Health care disparities in morbidity and mortality in adults with acute and remote status epilepticus: A national study.

OBJECTIVE: Although disparities have been described in epilepsy care, their contribution to status epilepticus (SE) and associated outcomes remains understudied. METHODS: We used the 2010-2019 National Inpatient Sample to identify SE hospitalizations using International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM)/ICD-10-CM codes. SE prevalence was stratified by demographics. Logistic regression was used to assess factors associated with electroencephalographic (EEG) monitoring, intubation, tracheostomy, gastrostomy, and mortality. RESULTS: There were 486 861 SE hospitalizations (2010-2019), primarily at urban teaching hospitals (71.3%). SE prevalence per 10 000 admissions was 27.3 for non-Hispanic (NH)-Blacks, 16.1 for NH-Others, 15.8 for Hispanics, and 13.7 for NH-Whites (p < .01). SE prevalence was higher in the lowest (18.7) compared to highest income quartile (18.7 vs. 14, p < .01). Older age was associated with intubation, tracheostomy, gastrostomy, and in-hospital mortality. Those ≥80 years old had the highest odds of intubation (odds ratio [OR] = 1.5, 95% confidence interval [CI] = 1.43-1.58), tracheostomy (OR = 2, 95% CI = 1.75-2.27), gastrostomy (OR = 3.37, 95% CI = 2.97-3.83), and in-hospital mortality (OR = 6.51, 95% CI = 5.95-7.13). Minority populations (NH-Black, NH-Other, and Hispanic) had higher odds of tracheostomy and gastrostomy compared to NH-White populations. NH-Black people had the highest odds of tracheostomy (OR = 1.7, 95% CI = 1.57-1.86) and gastrostomy (OR = 1.78, 95% CI = 1.65-1.92). The odds of receiving EEG monitoring rose progressively with higher income quartile (OR = 1.47, 95% CI = 1.34-1.62 for the highest income quartile) and was higher for those in urban teaching compared to rural hospitals (OR = 12.72, 95% CI = 8.92-18.14). Odds of mortality were lower (compared to NH-Whites) in NH-Blacks (OR = .71, 95% CI = .67-.75), Hispanics (OR = .82, 95% CI = .76-.89), and those in the highest income quartiles (OR = .9, 95% CI = .84-.97). SIGNIFICANCE: Disparities exist in SE prevalence, tracheostomy, and gastrostomy utilization across age, race/ethnicity, and income. Older age and lower income are also associated with mortality. Access to EEG monitoring is modulated by income and urban teaching hospital status. Older adults, racial/ethnic minorities, and populations of lower income or rural location may represent vulnerable populations meriting increased attention to improve health outcomes and reduce disparities.

Factors Associated With Discharge Against Medical Advice in US Adolescents Hospitalized for Suicidal Ideation or Suicide Attempt.

OBJECTIVE: Little is known about factors associated with discharge against medical advice (DAMA) in adolescent acute care hospitalization for suicidal ideation (SI) and suicide attempt (SA). Our study seeks to determine whether certain socioeconomic factors or hospital characteristics are associated with DAMA in this population. METHOD: This retrospective cross-sectional study used data from the National Inpatient Sample from the 2015 fourth quarter to 2019. We included children 10 to 19 years of age hospitalized with a primary or secondary International Classification of Diseases, Tenth Revision, Clinical Modification diagnosis of SI or SA. Exposures were patient socio-demographics and hospital characteristics. The outcome was DAMA. Logistic regression generated odds ratios (ORs) with 95% CIs to measure the association between each patient and hospital characteristics and DAMA. RESULTS: Of 476,755 hospitalizations meeting inclusion criteria, 3,825 (0.8%) were DAMA. After adjusting for socio-demographics and hospital characteristics, predictive factors for DAMA were age 16 to 19 years (OR = 1.41; CI = 1.08-1.82), self-pay status (OR = 1.43; CI = 1.12-1.83), hospital region South and West (OR = 1.55; CI = 1.10-2.20 and OR = 1.79; CI = 1.26-2.54, respectively), and urban non-teaching status of the hospital (OR = 1.90; CI = 1.42-2.55). Hispanic patients were less likely to be DAMA (OR = 0.66; CI = 0.51-0.85). CONCLUSION: Variations in DAMA probabilities by age, insurance status, hospital teaching status, and hospital regions suggest a need for a better understanding of this uncommon outcome.

Gender role beliefs and adolescent pregnancy in Colombia: findings from the 2015 DHS survey.

This study investigated the association between gender role beliefs and the prevalence and likelihood of experiencing pregnancy among 8525 young women and girls aged 13-19 years in Colombia. The primary outcome of interest was adolescent pregnancy. Retrospective cross-sectional analysis utilised data from the 2015 Demographic and Health Survey (DHS) in Colombia, which included an add-on questionnaire on gender relations. Our analysis measured both pregnancy prevalence and pregnancy likelihood in relation to gender role beliefs. With one exception, young women who disagreed with traditionally conforming gender roles had a lower prevalence of pregnancy and were less likely to experience pregnancy than those who agreed with them. The highest likelihood of pregnancy prevalence and likelihood was found among those who agreed with statements suggesting male dominance and those who agreed with women's homemaking responsibilities. The greater the adherence to traditionally conforming gender role beliefs, the higher the likelihood of experiencing pregnancy during adolescence. Girls' and young women's adherence to traditional gender role beliefs appeared to be a risk factor for adolescent pregnancy. Our findings support Colombia's current sex education policies and practices within the framework of gender equity, and evidence the link between gender equity and girls' and young women's reproductive health.

Racial Disparities in Plasma Cell Leukemia Outcomes Among Hospitalized Patients in the United States.

Plasma cell leukemia (PCL) is a rare, aggressive subtype of multiple myeloma (MM) with a poor prognosis. Prior studies have shown that racial disparities affect MM patients in various ways, which may affect patients' outcomes. In this study, we aimed to investigate racial differences in hospitalization outcomes for PCL using Nationwide Inpatient Sample data. Overall, hospitalization rates for PCL tended to decrease over the past decade. Among hospitalized patients with a primary diagnosis of PCL, there was no statistically significant association between race/ethnicity and hospitalization rates, between NH-White patients and NH-Black patients (OR 1.94; 95%CI 0.3-3.54, p 0.95), and Hispanic patients (OR 0.47; 95% CI 0.05-4.23, p 0.5). Additionally, there was no significant association between race/ethnicity and inpatient mortality. The overall lower incidence of PCL, more significant disease burden, and poor prognosis across all groups may contribute to our findings. With increasing evidence that PCL is cytogenetically distinct from MM, more investigation into biological and sociodemographic factors that affect healthcare utilization and treatment outcomes should be carried out.

Breastfeeding Practices of Women with HIV in Sub-Saharan Africa.

OBJECTIVE: To identify sociodemographic factors that could enhance breastfeeding uptake among women with HIV in sub-Saharan Africa. DESIGN: This was a secondary analysis from a retrospective cohort study using the Demographic Health Surveys (DHS) on women and HIV data from 14 sub-Saharan African countries during the period from 2010 to 2018. Our study sample encompassed women aged 15 to 49 years with HIV, with childbearing history within the 3 to 5 years preceding the survey, living in any of the countries in sub-Saharan Africa for whom breastfeeding information was available. We used an adjusted survey log binomial regression model to examine factors associated with breastfeeding among participants. SETTING: Sub-Saharan Africa. PARTICIPANTS: Breastfeeding women with HIV from 15 sub-Saharan African countries. RESULTS: Of 138,920 women with HIV in sub-Saharan Africa, 49,479 (35.6%) breastfed their infants. Young women, aged 15 to 19 years (90.5%, n = 2,422) were more likely to breastfeed than those aged 25 to 29 years (13.7%, n = 5,266). Breastfeeding was more common among women who lived in rural areas (38.1%, n = 26,000) than among those in urban areas (33.2%, n = 23,479) (p < .01). The wealthiest women (43.3%, n = 13,710) breastfed more than those with the lowest economic resources (30.8%, n = 4,750) (p < .01). CONCLUSION: Recognizing the breastfeeding issues in this individualized sub-Saharan population of women with HIV can influence the creation of more accessibility to education, resources, supplies, counseling, and support throughout the region and beyond through policy changes in health care.

Many pediatric patients with gastroparesis do not receive dietary education.

BACKGROUND: Gastroparesis is delayed gastric emptying in the absence of obstruction; dietary modifications are first-line treatment. However, we do not know the factors related to provision of dietary recommendations. METHODS: We sought to determine how often pediatric patients with gastroparesis receive dietary education (from a gastroenterology provider vs dietitian), the recommendations given, and factors related to these outcomes. We performed a retrospective chart review of children 2- to 18-years-old managed by pediatric gastroenterology providers at our institution. Patient demographics and clinical data, dietary advice given (if any), and dietitian consultation (if any), practice location, and prokinetic use were captured. An adjusted binomial regression model identified factors associated with dietary education provision, dietitian consultation, and diet(s) recommended. RESULTS: Of 161 patients who met criteria, 98 (60.8%) received dietary education and 42 (26.1%) met with a dietitian. The most common recommendation by gastroenterology providers and dietitians was diet composition adjustment (26.5% and 47.6%, respectively). Patients with nausea/vomiting were less likely to receive dietary education or be recommended to adjust diet composition. Patients with weight loss/failure to thrive were more likely to receive dietitian support. Patients seen in the community vs medical center outpatient setting were more likely to be recommended a low-fat diet. CONCLUSIONS: Only a little over half of children with gastroparesis receive dietary education and use of a dietitian's expertise is much less frequent. Symptoms and clinical setting appear related to what, where, and by whom guidance is provided.

Racial Disparities in Preterm Birth among Pregnant Women with Obesity.

OBJECTIVES: We assessed the impact of obesity and racial disparities on preterm birth (PTB) in the United States and sought to determine whether obesity widens the racial-ethnic disparity gap in preterm birth with a focus on non-Hispanic Black and White women. METHODS: Using birth data for the years 2014-2019 made publicly available by the Centers for Disease Control and Prevention and obtained from the National Vital Statistics System, we conducted a cross-sectional cohort study analyzing a total of 14,864,844 births from 2014 to 2019. RESULTS: We observed dose-dependent changes in obesity and PTB by defining obesity in subgroups and PTB in a stratified method. PTB occurred more among non-Hispanic Black women than their non-Hispanic White and Hispanic counterparts. We observed a consistent trend of increased PTB among women with high body mass index. Racial disparity existed in PTB among pregnant obese women, with non-Hispanic Black women exhibiting the greatest risk for PTB. CONCLUSIONS: Our work further contributes to the growing knowledge of the existence of health disparity among the Black population.

Data Mining Pipeline for COVID-19 Vaccine Safety Analysis Using a Large Electronic Health Record.

We developed a novel data mining pipeline that automatically extracts potential COVID-19 vaccine-related adverse events from a large Electronic Health Record (EHR) dataset. We applied this pipeline to Optum® de-identified COVID-19 EHR dataset containing COVID-19 vaccine records between December 11, 2020 and January 20, 2022. We compared post-vaccination diagnoses between the COVID-19 vaccine group and the influenza vaccine group among 553,682 individuals without COVID-19 infection. We extracted 1,414 ICD-10 diagnosis categories (first three ICD10 digits) within 180 days after the first dose of the COVID-19 vaccine. We then ranked the diagnosis codes using the adverse event rates and adjusted odds ratio based on the self-controlled case series analysis. Using inverse probability of censoring weighting, we estimated the right-censored time-to-event records. Our results show that the COVID-19 vaccine has a similar adverse events rate to the influenza vaccine. We found 20 types of potential COVID-19 vaccine-related adverse events that may need further investigation.

Racial and Ethnic Disparities in Stillbirth among Pregnant Women with Obesity.

OBJECTIVE: The aim of this study was to examine the relationship between obesity and risk of stillbirth among pregnant women with obesity in the United States, with a focus on racial and ethnic disparities. STUDY DESIGN: We conducted a retrospective cross-sectional analysis of birth and fetal data from the 2014 to 2019 National Vital Statistics System (N = 14,938,384 total births) to examine associations between maternal body mass index (BMI) and risk of stillbirth. Cox's proportional hazards regression model was used to compute adjusted hazard ratios (HR) as a measure of risk of stillbirth in relation to maternal BMI. RESULTS: The stillbirth rate was 6.70 per 1,000 births among women with prepregnancy obesity, while the stillbirth rate among women with a normal (nonobese) prepregnancy BMI was 3.85 per 1,000 births. The risk of stillbirth was greater among women with obesity compared with women without obesity (HR: 1.39; 95% confidence interval [CI]: 1.37-1.41). Compared with non-Hispanic (NH) Whites, women identifying as NH-other (HR: 1.66; 95% CI: 1.61-1.72) and NH-Black (HR: 1.31; 95% CI: 1.26-1.35) were at higher risk of stillbirth, while Hispanic women had a decreased likelihood of stillbirth (HR: 0.38; 95% CI: 0.37-0.40). CONCLUSION: Obesity is a modifiable risk factor for stillbirth. Public health awareness campaigns and strategies targeting weight management in women of reproductive age and racial/ethnic populations at highest risk for stillbirth, are needed. KEY POINTS: · Stillbirth rates differ by race and ethnicity.. · Risk of stillbirth was greatest among women with obesity.. · Stillbirth rates rise with ascending prepregnancy BMI..

Association Between Social Determinants of Health Issues and Maternal Obesity Among American Racial/Ethnic Groups.

Background and Objective: Social determinants of health impact various clinical health outcomes in the population. We conducted this study to examine the impact of adverse social determinants of health (SDOH) characteristics on maternal obesity among hospitalized pregnant women in the US and its potential differential impact on women of different races/ethnicities. Methods: The nationwide pregnancy hospitalization data analyzed in this study were collected through the Nationwide Inpatient Sample (NIS) database during 2016-2018. We conducted descriptive analyses to evaluate the relationship between patient characteristics and maternal obesity. Using the adjusted survey logistic regression model, we calculated the independent association between social determinants of health (SDOH) risk factors and hospitalization characteristics (exposure) and maternal obesity (outcome). Lastly, stratified survey logistic regression models were created for each racial/ethnic group to examine the differential impact in the association between SDOH issues and maternal obesity. Results: The prevalence of SDOH issues was highest in non-Hispanic (NH) Black women (6.59 per 1000 hospitalizations), whereas the prevalence of obesity among those with SDOH issues was highest in Hispanic women (15.3 per 100 hospitalizations). We observed that pregnant women with SDOH issues were 1.15 times as likely (95% CI: 1.05-1.25) to experience maternal obesity compared to those without SDOH issues. Relative to their counterparts without SDOH issues, Hispanics and NH-Others with SDOH issues had increased odds of obesity, whereas NH-White and NH-Black mothers with SDOH had similar odds of obesity (p>0.05). Conclusion and Global Health Implications: In conclusion, pregnant women with SDOH issues had an increased likelihood of obesity diagnosis and the association demonstrated differential impact across racial/ethnic sub-populations. This information has potential utility for counseling and formulation of targeted interventions for pregnant women.

Implications of Social Determinants of Health Characteristics on Fetal Growth Restriction Among Various Racial/Ethnic Groups.

OBJECTIVES: Current knowledge regarding the relationship between social determinants of health (SDOH) characteristics of hospitalized American pregnant women and fetal growth restriction (FGR) reveals a dearth in the literature. Therefore, we examined the impact of SDOH on FGR among hospitalized American women in this study. METHODS: Using the Nationwide Inpatient Sample (NIS) dataset for the years 2016-2018, we conducted this cross-sectional study. We conducted survey logistic regression to examine the association between SDOH factors and FGR, after adjusting for various hospitalization characteristics. RESULTS: Non-Hispanic (NH)-Black people had the highest prevalence of SDOH issues (0.7%), followed by Hispanics who had a prevalence of 0.4%. We observed that pregnant women with SDOH issues were 1.16 times as likely to experience FGR as those without SDOH (95% CI 1.0-1.34). When compared to their respective racial counterparts without SDOH, Hispanics with SDOH had increased odds, NH-White and NH-others with SDOH had the same likelihood, and NH-Black women with SDOH had lower odds of FGR. CONCLUSIONS FOR PRACTICE: Overall, our study illustrated an association between maternal SDOH issues and FGR, and the impact of SDOH issues on the outcome of FGR across various racial/ethnic groups. While our study provides useful insight into the topic, further research is needed to explain the observed varied influence of SDOH on FGR across racial/ethnic groups.

What is already known on this subject? Children with fetal growth restriction (FGR) present with a greater risk of long-term health effects including impaired neurological, cardiovascular and endocrine diseases in adulthood. FGR affects 5-10% of pregnancies and is the second leading cause of perinatal mortality.What this study adds? An association between maternal social determinants of health (SDOH) issues and FGR, and the impact of SDOH issues on the outcome of FGR across various racial/ethnic groups is present. When compared to their respective racial counterparts without SDOH, Hispanics with SDOH had increased odds of FGR.

Racial and insurance status disparities in imaging modality among pediatric patients diagnosed with appendicitis.

BACKGROUND: Studies have assessed the type of diagnostic imaging used in the treatment of appendicitis in children. Few studies investigated racial/ethnic and insurance disparities in imaging modalities used in pediatric patients diagnosed with appendicitis. Our study seeks to determine whether race/ethnicity and insurance status are associated with imaging modality chosen for pediatric patients diagnosed with appendicitis in the emergency department. METHODS: This was a retrospective cohort study utilizing data from the National Hospital Ambulatory Medical Care Survey (NHAMCS) from 2010 to 2019. We included children <18 years old with a ICD-9-CM and ICD-10-CM diagnosis of appendicitis. Exposures were patient race/ethnicity and insurance status. Outcome of interest was imaging modality. We conducted adjusted survey logistic regression to evaluate the patient characteristics and receipt each of the imaging modalities among those with a diagnosis of appendicitis. RESULTS: Of 308,140,115 emergency department (ED) visits, 1,126,865 (0.37%) had a diagnosis of appendicitis. Overall, male patients were more likely to receive CAT scan in comparison to female children (OR=2.52, 95% CI= 1.16-5.49). Additionally, Hispanic children who had significantly greater odds of obtaining ultrasound (OR= 4.56, 95% CI=1.09-19.12). Hispanic children were also less likely to receive x-ray (OR= 0.31, 95% CI=0.11-0.89) or computed tomography (CT) scans (OR= 0.23, 95% CI=0.07-0.76). Children diagnosed with appendicitis who had insurance other than private, Medicare, Medicaid, or self-pay were significantly more likely to receive x-ray studies (OR=4.39, 95% CI= 1.23-15.69). CONCLUSIONS AND GLOBAL HEALTH IMPLICATIONS: This study demonstrated the presence of racial/ethnic and insurance status disparities in the imaging modality chosen to assist in diagnosing appendicitis in pediatric patients.

Screening for behavioural problems in children aged 3 to 5 years.

OBJECTIVE: We aim to investigate the association between undergoing behavioural screening and having a diagnosis of behavioural problems and to explore factors associated with receiving treatment with counselling versus medication in children 3 to 5 years old. METHODS: This cross-sectional data analysis consisted of children 3-5 years old from the US National Study of Children's Health, 2017-2018. Pearson's χ2 test was used to assess the association between formal and informal screening and having a behavioural problem. Prevalence of behavioural screening, behavioural problems, and covariates were calculated. Survey binomial logistic regression was used to evaluate the association between formal and informal screening and treatment with counselling versus medication in children with behavioural problems. RESULTS: A total of 7837 children 3-5 years old were included in the analysis. Combined formal and informal screening for behavioural problems was 18.1%, 12.3% of children had informal screening only, and 10.8% had formal screening, as reported by parents. Five percent of children had a diagnosis of behavioural problem, for which 6.8% had formal screening only, 16.5% had informal screening only, and 58% had both. Children who had both types of screening were about 10 times as likely to have behavioural problems, and about 4 times as likely if they only had informal screening. Children with behavioural problems who had both types of screening were about 5 times as likely to be treated with medication. CONCLUSION: Formal behavioural screening was low in children 3 to 5 years old but, when done in conjunction with informal screening such as addressing parental concerns, was associated with a diagnosis of behavioural problems and receipt of treatment with medication.

Racial-Ethnic Disparities in Benzodiazepine Prescriptions for Anxiety in US Emergency Departments.

BACKGROUND/OBJECTIVES: Benzodiazepines are commonly used to treat anxiety and panic disorders. White patients are more likely to receive a benzodiazepine prescription than non-White patients in different medical settings. Racial-ethnic disparities have also been found in prescription of opioids from the emergency room. It is not known whether racial disparities in benzodiazepine prescriptions exist at the emergency department level. This study aims to analyze the relationship between benzodiazepine prescriptions for anxiety in an emergency department setting. DESIGN: Data for this cross-sectional study was obtained from the National Hospital Ambulatory Medical Care Survey (NHAMCS) Years 2009-2018. Patients ≥ 18 years of age presenting to the emergency department with anxiety were identified. Adjusted survey logistic regression was conducted to evaluate the patient characteristics and receipt of benzodiazepines. RESULTS: This study analyzed 1,174,556,119 emergency department (ED) visits out of which 2.8% had a diagnosis of anxiety disorder. Prevalence of anxiety was higher in the following groups: females, younger age range (18-34 years old), and non-Hispanic (NH) White. Rates of benzodiazepine prescription for patients with anxiety were higher for NH-White and Hispanic patients at 29% and 28% respectively than for NH-Black and NH-Other (24% and 21% respectively). Compared to NH-White patients, NH-Black patients were 36% less likely to be prescribed a benzodiazepine (prevalence ratio (PR) = 0.64; 95% confidence interval (CI) = 0.54-0.76) and Hispanic patients were 19% less likely to be prescribed a benzodiazepine (PR = 0.81; 95% CI = 0.68-0.96). Age, sex, or type of insurance did not show a statistically significant influence in the prescription of benzodiazepines. CONCLUSIONS: These findings reveal that NH-Black and Hispanic patients with anxiety are significantly less likely to be prescribed benzodiazepines than their NH-White counterparts in the ED. Further studies are needed to determine the root causes of these health disparities and strategies to combat them.

Disparities in mortality among acute myeloid leukemia-related hospitalizations.

Racial and socioeconomic disparities have become apparent in acute myeloid leukemia (AML) outcomes. We conducted a retrospective cohort study of hospitalizations for adults with a diagnosis of AML from 2009 to 2018 in the Nationwide Inpatient Sample (NIS). We categorized patients' ages in groups of <60 years and ≥60 years and stratified them by reported race/ethnicity. Exposures of interest were patient sociodemographics, hospital characteristics, and Elixhauser-comorbidity Index. Outcome of interest was in-hospital death. Statistical analyses included survey logistic regression to generate adjusted odds ratios (aORs) and 95% confidence intervals (CIs) to quantify the independent associations between patient characteristics and mortality. Of 622,417 AML-related hospitalizations, 57.6% were in patients ≥60 years. The overall rate of in-hospital death was 9.4%. Compared to patients <60, older patients experienced a higher rate of in-hospital death. In both age groups and in all ethnicities, mortality decreased over time. Differences in mortality were observed based on gender, payer, hospital location, and teaching status. For hospitalizations in patients ≥60, NH-Black race was associated with inferior in-hospital death outcomes (OR 1.17; CI 1.08-1.28). Urban teaching hospitals were associated with a 38% increase (OR 1.38; CI 1.06-1.80) in inpatient mortality in patients <60 and a 15% decrease (OR 0.85; CI 0.77-0.95) in inpatient mortality in patients ≥60. Our results highlight the increased need to recognize the role of race/ethnicity and socioeconomic factors and their contribution to disparate outcomes in AML.

Understanding Characteristics and Predictors of Admission From the Emergency Department for Patients With Intellectual Disability.

The goal of this investigation is to compare rates of admission from the emergency department (ED) and the characteristics of patients with intellectual disability (ID) who get admitted from the ED. This was a retrospective study using data from the United States' Nationwide Emergency Data Sample (NEDS) to investigate the associations between the diagnosis of ID and admission to the hospital in patients ≥ 18 years during the years 2016-2017. Adults with ID were almost four times as likely to be admitted to the hospital from the ED as patients who were not identified as having ID. Identifying the major contributors to increased admission for patients with ID may help improve their care.

Altering Brain Amyloidosis by Intra-Lingual and Extra-Nasal Exposure of Aß Aggregates.

Extensive experimental and human-derived evidence suggest that misfolded Aß particles spread similarly to infectious prions. Moreover, peripheral administration of Aß seeds accelerates brain amyloidosis in both susceptible experimental animals and humans. The mechanisms and elements governing the transport of misfolded Aß from the periphery to the brain are not fully understood, although circulation and retrograde axonal transport have been proposed. Here, we demonstrate that injection of Aß seeds in the tongue, a highly innervated organ, substantially accelerates the appearance of plaques in Tg2576 mice. In addition, the extra-nasal exposure of Aß aggregates increased amyloid pathology in the olfactory bulb. Our results show that exposing highly innervated tissues to Aß seeds accelerates AD-like pathological features, and suggest that Aß seeds can be transported from peripheral compartments to the brain by retrograde axonal transport. Research in this direction may be relevant on different fronts, including disease mechanisms, diagnosis, and risk-evaluation of potential iatrogenic transmission of Aß misfolding.

Factors Impacting Vaccine Uptake during Pregnancy: A Retrospective Analysis.

Background and Objective: Vaccine uptake rates during pregnancy remain below target goals due to a convergence of factors. In particular, women of lower socioeconomic means and racial minorities typically have reduced rates of vaccine acceptance. This study aims to identify additional factors contributing to vaccine acceptance within a sample population of women receiving prenatal care in Houston, Texas, United States of America. Methods: We performed a retrospective cross-sectional analysis of 11,500 pregnant women covered by Medicaid or ChipPerinate who received prenatal care during 2013-2021, assessing influenza (flu) and combined Tetanus, Diphtheria, Acellular Pertussis (TDAP) vaccine acceptance in the patient population. We examined temporal trends in flu and TDAP vaccination rates using Joinpoint regression analyses and evaluated the factors associated with single or concomitant vaccine acceptance during the study period and during the COVID-19 pandemic using adjusted log-binomial regression models. Results: In our population, 54% of patients received flu vaccination, and 76.1% received TDAP. TDAP rates increased from 2013-2015 but have shown an overall decline since then, as with the flu vaccine. Earlier entry to prenatal care (Prevalence Ratio [PR] 6.32; Confidence Interval [CI] 3.28-12.24) and pregnancy comorbidity such as gestational diabetes (PR 1.32; CI 0.82-2.19) were positively associated with uptake. In contrast, the NH-Black race was negatively associated with vaccine acceptance (PR 0.51 CI; 0.25-0.99). Otherwise, age and history of pre-pregnancy comorbidities were not significant predictors. Conclusion and Global Health Implications: Within demographic groups identified as at-risk for vaccine refusal, modifying factors further impact vaccine hesitancy. Identifying these elements will guide targeted patient efforts to promote vaccine uptake, both for routine prenatal recommendations and for COVID vaccination.

Fetal Maturation and Intrauterine Survival in Asian American Women by Ethnicity.

OBJECTIVES: Although there are multiple ethnic subgroups of the Asian race, this population is usually treated as homogenous in public health research and practice. There is a dearth of information on fetal maturation and perinatal outcomes among Asian American women compared with their non-Hispanic (NH) White counterparts. This study aimed to determine whether fetal maturation, as captured by gestational age periods, influences the risk of stillbirth in Asian American fetuses, in general, as well as within different ethnic subgroups: Asian Indian, Korean, Chinese, Vietnamese, Japanese, and Filipino, using NH Whites as referent. METHODS: We included singleton births within 37 to 44 gestational weeks occurring in Asian American and NH White mothers from 2014 to 2017. Adjusted logistic regression models were used to quantify the association between mother's race/ethnicity and risk of stillbirth by gestational age phenotypes: early-term, full-term, late-term, and postterm. RESULTS: Compared with NH Whites, Asian Americans had 35% (adjusted odds ratio 0.65, 95% confidence interval 0.53-0.76) and 28% (adjusted odds ratio 0.72, 95% confidence interval 0.59-0.85) lower risk of early-term and full-term stillbirths, respectively. CONCLUSIONS: Our study suggests the existence of differential maturation of the fetoplacental unit as explanation for the decline in intrauterine survival advantage with advancing gestational age among Asian American subgroups.