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Nevin Manimala Statistics

Importance of Entrance Testing in Prediction of Academic Difficulty in the First Semester of a Graduate Doctor of Physical Therapy Program

J Allied Health. 2023 Summer;52(2):e31-e37.

ABSTRACT

Entrance testing has been found to predict passing on professional licensure examinations in various allied health fields. Physical therapy (PT) programs do not consistently use an entrance test for assessment of an applicant’s prerequisite competence. The purpose of this study was to assess whether a correlation existed between a prerequisite entrance test and academic success measured by grade point average (GPA) in first-semester PT students. A 140-question entrance test assessing prerequisite knowledge was administered prior to matriculation to two consecutive cohorts at a medium-sized PT program in the southwestern United States. GPA was collected following completion of the first didactic semester. Inferential statistics were used including the Pearson product moment correlational coefficient (r) and a regression model. 108 students completed the entrance test and one semester of coursework. The entrance test scores ranged from 58.33-100, with a mean score of 79.71. There was a significant medium correlation between the two variables (r=0.423, p<0.001), and the exam and age contributed to the regression model. Entrance tests may provide programs with a more content-specific evaluation of graduate school readiness while providing administrators and faculty information regarding didactic areas of concern with which students may struggle.

PMID:37269035

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Nevin Manimala Statistics

Are Grit Scale Scores or Connor-Davidson Resilience Scale Scores Correlated with Career Achievements Among Physical Therapy Program Graduates?

J Allied Health. 2023 Summer;52(2):141-148.

ABSTRACT

AIMS: This study examined how the qualities of grit and resilience correlated with career achievements in physical therapists. The purpose of this study was to determine if select career achievements were correlated with 1) Original Grit Scale (Grit-O) scores, 2) Short Grit Scale (Grit-S) scores, or 3) Connor-Davidson Resilience Scale (CD-RISC) scores among Mayo Clinic School of Health Sciences Physical Therapy Program graduates from 2000-2018.

METHODS: Cross-sectional research design. Participants were 212 graduates between 2000 and 2018, inclusive. Participants completed the Grit-O, Grit-S, and CD-RISC scales and reported career achievements. Descriptive statistics were used to summarize the demographics, career achievements, grit, and resilience of the subjects. Point biserial and partial correlations were used to examine associations between Grit-O and Grit-S subscales, CD-RISC scores, and career achievements.

RESULTS: When controlled for gender and time since graduation, there were significant positive relationships between Grit-O Perseverance of Effort and 1) publication in a peer-reviewed journal and 2) attainment of an additional degree. Biological males were significantly more likely to have reported certain career achievements.

CONCLUSION: Few of the expected relationships were found, possibly due to a lack of true relationships, a homogeneous population, ceiling effect, or inaccurate self-reports.

PMID:37269033

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Nevin Manimala Statistics

Effect of a First Clinical Experience on Physical Therapy Students’ Perception of the Importance of Obtaining and Assessing Blood Pressure

J Allied Health. 2023 Summer;52(2):127-135.

ABSTRACT

AIMS: The purpose of this mixed-methods study was to investigate the effect of a first clinical experience on student perception of the importance of obtaining and assessing blood pressure (BP).

METHODS: Fifty-eight students preparing for their first clinical experiences were recruited from three New York State physical therapy programs. Student experience obtaining BP during a first clinical experience was investigated using online anonymous surveys and focus groups. The pre survey was administered at 2 weeks before the first clinical experience, and a post survey and focus group were complete 3 weeks after.

RESULTS: Statistically significant decline was found in student perceptions of the importance and likelihood of obtaining and assessing BP following a first clinical experience. Qualitatively, three themes emerged (1) Being a student and agency including reluctance to independently initiate practices; (2) influence of clinic norms such as availability of equipment and consistency of BP monitoring; and (3) personal confidence obtaining, assessing, and interpreting BP influenced by exposure to obtaining, assessing, and interpreting BP.

CONCLUSION: Clinical education appears to have significant influence on students’ perception of the importance of BP assessment. If students encounter and adopt practices deviating from didactic instruction reflecting professional standards, it can expose patients and practitioners to unnecessary risk. Faculty can use these results to better appreciate students’ first clinical experiences and foster agency by discussing practice norms.

PMID:37269031

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Nevin Manimala Statistics

Interprofessional Perceptions of Diversity, Equity, Inclusion, Cultural Competence, and Humility Among Students and Faculty: A Mixed-Methods Study

J Allied Health. 2023 Summer;52(2):89-96.

ABSTRACT

BACKGROUND: An urgent educational need is to examine the current gaps in cultural competence/humility, diversity, equity, inclusion, and accessibility (DEIA) that may significantly affect the teaching and learning environments among students/faculty. This mixed-methods study examined the current level of cultural competemility and perceptions of diversity, equity, and inclusion (DEI)-related challenges and recommendations among students/faculty of health professions.

METHODS: Students and faculty completed a survey including the Inventory for Assessing the Process of Cultural Competemility Among Healthcare Professionals (IAPCC-HCP©) and open-ended questions on their DEI perceptions and needs. Data were analyzed via descriptive statistics and independent t-tests. Qualitative data were coded using thematic content analysis.

OUTCOMES: A total of 100 participants (64 students, 38 faculty) completed the survey. The majority identified as Caucasian or non-Hispanic White and female, and were satisfied with DEIA-related school-level initiatives and familiar with how to use pronouns to reflect all genders. Compared to students, faculty scored slightly higher, although not significantly, in five of six domains, including Cultural Humility, Cultural Awareness, Culture Skill, Cultural Encounters and Cultural Desire. Participants shared their need to address: 1) DEIA gaps in knowledge and Schools of Health Professions curriculum; 2) involvement of students; 3) racism, biases, and discrimination; and 4) recognition of underrepresented groups. Training needs were in the areas of 1) DEIA assessment and training for students and faculty; 2) DEIA school activities; 3) DEIA-informed policies; and 4) modifications to clinical education.

CONCLUSION: The faculty more than students expressed the need to enhance their DEI and cultural knowledge. Our findings can guide further development of educational activities and school-level DEI initiatives in schools of health professions.

PMID:37269026

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Nevin Manimala Statistics

Right colon cancer: The influence of specific location on recurrence and survival

Cancer Treat Res Commun. 2023 May 25;36:100724. doi: 10.1016/j.ctarc.2023.100724. Online ahead of print.

ABSTRACT

AIM: This study aimed to investigate whether the site of the tumour within the right colon affects survival in patients who underwent right colectomy for colon cancer.

METHODS: An observational retrospective longitudinal study was performed in patients who underwent right colectomy for non-metastatic, invasive right-sided colon cancer. Patients were categorized into two groups based on tumour location: (i) caecum and ascending colon; (ii) hepatic flexure and proximal transverse colon. Demographic and clinical features were characterized, and a survival analysis was performed.

RESULTS: Of the 198 patients enroled in the study, 134 (67.8%) had caecal or ascending colon cancer and 64 (32.3%) had hepatic flexure or transverse colon cancer. Seventy (35.4%) were female and the mean age at the time of surgery was 71.6 (SD 11.4). The groups were comparable with respect to the number of lymph nodes sampled, the pTNM stage, the histological differentiation grade and the likelihood of patients receiving adjuvant chemotherapy. Recurrence rate was nearly twice as high in the hepatic flexure and proximal transverse colon group (12.5% vs 6.7%), but this difference was not statistically significant (p = 0.174). Kaplan-Meier analysis showed no differences in disease-free (p = 0.255) and overall survival (p = 0.258) between the groups.

CONCLUSION: In our population, specific location of right-sided colon cancers does not appear to have an influence on survival. Further investigation is needed to determine if tumour subsite has an impact on the recurrence rate, and whether it should be considered in defining prognosis and treatment.

PMID:37267659 | DOI:10.1016/j.ctarc.2023.100724

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Nevin Manimala Statistics

Prognostic effect of preoperative Controlling Nutritional Status score in patients with locally advanced rectal cancer: A two-center, retrospective study

Nutrition. 2023 May 13;112:112078. doi: 10.1016/j.nut.2023.112078. Online ahead of print.

ABSTRACT

OBJECTIVES: This study aimed to identify the prognosis relevant to the Controlling Nutritional Status (CONUT) score in locally advanced rectal cancer patients who were treated with neoadjuvant chemoradiotherapy before radical surgery.

METHODS: From a retrospective database of 568 patients undergoing radical surgery for rectal cancer at two Chinese institutions between 2012 and 2022, data for 300 patients with locally advanced rectal cancer were identified. The optimal cutoff value for the CONUT score in predicting overall survival (OS) was determined using X-tile software. The associations of the CONUT score with the recurrent metastasis and clinicopathologic parameters were analyzed. The CONUT score’s ability to predict OS was also compared with other prognostic markers. Univariate and multivariate Cox regression analysis for OS was performed. Subgroup analysis was conducted to evaluate further the CONUT score’s predicting value.

RESULTS: The optimal CONUT score cutoff value was determined as 5 according to X-tile. Patients were divided into CONUT-high (CONUT score ≥ 5) and CONUT-low (CONUT score < 5) groups. CONUT score is significantly correlated with hemoglobin, globulin, and platelets. Time-dependent receiver operating characteristic of the CONUT score predicting OS outperformed all common prognostic markers. Multivariate Cox regression analysis identified CONUT score as an independent prognostic factor for OS (hazard ratio = 5.701; 95% CI, 2.336-13.914; P < 0.001). In the subgroups of age, sex, carcinoembryonic antigen, ypTNM, and tumor response status, significant statistical differences can be observed between CONUT-high and -low.

CONCLUSIONS: The present study finds that the preoperative CONUT score may be a useful prognostic indicator in clinical scenarios.

PMID:37267656 | DOI:10.1016/j.nut.2023.112078

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Nevin Manimala Statistics

Identifying Neural Signatures of Dopamine Signaling with Machine Learning

ACS Chem Neurosci. 2023 Jun 2. doi: 10.1021/acschemneuro.3c00001. Online ahead of print.

ABSTRACT

The emergence of new tools to image neurotransmitters, neuromodulators, and neuropeptides has transformed our understanding of the role of neurochemistry in brain development and cognition, yet analysis of this new dimension of neurobiological information remains challenging. Here, we image dopamine modulation in striatal brain tissue slices with near-infrared catecholamine nanosensors (nIRCat) and implement machine learning to determine which features of dopamine modulation are unique to changes in stimulation strength, and to different neuroanatomical regions. We trained a support vector machine and a random forest classifier to decide whether the recordings were made from the dorsolateral striatum (DLS) versus the dorsomedial striatum (DMS) and find that machine learning is able to accurately distinguish dopamine release that occurs in DLS from that occurring in DMS in a manner unachievable with canonical statistical analysis. Furthermore, our analysis determines that dopamine modulatory signals including the number of unique dopamine release sites and peak dopamine released per stimulation event are most predictive of neuroanatomy. This is in light of integrated neuromodulator amount being the conventional metric used to monitor neuromodulation in animal studies. Lastly, our study finds that machine learning discrimination of different stimulation strengths or neuroanatomical regions is only possible in adult animals, suggesting a high degree of variability in dopamine modulatory kinetics during animal development. Our study highlights that machine learning could become a broadly utilized tool to differentiate between neuroanatomical regions or between neurotypical and disease states, with features not detectable by conventional statistical analysis.

PMID:37267623 | DOI:10.1021/acschemneuro.3c00001

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Nevin Manimala Statistics

Oncological outcomes of visibly complete transurethral resection prior to neoadjuvant chemotherapy for bladder cancer

Int Braz J Urol. 2023 Jul-Aug;49(4):479-489. doi: 10.1590/S1677-5538.IBJU.2023.0123.

ABSTRACT

PURPOSE: To evaluate the potential oncologic benefit of a visibly complete transurethral resection of a bladder tumor (TURBT) prior to neoadjuvant chemotherapy (NAC) and radical cystectomy (RC).

MATERIALS AND METHODS: We identified patients who received NAC and RC between 2011-2021. Records were reviewed to assess TURBT completeness. The primary outcome was pathologic downstaging (<ypT2N0), with complete pathologic response (ypT0N0) and survival as secondary endpoints. Logistic regression and Cox proportional hazards models were utilized.

RESULTS: We identified 153 patients, including 116 (76%) with a complete TURBT. Sixty-four (42%) achieved <ypT2N0 and 43 (28%) achieved ypT0N0. When comparing those with and without a complete TURBT, there was no significant difference in the proportion with <ypT2N0 (43% vs 38%, P=0.57) or ypT0N0 (28% vs 27%, P=0.87). After median follow-up of 3.6 years (IQR 1.5-5.1), 86 patients died, 37 died from bladder cancer, and 61 had recurrence. We did not observe a statistically significant association of complete TURBT with cancer-specific or recurrence-free survival (p≥0.20), although the hazard of death from any cause was significantly higher among those with incomplete TURBT even after adjusting for ECOG and pathologic T stage, HR 1.77 (95% CI 1.04-3.00, P=.034).

CONCLUSIONS: A visibly complete TURBT was not associated with pathologic downstaging, cancer-specific or recurrence-free survival following NAC and RC. These data do not support the need for repeat TURBT to achieve a visibly complete resection if NAC and RC are planned.

PMID:37267613 | DOI:10.1590/S1677-5538.IBJU.2023.0123

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Nevin Manimala Statistics

Effects of different combinations of radical nephroureterectomy and bladder cuff excision procedures for upper tract urothelial carcinoma on bladder recurrence

Int Braz J Urol. 2023 Jul-Aug;49(4):469-478. doi: 10.1590/S1677-5538.IBJU.2023.0031.

ABSTRACT

PURPOSE: To compare the effects of different combinations of radical nephroureterectomy (RNU) and bladder cuff excision (BCE) surgical procedures on intravesical recurrence (IVR) in patients with upper tract urothelial carcinoma (UTUC).

MATERIALS AND METHODS: This retrospective observational study included 452 patients who underwent RNU with BCE for UTUC between January 2010 and December 2020. The patients were classified into three groups based on different combinations of RNU and BCE surgical procedures: open RNU with open BCE (group 1, n=104), minimally invasive (MIS) RNU with open BCE (group 2, n=196), and MIS RNU with intracorporeal BCE (group 3, n=152). Data on demographics, body mass index, history, preoperative renal function, perioperative status, tumor characteristics, histopathology, and recurrence conditions were collected. Multivariate Cox regression analyses were performed to determine the impact of the surgical procedures on IVR. P-values < 0.05 were considered statistically significant.

RESULTS: After a median follow-up of 29.5 months, the IVR rate was 29.6% and the IVR-free survival rate was the lowest in group 2 (group 1 vs. group 2 vs. group 3: 69.0% vs. 55.1% vs. 67.5%; log-rank P=0.048). The overall survival rate was comparable among the three groups. Multivariate analysis revealed that group 2 had a significantly higher risk of IVR than group 1 (hazard ratio=1.949, 95% confidence interval=1.082-3.511, P=0.026), while groups 1 and 3 had similar risks.

CONCLUSIONS: For patients with UTUC, MIS RNU with open BCE is associated with a higher risk of IVR than open RNU with open BCE and MIS RNU with intracorporeal BCE.

PMID:37267612 | DOI:10.1590/S1677-5538.IBJU.2023.0031

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Nevin Manimala Statistics

Associations of Smoking, Cytomegalovirus Serostatus, and Natural Killer Cell Phenotypes in Smokers With and At Risk for COPD

Chronic Obstr Pulm Dis. 2023 Jun 2. doi: 10.15326/jcopdf.2022.0382. Online ahead of print.

ABSTRACT

INTRODUCTION: Chronic obstructive disease (COPD) risk factors, smoking and chronic infection (Cytomegalovirus (CMV)) may mold NK cell populations. What is not known is the magnitude of effect of CMV seropositivity imparts on populations in smokers with and at-risk for COPD. We investigate the independent influence of CMV seropositivity on NK cell populations and differential effects when stratifying by COPD and degree of smoking history.

METHODS: Descriptive statistics determine relationship between cytotoxic NK cell populations and demographic and clinical variables. Multivariable linear regression and predictive modeling was performed to determine associations between positive CMV serology and proportions of CD57+ and NKG2C+ NK cells. We dichotomized our analysis by those with a heavy smoking history, COPD, and describing the effect size of CMV seropositivity on NK cell populations.

RESULTS: When controlled for age, race, sex, pack-years smoked, body-mass index, and lung function, CMV+ serostatus was independently associated with a higher proportion of CD57+, NKG2C+, and NKG2C+CD57+ NK cells. CMV+ serostatus was the sole predictor of larger NKG2C+ and CD57+NKG2C+ populations. Associations are more pronounced in those with COPD and heavy smokers.

CONCLUSIONS: Among Veterans who are current and former smokers, CMV+ serostatus was independently associated with larger CD57+ and NKG2C+ populations, with a larger effect in heavy smokers and those with COPD, and was the sole predictor for increased expression of NKG2C+ and CD57+NKG2C+ populations. These findings may be broadened to include the assessment of longitudinal NK cell population change, accrued inflammatory potential, and further identification of pro-inflammatory NK cell population clusters.

PMID:37267601 | DOI:10.15326/jcopdf.2022.0382