECTIVE

To assess outcomes from a low-income, preschool-based hearing screening program and risk factors for hearing loss in this population.

DESIGN, SETTING, AND PARTICIPANTS

A retrospective cohort study of 6820 children aged 2 to 6 years from urban, low-income public preschools who received hearing screening from July 1, 2015, to June 30, 2019, was performed using San Francisco Department of Public Health records. A multivariate logistic regression analyzed risk factors for hearing loss. Data analysis was conducted from January 14, 2020, to April 20, 2021.

EXPOSURES

Annual single-visit, 2-tiered screening was implemented with conditioned play pure-tone audiometry (CPA) and distortion product otoacoustic emissions (OAEs).

MAIN OUTCOMES AND MEASURES

Rates of successful screening, referred screening, loss to follow-up, and hearing loss.

RESULTS

Of 6820 children (age, 2-6 years) screened, 3425 (50.2%) were boys, 15% were White/non-Hispanic, and 48% had English as the primary home language. A total of 403 (5.9%) children were referred for full medical or audiologic evaluation after 2-tiered CPA/OAE screening. Only 24 children were unable to complete both CPA and OAE testing for a screening completion rate of 99.6%. After medical evaluation, 114 of 403 children (28.3%) passed hearing rescreening and 55 (13.6%) were lost to follow-up. The prevalence of conductive hearing loss was 2.9% (n = 195), and the prevalence of sensorineural hearing loss was 0.2% (n = 13). Primary language, race and ethnicity, and sex were not associated with rates of referral or hearing loss.

CONCLUSIONS AND RELEVANCE

The findings of this cohort study suggest that preschool-based screening programs can be a useful method to identify early childhood hearing loss and that teacher concerns are associated with final diagnostic hearing status.

Receipt and Timeliness of Newborn Hearing Screening and Diagnostic Services Among Babies Born in 2017 in 9 States

CONTEXT

By providing timely services at all steps along the continuum of the early hearing detection and intervention (EHDI) process, providers may be able to lessen potential adverse effects of late identification of hearing loss on children's language development.

OBJECTIVE

To examine the timeliness of key events in the EHDI process from birth through diagnosis of hearing loss among different populations.

DESIGN

Retrospective, cross-sectional.

SETTING

Data pooled from 9 states' EHDI information systems were used to determine the extent to which timely screening and diagnosis were achieved by 754 613 infants born in calendar year 2017. Enrollment into early intervention for children diagnosed is not examined here due to incomplete data.

PARTICIPANTS

Nine state EHDI programs were selected to participate in this study for their successful experience in using EHDI-IS to collect detailed child-level data.

MAIN OUTCOME MEASURES

Age of service, rate of service receipt.

RESULTS

Median age of newborn hearing screening was 1 day, and median age of hearing loss diagnosis was 68 days. Early completion of newborn hearing screening was associated with maternal education, maternal race/ethnicity, and admission into a neonatal intensive care unit (NICU). Receiving and completing follow-up diagnostic services were associated with maternal education, maternal race/ethnicity, age of screening, and enrollment into the Women, Infants, and Children program.

CONCLUSIONS

Timely completion of the newborn hearing screening is achieved by most of the population among the participating states. Increased efforts may be considered by state EHDI programs to provide additional follow-up and education to underrepresented racial/ethnic groups, mothers with less education, and NICU infants and their families as these groups appear to be at an increased risk for delayed diagnostic testing for hearing loss.

Expanding the Role of Educational Audiologists After a Failed Newborn Hearing Screening: A Quality Improvement Study

Purpose Lack of timely and proximal access to diagnostic hearing evaluation using auditory brainstem response (ABR) testing hampers the effectiveness of Early Hearing Detection and Intervention (EHDI) programs in the United States. This study measured the impact of a state-based quality-improvement (QI) project that provided diagnostic ABR equipment and training to educational audiologists distributed throughout Iowa in regional special education centers. Method We used de-identified administrative data generated by the state EHDI program to analyze markers of access to early hearing health care for infants in a preproject condition ("Baseline") compared to the implementation of diagnostic ABRs at the regional special education centers ("QI Project"). Results Our findings revealed that the QI Project was associated with improvements in timeliness of first hearing evaluation, distance traveled for first hearing evaluation, and likelihood of receiving on-guideline audiology care during the first hearing evaluation. Conclusions Following the onset of the QI Project, infants and their families had greater access to initial hearing evaluation after failed newborn hearing screening. This improvement could have cascading effects on timeliness of later intervention among those with confirmed permanent childhood hearing loss.

Congenital Cytomegalovirus Infection Burden and Epidemiologic Risk Factors in Countries With Universal Screening: A Systematic Review and Meta-analysis

IMPORTANCE

Congenital cytomegalovirus (cCMV) infection is the most common congenital infection and the leading acquired cause of developmental disabilities and sensorineural deafness, yet a reliable assessment of the infection burden is lacking.

OBJECTIVES

To estimate the birth prevalence of cCMV in low- and middle-income countries (LMICs) and high-income countries (HICs), characterize the rate by screening methods, and delineate associated risk factors of the infection.

DATA SOURCES

MEDLINE/PubMed, Scopus, and Cochrane Database of Systematic Reviews databases were searched from January 1, 1960, to March 1, 2021, and a total of 1322 studies were identified.

STUDY SELECTION

Studies that provided data on the prevalence of cCMV derived from universal screening of infants younger than 3 weeks were included. Targeted screening studies were excluded.

DATA EXTRACTION AND SYNTHESIS

Preferred Reporting Items for Systematic Reviews and Meta-analyses guideline was followed. Extraction was performed independently by 3 reviewers. Quality was assessed using the Newcastle-Ottawa Scale for cohort studies. Random-effects meta-analysis was undertaken. Metaregression was conducted to evaluate the association of sociodemographic characteristics, maternal seroprevalence, population-level HIV prevalence, and screening methods with the prevalence of cCMV.

MAIN OUTCOMES AND MEASURES

Birth prevalence of cCMV ascertained through universal screening of infants younger than 3 weeks for CMV from urine, saliva, or blood samples.

RESULTS

Seventy-seven studies comprising 515 646 infants met the inclusion criteria from countries representative of each World Bank income level. The estimated pooled overall prevalence of cCMV was 0.67% (95% CI, 0.54%-0.83%). The pooled birth prevalence of cCMV was 3-fold greater in LMICs (1.42%; 95% CI, 0.97%-2.08%; n = 23 studies) than in HICs (0.48%; 95% CI, 0.40%-0.59%, n = 54 studies). Screening methods with blood samples demonstrated lower rates of cCMV than urine or saliva samples (odds ratio [OR], 0.38; 95% CI, 0.23-0.66). Higher maternal CMV seroprevalence (OR, 1.19; 95% CI, 1.11-1.28), higher population-level HIV prevalence (OR, 1.22; 95% CI, 1.05-1.40), lower socioeconomic status (OR, 3.03; 95% CI, 2.05-4.47), and younger mean maternal age (OR, 0.85; 95% CI, 0.78-0.92, older age was associated with lower rates) were associated with higher rates of cCMV.

CONCLUSIONS AND RELEVANCE

In this meta-analysis, LMICs appeared to incur the most significant infection burden. Lower rates of cCMV were reported by studies using only blood or serum as a screening method.

Barriers to Receiving Necessary Hearing Care Among US Children

OBJECTIVE

We aim to clarify the national scope of unmet pediatric hearing care needs and identify specific barriers to hearing care.

STUDY DESIGN

Cross-sectional study of a nationally representative data set.

SETTING

This study is based on the combined 2016 and 2017 National Survey of Children's Health. This survey covers the physical and emotional health, access to care, and social context of US children and adolescents aged 0 to 17 years.

METHODS

Analysis of parent-reported responses of children's hearing status, access to care, and perceived barriers.

RESULTS

Overall, 0.3% (n = 206,200) of US children surveyed reported needing hearing care, which was not received. A further 1.3% (n = 934,000) reported deafness or problems with hearing, and of these, 6.4% (n = 60,000) reported not receiving necessary hearing care. Rates of insurance coverage between children with deafness/hearing problems and the general population were similar (91.7% vs 93.9%); however, deaf or hard-of-hearing children with unmet hearing care needs were more likely to be from non-White backgrounds (P = .009) and to lack health insurance coverage (P = .001). Rates of unfulfilled hearing care by reason were as follows: 57.5% without eligibility for the service, 45.4% reporting the service was not available in their area, 53.7% with difficulty obtaining an appointment, and 53.5% reporting issues with cost.

CONCLUSION

Over 200,000 children annually do not receive necessary hearing-related care despite high rates of insurance coverage, and nearly 60,000 of these children are deaf or hard of hearing. Cost, eligibility for and distribution of services, and timely appointments are the primary barriers to hearing health care.

Evaluating the impact of social deprivation on Press Ganey® Outpatient Medical Practice Survey Scores

Background

Social deprivation has been shown to affect access to health care services, and influences outcomes for a variety of physical and psychological conditions. However, the impact on patient satisfaction remains less clear. The objective of this study was to determine if social deprivation is an independent predictor of patient satisfaction, as measured by the Press Ganey® Outpatient Medical Practice Survey (PGOMPS).

Methods

We retrospectively reviewed unique new adult patient (≥ 18 years of age) seen at a tertiary academic hospital and rural/urban outreach hospitals/clinics between January 2014 and December 2017. Satisfaction was defined a priori as achieving a score above the 33rd percentile. The 2015 Area Deprivation Index (ADI) was used to determine social deprivation (lower score signifies less social deprivation). Univariate and multivariable binary logistic regression were used to determine the impact of ADI on PGOMPS total and provider sub-scores while controlling for variables previously shown to impact scores (wait time, patient age, sex, race, specialty type, provider type, and insurance status).

Results

Univariate analysis of PGOMPS total scores revealed a 4% decrease in odds of patient satisfaction per decile increase in ADI (p < 0.001). Patients within the most deprived quartile were significantly less likely to report satisfaction compared to the least deprived quartile (OR 0.79, p < 0.001). Multivariable analysis revealed that the odds of achieving satisfaction decreased 2% for each decile increase in ADI on the Total Score (p < 0.001), independent of other variables previously shown to impact scores. For PGOMPS Provider Sub-Score, univariate analysis showed that patients in the lowest ADI quartile were significantly less likely be satisfied, as compared to the least deprived quartile (OR 0.77; 95% CI 0.70–0.86; p < 0.001). A 5% decrease in a patient being satisfied was observed for each decile increase in ADI (OR 0.95; 95% CI 0.94–0.96; p < 0.001).

Conclusions

Social deprivation was an independent predictor of outpatient visit dissatisfaction, as measured by the Press Ganey® Outpatient Medical Practice Survey. These results necessitate consideration when developing health care delivery policies that serve to minimize inequalities between patients of differing socioeconomic groups.

Integration of cancer registry and electronic health record data to construct a childhood cancer survivorship cohort, facilitate risk stratification for late effects, and assess appropriate follow-up care

BACKGROUND

This retrospective study harnessed an institutional cancer registry to construct a childhood cancer survivorship cohort, integrate electronic health record (EHR) and geospatial data to stratify survivors based on late-effect risk, analyze follow-up care patterns, and determine factors associated with suboptimal follow-up care.

PROCEDURE

The survivorship cohort included patients ≤18 years of age reported to the institutional cancer registry between January 1, 1994 and November 30, 2012. International Classification of Diseases for Oncology, third revision (ICD-O-3) coding and treatment exposures facilitated risk stratification of survivors. The EHR was linked to the cancer registry based on medical record number (MRN) to extract clinic visits.

RESULTS

Five hundred and ninety pediatric hematology-oncology (PHO) and 275 pediatric neuro-oncology (PNO) survivors were included in the final analytic cohort. Two hundred and eight-two survivors (32.6%) were not seen in any oncology-related subspecialty clinic at Duke 5-7 years after initial diagnosis. Factors associated with follow-up included age (p = .008), diagnosis (p < .001), race/ethnicity (p = .010), late-effect risk strata (p = .001), distance to treatment center (p < .0001), and area deprivation index (ADI) (p = .011). Multivariable logistic modeling attenuated the association for high-risk (OR 1.72; 95% CI 0.805, 3.66) and intermediate-risk (OR 1.23, 95% CI 0.644, 2.36) survivors compared to survivors at low risk of late effects among the PHO cohort. PNO survivors at high risk for late effects were more likely to follow up (adjusted OR 3.66; 95% CI 1.76, 7.61).

CONCLUSIONS

Nearly a third of survivors received suboptimal follow-up care. This study provides a reproducible model to integrate cancer registry and EHR data to construct risk-stratified survivorship cohorts to assess follow-up care.

Demographic and Socioeconomic Disparities in Life Expectancy With Hearing Impairment in the United States

OBJECTIVES

Hearing impairment is one of the most common disabilities among older people, and its prevalence will increase as the U.S. population ages. However, little is known about social disparities in onset or transitions into and out of hearing impairment, nor how these transitions impact years of life to be spent impaired.

METHOD

We investigate the number of years an "average" person can expect to live with and without hearing impairment after age 50; sex, race, educational, and regional differences in these expectancies; and the implication of hearing impairment for remaining life expectancy. Bayesian multistate life table methods are applied to 9 waves of data from the Health and Retirement Study (1998-2014) to investigate social disparities in life expectancy with hearing impairment (n = 20,200) for the general population, people hearing impaired at age 50, and people hearing unimpaired at age 50.

RESULTS

Men, Hispanics, persons with less educational attainment, and those born in the south can expect to live a larger proportion of their remaining lives hearing impaired. Although transitions from hearing impaired to unimpaired occur, those with some hearing impairment at age 50 can expect to live more years with hearing impairment, and hearing impairment does not shorten remaining life expectancy.

DISCUSSION

Significant sociodemographic disparities in hearing impaired life expectancy exist. In contrast to past research, we find that hearing impairment does not affect total life expectancy. Future research should consider the consequences of hearing impairment for years to be lived with other age-related and potentially downstream health outcomes.

Association between Hyperbilirubinemia and Hearing Screen Failure in the Neonatal Intensive Care Unit in Infants Born Preterm

OBJECTIVE

To characterize the association between hyperbilirubinemia and a failed newborn hearing screen in infants born at 22-32 weeks of gestation.

STUDY DESIGN

We included infants with gestational ages of 22-32 weeks who were discharged from neonatal intensive care units in the US from 2002 to 2017 with available newborn hearing screen results obtained after 34 weeks postmenstrual age. We excluded infants with severe birth asphyxia or craniofacial abnormalities. We identified 95 672 infants from 313 neonatal intensive care units. We used multivariable logistic regression to examine the association between maximum total bilirubin at <21 days postnatal age with failed hearing screen, adjusting for important demographic and clinical risk factors.

RESULTS

The median gestational age and birth weight were 30 weeks (IQR, 28-32 weeks) and 1330 g (IQR, 1010-1630 g), respectively. The median maximum total bilirubin was 8.3 mg/dL (IQR, 6.7-10.0 mg/dL), and 5275 infants (6%) failed their newborn hearing screen. On adjusted analysis, each 1 mg/dL increase in maximum total bilirubin was associated with a small, but significant, increase in odds of a failed hearing screen (OR, 1.03; 95% CI, 1.02-1.04).

CONCLUSIONS

An increased maximum total bilirubin level was independently associated with hearing screen failure. Further prospective studies are needed to understand whether this increased risk of hearing screen failure translates to increased risk of hearing loss.

Trends in the Geospatial Distribution of Inpatient Adult Surgical Services across the United States

OBJECTIVE

The aim of this study was to define trends in the geographic distribution of surgical services in the United States to assess possible geographic barriers and disparities in access to surgical care.

SUMMARY BACKGROUND DATA

Despite the increased need and utilization of surgical procedures, Americans often face challenges in gaining access to health care that may be exacerbated by the closure and consolidation of hospitals. Although access to surgical care has been evaluated relative to the role of insurance, race, and health literacy/education, the relationship of geography and travel distance to access has not been well studied.

METHODS

The 2005 and 2015 American Hospital Association annual survey was used to identify hospitals with surgical capacity; the data were merged with 2010 Census Bureau data to identify the distribution of the US population relative to hospital location, and geospatial analysis tools were used to examine a service area of real driving time surrounding each hospital.

RESULTS

Although the number of hospitals that provided surgical services slightly decreased over the time periods examined (2005, n = 3791; 2015, n = 3391; P<0.001), the number of major surgery hospitals increased from 2005 (n = 539) to 2015 (n = 749) (P<0.001). The geographic location of hospitals that provided surgical services changed over time. Specifically, although in 2005 852 hospitals were located in a rural area, that number had decreased to 679 by 2015 (P<0.001). Of particular note, from 2005 to 2015 there was an 82% increase in the number of people who lived further than 60 minutes from any hospital (P<0.001). However, the number of people who lived further than 60 minutes from a major surgery hospital decreased (P<0.001).

CONCLUSIONS

Although the number of rural hospitals decreased over the last decade, the number of large, academic medical centers has increased; in turn, there has been an almost doubling in the number of people who live outside a 60-minute driving range to a hospital capable of performing surgery.

Neighborhood disadvantage and 30-day readmission risk following Clostridioides difficile infection hospitalization

BACKGROUND

Clostridioides difficile infection (CDI) is commonly associated with outcomes like recurrence and readmission. The effect of social determinants of health, such as 'neighborhood' socioeconomic disadvantage, on a CDI patient's health outcomes is unclear. Living in a disadvantaged neighborhood could interfere with a CDI patient's ability to follow post-discharge care recommendations and the success probability of these recommendations, thereby increasing risk of readmission. We hypothesized that neighborhood disadvantage was associated with 30-day readmission risk in Medicare patients with CDI.

METHODS

In this retrospective cohort study, odds of 30-day readmission for CDI patients are evaluated controlling for patient sociodemographics, comorbidities, and hospital and stay-level variables. The cohort was created from a random 20% national sample of Medicare patients during the first 11 months of 2014.

RESULTS

From the cohort of 19,490 patients (39% male; 80% white; 83% 65 years or older), 22% were readmitted within 30 days of an index stay. Unadjusted analyses showed that patients from the most disadvantaged neighborhoods were readmitted at a higher rate than those from less disadvantaged neighborhoods (26% vs. 21% rate: unadjusted OR = 1.32 [1.20, 1.45]). This relationship held in adjusted analyses, in which residence in the most disadvantaged neighborhoods was associated with 16% increased odds of readmission (adjusted OR = 1.16 [1.04, 1.28]).

CONCLUSIONS

Residence in disadvantaged neighborhoods poses a significantly increased risk of readmission in CDI patients. Further research should focus on in-depth assessments of this population to better understand the mechanisms underlying these risks and if these findings apply to other infectious diseases.

Trends in the Geospatial Distribution of Adult Inpatient Surgical Cancer Care Across the United States

INTRODUCTION

The relationship and trends of geography and travel distance to access surgical cancer care has been poorly characterized. The objective of the study was to define the geographic distribution of access to hospital-based operative cancer care across the USA.

METHODS

A cohort analysis was performed using the 2005 and 2015 American Hospital Association Annual Survey, Census Bureau Data for 2010, and the American Community Survey 5-year estimates for 2011 to 2016.

RESULTS

The number of hospitals that provided surgical services with an approved American College of Surgeons (ACS) cancer program slightly increased over the time periods examined (2005, n = 1203 vs. 2015, n = 1284; p = 0.7210). Based on geospatial analysis, 18,214,994 (5.9%) people lived more than 60 min from a hospital with a cancer program in 2005 compared with 34,630,516 (11.2%) by 2015. Communities within a 60-min drive time were more likely to be composed of individuals who completed high school (85.9% vs. 84.2%), were employed (62.7% vs. 57.1%), had a higher median household income ($67.4 k vs. $53.2 k), and lived within states that had expanded Medicaid (62.5% vs. 48.9%) (all p < 0.0001). In contrast, communities outside of a 60-min drive time had a greater proportion of individuals below the federal poverty level (18.3% vs. 16.5%; p < 0.0001).

CONCLUSIONS

While the number of hospitals with ACS approved cancer program designation increased over the last decade, the number of people living greater than 60 min from an approved cancer programs nearly doubled. These data highlight worrisome geospatial trends that may make access to cancer care for certain patient populations increasingly challenging.

Area deprivation is associated with poorer overall survival in children with acute lymphoblastic leukemia

BACKGROUND

Few studies have evaluated social determinants of outcomes disparities for children with acute lymphoblastic leukemia (ALL). We investigated the association of area deprivation index (ADI), a measure of neighborhood socioeconomic disadvantage, with overall survival (OS) among children and adolescents with ALL.

PROCEDURE

We obtained demographic and clinical data, geocoded addresses at diagnosis, and vital status on all Texas children diagnosed with ALL from 1995 to 2011 (N = 4104). Using the US Census Bureau 2010 geography, we computed ADI scores for all census tracts in Texas and grouped the tracts into quartiles: least, third-most, second-most, and most disadvantaged. We mapped children to ADI quartiles based on residence at diagnosis, and estimated OS using Cox regression adjusting for sex, race/ethnicity, age, and metropolitan/nonmetropolitan residence.

RESULTS

Five-year OS ranged from 89% (95% confidence interval [CI] 87-91%) for children in the least disadvantaged tracts to 79% (95% CI 76-81%) for children in the most disadvantaged tracts (P = 4E-7). An elevated hazard ratio (HR) for death was observed for children in the most disadvantaged tracts (HR 1.57, 95% CI 1.23-2.00), and trends toward increased mortality were observed in the third-most and second-most disadvantaged tracts (HR 1.23, 95% CI 0.97-1.57 and HR 1.27, 95% CI 0.99-1.62, respectively). In stratified analyses, area disadvantage was more strongly associated with OS in males than females.

CONCLUSIONS

Neighborhood socioeconomic disadvantage is associated with inferior OS in this analysis of over 4100 children with ALL, highlighting the substantial contributions of social-environmental factors to childhood cancer survival. This association was stronger in males than females.

Loss to Follow-Up After Newborn Hearing Screening: Analysis of Risk Factors at a Massachusetts Urban Safety-Net Hospital

OBJECTIVES

This study examines the unique factors that influence loss to follow-up after newborn hearing screening for patients at a Massachusetts urban safety-net hospital. We seek to characterize our patient population, investigate correlations between patient factors and rates of follow-up, and understand gaps in care.

DESIGN

A retrospective chart review was conducted of patients born at an urban safety-net hospital from January 2015 through May 2018 who did not pass the newborn hearing screening in one or both ears. A total of 197 infants were included in our study. Outcomes of interest included rates and latency of follow-up appointments, infant demographics (sex, race, birth weight, risk factors for hearing loss), and maternal factors (age, marital status, smoking status, number of children).

RESULTS

From January 2015 through May 2018, 17% (n = 34) of infants were lost to follow-up. Of those who attended an initial audiology evaluation, the median time between screening and appointment was 29 days. Newborns were 3.5 times at risk of being lost to follow-up if their mothers smoked during pregnancy compared to those whose mothers did not smoke. Further, newborns with multiple siblings in the home were less likely to utilize any audiological services. High-risk infants, such as those with an extended stay in the neonatal intensive care unit, were found to have higher rates of loss to follow-up.

CONCLUSIONS

Our results indicate that patients at urban safety-net hospitals require increased support to decrease rates of loss to follow-up. In particular, strategies to aid mothers who smoke, have multiple children, or have high-risk infants can address gaps in care for newborns after hearing screening.

Cytomegalovirus-vectored vaccines for HIV and other pathogens

: The use of cytomegalovirus (CMV) as a vaccine vector to express antigens against multiple infectious diseases, including simian immunodeficiency virus, Ebola virus, plasmodium, and mycobacterium tuberculosis, in rhesus macaques has generated extraordinary levels of protective immunity against subsequent pathogenic challenge. Moreover, the mechanisms of immune protection have altered paradigms about viral vector-mediated immunity against ectopically expressed vaccine antigens. Further optimization of CMV-vectored vaccines, particularly as this approach moves to human clinical trials will be augmented by a more complete understanding of how CMV engenders mechanisms of immune protection. This review summarizes the particulars of the specific CMV vaccine vector that has been used to date (rhesus CMV strain 68-1) in relation to CMV natural history.

Genetic Causes of Inner Ear Anomalies: a Review from the Turkish Study Group for Inner Ear Anomalies

Inner ear anomalies diagnosed using a radiological study are detected in almost 30% of cases with congenital or prelingual-onset sensorineural hearing loss. Inner ear anomalies can be isolated or occur along with a part of a syndrome involving other systems. Although astonishing progress has been made in research aimed at revealing the genetic causes of hearing loss in the past few decades, only a few genes have been linked to inner ear anomalies. The aim of this review is to discuss the known genetic causes of inner ear anomalies. Identifying the genetic causes of inner ear anomalies is important for guiding clinical care that includes empowered reproductive decisions provided to the affected individuals. Furthermore, understanding the molecular underpinnings of the development of the inner ear in humans is important to develop novel treatment strategies for people with hearing loss.