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Nevin Manimala Statistics

Comparative effectiveness of stent-assisted coiling and Woven EndoBridge embolization for the treatment of unruptured wide-neck bifurcation intracranial aneurysms

J Neurosurg. 2022 Nov 4:1-7. doi: 10.3171/2022.10.JNS221138. Online ahead of print.

ABSTRACT

OBJECTIVE: Woven EndoBridge (WEB) intrasaccular flow disruptors and stent-assisted coiling (SAC) are viable endovascular treatment options for wide-neck bifurcation intracranial aneurysms (WNBAs). Data directly comparing these two treatment options are limited. The authors aimed to compare radiographic occlusion rates and complication profiles between patients who received WEB and those who received SAC for WNBAs.

METHODS: Retrospective review of a prospectively maintained cerebrovascular procedural database was performed at a single academic medical center between 2017 and 2021. Patients were included if they underwent WEB embolization or SAC of an unruptured WNBA. SAC patients were propensity matched to WEB-embolized patients on the basis of aneurysm morphology. Complete and adequate (complete occlusion or residual neck remnant) occlusion rates at last angiographic follow-up, as well as periprocedural complications, were compared between the two groups. A cost comparison was performed for a typical 5-mm WNBA treated with WEB versus SAC by using manufacturer-suggested retail prices.

RESULTS: Thirty-five WEB and 70 SAC patients were included. Aneurysm width, neck size, and dome-to-neck ratio were comparable between groups. Follow-up duration was significantly longer in the SAC group (median [interquartile range] 545 [202-834] days vs 228 [177-494] days, p < 0.001, Mann-Whitney U-test). Complete (66% of WEB patients vs 69% of SAC patients) and adequate (94% WEB vs 91% SAC) occlusion rates were similar between groups at the last available angiographic follow-up (p = 0.744, chi-square test). Complete occlusion rates were comparable on Cox regression analysis after correction for follow-up duration (hazard ratio 1.5, 95% CI 0.8-3.1). Average time to residual aneurysm or neck formation was not statistically different between treatment groups (613 days for SAC patients vs 347 days for WEB patients, p = 0.225, log-rank test). Periprocedural complications trended higher in the SAC group (0% WEB vs 9% SAC, p = 0.175, Fisher exact test), although this finding was not significant. The equipment costs for a typical SAC case were estimated at $18,950, whereas the costs for a typical WEB device case were estimated at $18,630.

CONCLUSIONS: Midterm complete and adequate occlusion rates were similar between patients treated with WEB and those treated with SAC. Given these comparable outcomes, there may be equipoise in treatment options for WNBAs.

PMID:36334292 | DOI:10.3171/2022.10.JNS221138

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Nevin Manimala Statistics

Influence of occlusion and mandibular position on foot support and head posture in adult patients

Cranio. 2022 Nov 5:1-8. doi: 10.1080/08869634.2022.2140245. Online ahead of print.

ABSTRACT

OBJECTIVE: To study postural changes, taking into account different mandibular positions and the cephalic and plantar body segments.

METHODS: A cross-sectional, descriptive, clinical, and observational study was carried out on 76 patients, (mean age 28.79 years), in whom body posture and plantar support were evaluated in the maximum mandibular intercuspal position and the mandibular rest position without dental contact.

RESULTS: When the mandibular position was altered, 71.01% of the patients showed changes in the bipupillary line (p = 0.008), while those who did not show such changes did, however, show changes in plantar support. More than 85% of the sample experienced alterations in the plantar plane when the mandibular position was changed, with statistically significant results (p < 0.001).

CONCLUSION: There is a positive relationship between the different segments in body posture. In the sample, changes in plantar support with respect to the different mandibular positions were noticeable.

PMID:36334277 | DOI:10.1080/08869634.2022.2140245

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Nevin Manimala Statistics

Which Way? Indigenous-led smoking cessation care: Knowledge, attitudes and practices of Aboriginal and Torres Strait Islander Health Workers and Practitioners – a national cross-sectional survey

Nicotine Tob Res. 2022 Nov 5:ntac256. doi: 10.1093/ntr/ntac256. Online ahead of print.

ABSTRACT

INTRODUCTION: Tobacco is the leading preventable cause of morbidity and mortality for Aboriginal and Torres Strait Islander people. Accordingly, the provision of culturally safe and effective smoking cessation strategies are crucial. While previous research has suggested Aboriginal Health Workers/Practitioners are well placed to provide smoking cessation care, no research to date has explored the workforce knowledge, attitudes and practices in offering best practice cessation care.

METHODS: A cross-sectional study was conducted among Aboriginal Health Workers/Practitioners from June to September 2021. Descriptive and inferential statistics were conducted to examine participant characteristics, provision of smoking cessation care, and explore the factors associated with smoking cessation care.

RESULTS: Out of 1052 registered Aboriginal Health Workers/Practitioners, 256 participants completed the full survey (24.3%). Smoking cessation counselling was always provided by 41.9%; provided some of the time by 42.4%, and never provided by 12.9%. Combination NRT and Quitline referral were always offered by 23.1% and 44.9% of participants respectively. Those that received training, felt smoking cessation care was part of their role, and were based in Aboriginal Community Controlled Health Organisation were significantly more likely to offer best practice smoking cessation care.

CONCLUSION: Aboriginal Health Workers/Practitioners and Aboriginal Community Controlled Health Organisations play a critical role in delivering high quality, evidence based and culturally safe care to Aboriginal and Torres Strait Islander people. Aboriginal Health Workers/Practitioners are well placed to offer smoking cessation care. Ongoing funding and implementation of a targeted smoking cessation workforce with appropriate training and resources are urgently required.

IMPLICATIONS: Aboriginal Health Workers/Practitioners are well placed to offer culturally safe, best practice smoking cessation care. However, due to the magnitude and complexity of Aboriginal Health Workers/Practitioners roles, it is challenging for smoking cessation care to be consistently and feasibly integrated into usual care. Acknowledging Australia’s National Preventative Health Strategy target of 27% or less Aboriginal and Torres Strait Islander people smoking by 2030, urgent investment and resourcing must be directed to building a skilled workforce to support quitting and maintaining smokefree behaviours, ensuring equitable access to smoking cessation care for Aboriginal and Torres Strait Islander peoples.

PMID:36334273 | DOI:10.1093/ntr/ntac256

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Nevin Manimala Statistics

Social and Psychosocial Determinants of Racial and Ethnic Differences in Cardiovascular Health in the United States Population

Circulation. 2022 Nov 5. doi: 10.1161/CIRCULATIONAHA.122.061991. Online ahead of print.

ABSTRACT

Background: Social and psychosocial factors are associated with cardiovascular health (CVH). Our objective was to examine the contributions of individual-level social and psychosocial factors to racial and ethnic differences in population CVH in the National Health and Nutrition Examination Surveys (NHANES) 2011-2018, to inform strategies to mitigate CVH inequities. Methods: In NHANES participants aged ≥20 years, Kitagawa-Blinder-Oaxaca decomposition estimated the statistical contribution of individual-level factors (education, income, food security, marital status, health insurance, place of birth, depression) to racial and ethnic differences in population mean CVH score (range 0-14, accounting for diet, smoking, physical activity, body mass index, blood pressure, cholesterol, blood glucose) among Hispanic, non-Hispanic Asian, or non-Hispanic Black adults compared with non-Hispanic White adults. Results: Among 16,172 participants (representing 255 million US adults), 24% were Hispanic, 12% non-Hispanic Asian, 23% non-Hispanic Black, and 41% non-Hispanic White. Among males, mean (standard error [SE]) CVH score was 7.45 (2.3) in Hispanic, 8.71 (2.2) in non-Hispanic Asian, 7.48 (2.4) in non-Hispanic Black, and 7.58 (2.3) in non-Hispanic White adults. In Kitagawa-Blinder-Oaxaca decomposition, education explained the largest component of CVH differences among males (if distribution of education were similar to Non-Hispanic White, CVH score would be 0.36 [0.04] points higher in Hispanic, 0.24 [0.04] points lower in Non-Hispanic Asian, and 0.23 [0.03] points higher in Non-Hispanic Black, p<0.05). Among females, mean (SE) CVH score was 8.03 (2.4) in Hispanic, 9.34 (2.1) in non-Hispanic Asian, 7.43 (2.3) in non-Hispanic Black, and 8.00 (2.5) in non-Hispanic White adults. Education explained the largest component of CVH difference in Non-Hispanic Black females (if distribution of education were similar to NH White, CVH score would be 0.17 [0.03] points higher in NH Black, p<0.05). Place of birth (US-born versus born outside the US) explained the largest component of CVH difference in Hispanic and Non-Hispanic Asian females (if distribution of place of birth were similar to Non-Hispanic White, CVH score would be 0.36 [0.07] points lower and 0.49 [0.16] points lower, respectively, p<0.05). Conclusions: Education and place of birth confer the largest statistical contributions to the racial and ethnic differences in mean CVH score among US adults.

PMID:36334260 | DOI:10.1161/CIRCULATIONAHA.122.061991

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Normalization of Cardiac Function After Bariatric Surgery Is Related to Autonomic Function and Vitamin D

Obes Surg. 2022 Nov 5. doi: 10.1007/s11695-022-06336-x. Online ahead of print.

ABSTRACT

PURPOSE: Subclinical cardiac dysfunction is common in patients with obesity. Bariatric surgery is associated with normalization of subclinical cardiac function in 50% of the patients with obesity. The aim of this study was to identify predictors for a lack of improvement of subclinical cardiac dysfunction 1-year post-bariatric surgery.

METHODS: Patients who were referred for bariatric surgery were enrolled in a longitudinal study. Inclusion criteria were age 35-65 years and BMI ≥ 35 kg/m2. Patients with a suspicion of or known cardiovascular disease were excluded. Conventional and advanced echocardiography, Holter monitoring, and blood tests were performed pre- and 1-year post-bariatric surgery. Subclinical cardiac dysfunction was defined as either a reduced left ventricular ejection fraction, decreased global longitudinal strain (GLS), diastolic dysfunction, arrhythmia, or an increased BNP or hs Troponin I.

RESULTS: A total of 99 patients were included of whom 59 patients had cardiac dysfunction at baseline. Seventy-two patients completed the 1-year follow-up after bariatric surgery. There was a significant reduction in weight and cardiovascular risk factors. Parameters of cardiac function, such as GLS, improved. However, in 20 patients cardiac dysfunction persisted. Multivariate analysis identified a decreased heart rate variability (which is a measure of autonomic function), and a decreased vitamin D pre-surgery as predictors for subclinical cardiac dysfunction after bariatric surgery.

CONCLUSION: Although there was an overall improvement of cardiac function 1-year post-bariatric surgery, autonomic dysfunction and a decreased vitamin D pre-bariatric surgery were predictors for a lack of improvement of subclinical cardiac dysfunction.

PMID:36334252 | DOI:10.1007/s11695-022-06336-x

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Nevin Manimala Statistics

A Novel Nomogram and Online Calculator for Predicting the Risk of Obesity Hypoventilation Syndrome in Bariatric Surgery Candidates

Obes Surg. 2022 Nov 5. doi: 10.1007/s11695-022-06324-1. Online ahead of print.

ABSTRACT

BACKGROUND: Obesity hypoventilation syndrome (OHS) is frequently misdiagnosed and undertreated, increasing the risk of perioperative complications. We aimed to determine the predictors of OHS and to develop and validate a novel nomogram and online calculator for identifying patients at risk of OHS in bariatric surgery candidates.

METHODS: We retrospectively analyzed the data of patients undergoing bariatric surgery between March 2017 and June 2020. Predictors were identified using univariate and multivariate analyses to establish the nomogram. The discriminative ability, calibration, and clinical value of the nomograms were tested using C-statistics, calibration plots, and decision curve analysis. The nomogram was internally validated using bootstrap resampling.

RESULTS: A total of 577 patients were enrolled, and OHS was presented in 17.9% (103/577). Body mass index (BMI) (odds ratio [OR], 1.11; 95% confidence interval (CI), 1.04-1.18; p = 0.001), neck circumference (OR, 1.09; 95% CI, 1.01-1.18; p = 0.035), type 2 diabetes (T2D) (OR, 2.02; 95% CI, 1.17-3.45; p = 0.011), serum bicarbonate (OR, 1.47; 95% CI, 1.30-1.67; p < 0.001), and C-reactive protein (CRP) (OR, 1.03; 95% CI, 1.01-1.06; p = 0.017) were independent risk factors for OHS and incorporated to develop the nomogram. The nomogram revealed good discrimination, with a C-index of 0.830 (95% CI: 0.784-0.876) (0.8227 through internal validation), and good calibration. Decision curve analysis further confirmed the nomogram’s clinical usefulness.

CONCLUSIONS: The novel nomogram and online calculator provided an excellent preoperative individualized prediction of OHS in patients undergoing bariatric surgery, hereby potentially assisting clinicians and surgeons in the early detection and intensive monitoring of OHS.

PMID:36334251 | DOI:10.1007/s11695-022-06324-1

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Nevin Manimala Statistics

Health Literacy, Health Numeracy, and Cancer Screening Patterns in the Zuni Pueblo: Insights from and Limitations of “Standard” Questions

J Cancer Educ. 2022 Nov 5. doi: 10.1007/s13187-022-02227-y. Online ahead of print.

ABSTRACT

American Indians experience disparities in cancer screening, stage at disease diagnoses, and 5-year cancer survival. This study investigates how health literacy and health numeracy may be linked to cancer screening behaviors of Zuni Pueblo members using a survey exploring screening behaviors related to breast, cervical, and colorectal cancers. As part of a larger community-based cancer prevention and control project, Zuni Health Initiative staff conducted surveys from October 2020 through April 2021 of 281 participants (men ages 50-75 and women ages 21-75) from the Zuni Pueblo. Bivariate and multivariable analyses investigated associations between health literacy/numeracy measures and cancer screening behaviors. Bivariate analyses showed some associations between distinct measures of health literacy/numeracy and colorectal cancer (CRC) screening, including both colonoscopy (health literacy) and fecal occult blood testing (FOBT) (health numeracy), as well as cervical cancer screening (health literacy). There were no statistically significant associations between health literacy/numeracy measures and mammogram screening for breast cancer. In multivariable analyses, there were no consistent patterns between health literacy/numeracy and screening for any cancer. There are some individual findings worth noting, such as statistically significant findings for health numeracy and FOBT (those reporting lower health numeracy were less likely to report FOBT). An important finding of this study is that questions used to assess health literacy/numeracy did not identify associations aligned with previous research. We reflect on the ways the “standard” questions may not be sufficiently tailored to the Zuni experience and may contribute to health equity barriers.

PMID:36334245 | DOI:10.1007/s13187-022-02227-y

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Nevin Manimala Statistics

Implementation of a Post-Encounter Telephone Call at a Student-Run Free Clinic to Promote Preventive Medicine and Early Clinical Education

J Community Health. 2022 Nov 5. doi: 10.1007/s10900-022-01164-7. Online ahead of print.

ABSTRACT

The goals of this study were to determine the completion rates of patient order forms at the Cooper Rowan Clinic, a student-run free clinic, and to implement the use of a post-encounter phone call to improve completion rates, preventive medicine, and medical student clinical involvement. 151 patients completed a pre-intervention questionnaire before their visit. The questionnaire collected information regarding successfully completed order forms. First-year students were trained to perform phone calls and called their patients for five months. 205 patients then completed a post-intervention questionnaire. Dependent variables included completion rates for laboratory studies, specialty referrals, imaging studies and miscellaneous tests. Chi-squared tests were performed. Although the completion rates for laboratory testing (pre = 73.7% vs post = 81.1%), referrals (pre = 50.0% vs post = 65.1%) and imaging studies (pre = 60.9% vs post = 71.7%) increased, the results were not statistically significant. The completion rate of miscellaneous testing (pre = 41.7% vs post = 100.0%) increased following the implementation and was statistically significant. When patients were stratified to those who received a phone call, completion rates of referrals (73.0%), laboratory testing (86.1%), imaging studies (80.5%), and miscellaneous studies (100.0%) substantially increased. Although not statistically significant except for miscellaneous studies, there was an overall increase in completion in all categories. Further evidence to suggest that phone calls improved order completion was the substantial increase in completion rates in patients who received a call. The implementation improves completion of orders which could enhance preventive measures within the clinic. Additionally, it provides an opportunity for earlier student clinical exposure through direct patient contact.

PMID:36334217 | DOI:10.1007/s10900-022-01164-7

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Nevin Manimala Statistics

Machine learning prediction of empirical polarity using SMILES encoding of organic solvents

Mol Divers. 2022 Nov 5. doi: 10.1007/s11030-022-10559-6. Online ahead of print.

ABSTRACT

Machine learning based statistical models have played a significant role in increasing the speed and accuracy with which the chemical and physical properties of chemical compounds can be predicted as compared to the experimental, and traditional ab initio and quantum mechanical approaches. The transformative impact that these techniques have, in the field of chemical sciences has completely changed the way experiments are designed. The last decade has seen the prominence of computer-aided molecular design based on machine learning algorithms. The major challenge has been the generation of machine-readable data in the form of descriptors and observations for training the model, which can again be time-consuming and computationally expensive if atomic coordinates based molecular encoding approach is used. In this study, we have tried to solve this problem using SMILES representation of molecules for generating various topological, physicochemical, electronic and steric descriptors using open-source cheminformatics packages. With the aid of the data generated using these packages, we have been able to develop a simple and explainable quantitative structure property relationship model using artificial neural network based on 7 numerical descriptors and 1 categorical descriptor for predicting the empirical polarity of a wide diversity of organic solvents. Since polarity is the representation of various solute-solvent and solvent-solvent interactions taking place in an organic transformation, its intuition beforehand will definitely help a chemist in a better experimental design. An ANN algorithm based on 8 descriptors was successfully employed to predict the ET(30) values of organic solvents.

PMID:36334165 | DOI:10.1007/s11030-022-10559-6

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Nevin Manimala Statistics

Evaluation of inguinal hernia repair using post-operative pain and quality of life metrics

Hernia. 2022 Nov 5. doi: 10.1007/s10029-022-02701-y. Online ahead of print.

ABSTRACT

BACKGROUND AND PURPOSE: Elective inguinal hernia repair is a ubiquitous procedure that carries risks; chronic pain and impacts on quality of life (QoL) must be considered when advising patients around repair. The length of time from surgery date and impacts on quality of life are often limited to only a few years of follow-up and despite hernia repair being quite common, long-term outcomes are not often reported.

METHODS: A cohort of patients who had received Lichtenstein inguinal hernia repair over the previous 10 years were contacted and surveyed using the Brief Pain Inventory Short Form (BPI) to assess chronic pain and its effects on their QoL. Patient and operative factors were correlated with pain through linear regression and t-test analysis provided statistical significance for mean comparisons (P < 0.05).

RESULTS: The rate of chronic pain was 17.2% with recurrence of 3.1% at an average post-operative interval of 5.84 years. Of the various metrics compared between groups, age was one of the only significant predictors of chronic pain with younger patients reporting higher pain. Further time from surgery also translated to significantly less pain with a difference of 1.3 years. BPI respondents identified pain that interfered to varying degrees in different aspects of life but had relatively low average magnitudes (range: 1.82/10-2.91/10).

CONCLUSIONS: These long-term considerations of post-surgical impact should be considered alongside potential benefits when advising patients about surgery and may help moderate post-operative expectations to optimize the outcome of common inguinal hernia repairs.

PMID:36334162 | DOI:10.1007/s10029-022-02701-y