Misuse of Prescribed and Nonprescribed Substances Among U.S. Cancer Survivors.

BACKGROUND: Substance misuse is common among cancer survivors and can negatively impact cancer outcomes. METHODS: We conducted a cross-sectional study using National Survey on Drug Use and Health data for 2015 to 2020. We included adult respondents with a history of solid tumor cancer. We calculated the weighted prevalence and corresponding SEs (both expressed as percentages) of substance (alcohol, opioid, sedative, stimulant, other) misuse for respondents with any history of solid tumor cancer and, in secondary analyses, respondents diagnosed with cancer in the prior 12 months. RESULTS: The study included 6,101 respondents with any history of cancer, 1,437 diagnosed in the prior 12 months. Alcohol was the most commonly misused substance. The average prevalence of alcohol misuse was 14.4% (SE 0.60%) across cancer types; it was markedly more common among people with a history or cervical (24.2% [3.0%]) or head and neck cancer (27.4% [7.1%]). The next most common form of substance misuse was opioid misuse (average prevalence: 2.7% [0.25%]). As with alcohol misuse, the prevalence of opioid misuse was higher among those with a lifetime history of cervical cancer (5% [1%]) or head and neck cancer (5% [3%]). Results were generally consistent among cancer survivors diagnosed in the prior 12 months. CONCLUSIONS: There is a clear opportunity to address substance misuse-particularly alcohol misuse-among cancer survivors. Such efforts should focus on populations with a high prevalence of substance misuse (e.g., cervical and head and neck cancer survivors) and have strong potential to improve cancer-specific and overall health outcomes.

ACO leakage among gynecologic cancer patients: Incidence, predictors, and impact on annual Medicare expenditure.

OBJECTIVE: To examine patterns of Accountable Care Organizations (ACO) leakage, the receipt of healthcare by ACO-assigned patients from institutions outside assigned ACO network, among patients with gynecologic cancer. ACO leakage was estimated as rates of patients seeking care external to their ACO assignment. Factors associated with ACO leakage were identified and cost differences within the first year of cancer diagnosis described. METHODS: Medicare 5% data (2013-2017) was used to quantify rates of leakage among gynecologic cancer patients with stable ACO assignment. Crude and multivariable adjusted risk ratios of ACO leakage risk factors were estimated using log-binomial regression models. Overall and cancer-specific spending differences by ACO leakage status were compared using Wilcoxon rank-sum test. RESULTS: Overall incidence of ACO leakage was 28.1% with highest leakage for outpatient care and uterine cancer patients. ACO leakage risk was 56% higher among Black relative to White patients, and 77% more for those in higher relative to lowest quintiles of median household income. Leakage decreased by 3% and 8% with each unit increase in ACO size and number of subspecialists, respectively. Healthcare costs were 19.5% higher for leakage patients. CONCLUSIONS: ACO leakage rates among gynecologic cancer patients was overall modest, with some regional and temporal variation, higher leakage for certain subgroups and substantially higher Medicare spending in inpatient and outpatient settings for patients with ACO leakage. These findings identify targets for further investigations and strategies to encourage oncologists to participate in ACOs and prevent increased health care costs associated with use of non-ACO providers.

Frailty in patients with ovarian cancer and the role of healthcare access, race, and ethnicity.

OBJECTIVE: Ovarian cancer has poor 5-year survival, particularly among non-Hispanic (NH) Black patients. Efforts to identify patients at high-risk of functional limitations and frailty may improve outcomes. In this study, we examined how healthcare access (HCA) and race/ethnicity relate to frailty among patients with ovarian cancer. METHODS: We identified Hispanic, NH Black, and NH White patients diagnosed at ages ≥6 5 years with ovarian cancer between 2009 and 2015 using SEER-Medicare. Log-binomial regression was used to estimate prevalence ratios (PRs) and 95% confidence intervals (CIs) for the association between HCA and race/ethnicity with pre- or post-diagnosis frailty, adjusting for age and comorbidities. RESULTS: A total of 6041 patients with ovarian cancer were included, including 91.8% NH White, 6.6% NH Black, and 1.7% Hispanic. Pre-diagnosis, 14.7% of patients were defined as frail (NH White: 14.3%; NH Black: 17.9%; Hispanic: 20.8%). Post-diagnosis, frailty prevalence increased to 58.8% (NH White: 58.2%; NH Black: 65.2%; Hispanic: 70.2%). No statistically significant associations were observed between race/ethnicity and pre- or post-diagnosis frailty in fully adjusted models. After adjustment for patient characteristics and healthcare accessibility and availability, higher healthcare affordability was associated with a decreased prevalence of pre-diagnosis frailty (PR: 0.91, 95% CI: 0.8 5, 0.98). CONCLUSIONS: Patients with ovarian cancer have a high prevalence of frailty after diagnosis, particularly NH Black and Hispanic patients. Improving healthcare affordability may prevent or help manage frailty in Medicare patients, improve receipt of cancer treatment, and increase cancer survival.

Identifying predictors of translocation success in rare plant species.

The fundamental goal of a rare plant translocation is to create self-sustaining populations with the evolutionary resilience to persist in the long term. Yet, most plant translocation syntheses focus on a few factors influencing short-term benchmarks of success (e.g., survival and reproduction). Short-term benchmarks can be misleading when trying to infer future growth and viability because the factors that promote establishment may differ from those required for long-term persistence. We assembled a large (n = 275) and broadly representative data set of well-documented and monitored (7.9 years on average) at-risk plant translocations to identify the most important site attributes, management techniques, and species' traits for six life-cycle benchmarks and population metrics of translocation success. We used the random forest algorithm to quantify the relative importance of 29 predictor variables for each metric of success. Drivers of translocation outcomes varied across time frames and success metrics. Management techniques had the greatest relative influence on the attainment of life-cycle benchmarks and short-term population trends, whereas site attributes and species' traits were more important for population persistence and long-term trends. Specifically, large founder sizes increased the potential for reproduction and recruitment into the next generation, whereas declining habitat quality and the outplanting of species with low seed production led to increased extinction risks and a reduction in potential reproductive output in the long-term, respectively. We also detected novel interactions between some of the most important drivers, such as an increased probability of next-generation recruitment in species with greater seed production rates, but only when coupled with large founder sizes. Because most significant barriers to plant translocation success can be overcome by improving techniques or resolving site-level issues through early intervention and management, we suggest that by combining long-term monitoring with adaptive management, translocation programs can enhance the prospects of achieving long-term success.

Identificación de pronosticadores del éxito de reubicación en especies raras de plantas Resumen El objetivo fundamental de la reubicación de plantas raras es la creación de poblaciones autosuficientes con resiliencia evolutiva que persistan a la larga. De todas maneras, la mayoría de las síntesis de estas reubicaciones se enfocan en unos cuantos factores que influyen sobre los parámetros a corto plazo del éxito (supervivencia y reproducción). Los parámetros a corto plazo pueden ser engañosos si se intenta inferir el crecimiento y la viabilidad en el futuro ya que los factores que promueven el establecimiento pueden diferir de aquellos requeridos para la persistencia a largo plazo. Ensamblamos un conjunto grande de datos representativos en general (n = 275) de las reubicaciones de plantas en riesgo bien documentadas y monitoreadas (7.9 años en promedio) para identificar los atributos de sitio más importantes, las técnicas de manejo y los rasgos de las especies para seis parámetros de ciclos de vida y medidas poblacionales del éxito de reubicación. Usamos el algoritmo de bosque aleatorio para cuantificar la importancia relativa de las 29 variables de pronosticadores para cada medida del éxito. Los factores en los resultados de las reubicaciones variaron con los marcos temporales y las medidas de éxito. Las técnicas de manejo tuvieron la mayor influencia relativa sobre la obtención de parámetros de ciclos de vida y tendencias poblacionales a corto plazo, mientras que los atributos de sitio y los rasgos de la especie fueron más importantes para la persistencia poblacional y las tendencias a largo plazo. En específico, las grandes cantidades de fundadores incrementaron el potencial de reproducción y reclutamiento de la siguiente generación, mientras que la declinación de la calidad del hábitat incrementó el riesgo de extinción y el trasplante de especies con baja producción de semillas redujo el rendimiento del potencial reproductivo a la larga. También detectamos interacciones novedosas entre algunos de los factores más importantes, como el aumento en la probabilidad del reclutamiento en la siguiente generación en especies con tasas mayores de producción de semillas, pero sólo cuando se emparejó con grandes cantidades de fundadores. Ya que las barreras más significativas para el éxito de la reubicación de plantas pueden superarse al mejorar las técnicas o resolver los temas a nivel de sitio por medio de un manejo y una intervención temprana, sugerimos que con la combinación del monitoreo a largo plazo con el manejo adaptativo los programas de reubicación pueden aumentar el prospecto de lograr el éxito a largo plazo.

Transition to surgery after pessary among female Medicare beneficiaries with pelvic organ prolapse.

BACKGROUND: The American College of Obstetricians and Gynecologists recommends offering a vaginal pessary to women seeking treatment of pelvic organ prolapse. However, single-institution series have suggested that a sizable proportion of women fitted with a pessary will transition to surgery within the first year. OBJECTIVE: This study aimed to estimate the proportion of female US Medicare beneficiaries with pelvic organ prolapse who undergo surgery after pessary fitting, to describe the median time to surgery from pessary fitting, and to identify factors associated with the transition from pessary to surgery. STUDY DESIGN: The Medicare 5% Limited Data Set was queried from 2011 to 2016 for women aged ≥65 years with a diagnosis of prolapse who underwent pessary fitting. Cases with at least 3 years of follow-up in the Medicare Data Set were followed longitudinally for the primary outcome of surgery for prolapse. The cumulative incidence of prolapse surgery following index pessary fitting was calculated. Characteristics of women who underwent surgery and those who did not were compared using time-varying Cox regression analysis. RESULTS: Among 2032 women fitted with a pessary, 608 underwent surgery within 7 years. The median time to surgery was 496 days (interquartile range, 187-1089 days). The cumulative incidence of prolapse surgery was 12.2% at 1 year and 30.9% at 7 years. After adjusting for covariates, factors significantly associated with the transition to surgery included previous prolapse surgery (adjusted hazard ratio, 1.50; 1.09-2.07) and a diagnosis of urinary incontinence at the time of pessary fitting (adjusted hazard ratio, 1.20; 0.62-0.99). Factors associated with a lower hazard of surgery included age (adjusted hazard ratio, 0.96 per year; 95% confidence interval, 0.95-0.97), dual Medicare/Medicaid eligibility (adjusted hazard ratio, 0.75; 95% confidence interval, 0.56-1.00), and pessary fitting by a nongynecologist (adjusted hazard ratio, 0.78; 95% confidence interval, 0.62-0.99). CONCLUSION: In this population of Medicare beneficiaries, within 7 years of pessary fitting, almost one-third of women aged >65 years underwent surgery for prolapse. These results add to our current understanding of the demographics of pessary use in an older population and may aid in counseling older patients presenting for treatment of symptomatic pelvic organ prolapse.

Vaginal Complications after Cystectomy: Results from a Medicare Sample.

PURPOSE: Cystectomy with a vaginal-sparing approach may be associated with unique complications specific to the female population. The objective of this study was to estimate the incidence of vaginal complications (defined to include vaginal prolapse, vaginal fistula, dyspareunia and vaginal cuff dehiscence/evisceration) after cystectomy and to determine risk factors for these complications. MATERIALS AND METHODS: Women 65 years or older undergoing cystectomy for any indication were identified by procedural codes in the Medicare Limited Data Set 5% sample from January 1, 2011 to December 31, 2017. Patients experiencing a vaginal complication after cystectomy were compared to those who did not. Demographic and biological factors that could increase likelihood of complications were identified and time to development of complications determined. Cumulative incidence was calculated using cumulative incidence function. Multivariable cause-specific Cox proportional hazards model assessed risk factors for vaginal complications. RESULTS: In all, 481 women undergoing cystectomy were identified during the study period, and 37.2% were younger than 70 years old. The majority (378, 79%) had bladder cancer, and 401 (83.4%) underwent an incontinent conduit or catheterizable channel diversion. Within 2 years of cystectomy, 93 patients (19.5%) had 1 or more complications on record. Vaginal cuff dehiscence had the highest cumulative incidence, occurring in 49 patients (10.2%). Over the entire study period (2011-2017), 102 women (21.2%) were diagnosed with a vaginal complication, and 27 (5.6%) received an intervention. CONCLUSIONS: Among women who undergo cystectomy, vaginal complications occur at rates higher than expected with over 20% of women experiencing a complication and over a quarter of those diagnosed undergoing intervention.

Adverse outcomes after minimally invasive surgery for pelvic organ prolapse in women 65 years and older in the United States.

INTRODUCTION AND HYPOTHESIS: To describe complications at the time of surgery, 90-day readmission and 1-year reoperation rates after minimally invasive pelvic organ prolapse (POP) in women > 65 years of age in the US using Medicare 5% Limited Data Set (LDS) Files. METHODS: Medicare is a federally funded insurance program in the US for individuals 65 and older. Currently, 98% of individuals over the age of 65 in the US are covered by Medicare. We identified women undergoing minimally invasive POP surgery, defined as laparoscopic or vaginal surgery, in the inpatient and outpatient settings from 2011-2017. Patient and surgical characteristics as well as adverse events were abstracted. We used logistic regression for complications at index surgery and Cox proportional hazards regression models for time to readmission and time to reoperations. RESULTS: A total of 11,779 women met inclusion criteria. The mean age was 72 (SD ± 8) years; the majority were White (91%). Most procedures were vaginal (76%) and did not include hysterectomy (68%). The rate of complications was 12%; vaginal hysterectomy (aOR 2.4, 95% CI 2.2-2.7) was the factor most strongly associated with increased odds of complications. The 90-day readmission rate was 7.3%. The most common reason for readmission was infection (2.0%), three quarters of which were urinary tract infections. Medicaid eligibility (aHR 1.5, 95% CI 1.3-1.8) and concurrent sling procedures (aHR 1.2, 95% CI 1.04-1.4) were associated with a higher risk of 90-day readmission. The 1-year reoperation rate was 4.5%. The most common type of reoperation was a sling procedure (1.8%). Obliterative POP surgery (aHR 0.6, 95% CI 0.4-0.9) was associated with a lower risk of reoperation than other types of surgery. CONCLUSIONS: US women 65 years and older who are also eligible to receive Medicaid are at higher risk of 90-day readmission following minimally invasive surgery for POP with the most common reason for readmission being UTI.

Identifying blood pressure loci whose effects are modulated by multiple lifestyle exposures.

Although multiple lifestyle exposures simultaneously impact blood pressure (BP) and cardiovascular health, most analysis so far has considered each single lifestyle exposure (e.g., smoking) at a time. Here, we exploit gene-multiple lifestyle exposure interactions to find novel BP loci. For each of 6,254 Framingham Heart Study participants, we computed lifestyle risk score (LRS) value by aggregating the risk of four lifestyle exposures (smoking, alcohol, education, and physical activity) on BP. Using the LRS, we performed genome-wide gene-environment interaction analysis in systolic and diastolic BP using the joint 2 degree of freedom (DF) and 1 DF interaction tests. We identified one genome-wide significant (p < 5 × 10-8 ) and 11 suggestive (p < 1 × 10-6 ) loci. Gene-environment analysis using single lifestyle exposures identified only one of the 12 loci. Nine of the 12 BP loci detected were novel. Loci detected by the LRS were located within or nearby genes with biologically plausible roles in the pathophysiology of hypertension, including KALRN, VIPR2, SNX1, and DAPK2. Our results suggest that simultaneous consideration of multiple lifestyle exposures in gene-environment interaction analysis can identify additional loci missed by single lifestyle approaches.

Accurate forest projections require long-term wood decay experiments because plant trait effects change through time.

Whether global change will drive changing forests from net carbon (C) sinks to sources relates to how quickly deadwood decomposes. Because complete wood mineralization takes years, most experiments focus on how traits, environments and decomposer communities interact as wood decay begins. Few experiments last long enough to test whether drivers change with decay rates through time, with unknown consequences for scaling short-term results up to long-term forest ecosystem projections. Using a 7 year experiment that captured complete mineralization among 21 temperate tree species, we demonstrate that trait effects fade with advancing decay. However, wood density and vessel diameter, which may influence permeability, control how decay rates change through time. Denser wood loses mass more slowly at first but more quickly with advancing decay, which resolves ambiguity about the after-life consequences of this key plant functional trait by demonstrating that its effect on decay depends on experiment duration and sampling frequency. Only long-term data and a time-varying model yielded accurate predictions of both mass loss in a concurrent experiment and naturally recruited deadwood structure in a 32-year-old forest plot. Given the importance of forests in the carbon cycle, and the pivotal role for wood decay, accurate ecosystem projections are critical and they require experiments that go beyond enumerating potential mechanisms by identifying the temporal scale for their effects.

Effects of life history and reproduction on recruitment time lags in reintroductions of rare plants.

Reintroductions are important components of conservation and recovery programs for rare plant species, but their long-term success rates are poorly understood. Previous reviews of plant reintroductions focused on short-term (e.g., ≤3 years) survival and flowering of founder individuals rather than on benchmarks of intergenerational persistence, such as seedling recruitment. However, short-term metrics may obscure outcomes because the unique demographic properties of reintroductions, including small size and unstable stage structure, could create lags in population growth. We used time-to-event analysis on a database of unusually well-monitored and long-term (4-28 years) reintroductions of 27 rare plant species to test whether life-history traits and population characteristics of reintroductions create time-lagged responses in seedling recruitment (i.e., recruitment time lags [RTLs]), an important benchmark of success and indicator of persistence in reintroduced populations. Recruitment time lags were highly variable among reintroductions, ranging from <1 to 17 years after installation. Recruitment patterns matched predictions from life-history theory with short-lived species (fast species) exhibiting consistently shorter and less variable RTLs than long-lived species (slow species). Long RTLs occurred in long-lived herbs, especially in grasslands, whereas short RTLs occurred in short-lived subtropical woody plants and annual herbs. Across plant life histories, as reproductive adult abundance increased, RTLs decreased. Highly variable RTLs were observed in species with multiple reintroduction events, suggesting local processes are just as important as life-history strategy in determining reintroduction outcomes. Time lags in restoration outcomes highlight the need to scale success benchmarks in reintroduction monitoring programs with plant life-history strategies and the unique demographic properties of restored populations. Drawing conclusions on the long-term success of plant reintroduction programs is premature given that demographic processes in species with slow life-histories take decades to unfold.

Efectos de la Historia de Vida y la Reproducción sobre las Demoras en el Tiempo de Reclutamiento en la Reintroducción de Plantas Raras Resumen Las reintroducciones son componentes importantes de los programas de conservación y recuperación de especies raras de plantas, pero las tasas de éxito a largo plazo cuentan con muy poco entendimiento. Las revisiones previas de las reintroducciones de plantas se han enfocado en la supervivencia a corto plazo (p. ej.: ≤ 3 años) y en el florecimiento de individuos fundadores en lugar de enfocarse en puntos de referencia para la persistencia inter-generacional, como el reclutamiento de plántulas. Sin embargo, las medidas a corto plazo pueden ocultar los resultados ya que las propiedades demográficas únicas de las reintroducciones, incluyendo el menor tamaño y la estructura inestable de estadio, podrían crear demoras en el crecimiento poblacional. Usamos un análisis de tiempo-para-evento en una base de datos de reintroducciones inusualmente bien monitoreadas y de largo plazo (4-28 años) de 27 especies raras de plantas para probar si los atributos de la historia de vida y las características poblacionales de la reintroducción crean respuestas con demoras temporales en el reclutamiento de plántulas (es decir, demoras temporales en el reclutamiento), un punto de referencia importante para el éxito y un indicador de la persistencia en poblaciones reintroducidas. Las demoras temporales de reclutamiento (RTLs, en inglés) fueron muy variables entre las reintroducciones, abarcando desde <1 hasta 17 años después de la instalación. Los patrones de reclutamiento se acoplaron a las predicciones de la teoría de historias de vida, donde las especies de vida corta (especies rápidas) exhibieron RTLs consistentemente más cortas y menos variables que las especies de vida larga (especies lentas). Las RTLs largas ocurrieron en hierbas de vida larga, especialmente en los pastizales, mientras que las RTLs cortas ocurrieron en plantas leñosas subtropicales de vida corta y en hierbas anuales. En todas las historias de vida de las plantas, conforme incrementó la abundancia de adultos reproductivos, las RTLs disminuyeron. Se observaron RTLs altamente variables en las especies con eventos de reintroducción múltiples, lo que sugiere que los procesos locales son igual de importantes que la estrategia de historia de vida para determinar los resultados de las reintroducciones. Las demoras temporales en los resultados de restauración resaltan la necesidad de poner a escala los puntos de referencia de éxito en los programas de monitoreo de reintroducciones que tengan estrategias de historia de vida de las plantas y las propiedades demográficas únicas de las poblaciones restauradas. La obtención de conclusiones sobre el éxito a largo plazo de los programas de reintroducción de plantas es algo prematuro ya que los procesos demográficos de especies con historias de vida lentas tardan décadas en desarrollarse.

The Promise of Selecting Individuals from the Extremes of Exposure in the Analysis of Gene-Physical Activity Interactions.

BACKGROUND: Dichotomization using the lower quartile as cutoff is commonly used for harmonizing heterogeneous physical activity (PA) measures across studies. However, this may create misclassification and hinder discovery of new loci. OBJECTIVES: This study aimed to evaluate the performance of selecting individuals from the extremes of the exposure (SIEE) as an alternative approach to reduce such misclassification. METHOD: For systolic and diastolic blood pressure in the Framingham Heart Study, we performed a genome-wide association study with gene-PA interaction analysis using three PA variables derived by SIEE and two other dichotomization approaches. We compared number of loci detected and overlap with loci found using a quantitative PA variable. In addition, we performed simulation studies to assess bias, false discovery rates (FDR), and power under synergistic/antagonistic genetic effects in exposure groups and in the presence/absence of measurement error. RESULTS: In the empirical analysis, SIEE's performance was neither the best nor the worst. In most simulation scenarios, SIEE was consistently outperformed in terms of FDR and power. Particularly, in a scenario characterized by antagonistic effects and measurement error, SIEE had the least bias and highest power. CONCLUSION: SIEE's promise appears limited to detecting loci with antagonistic effects. Further studies are needed to evaluate SIEE's full advantage.

Linking wood traits to vital rates in tropical rainforest trees: Insights from comparing sapling and adult wood.

PREMISE OF THE STUDY: Wood density is the top predictor of growth and mortality rates (vital rates) but with modest explanatory power at best. Stronger links to vital rates are expected if wood density is decomposed into its anatomical properties at sapling and adult stages, since saplings and adults differ in wood traits and vital rates. We examined whether anatomical determinants of wood density and strength of the relationship between wood traits and vital rates shift between saplings and adults. METHODS: Using wood segments from near pith (sapling) and near bark (adult) for 20 tree species (three adults each) from Barro Colorado Island, Panama, we quantified wood traits. Vital rates for saplings and adults were obtained from an earlier study. KEY RESULTS: Anatomical predictors of wood density were similar for sapling and adult wood, with wood density variation largely explained by fiber lumen area and fiber wall fraction. In sapling wood only, growth rates decreased with fiber wall fraction and increased with fiber lumen area, while mortality rates increased with vessel area but decreased with fiber wall fraction and vessel density. CONCLUSIONS: Wood traits of sapling trees provide functional insight into the growth-mortality tradeoff. Sapling wood with relatively large fiber lumen area and wide vessels, enabling faster hydraulic transport but less mechanical strength, is associated with fast growth and high mortality. Sapling wood with relatively more fiber wall and many narrow vessels, enabling greater mechanical strength but slower hydraulic transport, is associated with slow growth and low mortality.

Selective logging: do rates of forest turnover in stems, species composition and functional traits decrease with time since disturbance? - A 45 year perspective.

Selective logging, the targeted harvesting of timber trees in a single cutting cycle, is globally rising in extent and intensity. Short-term impacts of selective logging on tropical forests have been widely investigated, but long-term effects on temporal dynamics of forest structure and composition are largely unknown. Understanding these long-term dynamics will help determine whether tropical forests are resilient to selective logging and inform choices between competing demands of anthropogenic use versus conservation of tropical forests. Forest dynamics can be studied within the framework of succession theory, which predicts that temporal turnover rates should decline with time since disturbance. Here, we investigated the temporal dynamics of a tropical forest in Kibale National Park, Uganda over 45 years following selective logging. We estimated turnover rates in stems, species composition, and functional traits (wood density and diameter at breast height), using observations from four censuses in 1989, 1999, 2006, and 2013, of stems ≥ 10 cm diameter within 17 unlogged and 9 logged 200 × 10 m vegetation plots. We used null models to account for interdependencies among turnover rates in stems, species composition, and functional traits. We tested predictions that turnover rates should be higher and decrease with increasing time since the selective logging event in logged forest, but should be less temporally variable in unlogged forest. Overall, we found higher turnover rates in logged forest for all three attributes, but turnover rates did not decline through time in logged forest and was not less temporally variable in unlogged forest. These results indicate that successional models that assume recovery to pre-disturbance conditions are inadequate for predicting the effects of selective logging on the dynamics of the tropical forest in Kibale. Selective logging resulted in persistently higher turnover rates, which may compromise the carbon storage capacity of Kibale's forest. Selective logging effects may also interact with effects from other global trends, potentially causing major long-term shifts in the dynamics of tropical forests. Similar studies in tropical forests elsewhere will help determine the generality of these conclusions. Ultimately, the view that selective logging is a benign approach to the management of tropical forests should be reconsidered in the light of studies of the effects of this practice on long-term forest dynamics.

Radial variation in wood specific gravity of tropical tree species differing in growth-mortality strategies.

UNLABELLED: • PREMISE OF THE STUDY: Wood specific gravity (WSG) mediates an interspecific trade-off between growth and mortality and is a key measure for estimating carbon stocks. Most studies use species mean values to represent WSG, despite variation at different levels of biological organization. We examined sources of variation in WSG across four nested scales (segments within cores, cores within trees, trees within species, and species), compared the pattern of radial variation in WSG among species differing in growth strategies, and investigated the effect of WSG radial variation on aboveground biomass estimates.• METHODS: We took two perpendicular cores from six individuals each of 20 tropical tree species representing a broad range of mean WSGs and growth-mortality strategies in a lowland tropical moist forest in Panama. Cores were divided into 1-cm segments, and WSG was determined for each segment.• KEY RESULTS: The bulk of the total variance in WSG was dominated by interspecies variation (88%), whereas variation due to measurement error, segments within cores, and cores within trees (8%) was minimal. Radial variation in WSG, defined as change in WSG with increasing distance from the pith, was significant in 17 of the 20 species and included significant monotonic increases in 6 species and nonmonotonic patterns in 11 species. Radial variation in WSG resulted in a small but significant bias in aboveground biomass estimates.• CONCLUSIONS: Radial variation in WSG is related to a species' growth strategy and, though minimal compared with interspecific variation in WSG, can cause a downward bias when not incorporated into aboveground biomass estimates.

Substance Use Disorders Among US Adult Cancer Survivors.

Importance: Some individuals are predisposed to cancer based on their substance use history, and others may use substances to manage cancer-related symptoms. Yet the intersection of substance use disorder (SUD) and cancer is understudied. Because SUD may affect and be affected by cancer care, it is important to identify cancer populations with a high prevalence of SUD, with the goal of guiding attention and resources toward groups and settings where interventions may be needed. Objective: To describe the cancer type-specific prevalence of SUD among adult cancer survivors. Design, Setting, and Participants: This cross-sectional study used data from the annually administered National Survey on Drug Use and Health (NSDUH) for 2015 through 2020 to identify adults with a history of solid tumor cancer. Substance use disorder was defined as meeting at least 1 of 4 Diagnostic and Statistical Manual of Mental Disorders (Fourth Edition) criteria for abuse or at least 3 of 6 criteria for dependence. Main Outcomes and Measures: Per NSDUH guidelines, we made adjustments to analysis weights by dividing weights provided in the pooled NSDUH data sets by the number of years of combined data (eg, 6 for 2015-2020). The weighted prevalence and corresponding SEs (both expressed as percentages) of active SUD (ie, within the past 12 months) were calculated for respondents with any lifetime history of cancer and, in secondary analyses, respondents diagnosed with cancer within 12 months prior to taking the survey. Data were analyzed from July 2022 to June 2023. Results: This study included data from 6101 adult cancer survivors (56.91% were aged 65 years or older and 61.63% were female). Among lifetime cancer survivors, the prevalence of active SUD was 3.83% (SE, 0.32%). Substance use disorder was most prevalent in survivors of head and neck cancer (including mouth, tongue, lip, throat, and pharyngeal cancers; 9.36% [SE, 2.47%]), esophageal and gastric cancer (9.42% [SE, 5.51%]), cervical cancer (6.24% [SE, 1.41%]), and melanoma (6.20% [SE, 1.34%]). Alcohol use disorder was the most common SUD (2.78% [SE, 0.26%]) overall and in survivors of head and neck cancer, cervical cancer, and melanoma. In survivors of esophageal and gastric cancers, cannabis use disorder was the most prevalent SUD (9.42% [SE, 5.51%]). Among respondents diagnosed with cancer in the past 12 months, the overall prevalence of active SUD was similar to that in the lifetime cancer survivor cohort (3.81% [SE, 0.74%]). However, active SUD prevalence was higher in head and neck (18.73% [SE, 10.56%]) and cervical cancer survivors (15.70% [SE, 5.35%]). The distribution of specific SUDs was different compared with that in the lifetime cancer survivor cohort. For example, in recently diagnosed head and neck cancer survivors, sedative use disorder was the most common SUD (9.81% [SE, 9.17%]). Conclusions and Relevance: Findings of this study suggest that SUD prevalence is higher among survivors of certain types of cancer; this information could be used to identify cancer survivors who may benefit from integrated cancer and SUD care. Future efforts to understand and address the needs of adult cancer survivors with comorbid SUD should prioritize cancer populations in which SUD prevalence is high.

Advancing the science and practice of rare plant conservation with the Center for Plant Conservation Reintroduction Database.

Premise: Reintroductions or translocations are an increasingly important activity to recover and conserve at-risk plant species. Yet because many are not published in the scientific literature, learning from previous attempts may often require considerable time and effort. The Center for Plant Conservation Reintroduction Database (CPCRD; https://saveplants.org/reintroduction-database/), a new centralized and standardized repository of U.S.-based plant reintroductions, aims to improve the efficiency and effectiveness of accessing data on rare plant reintroductions. Methods: The CPCRD is the product of multiple efforts to assemble information on rare plant reintroductions in the United States. The database comprises a wealth of standardized data on the key stages of a reintroduction, from the planning and implementation phases, to monitoring and management techniques. Results: The CPCRD is a dynamic resource, allowing data contributors to continually update their entries as projects progress. While contributions are ongoing, the CPCRD currently includes 460 projects involving 201 plant taxa, spanning diverse growth forms, ecosystems, and regions. Discussion: The CPCRD and its well-documented and monitored projects provide a valuable practical resource for conservation practitioners, and have supported multiple scientific studies and contributed to the internationally recognized Center for Plant Conservation Best Practices Guidelines.

Trends and factors associated with receipt of human papillomavirus (HPV) vaccine in private, public, and alternative settings in the United States.

BACKGROUND: One of the goals of the President's Cancer Panel was to maximize access to human papillomavirus (HPV) vaccination through expansion of alternative settings for receiving the vaccine, such as in public health settings, schools, and pharmacies. METHODS: In a cross-sectional analysis, we utilized the National Immunization Survey-Teen data from 2014 to 2020 (n = 74,645) to describe trends and factors associated with HPV vaccine uptake in private, public, and alternative settings. We calculated annual percent change (APC) between 2014 and 2020, estimating rate of HPV vaccine uptake across settings. Using multinomial logistic regression, we estimated the odds of receipt of HPV vaccine in public health settings and other alternative settings compared to private healthcare settings, adjusting for sociodemographic covariates. RESULTS: We found a 5 % annual increase in the use of private facilities between 2014-2018 (APC = 5.3; 95 % CI 3.4, 7.1), and almost 7 % between 2018-2020 (APC = 6.7; 95 % CI 1.4, 12.3). Adjusted multinomial logistic regression analyses found that odds of receiving vaccinations at a public facility vs. a private facility increased almost two times for adolescents living below poverty (aOR = 1.82, 95 % CI: 1.60, 2.08) compared to above poverty. Additionally, adolescents without physician recommendations had lower odds of receiving vaccines at public versus private facilities (aOR = 1.75, 95 % CI: 1.44, 2.12). Finally, odds of receiving HPV vaccines at public facilities vs. private facilities decreased by 33 % for White adolescents (aOR = 0.67, 95 % CI: 0.57, 0.78) versus Black adolescents. CONCLUSIONS: Sociodemographic factors such as race, and socioeconomic factors such as poverty level, and receipt of physician HPV recommendations are associated with receiving the vaccine at private settings vs. public health facilities and alternative settings. This information is important in strengthening alternative settings for HPV vaccine uptake to increase access to the vaccine among disadvantaged individuals.

Risk of Atherosclerotic Cardiovascular Disease Hospitalizations after Chronic Obstructive Pulmonary Disease Hospitalization among Older Adults.

Rationale: Meta-analyses have suggested the risk of cardiovascular disease (CVD) events is significantly higher after a chronic obstructive pulmonary disease (COPD) exacerbation. However, many of these studies have included a broad array of CVD events or have been limited to highly selected patient populations potentially not generalizable to the broader population of COPD. Objectives and Methods: We assessed the risk of atherosclerotic cardiovascular disease (ASCVD) hospitalizations after COPD hospitalization compared with before COPD hospitalization and identified patient factors associated with ASCVD hospitalizations after COPD hospitalization. This retrospective cohort study used claims data from 920,550 Medicare beneficiaries hospitalized for COPD from 2016 to 2019 in the United States. The primary outcome was risk of an ASCVD hospitalization composite outcome (myocardial infarction, percutaneous coronary intervention, coronary artery bypass graft surgery, stroke, or transient ischemic attack) in the 30 days and 1 year after COPD hospitalization relative to the same time period before COPD hospitalization. Time in the before and after COPD hospitalization time periods to a composite ASCVD hospitalization outcome were modeled using an extension of the Cox proportional hazards model, the Anderson-Gill model, with adjustment for patient characteristics. Additional analyses evaluated for interactions in subgroups associated with the composite ASCVD hospitalization outcome. Results: Among 920,550 patients in the 30-day and 1-year cohorts (mean age, 73-74 yr) the hazard ratio estimate (95% confidence interval) for the composite ASCVD hospitalization outcome after COPD hospitalization versus before COPD hospitalization for the 30-day cohort was 0.99 (0.93, 1.05; P = 0.67), and for the 1-year cohort, it was 0.99 (0.97, 1.02; P = 0.53) after adjustment. We observed three subgroups that were significantly associated with higher risk for ASCVD hospitalizations 1 year after COPD hospitalization: 76+ years old, women, and COPD hospitalization severity. Conclusions: Among Medicare beneficiaries hospitalized for COPD, the risk of ASCVD hospitalization was not significantly increased 30 days or 1 year after COPD hospitalization relative to before COPD hospitalization. In subgroup analyses, we identified age 76+ years old, female sex, and COPD hospitalization severity as high-risk subgroups with increased risk of ASCVD events 1 year after COPD hospitalization. Further research is needed to characterize the COPD exacerbation populations at highest ASCVD hospitalization risk.

Racial Differences in Vaginal Fluid Metabolites and Association with Systemic Inflammation Markers among Ovarian Cancer Patients: A Pilot Study.

The vaginal microbiome differs by race and contributes to inflammation by directly producing or consuming metabolites or by indirectly inducing host immune response, but its potential contributions to ovarian cancer (OC) disparities remain unclear. In this exploratory cross-sectional study, we examine whether vaginal fluid metabolites differ by race among patients with OC, if they are associated with systemic inflammation, and if such associations differ by race. Study participants were recruited from the Ovarian Cancer Epidemiology, Healthcare Access, and Disparities Study between March 2021 and September 2022. Our study included 36 study participants with ovarian cancer who provided biospecimens; 20 randomly selected White patients and all 16 eligible Black patients, aged 50-70 years. Acylcarnitines (n = 45 species), sphingomyelins (n = 34), and ceramides (n = 21) were assayed on cervicovaginal fluid, while four cytokines (IL-1ß, IL-10, TNF-α, and IL-6) were assayed on saliva. Seven metabolites showed >2-fold differences, two showed significant differences using the Wilcoxon rank-sum test (p < 0.05; False Discovery Rate > 0.05), and 30 metabolites had coefficients > ±0.1 in a Penalized Discriminant Analysis that achieved two distinct clusters by race. Arachidonoylcarnitine, the carnitine adduct of arachidonic acid, appeared to be consistently different by race. Thirty-eight vaginal fluid metabolites were significantly correlated with systemic inflammation biomarkers, irrespective of race. These findings suggest that vaginal fluid metabolites may differ by race, are linked with systemic inflammation, and hint at a potential role for mitochondrial dysfunction and sphingolipid metabolism in OC disparities. Larger studies are needed to verify these findings and further establish specific biological mechanisms that may link the vaginal microbiome with OC racial disparities.

Health Care Access Dimensions and Racial Disparities in End-of-Life Care Quality among Patients with Ovarian Cancer.

This study investigated the association between health care access (HCA) dimensions and racial disparities in end-of-life (EOL) care quality among non-Hispanic Black (NHB), non-Hispanic White (NHW), and Hispanic patients with ovarian cancer. This retrospective cohort study used the Surveillance, Epidemiology, and End Results-linked Medicare data for women diagnosed with ovarian cancer from 2008 to 2015, ages 65 years and older. Health care affordability, accessibility, and availability measures were assessed at the census tract or regional levels, and associations between these measures and quality of EOL care were examined using multivariable-adjusted regression models, as appropriate. The final sample included 4,646 women [mean age (SD), 77.5 (7.0) years]; 87.4% NHW, 6.9% NHB, and 5.7% Hispanic. In the multivariable-adjusted models, affordability was associated with a decreased risk of intensive care unit stay [adjusted relative risk (aRR) 0.90, 95% confidence interval (CI): 0.83-0.98] and in-hospital death (aRR 0.91, 95% CI: 0.84-0.98). After adjustment for HCA dimensions, NHB patients had lower-quality EOL care compared with NHW patients, defined as: increased risk of hospitalization in the last 30 days of life (aRR 1.16, 95% CI: 1.03-1.30), no hospice care (aRR 1.23, 95% CI: 1.04-1.44), in-hospital death (aRR 1.27, 95% CI: 1.03-1.57), and higher counts of poor-quality EOL care outcomes (count ratio:1.19, 95% CI: 1.04-1.36). HCA dimensions were strong predictors of EOL care quality; however, racial disparities persisted, suggesting that additional drivers of these disparities remain to be identified. SIGNIFICANCE: Among patients with ovarian cancer, Black patients had lower-quality EOL care, even after adjusting for three structural barriers to HCA, namely affordability, availability, and accessibility. This suggests an important need to investigate the roles of yet unexplored barriers to HCA such as accommodation and acceptability, as drivers of poor-quality EOL care among Black patients with ovarian cancer.