COVID-19 booster vaccine uptake and reduced risks for long-COVID: A cross-sectional study of a U.S. adult population

Long-COVID (having symptoms lasting 3 months or longer post-infection) is an emerging public health concern, yet research on whether COVID-19 booster vaccines can mitigate this condition is limited. This study examined associations between booster uptake and long-COVID prevalence among U.S. adults. Data were analyzed from 8757 adults aged 18 years or older with a history of COVID-19 infection from the 2022 National Health Interview Survey. Weighted prevalence and logistic regression models examined relationships between self-reported COVID-19 booster vaccination status and long-COVID, adjusting for sociodemographics and health factors. 19.5 % reported experiencing long-COVID. Individuals receiving the COVID-19 booster vaccine had significantly lower adjusted odds of long-COVID (OR 0.75, 95 % CI 0.61-0.93) compared to unvaccinated individuals. Overall, these findings suggest that COVID-19 booster vaccination is associated with a reduced prevalence of long-COVID among the U.S. adult population, underscoring the importance of optimizing booster uptake to mitigate the long-term impacts of COVID-19.

Marijuana use disorder among adults with functional disabilities-A US population-based cross-sectional study

BACKGROUND AND OBJECTIVES

Recent studies suggest a growing trend in marijuana use, compared to a stable prevalence of marijuana use disorder among US adults over the first 15 years of the 21st century. This study investigated the recent patterns of marijuana use disorder among people with disabilities (PWD).

METHODS

We extracted a nationally representative sample (N = 209,058) from the 2015-2019 National Survey on Drug Use and Health data set and examined associations by functional disability status (any disability, disability by type, and number of disabling limitations) with marijuana use disorder using a series of independent multivariable logistic regression models. We also performed trend analyses during the study period.

RESULTS

The prevalence of marijuana use disorder (from 1.7% to 2.3%) increased significantly among PWD between 2015 and 2019 (p-trend < .001). PWD were significantly more likely to report marijuana use disorder (odds ratio [OR], 1.37, 95% confidence interval [CI], 1.24-1.52) than people without disability (PWoD). Those with cognitive limitation only (OR, 1.78, 95% CI, 1.53-2.06) and ≥2 limitations (OR, 1.29, 95% CI, 1.10-1.51) were more likely to report marijuana use disorder than PWoD.

DISCUSSION AND CONCLUSIONS

PWD had a consistently higher prevalence of marijuana use disorder than PWoD. Additionally, the level of risk for marijuana use disorder varied by disability type and number of disabling limitations.

SCIENTIFIC SIGNIFICANCE

Our study provided new nuance on disparities in marijuana use disorder between PWD and PWoD and further revealed the varied risks for marijuana use disorder across different disability statuses.

Smoke-Free Policies and 30-Day Mortality Rates for Chronic Obstructive Pulmonary Disease

BACKGROUND

Smoke-free policies have been shown to impact 30-day readmission rates due to chronic obstructive pulmonary disease (COPD) among adults aged ≥65 years. However, little is known about the association between smokefree policies and 30-day mortality rates for COPD. Therefore, we investigated the association between comprehensive smoke-free policies and 30-day mortality rates for COPD.

METHODS

We used a cross-sectional study design and retrospectively examined risk-adjusted 30-day mortality rates for COPD across US hospitals in 1171 counties. Data were sourced from Centers for Medicare and Medicaid Services (CMS) Hospital Value-Based Purchasing (HVBP) Program, American Hospital Association (AHA) Annual Surveys, US Census Bureau Current Population Survey, and US Tobacco Control Laws Database from the American Nonsmokers' Rights Foundation (ANRF). Data were averaged at the county level for years 2015-2018. Hierarchical Poisson models adjusted for differences in hospital characteristics and accounted for the clustering of hospitals within a county were used.

RESULTS

Our findings show a consistent association between stronger smoke-free policies and a reduction in COPD mortality. When evaluating smoke-free policy, county characteristics, and hospital characteristics individually, we found that counties with full coverage or partial coverage had a reduced incidence rate of COPD mortality compared to no coverage counties. After adjusting for the county and hospital characteristics, counties with full coverage of smoke-free policies had a reduced rate of 30-day COPD mortality (adjusted incidence rate ratio [IRR]: 0.87, 95% CI: 0.79, 0.96) compared to counties with no policy coverage.

CONCLUSION

Comprehensive smoke-free policies are associated with a reduction in 30-day mortality following hospital admission for COPD. Partial smoke-free legislation is an insufficient preventative measure. These findings have strong implications for hospital policy-makers, suggesting that policy interventions to reduce COPD-related 30-day mortality should include implementing smoke-free policies and public health policy-makers to incentivize comprehensive smokefree policies.

Does community engaged Carnegie status matter for county health rankings in the United States?

BACKGROUND

Community engagement is commonly used to address social inequities. The Carnegie Foundation offers an optional designation for which U.S. colleges and universities may apply to facilitate better educational outcomes through the institutionalization of community engagement. This study is the first to examine the relationship between Carnegie community engaged status and community health outcomes.

METHODS

Ordinal logistic regression was conducted to investigate the association between the presence of a community engaged institution and county health outcomes, including health behaviors, clinical care relating to access and quality, social and economic factors, and physical environment from the 2016 Robert Wood Johnson County Health Rankings and 2015 New England Resource Center for Higher Education Community engaged list. We examined 820 U.S. counties containing a university or college, 240 of which had a community engaged designation.

RESULTS

Findings indicated that the presence of a community-engaged institution was positively associated with Clinical Care (OR = 1.99; 95% CI: 1.09, 3.64). Other county health factors were not similarly associated.

CONCLUSIONS

Our findings suggest that community engagement status may be most relevant for achieving better access and quality of clinical care. More research is needed to explore this association in the U.S. and internationally.

Ever Use of E-Cigarettes Among Adults in the United States: A Cross-Sectional Study of Sociodemographic Factors

E-cigarette use among adolescents is well-documented, but less is known about adult users of e-cigarettes. The purpose of this study was to examine associations between sociodemographic factors and e-cigarette use in a nationally representative sample of adults in the United States. Cross-sectional data from the National Health and Nutrition Examination Survey (NHANES) for years 2015-2016 were analyzed to assess e-cigarette use among 5989 adults aged ≥18 years. Multivariable logistic regression was conducted to examine associations between the sociodemographic exposures of age, sex, race, marital status, education level, employment status, and poverty-income ratio and the outcome of e-cigarette use. The weighted prevalence of ever use of e-cigarettes was 20%. Compared with adults aged ≥55 years, odds of e-cigarette use were 4.77 times (95% confidence interval [CI] = 3.63-6.27) higher among ages 18 to 34 years and 2.16 times (95% CI = 1.49-3.14) higher among ages 35 to 54 years. Higher odds of e-cigarette use were observed among widowed/divorced/separated participants compared with those who were married/living with a partner, among participants with less than high school (odds ratio [OR] = 1.47; 95% CI = 1.08-2.00) or high school/general educational development (GED) education (OR=1.41; 95% CI = 1.12-1.77) compared with those with college degrees/some college, and among those with incomes below the poverty level (OR=1.31; 95% CI = 1.01-1.69) compared with above the poverty level. For non-smokers of conventional cigarettes, higher odds of e-cigarette use were observed among males compared with females, Mexican Americans/Other Hispanics compared with non-Hispanic whites, and non-working participants compared with those who were working. Overall findings indicate that individuals who are widowed/divorced/separated, individuals with lower education, and with incomes below the poverty level are likely to report ever use of e-cigarettes. As increasing evidence demonstrates negative health consequences, e-cigarette initiation may ultimately contribute to additional smoking-related health inequalities even among non-smokers of conventional cigarettes.

Smoke-Free Policies and 30-Day Readmission Rates for Chronic Obstructive Pulmonary Disease

INTRODUCTION

Previous evidence has shown that smoke-free policies reduce hospital admissions due to respiratory causes, but the impact on 30-day readmission has not been determined. As 25 states in the U.S. have not adopted comprehensive smoke-free legislation, it is likely that patients return to an environment that increases risk of a secondary event. The aim of this study is to investigate the impact of smoke-free policies on 30-day readmission rates for adults aged ≥65 years following hospitalization for chronic obstructive pulmonary disease in the U.S.

METHODS

Data from the U.S. Tobacco Control Laws Database, Centers for Medicare and Medicaid Services Hospital Readmissions Reduction Program, American Hospital Association, Area Health Resource File, and U.S. Census Bureau Current Population Survey were merged at the county level for years 2013-2016 and analyzed in 2018. Hierarchical Poisson regression models were utilized to calculate incidence rate ratios to determine the impact of full, partial, and no smoke-free policies on 30-day readmission rates after chronic obstructive pulmonary disease hospitalization.

RESULTS

Multivariable analysis adjusting for both county and hospital characteristics revealed that the presence of full (incidence rate ratio=0.81, 95% CI=0.76, 0.88) and partial (incidence rate ratio=0.87, 95% CI=0.81, 0.92) smoke-free policies were associated with fewer 30-day readmissions for chronic obstructive pulmonary disease-related hospitalizations when compared with counties with no smoke-free policy.

CONCLUSIONS

The implementation of smoke-free policies is an effective measure for reducing 30-day readmissions following hospitalization due to chronic obstructive pulmonary disease, with stronger policies resulting in decreased risk. Efforts to reduce chronic obstructive pulmonary disease-related 30-day readmissions should include the implementation of smoke-free policies.

Associations between food insecurity and prediabetes in a representative sample of U.S. Adults (NHANES 2005-2014)

AIMS

The primary aim of this research was to investigate the association between food insecurity and prediabetes and to identify specific subgroups for early clinical intervention.

METHODS

Cross-sectional data from 25,814 participants were analyzed from the National Health and Nutrition Examination Survey for years 2005-2014. Multivariable logistic regression was used to explore the association between food security status and laboratory-confirmed prediabetes. All models were adjusted for age, sex, race, and body mass index.

RESULTS

When compared to participants with full and marginal food security, participants with low/very food security were 1.35 (95% CI: 1.17-1.55) times more likely to have prediabetes. Younger individuals with low/very low food security had a greater likelihood of prediabetes, 1.50 (95% CI: 1.19-1.81), when compared with their food secure counterparts.

CONCLUSIONS

Food insecurity at any level, whether low or very low, is positively associated with prediabetes in the U.S. general adult population. Food insecure young adults, particularly those aged 20-34 years, should be targeted for early clinical intervention.

Exploring the association between polycyclic aromatic hydrocarbons and diabetes among adults in the United States

OBJECTIVE

To explore the association between polycyclic aromatic hydrocarbons (PAHs) and diabetes and to determine whether effects are heterogeneous when examined by body mass index (BMI).

METHODS

Cross-sectional data from 8664 participants were analyzed from the National Health and Nutrition Examination Survey for years 2005-2014. Multivariable logistic regression was used to explore the association between urinary biomarkers of PAHs and diabetes. All models were adjusted for age, sex, race, poverty-income ratio, and serum cotinine.

RESULTS

When compared with the lowest quintiles of exposure, the highest quintiles of exposure to 2-hydroxynaphthalene, 2-hydroxyfluorene, 9-hydroxyfluorene, 2-hydroxyphenanthrene, and a summed variable of all low molecular weight PAHs (aOR = 1.73; 95% CI: 1.17-2.55) showed a positive association with diabetes. Stratified analyses by BMI indicated that the positive association between PAHs and diabetes was found among both normal weight and obese participants.

CONCLUSIONS

High levels of exposure to PAHs are positively associated with diabetes in the U.S. general population and these effects are modified by BMI. These findings suggest the importance of strong environmental regulation of PAHs to protect population health.

Are US degree-granting institutions associated with better community health determinants and outcomes?

OBJECTIVES

The impact of individual education level on health outcomes is well-established, but the effect of degree-granting institutions on county health rankings (CHRs) is unknown. The objective of this study is to determine if there is an association between the presence of degree-granting institutions and CHRs.

STUDY DESIGN

This is an ecologic study.

METHODS

Data for 3062 counties were derived from the Robert Wood Johnson County Health Rankings and the Integrated Postsecondary Education Data System for year 2016. Ordinal logistic regression was utilized to determine the association between presence of a degree-granting institution and county rankings for health behaviors, health outcomes, clinical care, social and economic factors, and physical environment. All models were adjusted for potential confounding factors including age, sex, race/ethnicity, English language proficiency, and urban/rural location.

RESULTS

The presence of a degree-granting institution was positively associated with CHRs for length of life (odds ratio [OR] = 1.28; 95% confidence interval [CI]: 1.05, 1.58), health behaviors (OR = 1.46; 95% CI: 1.19, 1.79), and clinical care (OR = 1.36; 95% CI: 1.11, 1.67). Counties with the highest rankings in one health category were more likely to score in the highest rankings for other health categories.

CONCLUSIONS

These findings suggest that degree-granting institutions are associated with CHRs. Partnerships between public health agencies and degree-granting institutions are recommended to improve population health.

Incidence and case-fatality of varicella-zoster virus infection among pediatric cancer patients in developing countries

Limited evidence is available about varicella-zoster virus (VZV) infection among pediatric cancer patients in developing countries, which raises questions about the generalizability of VZV vaccine recommendations for pediatric cancer patients (derived from developed countries) to these settings. We assessed the incidence and case-fatality of VZV infection at three institutions in developing countries (Argentina, Mexico, and Nicaragua). Individuals eligible for our study were aged <20 years and actively receiving cancer-directed therapy. We estimated a summary incidence rate (IR) and case-fatality risk with corresponding 95 % confidence limits (CL) of VZV infection across sites using random-effects models. Our study population comprised 511 pediatric cancer patients, of whom 64 % were aged <10 years, 58 % were male, and 58 % were diagnosed with leukemia. We observed a total of 10 infections during 44,401 person-days of follow-up across the 3 sites (IR = 2.3, 95 % CL 1.2, 4.2). The summary case-fatality risk was 10 % (95 % CL 1.4, 47 %) based on one death.

CONCLUSION

Our results suggest low incidence and case-fatality of VZV infections among pediatric cancer patients in three developing countries. VZV vaccine recommendations for pediatric cancer patients in developed countries may be generalizable to developing countries.

WHAT IS KNOWN

• Current recommendations, based on evidence from pediatric cancer patients in developed countries, contraindicate varicella-zoster virus (VZV) vaccination until completion of cancer-directed therapy and recovery of immune function. • The generalizability of these VZV vaccine recommendations to pediatric cancer patients in developing countries is unknown because of limited information about the incidence and case-fatality of VZV in these settings. What is New: • Our results suggest low incidence and case-fatality of VZV infections among pediatric cancer patients in three developing countries. • VZV vaccine recommendations based on evidence from pediatric cancer patients in developed countries may be generalizable to pediatric cancer patients in developing countries.

Long-term follow-up for incident cirrhosis among pediatric cancer survivors with hepatitis C virus infection

BACKGROUND

Pediatric cancer patients who received blood transfusions were potentially exposed to hepatitis C virus (HCV) prior to second-generation HCV screening of blood products in 1992. Limited evidence is available about long-term incident cirrhosis in this population.

OBJECTIVES

We aimed to estimate the overall and sex-specific incidence of cirrhosis among HCV-seropositive survivors of pediatric cancer.

STUDY DESIGN

We identified 113HCV-seropositive pediatric cancer patients treated at St. Jude Children's Research Hospital between 1962 and 1997, who survived ≥5 years post-diagnosis, and were followed through 2014. Our outcome was cirrhosis determined by liver biopsy or diagnostic imaging. We used a competing-risk framework to estimate the overall and sex-specific cumulative incidence and 95% confidence limits (CL) of cirrhosis at 10-year follow-up intervals.

RESULTS

The median duration of follow-up was 30 years (interquartile range=28-36) post-cancer diagnosis. Cumulative incidence of cirrhosis increased at each 10-year interval from 0% after 10 years to 13% after 40 years (Ptrend<0.001). The median age at diagnosis of cirrhosis was 30 years (interquartile range=24-38). We observed a linear trend in incidence for males (Ptrend<0.001), with a cumulative incidence of 18% (95% CL: 6.1%, 34%) after 40 years. The cumulative incidence for females was 6.5% (95% CL: 0.42%, 26%) after 40 years, but we did not observe a linear trend (Ptrend=0.99).

CONCLUSION

Our results suggest that the incidence of cirrhosis is similar between HCV-seropositive pediatric cancer survivors and the general population given similar duration of follow-up, but survivors may be diagnosed with cirrhosis at an earlier age.

The Impact of Vaccine Concerns on Racial/Ethnic Disparities in Influenza Vaccine Uptake Among Health Care Workers

OBJECTIVES

We explored whether collective concerns about the safety, effectiveness, and necessity of influenza vaccines mediate racial/ethnic disparities in vaccine uptake among health care workers (HCWs).

METHODS

We used a self-administered Web-based survey to assess race/ethnicity (exposure), concerns about influenza vaccination (mediator; categorized through latent class analysis), and influenza vaccine uptake (outcome) for the 2012 to 2013 influenza season among HCWs at St. Jude Children's Research Hospital in Memphis, Tennessee. We used mediation analysis to estimate prevalence ratios (PRs) and 95% confidence intervals (CIs) for the total, direct, and indirect effects of race/ethnicity on influenza vaccine uptake.

RESULTS

Non-Hispanic Blacks had lower influenza vaccine uptake than non-Hispanic Whites (total effect: PR = 0.87; 95% CI = 0.75, 0.99), largely mediated by high concern about influenza vaccines (natural indirect effect: PR = 0.89; 95% CI = 0.84, 0.94; controlled direct effect: PR = 0.98; 95% CI = 0.85, 1.1). Hispanic and Asian HCWs had modestly lower uptake than non-Hispanic Whites, also mediated by high concern about influenza vaccines.

CONCLUSIONS

Racial/ethnic disparities among HCWs could be attenuated if concerns about the safety, effectiveness, and necessity of influenza vaccines were reduced.

Socioeconomic differentials in the immediate mortality effects of the national Irish smoking ban

BACKGROUND

Consistent evidence has demonstrated that smoking ban policies save lives, but impacts on health inequalities are uncertain as few studies have assessed post-ban effects by socioeconomic status (SES) and findings have been inconsistent. The aim of this study was to assess the effects of the national Irish smoking ban on ischemic heart disease (IHD), stroke, and chronic obstructive pulmonary disease (COPD) mortality by discrete and composite SES indicators to determine impacts on inequalities.

METHODS

Census data were used to assign frequencies of structural and material SES indicators to 34 local authorities across Ireland with a 2000-2010 study period. Discrete indicators were jointly analysed through principal component analysis to generate a composite index, with sensitivity analyses conducted by varying the included indicators. Poisson regression with interrupted time-series analysis was conducted to examine monthly age and gender-standardised mortality rates in the Irish population, ages ≥35 years, stratified by tertiles of SES indicators. All models were adjusted for time trend, season, influenza, and smoking prevalence.

RESULTS

Post-ban mortality reductions by structural SES indicators were concentrated in the most deprived tertile for all causes of death, while reductions by material SES indicators were more equitable across SES tertiles. The composite indices mirrored the results of the discrete indicators, demonstrating that post-ban mortality decreases were either greater or similar in the most deprived when compared to the least deprived for all causes of death.

CONCLUSIONS

Overall findings indicated that the national Irish smoking ban reduced inequalities in smoking-related mortality. Due to the higher rates of smoking-related mortality in the most deprived group, even equitable reductions across SES tertiles resulted in decreases in inequalities. The choice of SES indicator was influential in the measurement of effects, underscoring that a differentiated analytical approach aided in understanding the complexities in which structural and material factors influence mortality.

Reductions in cardiovascular, cerebrovascular, and respiratory mortality following the national irish smoking ban: interrupted time-series analysis

Background

Previous studies have shown decreases in cardiovascular mortality following the implementation of comprehensive smoking bans. It is not known whether cerebrovascular or respiratory mortality decreases post-ban. On March 29, 2004, the Republic of Ireland became the first country in the world to implement a national workplace smoking ban. The aim of this study was to assess the effect of this policy on all-cause and cause-specific, non-trauma mortality.

Methods

A time-series epidemiologic assessment was conducted, utilizing Poisson regression to examine weekly age and gender-standardized rates for 215,878 non-trauma deaths in the Irish population, ages ≥35 years. The study period was from January 1, 2000, to December 31, 2007, with a post-ban follow-up of 3.75 years. All models were adjusted for time trend, season, influenza, and smoking prevalence.

Results

Following ban implementation, an immediate 13% decrease in all-cause mortality (RR: 0.87; 95% CI: 0.76–0.99), a 26% reduction in ischemic heart disease (IHD) (RR: 0.74; 95% CI: 0.63–0.88), a 32% reduction in stroke (RR: 0.68; 95% CI: 0.54–0.85), and a 38% reduction in chronic obstructive pulmonary disease (COPD) (RR: 0.62; 95% CI: 0.46–0.83) mortality was observed. Post-ban reductions in IHD, stroke, and COPD mortalities were seen in ages ≥65 years, but not in ages 35–64 years. COPD mortality reductions were found only in females (RR: 0.47; 95% CI: 0.32–0.70). Post-ban annual trend reductions were not detected for any smoking-related causes of death. Unadjusted estimates indicate that 3,726 (95% CI: 2,305–4,629) smoking-related deaths were likely prevented post-ban. Mortality decreases were primarily due to reductions in passive smoking.

Conclusions

The national Irish smoking ban was associated with immediate reductions in early mortality. Importantly, post-ban risk differences did not change with a longer follow-up period. This study corroborates previous evidence for cardiovascular causes, and is the first to demonstrate reductions in cerebrovascular and respiratory causes.