221 research outputs found

    Who Should Decide? Decision-Making Preferences for Primary HPV Testing for Cervical Cancer Screening Among U.S. Women

    Get PDF
    Revised U.S. guidelines for cervical cancer screening provide the option of primary human papillomavirus (HPV) testing, Pap testing, or co-testing. Primary HPV testing has not yet been an option for American women, and women may be reluctant to change screening methods. The purpose of this study was to assess correlates of women’s preferences for primary HPV testing decision-making (self, provider, or shared) for cervical cancer screening. Women, aged 30-65, completed an online survey in June of 2018 (n = 812). The outcome variable was preference for decision-making for an HPV test instead of a Pap test on a scale of, healthcare provider, me, or shared. Predictor variables included testing attitudes, social norms, information seeking, previous screening, and socio-demographics. Women who disagreed that people important to them think that they should get the HPV test instead of a Pap test, who were not willing to receive an HPV test instead of a Pap test, and who did not receive HPV vaccinations were less likely to include a provider in their decision-making. In contrast, women who were not up-to-date with their cervical cancer screenings, who had some college or technical level education, or who were over 50 years of age were more likely to prefer to have a healthcare provider included in their decision-making process. While some variation was discovered, women mostly preferred a shared decision or personal decision for HPV testing. Resources to facilitate the decision-making process about this new option for cervical cancer screening are needed

    Association between Patient Characteristics and HPV Vaccination Recommendation for Postpartum Patients: A National Survey of Obstetrician/Gynecologists

    Get PDF
    Human papillomavirus (HPV) vaccination rates in the U.S. are relatively low. Provider recommendation rates for HPV vaccination often vary by patient age and relationship status. Obstetrician/gynecologists (OB/GYNs) represent a key provider group that can recommend the HPV vaccine. This study examined differences in OB/ GYN recommendation of HPV vaccination for inpatient postpartum patients by age, parity, and marital status. Data were collected from OB/GYNs nationally via a cross-sectional survey. Participants were randomized to two vignette groups (23-year-old patient or 33-year-old patient). Within each group, participants received 4 vignettes that were identical except for patient marital status (married/not in a committed relationship) and number of children (first/third child), and were asked to indicate HPV vaccination recommendation likelihood on a scale of 0 (definitely would not) to 100 (definitely would). A 2 × 2 × 2 general linear model with repeated measures was used to examine main and interaction effects of patient age, relationship status, and parity. 207 OB/GYNs were included in the final analyses. Recommendation was high for 23-year-old patients (range: 64.5–84.6 out of 100). When marital status and parity were held constant, recommendation likelihood was higher for the younger vs. older patient and was also higher for patients not in a committed relationship, compared to married patients (all p-values \u3c 0.001). Differences in recommendation exist when considering age and relationship status, which provides insight into OB/GYN clinical decision-making. Findings highlight the need to address barriers to HPV vaccination recommendation, including awareness of risk factors to consider when recommending the vaccine

    Phylogenetic and structural diversity of aromatically dense pili from environmental metagenomes

    Get PDF
    This is the peer reviewed version of the following article: Bray, M.S., Wu, J., Padilla, C.C., Stewart, F.J., Fowle, D.A., Henny, C., Simister, R.L., Thompson, K.J., Crowe, S.A. and Glass, J.B. (2020), Phylogenetic and structural diversity of aromatically dense pili from environmental metagenomes. Environmental Microbiology Reports, 12: 49-57. https://doi.org/10.1111/1758-2229.12809, which has been published in final form at https://doi.org/10.1111/1758-2229.12809. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.Electroactive type IV pili, or e-pili, are used by some microbial species for extracellular electron transfer. Recent studies suggest that e-pili may be more phylogenetically and structurally diverse than previously assumed. Here, we used updated aromatic density thresholds (≥9.8% aromatic amino acids, ≤22-aa aromatic gaps and aromatic amino acids at residues 1, 24, 27, 50 and/or 51, and 32 and/or 57) to search for putative e-pilin genes in metagenomes from diverse ecosystems with active microbial metal cycling. Environmental putative e-pilins were diverse in length and phylogeny, and included truncated e-pilins in Geobacter spp., as well as longer putative e-pilins in Fe(II)-oxidizing Betaproteobacteria and Zetaproteobacteria

    Nutrient Acquisition and the Metabolic Potential of Photoferrotrophic Chlorobi

    Get PDF
    Anoxygenic photosynthesis evolved prior to oxygenic photosynthesis and harnessed energy from sunlight to support biomass production on the early Earth. Models that consider the availability of electron donors predict that anoxygenic photosynthesis using Fe(II), known as photoferrotrophy, would have supported most global primary production before the proliferation of oxygenic phototrophs at approximately 2.3 billion years ago. These photoferrotrophs have also been implicated in the deposition of banded iron formations, the world’s largest sedimentary iron ore deposits that formed mostly in late Archean and early Proterozoic Eons. In this work we present new data and analyses that illuminate the metabolic capacity of photoferrotrophy in the phylum Chlorobi. Our laboratory growth experiments and biochemical analyses demonstrate that photoferrotrophic Chlorobi are capable of assimilatory sulfate reduction and nitrogen fixation under sulfate and nitrogen limiting conditions, respectively. Furthermore, the evolutionary histories of key enzymes in both sulfur (CysH and CysD) and nitrogen fixation (NifDKH) pathways are convoluted; protein phylogenies, however, suggest that early Chlorobi could have had the capacity to assimilate sulfur and fix nitrogen. We argue, then, that the capacity for photoferrotrophic Chlorobi to acquire these key nutrients enabled them to support primary production and underpin global biogeochemical cycles in the Precambrian

    A Multi-Proxy Assessment of the Impact of Environmental Instability on Late Holocene (4500-3800 BP) Native American Villages of the Georgia Coast

    Get PDF
    Circular shell rings along the South Atlantic Coast of North America are the remnants of some of the earliest villages that emerged during the Late Archaic (5000-3000 BP). Many of these villages, however, were abandoned during the Terminal Late Archaic (ca 3800-3000 BP). We combine Bayesian chronological modeling with mollusk shell geochemistry and oyster paleobiology to understand the nature and timing of environmental change associated with the emergence and abandonment of circular shell ring villages on Sapelo Island, Georgia. Our Bayesian models indicate that Native Americans occupied the three Sapelo shell rings at varying times with some generational overlap. By the end of the complex\u27s occupation, only Ring III was occupied before abandonment ca. 3845 BP. Ring III also consists of statistically smaller oysters harvested from less saline estuaries compared to earlier occupations. Integrating shell biochemical and paleobiological data with recent tree ring analyses shows a clear pattern of environmental fluctuations throughout the period in which the rings were occupied. We argue that as the environment became unstable around 4300 BP, aggregation at villages provided a way to effectively manage fisheries that are highly sensitive to environmental change. However, with the eventual collapse of oyster fisheries and subsequent rebound in environmental conditions ca. post-3800 BP, people dispersed from shell rings, and shifted to non-marine subsistence economies and other types of settlements. This study provides the most comprehensive evidence for correlations between large-scale environmental change and societal transformations on the Georgia coast during the Late Archaic period

    Case Fatality Rates Based on Population Estimates of Influenza-Like Illness Due to Novel H1N1 Influenza: New York City, May–June 2009

    Get PDF
    BACKGROUND: The public health response to pandemic influenza is contingent on the pandemic strain's severity. In late April 2009, a potentially pandemic novel H1N1 influenza strain (nH1N1) was recognized. New York City (NYC) experienced an intensive initial outbreak that peaked in late May, providing the need and opportunity to rapidly quantify the severity of nH1N1. METHODS AND FINDINGS: Telephone surveys using rapid polling methods of approximately 1,000 households each were conducted May 20-27 and June 15-19, 2009. Respondents were asked about the occurrence of influenza-like illness (ILI, fever with either cough or sore throat) for each household member from May 1-27 (survey 1) or the preceding 30 days (survey 2). For the overlap period, prevalence data were combined by weighting the survey-specific contribution based on a Serfling model using data from the NYC syndromic surveillance system. Total and age-specific prevalence of ILI attributed to nH1N1 were estimated using two approaches to adjust for background ILI: discounting by ILI prevalence in less affected NYC boroughs and by ILI measured in syndromic surveillance data from 2004-2008. Deaths, hospitalizations and intensive care unit (ICU) admissions were determined from enhanced surveillance including nH1N1-specific testing. Combined ILI prevalence for the 50-day period was 15.8% (95% CI:13.2%-19.0%). The two methods of adjustment yielded point estimates of nH1N1-associated ILI of 7.8% and 12.2%. Overall case-fatality (CFR) estimates ranged from 0.054-0.086 per 1000 persons with nH1N1-associated ILI and were highest for persons>or=65 years (0.094-0.147 per 1000) and lowest for those 0-17 (0.008-0.012). Hospitalization rates ranged from 0.84-1.34 and ICU admission rates from 0.21-0.34 per 1000, with little variation in either by age-group. CONCLUSIONS: ILI prevalence can be quickly estimated using rapid telephone surveys, using syndromic surveillance data to determine expected "background" ILI proportion. Risk of severe illness due to nH1N1 was similar to seasonal influenza, enabling NYC to emphasize preventing severe morbidity rather than employing aggressive community mitigation measures

    Use of sonic tomography to detect and quantify wood decay in living trees.

    Get PDF
    Premise of the studyField methodology and image analysis protocols using acoustic tomography were developed and evaluated as a tool to estimate the amount of internal decay and damage of living trees, with special attention to tropical rainforest trees with irregular trunk shapes.Methods and resultsLiving trunks of a diversity of tree species in tropical rainforests in the Republic of Panama were scanned using an Argus Electronic PiCUS 3 Sonic Tomograph and evaluated for the amount and patterns of internal decay. A protocol using ImageJ analysis software was used to quantify the proportions of intact and compromised wood. The protocols provide replicable estimates of internal decay and cavities for trees of varying shapes, wood density, and bark thickness.ConclusionsSonic tomography, coupled with image analysis, provides an efficient, noninvasive approach to evaluate decay patterns and structural integrity of even irregularly shaped living trees

    Are Health Care Professionals Prepared to Implement Human Papillomavirus Testing? A Review of Psychosocial Determinants of Human Papillomavirus Test Acceptability in Primary Cervical Cancer Screening

    Get PDF
    Background: Guidelines for cervical cancer screening have been updated to include human papillomavirus (HPV) testing, which is more sensitive compared to cytology in detecting cervical intraepithelial neoplasia. Because of its increased sensitivity, a negative HPV test is more reassuring for a woman that she is at low risk for precancerous cervical lesions than a negative Pap test. Prompted by the inadequate translation of HPV test-based screening guidelines into practice, we aimed to synthesize the literature regarding health care providers (HCPs) knowledge, attitudes, and practices related to HPV testing and the influence of psychosocial factors on HCPs acceptability of HPV testing in primary cervical cancer screening. Materials and Methods: We searched MEDLINE, Embase, PsycINFO, CINAHL, Global Health, and Web of Science for journal articles from January 1, 1980 to July 25, 2018. A narrative synthesis of HCPs knowledge, attitudes, and practices related to HPV testing is provided. Informed by the Patient Pathway framework, we used deductive thematic analysis to synthesize the influence of psychosocial factors on HCPs acceptability of HPV testing. Results: The most important HCP knowledge gaps are related to the superior sensitivity of the HPV test and age-specific guideline recommendations for HPV testing. Thirty to fifty percent of HCPs are not compliant with guideline recommendations for HPV testing, for example, screening at shorter intervals than recommended. Barriers, facilitators, and contradictory evidence of HCPs' acceptability of the HPV test are grouped by category: (1) factors related to the HCP; (2) patient intrinsic factors; (3) factors corresponding to HCP's practice environment; and (4) health care system factors. Conclusions: HCP's adherence to guidelines for HPV testing in cervical cancer screening is suboptimal and could be improved by specialty organizations ensuring consistency across guidelines. Targeted educational interventions to address barriers of HPV test acceptability identified in this review may facilitate the translation of HPV testing recommendations into practice

    Pooled analysis of the association of PTGS2 rs5275 polymorphism and NSAID use with invasive ovarian carcinoma risk

    Get PDF
    Inflammation is postulated to play an important role in ovarian carcinogenesis. Prostaglandin endoperoxide synthase 2 (PTGS2) is responsible for the conversion of arachidonic acid to prostaglandins in response to inflammation. We examined the association of the PTGS2 rs5275 polymorphism with the risk of invasive ovarian carcinoma and the joint effect of rs5275 and use of nonsteroidal antiinflammatory drugs (NSAIDs) on risk in a pooled analysis of two population-based studies, the Hawaii Ovarian Cancer Case-Control Study and the New England Case-Control Study, including 1025 women with invasive ovarian carcinoma and 1687 cancer-free controls. Odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using unconditional logistic regression. In the pooled analysis, the CC genotype was associated with a reduced risk of nonserous ovarian carcinoma (OR=0.66; CI: 0.44-0.98). In addition, the lowest risk was observed among carriers of the CC genotype who were users of nonaspirin NSAIDs (OR=0.43; CI:0.20-0.93) in all women combined. The association of PTGS2 rs5275 with nonserous ovarian carcinoma and possible effect modification by NSAID use needs further validation, preferably in the prospective studies
    • …
    corecore