Tag: statistics

Exp Appl Acarol. 2024 May 22. doi: 10.1007/s10493-024-00925-4. Online ahead of print.

ABSTRACT

The objective was to quantify and analyze the diversity of mites associated with native and cultivated açaí palms crops, as well as their distribution in the dry and rainy seasons in the municipalities of Bragança and Augusto Corrêa, state of Pará. Rarefaction curves were generated for diversity values using the statistical programming language R, rarefaction curves for estimates of richness and equitability, and analysis of variance with permutations. A total of 2069 mites from 28 families were sampled, being most representative Phytoseiidae (32.4%), Phytoptidae (13%), Cunaxidae (7.7%), Tetranychidae (5.6%) and Tydeidae (4.9%). Among predators, the most abundant species were Amblyseius sp. 1, Armascirus amazoniensis Wurlitzer & Silva, Iphiseiodes zuluagai Denmark & Muma, Scutopalus tomentosus Rocha, Skvarla & Ferla, and the phytophagous mites Acaphyllisa sp., Davisella sp., Oligonychus sp. and Retracus johnstoni Keifer. In the rainy season, more mites were sampled (n = 1176) than in the dry season (n = 893). The greatest richness was observed in the dry period (73 species) and diversity was also greater in this period. In the municipality of Bragança there was greater richness (78 species) and the cultivated açaí trees had greater acarine abundance (74.7%) than the native ones. However, natives had slightly higher wealth (6%) than those cultivated. The diversity and richness of predatory mites show the potential of the Amazon biome to be used in applied biological control.

PMID:38776058 | DOI:10.1007/s10493-024-00925-4

Int Urol Nephrol. 2024 May 22. doi: 10.1007/s11255-024-04088-4. Online ahead of print.

ABSTRACT

OBJECTIVE: Prostate cancer is one of the most common malignant neoplasms in elderly males, with radical prostatectomy being the established therapeutic approach for localized disease. Patients undergoing this surgical procedure frequently experience increased negative emotions and symptomatology during the perioperative period, likely due to concerns about the illness and its treatment. The present study aims to investigate the effects of a novel educational approach involving a whole-process visualization and collaborative nursing discussions on perioperative symptoms and emotional well-being in radical prostatectomy patients.

METHODS: Data were prospectively collected from 310 patients admitted to the hospital between June 2021 and December 2023, all of whom were scheduled to undergo radical prostatectomy. These patients were randomly assigned to either the intervention group (receiving new model education) or the control group (receiving conventional education), with 155 patients in each group. The study compared basic demographic information, anxiety and depression scores, fear of disease progression scores, quality-of-life scores, main symptom scores, and changes in perioperative vital signs between the two groups.

RESULTS: No statistically significant differences were observed between the two groups in terms of age, comorbidities, insurance type, education level, income, and tumor history (P > 0.05). Similarly, there were no significant differences in anxiety and depression scores, proportion of patients with anxiety and depression, vital signs, and fear of disease progression scores between the two groups at Time 1 stage (P > 0.05). During stages Time 2 and Time 3, the intervention group exhibited lower anxiety and depression scores, a lower proportion of anxious and depressed patients, as well as significantly reduced blood pressure and heart rate fluctuations compared to the control group (P < 0.05). Following radical prostatectomy, the main symptoms of patients, such as pain, nausea, and fatigue, were assessed using the MADIS Symptom Assessment Scale on days 1-3 post-surgery. The intervention group exhibited significantly lower scores for three symptoms compared to the control group (P < 0.05); at Time 4 stage, the patients in the intervention group also demonstrated significantly improved quality-of-life scores compared to the control group (P < 0.05). Additionally, blood pressure and heart rate of patients returned to baseline levels at Time 4 stage, with no significant difference between the two groups (P > 0.05). Nevertheless, the anxiety and depression scores in the intervention group at the Time 4 stage remained significantly lower than those in the control group (P < 0.05). Additionally, the fear of disease progression scores in both groups were lower than those at the Time 1 stage, with a more pronounced improvement observed in the intervention group compared to the control group (P < 0.05).

CONCLUSION: Patients diagnosed with malignant tumors often experience fear and anxiety regarding the progression of their disease and upcoming surgery, as well as uncertainty surrounding their treatment and prognosis. This heightened emotional distress can contribute to a greater symptom burden during the perioperative period. Utilizing a whole-process visualization and collaborative nursing discussion approach, as compared to traditional communication methods, has been shown to alleviate patients’ fears, reduce anxiety and depression, and ultimately lessen the symptom burden experienced during the perioperative phase. Ultimately, this approach can enhance the overall quality of life for patients facing malignant tumors.

PMID:38776055 | DOI:10.1007/s11255-024-04088-4

Ultrasound Obstet Gynecol. 2024 May 22. doi: 10.1002/uog.27705. Online ahead of print.

ABSTRACT

OBJECTIVE: To establish a normal reference interval for amniotic sac measurements between 7 and 10 weeks of gestation and its relative size in relation to the gestational sac and the embryo.

METHOD: This was a prospective, cross-sectional study of consecutive women presenting to UCLH Early Pregnancy Unit between August 2022 to June 2023. We included live, normally sited, singleton pregnancies with a normal 20-week anomaly scan. We collected 120 cases per gestational week totaling 360 cases. We performed an inter and intra-observer variability assessment in the measurement of mean ASD in 30 patients. Regression analyses were used to establish reference intervals for GSD to CRL, ASD to CRL, GSD to ASD and GSD:ASD ratio to CRL. The fitted regression line was calculated, along with a 90% prediction interval and the R² value.

RESULTS: There was good interobserver agreement (difference 0.007mm ± 1.105 (95%CI -2.160 to 2.174)) and good intra-observer agreement between Observer A (0.007 ± 1.105 (-2.160 to 2.174)) and Observer B (-0.014 ± 0.919 (-1.814 to 1.786)) in the measurement of mean ASD in 30 patients. Regression analyses showed a highly statistically significant association between each pair of values (all p-values <0.001). There were significant quadratic associations between mean GSD and CRL (R² = 56%) and mean GSD and ASD (R² = 60), significant cubic association between ASD and CRL (R² = 90%) and significant quadratic association between GSD to ASD ratio and CRL (R² = 68%). The regression equations were used to quantify the values of ASD and GSD to ASD ratios for a range of CRL values and gestational age in days.

CONCLUSION: Our study has produced comprehensive reference intervals for amniotic sac size in early pregnancy which could be used in routine clinical practice. This article is protected by copyright. All rights reserved.

PMID:38776053 | DOI:10.1002/uog.27705

Clin Exp Med. 2024 May 22;24(1):107. doi: 10.1007/s10238-024-01371-7.

ABSTRACT

Predicting the likelihood vascular events in patients with BCR/ABL1-negative myeloproliferative neoplasms (MPN) is essential for the treatment of the disease. However, effective assessment methods are lacking. Thrombin-antithrombin complex (TAT), plasmin-α₂– plasmininhibitor complex (PIC), thrombomodulin (TM), and tissue plasminogen activator-inhibitor complex (t-PAIC) are the new direct indicators for coagulation and fibrinolysis. The aim of this study was to investigate the changes of these four new indicators in thrombotic and hemorrhagic events in BCR/ABL1-negative MPN. The study cohort of 74 patients with BCR/ABL negative myeloproliferative disorders included essential thrombocythemia, polycythemia vera, and primary myelofibrosis (PMF). A panel of 4 biomarkers, including TAT, PIC, TM, and t-PAIC were determined using Sysmex HISCL5000 automated analyzers, whereas fibrin/fibrinogen degradation products (FDP), D-dimer and Antithrombin III (ATIII) were analyzed using Sysmex CS5100 coagulation analyzer. A total of 24 (32.4%) patients experienced thrombotic events and hemorrhagic events occurred in 8 patients (10.8%). Compared to patients without hemorrhagic-thrombotic events, patients with thrombotic events had higher fibrinogen (FIB) level, FDP level and lower ATIII activity, while patients with hemorrhagic events had lower white blood cell count and hemoglobin level, higher FDP level (P < 0.05). Patients with a JAK2V617F mutation were more likely to experience thrombotic events (P < 0.05). In addtion, patients with thrombotic events had higher TAT, PIC, TM, and t-PAIC levels than patients without hemorrhagic-thrombotic events (P < 0.05), whereas patients with hemorrhagic events had a lower median value in TAT and TM (no statistical difference, P > 0.05). Patients with higher TAT, TM and t-PAIC were more likely to experience thrombotic events (P < 0.05), and only TAT was positively correlated with thrombotic events (Spearman r =0.287, P = 0.019). TAT, PIC, TM, and t-PAIC combined with ATIII and FDP have a certain value for predicting thrombosis in patients with BCR/ABL1-negative MPN. These 6 parameters are worth further exploration as predictive factors and prognostic markers for early thrombotic events.

PMID:38776019 | DOI:10.1007/s10238-024-01371-7

Arch Dermatol Res. 2024 May 22;316(5):192. doi: 10.1007/s00403-024-02924-2.

ABSTRACT

BACKGROUND: There has been a growing imbalance between supply of dermatologists and demand for dermatologic care. To best address physician shortages, it is important to delineate supply and demand patterns in the dermatologic workforce. The goal of this study was to explore dermatology supply and demand over time.

METHODS: We conducted a cross-sectional analysis of workforce supply and demand projections for dermatologists from 2021 to 2036 using data from the Health Workforce Simulation Model from the National Center for Health Workforce Analysis. Estimates for total workforce supply and demand were summarized in aggregate and stratified by rurality. Scenarios with status quo demand and improved access were considered.

RESULTS: Projected total supply showed a 12.45% increase by 2036. Total demand increased 12.70% by 2036 in the status quo scenario. In the improved access scenario, total supply was inadequate for total demand in any year, lagging by 28% in 2036. Metropolitan areas demonstrated a relative supply surplus up to 2036; nonmetropolitan areas had at least a 157% excess in demand throughout the study period. In 2021 adequacy was 108% and 39% adequacy for metropolitan and nonmetropolitan areas, respectively; these differences were projected to continue through 2036.

CONCLUSIONS: The findings suggest that the dermatology physician workforce is inadequate to meet the demand for dermatologic services in nonmetropolitan areas. Furthermore, improved access to dermatologic care would bolster demand and especially exacerbate workforce inadequacy in nonmetropolitan areas. Continued efforts are needed to address health inequities and ensure access to quality dermatologic care for all.

PMID:38775980 | DOI:10.1007/s00403-024-02924-2

Arch Dermatol Res. 2024 May 22;316(5):187. doi: 10.1007/s00403-024-02963-9.

ABSTRACT

Inadequate education regarding disease manifestations in diverse skin colors hinders diagnosis and exacerbates health disparities. All levels of medical trainees report low confidence in accurately identifying disease in skin of color (SOC). To help further elucidate these concerns, our research aims to assess medical student confidence in recognizing cutaneous diseases in SOC and their viewpoints regarding SOC education within their institution. An eight-question, open-ended survey was provided to medical students before and after a SOC presentation. The survey assessed participants’ confidence in their diagnostic ability and perspectives on educational material. Among the 70 attendees, 58 (82.8%) and 64 (91.4%) completed the pre- and post-seminar surveys, respectively. There was a significant discrepancy in confidence levels when assessing cutaneous manifestations of internal pathology in light (Monk Skin Colors 1-5) versus dark (Monk Skin Colors 6-10) skin (p < 0.009). Notably, 78.7% (37/47) perceived the institutional learning materials as insufficient for SOC. Post-seminar reflections indicated that 87.2% (40/46) of students lacked confidence in diagnosing SOC, with 78.7% (32/46) citing inadequate curriculum coverage as the cause. An additional 8.5% (6/46) identified the predominance of white-centric medical descriptions as a hindrance. Students collectively called for improved educational approaches, including better visual representation of diseases in darker skin. Medical education must continue to strive for increased SOC representation to train competent physicians in treating a diverse patient population and reduce disparities in SOC patients.

PMID:38775979 | DOI:10.1007/s00403-024-02963-9

Arch Dermatol Res. 2024 May 22;316(5):202. doi: 10.1007/s00403-024-02959-5.

NO ABSTRACT

PMID:38775975 | DOI:10.1007/s00403-024-02959-5

Support Care Cancer. 2024 May 22;32(6):371. doi: 10.1007/s00520-024-08527-x.

ABSTRACT

PURPOSE: Many survivors of rectal cancer experience persistent bowel dysfunction. There are few evidence-based symptom management interventions to improve bowel control. The purpose of this study is to describe recruitment and pre-randomization baseline sociodemographic, health status, and clinical characteristics for SWOG S1820, a trial of the Altering Intake, Managing Symptoms in Rectal Cancer (AIMS-RC) intervention.

METHODS: SWOG S1820 aimed to determine the preliminary efficacy, feasibility, and acceptability of AIMS-RC, a symptom management intervention for bowel health, comparing intervention to attention control. Survivors with a history of cancers of the rectosigmoid colon or rectum, within 6-24 months of primary treatment completion, with a post-surgical permanent ostomy or anastomosis, and over 18 years of age were enrolled. Outcomes included total bowel function, low anterior resection syndrome, quality of life, motivation for managing bowel health, self-efficacy for managing symptoms, positive and negative affect, and study feasibility and acceptability.

RESULTS: The trial completed accrual over a 29-month period and enrolled 117 participants from 34 institutions across 17 states and one US Pacific territory. At baseline, most enrolled participants reported self-imposed diet adjustments after surgery, persistent dietary intolerances, and bowel discomfort post-treatment, with high levels of constipation and diarrhea (grades 1-4).

CONCLUSIONS: SWOG S1820 was able to recruit, in a timely manner, a study cohort that is demographically representative of US survivors of rectal cancer. Baseline characteristics illustrate the connection between diet/eating and bowel symptoms post-treatment, with many participants reporting diet adjustments and persistent inability to be comfortable with dietary intake.

GOV REGISTRATION DATE: 12/19/2019.

GOV IDENTIFIER: NCT#04205955.

PMID:38775966 | DOI:10.1007/s00520-024-08527-x

Skeletal Radiol. 2024 May 22. doi: 10.1007/s00256-024-04677-5. Online ahead of print.

ABSTRACT

OBJECTIVE: To evaluate the prevalence of shoulder adhesive capsulitis (AC) signs on MR studies of patients with various common shoulder conditions.

METHODS: MR images of 316 patients were retrospectively evaluated. Patients were divided into three groups: controls (66 patients), clinical AC (63 patients), and study group (187 patients). The final diagnosis of AC was reached clinically. The study group was composed of patients with focal and massive rotator cuff tears, active hydroxyapatite deposition disease, fractures around the shoulder, and post-surgery. The following AC signs were evaluated: inferior glenohumeral ligament (IGHL) thickening; coracohumeral ligament (CHL) thickening; and hyperintensity of the inferior glenohumeral ligament, which was graded in four classes.

RESULTS: The IGHL signal intensity was statistically higher in patients with fractures than in controls (P = 0.008). There was no statistically significant difference in IGHL signal between the AC group and patients with massive rotator cuff tears and active hydroxyapatite deposition disease (P > 0.1). IGHL thickness in patients with fractures, massive rotator ruptures, and active hydroxyapatite deposition disease was significantly higher compared to controls (P < 0.02) and significantly lower compared to the AC group (P < 0.0001). Based on these findings, a grading system for fibro-inflammatory capsular changes is proposed.

CONCLUSION: MR AC signs are frequent in patients with shoulder conditions other than AC; however, in these patients, capsular changes are less prominent than in patients with clinical AC.

PMID:38775948 | DOI:10.1007/s00256-024-04677-5

Aging Clin Exp Res. 2024 May 22;36(1):114. doi: 10.1007/s40520-024-02777-9.

ABSTRACT

INTRODUCTION: Previous observational studies have found an increased risk of frailty in patients with stroke. However, evidence of a causal relationship between stroke and frailty is scarce. The aim of this study was to investigate the potential causal relationship between stroke and frailty index (FI).

METHODS: Pooled data on stroke and debility were obtained from genome-wide association studies (GWAS).The MEGASTROKE Consortium provided data on stroke (N = 40,585), ischemic stroke (IS,N = 34,217), large-vessel atherosclerotic stroke (LAS,N = 4373), and cardioembolic stroke (CES,N = 7 193).Summary statistics for the FI were obtained from the most recent GWAS meta-analysis of UK BioBank participants and Swedish TwinGene participants of European ancestry (N = 175,226).Two-sample Mendelian randomization (MR) analyses were performed by inverse variance weighting (IVW), weighted median, MR-Egger regression, Simple mode, and Weighted mode, and heterogeneity and horizontal multiplicity of results were assessed using Cochran’s Q test and MR-Egger regression intercept term test.

RESULTS: The results of the current MR study showed a significant correlation between stroke gene prediction and FI (odds ratio 1.104, 95% confidence interval 1.064 – 1.144, P < 0.001). In terms of stroke subtypes, IS (odds ratio 1.081, 95% confidence interval 1.044 – 1.120, P < 0.001) and LAS (odds ratio 1.037, 95% confidence interval 1.012 – 1.062, P = 0.005). There was no causal relationship between gene-predicted CES and FI. Horizontal multidimensionality was not found in the intercept test for MR Egger regression (P > 0.05), nor in the heterogeneity test (P > 0.05).

CONCLUSIONS: This study provides evidence for a causal relationship between stroke and FI and offers new insights into the genetic study of FI.

PMID:38775917 | DOI:10.1007/s40520-024-02777-9