17,107 results match your criteria moderate correlations

Review and Analysis of Personal-Ambient Ozone Measurements.

J Air Waste Manag Assoc 2021 Jun 22. Epub 2021 Jun 22.

Electric Power Research Institute (EPRI), 3420 Hillview Avenue, Palo Alto, CA, 94304, USA.

Ambient ozone measurements are often used as surrogates for personal exposures. Due to the limited number of central ozone monitors and varying personal behavioral patterns, some level of variability between ambient and personal exposures is expected. Low-cost sensors and different ways to capture personal activity patterns are being developed as an effort to improve the accuracy of exposure assessment. Read More

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Wiad Lek 2021 ;74(4):966-972


Objective: The aim: To investigate haematological and biochemical parameters and their potential for grading the severity of coronary artery lesions to predict the course atherosclerosis.

Patients And Methods: Materials and methods: The study is based on data obtained from a prospective analysis of 131 patients at the age of 51 to 82 years old from January to December 2019, whose complaints could indicate the coronary artery disease. All patients underwent a comprehensive clinical, laboratory and instrumental examination. Read More

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January 2021


Wiad Lek 2021 ;74(4):869-873


Objective: The aim: Was to investigate the status of endotoxicosis parameters in patients with chronic pancreatitis depending on the presence of a combination with type 2 diabetes mellitus, as well as their impact on the functional capacity of the pancreas.

Patients And Methods: Materials and methods: 87 outpatients with CP with concomitant type 2 diabetes and without it were examined. The main group consisted of 62 patients with CP in the phase of therapeutic exacerbation in combination with diabetes mellitus in a state of sub- or full compensation, the comparison group - 25 patients with isolated CP, the control group consisted of 30 healthy individuals. Read More

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January 2021

Quantitative muscle MRI biomarkers in Duchenne muscular dystrophy: cross-sectional correlations with age and functional tests.

Biomark Med 2021 Jun 22. Epub 2021 Jun 22.

Pfizer Inc, Cambridge, MA 02139, USA.

Using baseline data from a clinical trial of domagrozumab in Duchenne muscular dystrophy, we evaluated the correlation between functional measures and quantitative MRI assessments of thigh muscle. Analysis included timed functional tests, knee extension/strength and North Star Ambulatory Assessment. Patients (n = 120) underwent examinations of one thigh, with MRI sequences to enable measurements of muscle volume (MV), MV index, mean T2 relaxation time via T2-mapping and fat fraction. Read More

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Genetic background of lumbosacral transitional vertebrae in German shepherd dogs.

J Small Anim Pract 2021 Jun 21. Epub 2021 Jun 21.

Department of Veterinary Clinical Sciences, Clinic for Small Animals (Surgery), Justus Liebig University, 35392, Giessen, Germany.

Objectives: Estimation of genetic parameters of lumbosacral transitional vertebrae based on data derived from radiographic screening of 27,597 German shepherd dogs.

Materials And Methods: Results of radiographic screening for lumbosacral transitional vertebrae classified according to a published scheme were collected. Obtained data were used for estimating variance components in single and multiple trait linear animal models to obtain heritabilities and additive genetic correlations for different types of lumbosacral transitional vertebrae. Read More

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Quantification of bone marrow edema in rheumatoid arthritis by using high-speed T2-corrected multiecho acquisition of H magnetic resonance spectroscopy: a feasibility study.

Clin Rheumatol 2021 Jun 21. Epub 2021 Jun 21.

Department of Radiology, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, Guangxi, 530021, People's Republic of China.

Objective: To determine whether high-speed T2-corrected multiecho (HISTO) sequences can quantify bone marrow edema (BME) in the capitate bone in rheumatoid arthritis (RA), and whether the HISTO fat fraction (FF) reflects therapeutic effectiveness.

Methods: In this prospective study, 25 RA patients (19 women; average age, 45.08 ± 13. Read More

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The effect of powered ankle prostheses on muscle activity during walking.

J Biomech 2021 Jun 11;124:110573. Epub 2021 Jun 11.

School of Kinesiology, University of Michigan, Ann Arbor, MI, USA; Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA. Electronic address:

Individuals with transtibial amputation (TTA) walk with greater muscle activity and metabolic costs than non-amputees. Powered prostheses aim to address these deficits by replicating the active function of the biological ankle. The purpose of this study was to determine if people with TTA alter muscle activity when walking with a powered prosthesis, and if this change relates to changes in metabolic costs. Read More

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Preliminary Validation of the Triana Test: A New Story Recall Test Based on Emotional Material.

Am J Alzheimers Dis Other Demen 2021 Jan-Dec;36:15333175211025911

Memory Unit, 16885Virgen del Rocio University Hospital, Seville, Spain.

Objective: To first validate the diagnostic accuracy of the "Triana Test," a new story recall test based on emotional material.

Method: A phase I study of validation. We included 55 patients with amnestic Mild Cognitive Impairment and 69 healthy controls, diagnosed according to the "Memory Associative Test of the district of Seine-Saint-Denis" (TMA-93), and matched by age, gender, and educational level. Read More

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Correlations and incipient antiferromagnetic order within the linear Mn chains of metallic TiMnBi.

Phys Rev B 2020 ;102

Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA.

We report measurements on TiMnBi, where a crystal structure involving linear chains of Mn ions suggests one-dimensional magnetic character. The electrical resistivity is metallic, consistent with the results of electronic-structure calculations that find a robust Fermi surface albeit with moderate electronic correlations. A Curie-Weiss fit to the magnetic susceptibility suggests that the Mn moments are in the low-spin = 1/2 configuration. Read More

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January 2020

Correlation of surgical case volume and fellowship training with performance on simulated procedural tasks.

Am J Obstet Gynecol 2021 Jun 17. Epub 2021 Jun 17.

Department of Obstetrics, Gynecology, and Reproductive Science, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.

Background: High-volume and fellowship-trained surgeons have superior outcomes. However, in gynecology, a large proportion of cases are performed by low-volume surgeons. Simulation has been shown to be useful in assessing surgical skill and may be a useful tool in hospital credentialing and maintenance of privileges. Read More

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Correspondence of parasympathetic-mediated heart rate variability derived from electrocardiogram and photoplethysmography signals in ethnically diverse adolescents.

Int J Psychophysiol 2021 Jun 16. Epub 2021 Jun 16.

Montana State University, United States of America.

The reliable and valid assessment of heart rate variability (HRV) is important to understanding autonomic functioning in. However, use of electrocardiogram (ECG) signals to derive estimates of parasympathetic-mediated HRV may present logistical barriers in applied settings. Thus, this study investigated the concordance between high-frequency HRV [HF-HRV] and root mean square of successive differences [RMSSD] derived from ECG and photoplethysmography (PPG) signals during a video baseline, resting baseline, and mental arithmetic among an ethnically diverse sample of ninety-six youths (M = 13. Read More

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Responsiveness of the SF-36 general health domain: observations from 14883 spine surgery procedures.

Qual Life Res 2021 Jun 19. Epub 2021 Jun 19.

Faculty of Medicine and Health, University Health Care Research Center, Orebro University, 70182, Orebro, Sweden.

Purpose: The study evaluated perceptions of general health (GH) after surgical treatment of spinal stenosis and disk herniation. We used a large longitudinally collected data set to explore differences in responsiveness between the SF-36 GH domain, EQ VAS, EQ-5D index, and SF-6D index.

Methods: Patients, surgically treated for lumbar spinal stenosis or lumbar disk herniation between 2007 and 2017, were recruited from the national Swedish spine register. Read More

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The mSQUASH; a valid, reliable and responsive questionnaire for daily physical activity in patients with axial spondyloarthritis.

Semin Arthritis Rheum 2021 May 20;51(4):719-727. Epub 2021 May 20.

Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, the Netherlands; Rheumatology, Medical Center Leeuwarden, the Netherlands.

Aim: Adaptation of the Short QUestionnaire to Assess Health-enhancing physical activity (SQUASH) in order to improve measurement properties in axSpA patients.

Methods: The original SQUASH was adapted using a qualitative stepwise approach with in-depth interviews including healthcare professionals and patients. Content validity was explored by comparing modified-SQUASH (mSQUASH) and original SQUASH. Read More

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Correlations between aortic tortuosity, diameter and presence of acute type A aortic dissection.

J Cardiovasc Surg (Torino) 2021 Jun 18. Epub 2021 Jun 18.

Cardiovascular Surgery, Union Hospital, Huazhong University of Science and Technology, Wuhan, People's Republic of China -

Background: Currently, only patients with ascending aorta diameter exceeding 55mm will undergo prophylactic surgery. However, diameter alone is insufficient for precise risk stratification. An International Registry of Acute Aortic Dissections study showed that nearly 60% of patients with type A aortic dissection had a diameter<55mm. Read More

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The Self-Paced Submaximal Run Test: Associations With the Graded Exercise Test and Reliability.

Int J Sports Physiol Perform 2021 Jun 17:1-9. Epub 2021 Jun 17.

Purpose: To assess the reliability and construct validity of a self-paced, submaximal run test (SRTRPE) for monitoring aerobic fitness. The SRTRPE monitors running velocity (v), heart rate (HRex), and blood lactate concentration (B[La]), during three 3-minute stages prescribed by ratings of perceived exertion (RPEs) of 10, 13, and 17.

Methods: Forty (14 female) trained endurance runners completed a treadmill graded exercise test for the determination of maximal oxygen consumption (VO2max), v at VO2max (vVO2max), and v at 2 mmol·L-1 (vLT1) and 4 mmol·L-1 (vLT2) B[La]. Read More

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Naming unrelated words predicts creativity.

Proc Natl Acad Sci U S A 2021 Jun;118(25)

Melbourne School of Psychological Sciences, University of Melbourne, Melbourne, VIC 3010, Australia.

Several theories posit that creative people are able to generate more divergent ideas. If this is correct, simply naming unrelated words and then measuring the semantic distance between them could serve as an objective measure of divergent thinking. To test this hypothesis, we asked 8,914 participants to name 10 words that are as different from each other as possible. Read More

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The reliability and validity of a physical activity and sedentary behaviour home audit tool for children aged 2-5 years.

J Sci Med Sport 2021 May 23. Epub 2021 May 23.

Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Australia. Electronic address:

Objectives: To test the reliability and validity of a physical activity and sedentary behaviour home environment audit tool for young children (2-5 years old).

Design: Cross-sectional.

Methods: Parents of children aged 2-5 years were recruited through online methods (i. Read More

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Baseline intracardiac echocardiography predicts haemodynamic changes and Doppler velocity patterns during follow-up after percutaneous pulmonary valve implantation.

Cardiol Young 2021 Jun 18:1-7. Epub 2021 Jun 18.

The Heart Institute, Children's Hospital Colorado, Aurora, Colorado, USA.

Background: Intracardiac echocardiography Doppler-derived gradients have previously been shown to correlate with post-procedure echocardiographic evaluations when compared with invasive gradients measured during percutaneous pulmonary valve implantation, suggesting that intracardiac echocardiography could offer an accurate and predictable starting point to estimate valve function after percutaneous pulmonary valve implantation.

Methods: We performed a retrospective chart review of 51 patients who underwent percutaneous pulmonary valve implantation between September 2018 and December 2019 in whom intracardiac echocardiography was performed immediately after valve implantation. We evaluated the correlation between intracardiac echocardiography gradients and post-procedural Doppler-derived gradients. Read More

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Ultrasonic bone assessment: ability of apparent backscatter techniques to detect changes in the microstructure of human cancellous bone.

IEEE Trans Ultrason Ferroelectr Freq Control 2021 Jun 17;PP. Epub 2021 Jun 17.

Ultrasonic backscatter techniques may offer a useful approach for detecting changes in bone caused by osteoporosis. The goal of the present study was to investigate how bone mineral density (BMD) and the microstructure of human cancellous bone affect three ultrasonic backscatter parameters that have been identified as potentially useful for ultrasonic bone assessment purposes: apparent integrated backscatter (AIB), frequency slope of apparent backscatter (FSAB), and frequency intercept of apparent backscatter (FIAB). Ultrasonic measurements were performed with a 3. Read More

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Macular Ischemia Quantification Using Deep-Learning Denoised Optical Coherence Tomography Angiography in Branch Retinal Vein Occlusion.

Transl Vis Sci Technol 2021 Jun;10(7):23

Department of Ophthalmology, Chang Gung Memorial Hospital, Keelung, Taiwan.

Purpose: To examine whether deep-learning denoised optical coherence tomography angiography (OCTA) images could enhance automated macular ischemia quantification in branch retinal vein occlusion (BRVO).

Methods: This retrospective, single-center, cross-sectional study enrolled 74 patients with BRVO and 46 age-matched healthy subjects. The severity of macular ischemia was graded as mild, moderate, or severe. Read More

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Subjective Cognition Reported by Caregivers is Correlated with Objective Cognition in Liver Transplant Recipients.

Liver Transpl 2021 Jun 16. Epub 2021 Jun 16.

School of Nursing, Vanderbilt University, Nashville, Tennessee, USA.

Objective cognitive assessments, a gold standard diagnostic tool for cognitive impairment, may not be feasible in busy liver transplant (LT) practice since they are often time-consuming. This study aimed to determine whether subjective cognition, patients' self-ratings and/or caregivers' ratings of patients' cognition, reflects objective cognition in LT recipients. A convenience sample of 60 adult LT recipients and their caregivers, recruited at a single transplant center, participated in this cross-sectional descriptive study. Read More

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Salivary cytokine - A non-invasive predictor for bronchopulmonary dysplasia in premature neonates.

Cytokine 2021 Jun 13:155616. Epub 2021 Jun 13.

Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan (No. 123, Dapi Rd., Niaosong Dist., Kaohsiung City 833, Taiwan, ROC; School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Linkou, Taiwan (No. 259, Wunhua 1st Rd., Guishan Dist., Taoyuan City 333, Taiwan, ROC.

Background: To find a less invasive method of cytokine detection for premature neonates, we conducted this cohort study to investigate the salivary cytokines and to analyze their correlations with bronchopulmonary dysplasia (BPD).

Methods: Premature neonates younger than 34 weeks of gestational age without maternal or neonatal infection were recruited. Salivary samples were collected on their first (D1) and seventh (D7) days of life. Read More

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Chinese registry of rheumatoid arthritis: IV. Correlation and consistency of rheumatoid arthritis disease activity indices in China.

Chin Med J (Engl) 2021 Jun;134(12):1465-1470

Department of Rheumatology, Peking Union Medical College Hospital (PUMCH), Peking Union Medical College & Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, State Key Laboratory of Complex Severe and Rare Diseases, Ministry of Science & Technology, Beijing 100730, China.

Background: Disease activity indices (DAIs) including disease activity score 28 (DAS28), simplified disease activity index (SDAI), and clinical disease activity index (CDAI) have been widely used in clinical practice and research studies of rheumatoid arthritis (RA). The objective of our study was to evaluate the correlation and concordance among different DAIs in Chinese patients with RA.

Methods: A cross-sectional study, including patients enrolled in the Chinese registry of rheumatoid arthritis from November 2016 to August 2018, was conducted. Read More

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Multi-cohort profiling reveals elevated CSF levels of brain-enriched proteins in Alzheimer's disease.

Ann Clin Transl Neurol 2021 Jun 15. Epub 2021 Jun 15.

Division of Affinity Proteomics, Department of Protein Science, SciLifeLab, KTH Royal Institute of Technology, Stockholm, Sweden.

Objective: Decreased amyloid beta (Aβ) 42 together with increased tau and phospho-tau in cerebrospinal fluid (CSF) is indicative of Alzheimer's disease (AD). However, the molecular pathophysiology underlying the slowly progressive cognitive decline observed in AD is not fully understood and it is not known what other CSF biomarkers may be altered in early disease stages.

Methods: We utilized an antibody-based suspension bead array to analyze levels of 216 proteins in CSF from AD patients, patients with mild cognitive impairment (MCI), and controls from two independent cohorts collected within the AETIONOMY consortium. Read More

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Comparison of patient- and clinician-reported outcome measures in lower back rehabilitation: introducing a new integrated performance measure (t2D).

Qual Life Res 2021 Jun 15. Epub 2021 Jun 15.

Ludwig Boltzmann Institute for Rehabilitation Research, Reizenpfenninggasse 1, 1140, Vienna, Austria.

Purpose: Patient- and clinician-reported outcome measures (PROMs, CROMs) are used in rehabilitation to evaluate and track the patient's health status and recovery. However, controversy still exists regarding their relevance and validity when assessing a change in health status.

Methods: We retrospectively analyzed the changes in a CROM (Fingertip-To-Floor Test - FTF) and PROMs (ODI, HAQ-DI, NPRS, EQ5D) and the associations between these outcomes in 395 patients with lower back pain (57. Read More

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Demoralization in End-of-Life Cancer Patients' Family Caregivers: A Cross-Sectional Study.

Am J Hosp Palliat Care 2021 Jun 15:10499091211023482. Epub 2021 Jun 15.

Clinical Psychology Unit, Department of Neuroscience, 9314University of Turin, Città della Salute e della Scienza" Hospital, Turin, Italy.

Objectives: The aims of this study were to evaluate the prevalence of demoralization in a sample of end-of-life cancer patients' family caregivers and investigate the association between demoralization and different factors, such as distress, hope, quality of life, and caregiver burden.

Methods: The study used a cross-sectional design and 142 participants were sampled. Family caregivers were included if they were caring for a cancer patient in palliative care with a limited life expectancy. Read More

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Programmed Death Ligand 1 Immunohistochemistry in Triple-Negative Breast Cancer: Evaluation of Inter-Pathologist Concordance and Inter-Assay Variability.

J Breast Cancer 2021 May 26. Epub 2021 May 26.

Department of Pathology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.

Purpose: The programmed death ligand 1 (PD-L1) SP142 assay with a 1% immune cell (IC) cutoff is approved for the selection of advanced triple-negative breast cancer (TNBC) patients for atezolizumab treatment. We aimed to evaluate the interobserver concordance of PD-L1 scoring and inter-assay variability of various PD-L1 assays in TNBC.

Methods: Thirty patients with primary TNBC were selected, and SP142, SP263, 22C3, and E1L3N assays were performed. Read More

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Validity and Reliability of the Turkish Canadian Occupational Performance Measure (COPM-TR) for People with Multiple Sclerosis.

Occup Ther Health Care 2021 Jun 14:1-12. Epub 2021 Jun 14.

University of Health Sciences Turkey, Ankara, Turkey.

The Canadian Occupational Performance Measure (COPM) is a generic questionnaire based on a semi-structured interview. We aimed to translate a Turkish version of the COPM (COPM-TR) and assess its reliability and validity. The COPM-TR was administered to 82 participants (42. Read More

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Effects of Concurrent Tasks on Gait Performance in Children With Traumatic Brain Injury Versus Children With Typical Development.

Ann Rehabil Med 2021 Jun 14. Epub 2021 Jun 14.

Clinical and Rehabilitation Exercise Research Group, Faculty of Health Sciences, Universiti Teknologi MARA - Puncak Alam Campus, Selangor, Malaysia.

Objective: To investigate how gait parameters in children with traumatic brain injury (TBI) versus typically developing (TD) children are influenced by secondary concurrent tasks and examine the correlations between gait parameters and attention and balance in children with TBI.

Methods: Sixteen children with TBI (mean age, 11.63±1. Read More

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Analysis of Facial Skeletal Morphology: Nasal Bone, Maxilla, and Mandible.

Biomed Res Int 2021 24;2021:5599949. Epub 2021 May 24.

Division of Clinical Dentistry, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.

The growth and development of facial bones are closely related to each other. The present study investigated the differences in the nasomaxillary and mandibular morphology among different skeletal patterns. Cephalograms of 240 participants were divided into 3 groups based on the skeletal pattern (Class I, Class II, and Class III). Read More

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