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Nevin Manimala Statistics

Comparison of Aerosol Emissions during Specific Speech Tasks

J Voice. 2023 Jul 7:S0892-1997(23)00156-X. doi: 10.1016/j.jvoice.2023.05.004. Online ahead of print.

ABSTRACT

OBJECTIVES/HYPOTHESIS: Recent investigations into the behavior of aerosolized emissions from the oral cavity have shown that particulate emissions do indeed occur during speech. To date, there is little information about the relative contribution of different speech sounds in producing particle emissions in a free field. This study compares airborne aerosol generation in participants producing isolated speech sounds: fricative consonants, plosive consonants, and vowel sounds.

STUDY DESIGN: Prospective, reversal experimental design, where each participant served as their own control and all participants were exposed to all stimuli.

METHODS: While participants produced isolated speech tasks, a planar beam of laser light, a high-speed camera, and image software calculated the number of particulates detected over time. This study compared airborne aerosols emitted by human participants at a distance of 2.54 cm between the laser sheet and the mouth.

RESULTS: Statistically significant increases in particulate count over ambient dust distribution for all speech sounds. When collapsed across loudness levels, emitted particles in vowel sounds were statistically greater than consonants, suggesting that mouth opening, as opposed to the place of vocal tract constriction or manner of sound production, might also be influential in the degree to which particulates become aerosolized during speech.

CONCLUSIONS: The results of this research will inform boundary conditions for computational models of aerosolized particulates during speech.

PMID:37423794 | DOI:10.1016/j.jvoice.2023.05.004

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Nevin Manimala Statistics

The relationship between health literacy and successful aging in elderly individuals with type 2 diabetes

Prim Care Diabetes. 2023 Jul 7:S1751-9918(23)00112-2. doi: 10.1016/j.pcd.2023.06.009. Online ahead of print.

ABSTRACT

OBJECTIVE: In the study, it was aimed to evaluate the relationship between health literacy and successful aging in elderly individuals with type 2 diabetes.

METHODS: This descriptive study was conducted with the participation of 415 elderly patients with type 2 diabetes who presented to the diabetics outpatient clinic between April-September 2021. The study data were collected through Identifying Information Form, Health Literacy Scale, and Successful Aging Scale. In the analysis of the data, descriptive statistics, Pearson correlation analysis, One-Way ANOVA, and student’s t test were used.

RESULTS: Health Literacy Scale total mean score of the elderly individuals was found as 55.50 ± 6.08, and their Successful Aging Scale total mean score was determined to be 38.91 ± 2.05. A positive correlation was found between Health Literacy Scale total mean score and Successful Aging Scale total mean score, while a negative relationship was determined between Successful Aging Scale mean score and HbA1c values (p < 0.001).

CONCLUSION: As a result of the study, it was concluded that elderly patients with type 2 diabetes who had high levels of health literacy had high levels of successful aging as well.

PMID:37423783 | DOI:10.1016/j.pcd.2023.06.009

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Nevin Manimala Statistics

Smartphone use affects gait performance, spinal kinematics and causes spinal musculoskeletal discomfort in young adults

Musculoskelet Sci Pract. 2023 Jul 5;66:102819. doi: 10.1016/j.msksp.2023.102819. Online ahead of print.

ABSTRACT

BACKGROUND: Smartphone use may lead to alterations in spinal kinematics and musculoskeletal discomfort.

OBJECTIVES: The aim of this study was to evaluate the effect of smartphone use on spinal kinematics, and to examine the relationship between smartphone addiction, spinal discomfort, and gait parameters.

DESIGN: Cross-Sectional Study.

METHODS: The study included 42 healthy adults aged 18-30 years. A photographic method was used for spinal kinematic evaluation in sitting, standing and at the end of a 3-min walk. GAITRite electronic walkway was used for spatiotemporal gait parameters. Smartphone addiction was evaluated with the Smartphone Addiction Scale – Short Version (SAS-SV). The Cornell Musculoskeletal System Discomfort Questionnaire (CMDQ) was used to evaluate feelings of discomfort and pain.

RESULTS: There was an increase in head, cervical, and thoracic flexion angles while sitting, standing, and at the end of a 3-min walk. Similarly, an increase in thoracolumbar and lumbar flexion angles was observed only in the sitting position (p < 0.05). While using a smartphone during walking, cadence, walking speed, step length decreased, while step duration and double support duration increased (p < 0.05). A statistically significant correlation was determined between the SAS-SV and CMDQ scores (p < 0.05).

CONCLUSION: The study showed that smartphone use has an impact on spinal kinematics during sitting, standing and at the end of a 3 min-walk, as well as on the spatiotemporal parameters of gait. This study suggest that smartphone addiction should be taken into consideration due to its potential to cause musculoskeletal discomfort and there may be a need to raise public awareness on this matter.

PMID:37422953 | DOI:10.1016/j.msksp.2023.102819

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Nevin Manimala Statistics

Patients’ attitudes towards using a question prompt list in community pharmacies

Patient Educ Couns. 2023 Jun 25;115:107862. doi: 10.1016/j.pec.2023.107862. Online ahead of print.

ABSTRACT

OBJECTIVE: To explore patients’ usage rate and perceived usefulness and benefits of a question prompt list (QPL) when collecting prescribed medication in community pharmacies.

METHODS: Data were collected in Swedish pharmacies using questionnaires and semi-structured interviews with patients. The Technology Acceptance Model (TAM) was used, and the outcomes were usage rate, factors impacting on use, and perceived ease of use, usefulness, and benefits of self-reported question-asking and self-perceived medication knowledge. Descriptive statistics and group comparisons were performed, and qualitative data were analyzed thematically with the TAM.

RESULTS: Out of 145 patients filling out the questionnaire, 72 (50.0%) reported they had used the QPL. Patients with new prescriptions and non-native Swedish speakers used the QPL more often (p = 0.03; p = 0.009, respectively). The QPL was quick to read (86.3%) and easy to understand (91.4%). Forty percent stated that they asked more questions, and self-reported users scored higher on self-perceived medication knowledge. In the interviews (n = 14), the QPL was described as an eye-opener as to what one could ask the pharmacist.

CONCLUSIONS: Patients were willing to use a QPL in community pharmacies.

PRACTICE IMPLICATIONS: A QPL in pharmacies might improve patients’ engagement medication knowledge, as well as showcase the expertise of pharmacists.

PMID:37422951 | DOI:10.1016/j.pec.2023.107862

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Nevin Manimala Statistics

Gut microbiome relationship with arrhythmias and conduction blocks: A two-sample Mendelian randomization study

J Electrocardiol. 2023 Jun 22;80:155-161. doi: 10.1016/j.jelectrocard.2023.06.006. Online ahead of print.

ABSTRACT

INTRODUCTION: Past research based on observations has suggested that the gut microbiome (GM) could play a role in developing arrhythmias and conduction blocks. Nonetheless, the nature of this association remains uncertain due to the potential for reverse causation and confounding factors in observational research. The aim of this investigation is to elucidate the causal relationship between GM and the development of arrhythmias as well as conduction blocks.

METHODS: This study collected summary statistics regarding GM, arrhythmias, and conduction blocks. Two-sample Mendelian randomization (MR) analysis was carried out employing various methods, with inverse variance weighted being the primary approach, followed by weighted median, simple mode, MR-Egger, and MR-PRESSO. Moreover, the MR findings were corroborated through multiple sensitivity analyses.

RESULTS: Among them, for atrial fibrillation and flutter (AF), phylum_Actinobacteria and genus_RuminococcaceaeUCG004 demonstrated a negative correlation, while order_Pasteurellales, family_Pasteurellaceae, and genus_Turicibacter were associated with an increased risk. In the case of paroxysmal tachycardia (PT), genus_Holdemania and genus_Roseburia were found to reduce risk. For atrioventricular block (AVB), order_Bifidobacteriales, family_Bifidobacteriaceae, and genus_Alistipes exhibited a negative correlation, whereas genus_CandidatusSoleaferrea showed a positive correlation. Concerning the left bundle-branch block (LBBB), family_Peptococcaceae appeared to decrease the risk, while genus_Flavonifractor was linked to an increased risk. Lastly, no causative GM was identified in the right bundle-branch block (RBBB) context.

CONCLUSION: We have uncovered potential causal links between some GM, arrhythmias, and conduction blocks. This insight may aid in designing microbiome-based interventions for these conditions and their risk factors in future trials. Additionally, it could facilitate the discovery of novel biomarkers for targeted prevention strategies.

PMID:37422943 | DOI:10.1016/j.jelectrocard.2023.06.006

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Nevin Manimala Statistics

Psychiatric changes after stereotactic laser amygdalohippocampotomy for medial temporal lobe epilepsy

Epilepsy Behav. 2023 Jul 7;145:109332. doi: 10.1016/j.yebeh.2023.109332. Online ahead of print.

ABSTRACT

PURPOSE: Stereotactic laser amygdalohippocampotomy (SLAH) is a minimally invasive surgical treatment for drug-resistant temporal lobe epilepsy (TLE) that has comparable rates of seizure freedom to traditional open resective TLE surgery. The objective of this study was to determine psychiatric outcome (i.e., depression and anxiety changes, psychosis) after SLAH, to explore possible contributory factors to these changes, and to determine the prevalence of de novo psychopathology.

METHODS: We explored mood and anxiety in 37 adult patients with TLE undergoing SLAH using the Beck psychiatric symptoms scales (i.e., Beck Depression Inventory-II [BDI-II] and Beck Anxiety Inventory [BAI]) preoperatively and 6 months following surgery. Multivariable regression analysis was conducted to identify predictors of worse depression or anxiety symptoms following SLAH. The prevalence of de novo psychopathology following SLAH was also determined.

RESULTS: We found a significant decrease in BDI-II (mean decline from 16.3 to 10.9, p = 0.004) and BAI (mean decline from 13.3 to 9.0, p = 0.045) scores following SLAH at the group level. While the rate of resolution of depression (from 62% to 49%) did not achieve statistical significance (p = 0.13, McNemar’s), the rate of resolution of anxiety (from 57% to 35%) was statistically significant (p = 0.03, McNemar’s). The de novo rate of psychopathology (i.e., new onset depression or anxiety) following SLAH was 1 of 7 (14%). Using a metric of meaningful change rather than complete symptom resolution, 16 of 37 (43%) patients experienced improvement in depression and 6 of 37 (16%) experienced worsening. For anxiety, 14 of 37 (38%) experienced meaningful improvement and 8 of 37 (22%) experienced worsening. Baseline performance on the Beck Scales was the only factor contributing to outcome status.

DISCUSSION: In one of the first studies to evaluate psychiatric outcomes after SLAH, we found promising overall trends toward stability or significant improvement in symptom burden at the group level for both depression and anxiety. There was also a significant improvement in clinical anxiety, though the decrease in clinical depression was not significant, likely owing to the limitations of sample size. SLAH may improve overall psychiatric symptoms, similarly to traditional resective TLE surgery, but de novo psychopathology and postoperative psychiatric morbidity remain significant issues, and larger samples are necessary to determine causal contributory factors.

PMID:37422933 | DOI:10.1016/j.yebeh.2023.109332

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Nevin Manimala Statistics

The impact of biostatistics on hazard characterization using in vitro developmental neurotoxicity assays

ALTEX. 2023 Jun 27. doi: 10.14573/altex.2210171. Online ahead of print.

ABSTRACT

In chemical safety assessment, benchmark concentrations (BMC) and their associated uncertainty are needed for the toxicological evaluation of in vitro data sets. A BMC estimation is derived from concentration-response modelling and results from various statistical decisions, which depend on factors such as experimental design and assay endpoint features. In current data practice, the experimenter is often responsible for the data analysis and therefore relies on statistical software often without being aware of the software default settings and how they can impact the outputs of data analysis. To provide more insight into how statistical decision-making can influence the outcomes of data analysis and interpretation, we have developed an automatic platform that includes statistical methods for BMC estimation, a novel endpoint-specific hazard classification system, and routines that flag data sets that are outside the applicability domain for an automatic data evaluation. We used case studies on a large dataset produced by a developmental neurotoxicity (DNT) in vitro battery (DNT IVB). Here we focused on the BMC and its confidence interval (CI) estimation as well as on final hazard classification. We identified five crucial statistical decisions the experimenter must make during data analysis: choice of replicate averaging, response data normalization, regression modelling, BMC and CI estimation, and choice of benchmark response levels. The insights gained in are intended to raise more awareness among experimenters on the importance of statistical decisions and methods but also to demonstrate how important fit-for-purpose, internationally harmonized and accepted data evaluation and analysis procedures are for objective hazard classification.

PMID:37422925 | DOI:10.14573/altex.2210171

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Nevin Manimala Statistics

How Does Tobacco Use Affect the Cognition of Older Adults? A Propensity Score Matching Analysis based on a Large-Scale Survey

Nicotine Tob Res. 2023 Jul 9:ntad117. doi: 10.1093/ntr/ntad117. Online ahead of print.

ABSTRACT

INTRODUCTION: Tobacco is a well-established risk factor for cancer, but its association with other morbidities needs consideration. The low-income and middle-income countries with unprecedented demographic transformation lack evidence on tobacco use and its impact on cognitive health.

METHODS: Using a propensity score matching approach, we utilized data from the Longitudinal Ageing Study of India. Study employed 1:1 nearest neighbor matching with the replacement methodology. We estimated the odds of poor cognitive score and tobacco use among older adults based on five different models for ever tobacco user, former tobacco user, current tobacco user, current smokers, and current smokeless tobacco users with reference to never tobacco users.

RESULTS: The estimated average treatment effect (ATT) for treated and the untreated group has shown a higher likelihood of cognitive decline among ever (OR -0.26; 95%CI -0.43 to -0.09), current (OR -0.28; 95%CI -0.45 to -0.10) and former (OR -0.53; 95%CI -0.87 to -0.19) tobacco users compared to never tobacco users compared to never tobacco users. Finding further suggests that odds of lower cognitive score among older adults who were smoker (OR -0.53; 95%CI -0.87 to -0.19) and smokeless tobacco user (OR -0.22; 95%CI -0.43 to -0.01).

CONCLUSIONS: Interventions designed to prevent and prolong the incidence of cognitive impairment should focus on limiting the use of tobacco. Strategies under tobacco-free generation initiative should be amplified in order to prevent future generation from productivity loss and to promote healthy ageing and premature deaths.

IMPLICATIONS: Evidence of a definitive association between tobacco consumption and cognition among older adults is sporadic in low-income and middle-income countries (LMICs). Though tobacco is a risk factor for various diseases including cancer, the extent of its impact on cognitive health among older population is limited. This study contributes to existing literature by highlighting poor cognitive outcomes among older adults who smoke tobacco and consume smokeless tobacco as compared to never tobacco users. Our findings emphasize the need to accelerate tobacco-free generation efforts in LMICs to reach a higher quality of life and active ageing in pursuit of achieving the sustainable development goal of ‘good health and well-being’.

PMID:37422916 | DOI:10.1093/ntr/ntad117

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Nevin Manimala Statistics

Predictive performance of radiomics for peritoneal metastasis in patients with gastric cancer: a meta-analysis and radiomics quality assessment

J Cancer Res Clin Oncol. 2023 Jul 9. doi: 10.1007/s00432-023-05096-0. Online ahead of print.

ABSTRACT

PURPOSE: The purpose of this meta-analysis is to systematically review the diagnostic performance of radiomic techniques in predicting peritoneal metastasis in patients with gastric cancer, and to evaluate the quality of current research.

METHODS: We searched PubMed, Web of Science, EBSCO, Embase, and Cochrane databases for relevant studies up to April 3, 2023. Data extraction and quality evaluation were performed by two independent reviewers. Then we performed statistical analysis, including plotting the forest plot and summary receiver operating characteristic (SROC) curve, and source of heterogeneity analysis, through the MIDAS module in Stata 15. We performed meta-regression and subgroup analyses to analyze the sources of heterogeneity. Using the QUADAS-2 scale and the RQS scale to assess the quality of retrieved studies.

RESULTS: Ten studies with 6199 patients were finally included in our meta-analysis. Pooled sensitivity and specificity were 0.77 (95% confidence interval [CI]: 0.66, 0.86), and 0.88 (95% CI 0.80, 0.93), respectively. The overall AUC was 0.89 (95% CI 0.86, 0.92). The heterogeneity of this meta-analysis was high, with I2 = 88% (95% CI 75,100). The result of meta-regression showed that QUADAS-2 results, RQS results and machine learning method led to heterogeneity in sensitivity and specificity (P < 0.05). Furthermore, the image segmentation area and the presence or absence of combined clinical factors were associated with sensitivity heterogeneity and specificity heterogeneity, respectively.

CONCLUSION: Undoubtedly, radiomics has potential value in diagnosing peritoneal metastasis of gastric cancer, but the quality of current research is inconsistent, and more standardized and high-quality research is still needed in the future to achieve the transformation of radiomics results into clinical applications.

PMID:37422882 | DOI:10.1007/s00432-023-05096-0

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Nevin Manimala Statistics

Increasing the collection flow rate to 2 mL/min is effective and reduces the procedure time in off-line photopheresis

Transfusion. 2023 Jul 9. doi: 10.1111/trf.17469. Online ahead of print.

ABSTRACT

BACKGROUND: Extracorporeal photopheresis (ECP) treatment, mostly based on apheresis technology, is used for immunomodulation in various diseases such as cutaneous T-cell lymphoma, graft versus host disease and other (auto)immune disorders. The aim of this study was to collect high cell counts and purity in shorter procedure times using an ECP off-line system with an increased collection flow rate of 2 mL/min to a target volume of 200 mL buffy coat.

STUDY DESIGN AND METHODS: In this prospective study, data of routinely performed off-line photopheresis treatments were collected and analyzed at the Central Institute for Blood Transfusion & Department of Immunology (ZIB) of the Tirol Kliniken, to assess absolute cell counts and procedure times and to calculate collection efficiencies (CE2).

RESULTS: A total of 22 patients participated in this study. The processed blood volume was 4312 mL, the collection time 120 min, overall procedure time 157 min and the absolute cell counts of treated white blood cells (WBC) and mononuclear cells (MNC) were 5.0 and 4.3 × 109 respectively (median values). The calculated CE2 for WBC and MNC was 21.1% and 58.5%, the proportion of treated MNCs of the total number of MNCs present was 55.0%.

CONCLUSION: The data presented in this study show high therapeutically effective cell counts collected with a high MNC purity within a shorter overall collection/procedure time due to an increased collection flow rate.

PMID:37422880 | DOI:10.1111/trf.17469