scholarly journals Analysis of the Diagnostic Effect of EUS-RTE on Giant Cystic Tumours of the Oesophagus Based on Cluster Analysis

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Huizhen Yang ◽  
Zhenghang Zhang ◽  
Yingbi He ◽  
Bin Tian ◽  
Xiaozhen Zhang ◽  
...  
Keyword(s):  
Cluster Analysis ◽  
Oesophageal Cancer ◽  
Interval Data ◽  
Treatment Modalities ◽  
Chi Square ◽  
Cluster Radius ◽  
Depth Analysis ◽  
Chi Square Test ◽  
Data Objects ◽  
Mesenchymal Tumours

This paper presents an in-depth analysis and study of the diagnostic effectiveness of EUS-RTE in giant cystic tumours of the oesophagus utilizing cluster analysis. A new form of interval data expression was designed based on the cluster analysis algorithm, as well as a new way of updating the cluster radius and cluster centre. Feature triads are defined, eliminating the need to access all historical data at the time of update. It also prevents the case of overfusion of clusters and outputting only one cluster. If there exist a very low number of clusters, the newly merged clusters are reclustered according to the density clustering method for the internal data objects based on the cluster segmentation so that the data objects in the same cluster have a high similarity as possible. All accumulated electronic files of oesophageal cancer cases were collected and comprehensively organized, and all clinical data of 129 eligible cases with a total of 356 consultations were screened in strict accordance with inclusion and exclusion criteria. A database of oesophageal cancer cases was established using Visual FoxPro software, and frequency distribution, cluster analysis, association rule, and chi-square test were used to focus on mining the association between symptoms, disease mechanisms, prescriptions, and medications. The results were analysed and summarized. Overall, the therapeutic efficacy and safety of the three groups of treatment modalities for gastric mesenchymal tumours were positive, and the preoperative endoscopic treatment modalities should be selected based on the EUS-RTE characteristics of the tumour, the site, and the operator’s skill level in a comprehensive manner.

scholarly journals Assessment of Poverty by Municipalities in the Context of Population Ageing—The Case of Małopolskie Voivodeship

2021 ◽  
Vol 13 (5) ◽  
pp. 2563
Author(s):  
Małgorzata Ćwiek ◽  
Katarzyna Maj-Waśniowska ◽  
Katarzyna Stabryła-Chudzio
Keyword(s):  
The Elderly ◽  
Research Problem ◽  
Point Of View ◽  
Computer Assisted ◽  
Chi Square ◽  
Social Challenge ◽  
Depth Analysis ◽  
Qualitative Variables ◽  
Chi Square Test ◽  
Research Gap

This article undertakes the research problem of the assessment of the significance of poverty as a social challenge for local self-government units, and the differences in the assessment of the incidence of this phenomenon depending on the type of municipality. The authors also analyse the relationships between the ageing of the population and the assessment of the extent of poverty by municipalities. It must be pointed out that the undertaken problem has not been a subject of in-depth analysis thus far. Hence, this article fills the identified research gap in this field. The empirical part is based on the results of our own research, conducted using the Computer-Assisted Web Interview (CAWI) method on a sample of 144 municipalities of the Małopolskie Voivodship (Poland). In order to verify whether there is a relationship between the researched qualitative variables, the chi-square test of independence was used. In order to determine the relationships occurring between the categories of variables characterising the scale of the incidence of poverty and the remaining variables, a correspondence analysis was conducted. The research enabled us to find the issue of poverty to be one of the most important social problems from the point of view of municipalities. It is also worth noting that the degree of ageing in the population has an impact on the assessment of poverty among the elderly.

scholarly journals Digital Marketing Communication and Car Buying: A Study of Potential Deterrents

2018 ◽  
Vol 13 (02) ◽  
Author(s):  
Rekha Dahiya ◽  
Aparna Mishra
Keyword(s):  
Cluster Analysis ◽  
Digital Marketing ◽  
Marketing Communication ◽  
Age Group ◽  
Chi Square ◽  
Occupational Category ◽  
Chi Square Test ◽  
And Cluster Analysis ◽  
Digital Channels ◽  
Lack Of Knowledge

The present study aims to identify the potential deterrents of digital marketing communication while buying a car. Data was collected from 801 respondents from Delhi using area wise proportionate sampling. 75% of the respondents used at least one digital channel of communication while buying a car. There were 25% of the respondents who didn’t use digital channels of communication while buying a car and relied exclusively upon traditional channels of communication. The study analyzed the respondents believing only in traditional channels of communication while buying a car to know the deterrents impeding the usage of digital channels of communication. The study also aimed to identify the distinct customers segments using traditional channels of communication while buying a car. Data was analyzed with the help of chi-square test and cluster analysis. ‘Technicality’ of the medium followed by ‘lack of knowledge and time’ were identified as the major deterrents of digital marketing communication. Two customer segments were identified in the study that made use of only traditional channels of communication while buying a car. First segment comprised of respondents ‘above 40 years of age’ belonging to ‘business’ category. Second segment was composed of respondents in ‘service’ occupational category belonging to ‘26 to 30 years age’ group.

Audit of Genito-Anal Injuries in male and femal sexual abuse cases - A retrospective study.

2020 ◽  
Vol 1 (3) ◽  
pp. e274
Author(s):  
Saima Gill ◽  
Sarah Mohsin ◽  
Sarah Arif ◽  
Nimra Mumtaz
Keyword(s):  
Sexual Assault ◽  
Data Entry ◽  
Interval Data ◽  
Research Committee ◽  
Chi Square ◽  
Exact Test ◽  
Evidence Collection ◽  
Chi Square Test ◽  
Human Participants ◽  
Assault Victims

Background: Sexual assault is a global issue wherein timely examination of sexual assault victims by medico-legal officers and an understanding of the characteristics and factors influencing their injuries have a crucial impact on medico-legal evidence collection and its use in the court. Genital injury findings improve the level of justice for victims, but the lack of injury does not negate the possibility of sexual violence incurred on the victim. The following study describes in great detail the different factors associated with injury characteristics and the medico-legal importance of all these factors. Methodology: It was a retrospective descriptive study conducted at the Forensic Medicine Department of King Edward Medical University, Lahore, Pakistan. All the cases included that fulfill the predefined inclusion criteria were included. A record chart was designed, and six years’ data was recorded in it from the medical records of the medico-legal clinic. It was entered and edited manually. Methods used to prevent data entry errors included double entry and validation following data entry Difference of proportions between variables, where appropriate, has been calculated by Pearson Chi-Square test and Fischer Exact test at 95% confidence interval. Data were analyzed using SPSS v23. All procedures performed in this study involving human participants were following the ethical standards of the institutional and/or national research committee and the Helsinki declaration. Results: Genito anal injury was present in 28.2% cases and was absent in 71.8% cases. Most of the victims were aged 11 to 15 years. The most common injury in the victims was a tear. In females, the most common injury site was the vagina, while the perianal area was the most injured site in males. There was a significant relation (p<0.05) between type and site of injury, gender, site of injury, and prior sexual intercourse experience and prevalence rate of injury. Conclusion: This study concludes that the presence of injuries in the Genito anal area is suggestive of sexual assault and provides useful court evidence.

A statistical view to study the aphorisms in Nahj al-Balaghah

2019 ◽  
Vol 35 (4) ◽  
pp. 881-885
Author(s):  
Yu Tian ◽  
Kim-Hung Pho
Keyword(s):  
Cluster Analysis ◽  
Data Analysis ◽  
Chi Square ◽  
Chi Square Test ◽  
Book Covers

Abstract Besides the Holly Quran, Nahj al-Balagha is the main source of literature in Arabian nations, especially for Shia as one of the main branches of the Muslims. Along with literary brilliance, the text of this book covers the broad topics. This research deals with the application of the statistical text and data analysis to extract knowledge from the aphorisms in Nahj al-Balaghah. First, we classify these aphorisms in seven topics. Then, the count of the aphorisms in each category is computed. Finally, the counts of the aphorisms of the categories are compared using the chi-square test and the cluster analysis.

Statistical approaches in literature: Comparing and clustering the alternatives of love in Divan of Hafiz

2019 ◽  
Vol 35 (4) ◽  
pp. 886-892
Author(s):  
Bui Anh Tuan ◽  
Galina Nikolaevna Pudikova ◽  
Mohammad Reza Mahmoudi ◽  
Kim-Hung Pho
Keyword(s):  
Cluster Analysis ◽  
Chi Square ◽  
Chi Square Test ◽  
Statistical Approaches ◽  
And Cluster Analysis

Abstract Hafiz is one of the finest lyric poets of Iran. He learnt a lot from scholars and writers. This research deals with the alternatives of the word ‘Love’ in Divan of Hafiz. First, these words are determined and their counts are computed. Then, we classify them into sixteen categories. Finally, the counts of the words and the categories are compared using chi-square test and cluster analysis. The clustering results showed that the word ‘Way’ and the category ‘Human’ have the most applications as the alternatives of the word ‘Love’ in Divan of Hafiz.

scholarly journals Lifestyle And Physical Education

2011 ◽  
Vol 27 (1) ◽  
pp. 147-160 ◽  
Author(s):  
Alberto Nuviala ◽  
Manuel Gómez-López ◽  
José Turpin ◽  
Román Nuviala
Keyword(s):  
Cluster Analysis ◽  
Physical Education ◽  
Healthy Lifestyle ◽  
Chi Square ◽  
Rural Environments ◽  
Spare Time ◽  
Chi Square Test ◽  
The Creation ◽  
The One

Lifestyle And Physical EducationIn order to improve the influence of Physical Education within schools on the creation of a healthy lifestyle, it is essential to analyze students' opinions in regard to this subject and its teachers. The aim of this research was to establish lifestyle typologies and to find out if these are correlated with the perception of Physical Education and its teachers. The participants in this research consisted of 745 teenagers belonging to three different rural environments. In order to establish typologies related to the use of spare time, a cluster analysis was carried out. Then, the relation between lifestyle and the evaluation of Physical Education was determined by means of the Chi-square test. The results show the existence of two lifestyle typologies. The group with a healthier lifestyle is the one that rates Physical Education and its teachers more positively.

scholarly journals Randomized controlled trial on the effectiveness of silver diamine fluoride in arresting caries in Lagos, Nigeria

2021 ◽  
Vol 21 ◽  
pp. e226341
Author(s):  
Moses Okechukwu Azouru ◽  
Modupe Olufunmilayo Ashiwaju ◽  
Augustine Edomwonyi ◽  
Afolabi Oyapero ◽  
Bola Obisesan ◽  
...  
Keyword(s):  
Controlled Trial ◽  
Phase Iii ◽  
Treatment Modalities ◽  
Control Group ◽  
Chi Square ◽  
Silver Diamine Fluoride ◽  
Randomized Controlled ◽  
Significant Difference ◽  
Chi Square Test ◽  
The Mean

Treatment of dental caries in children still remains challenging due to lack of cooperation with conventional treatment modalities. Recently, the use of Silver Diamine Fluoride (SDF) has proved useful in addressing this challenge. Aim: This clinical trial aimed to evaluate the effectiveness of Silver Diamine Fluoride (SDF) in arresting caries in children in Lagos, Nigeria. Methods: This was a phase III balanced randomized controlled school based interventional study on 240 children. The study group was treated with SDF while GIC was used in the control group. Follow up visits in 2 weeks, 1 month, and 3 months were carried out to assess the treatment outcome. Inferential statistics with the use of Pearson Chi-square test and Independent Student t-test were used at 5% level of significance. Results: There was significant relationship between SDF and caries arrest in 2 weeks, 1 month and 3 months’ assessment period (p = 0.001). The control group showed continuous decline (71.7%, 54.3% and 50.9%) in restorative success from 2 weeks to 3 months respectively. The mean ± SD and Confidence Interval (CI) of arrested caries in the SDF group were 113± 1.24 and 113.1 – 113.5 respectively. In the control group the mean ± SD and CI of restorative success were 69.3±11.8 and 67.2 – 71.4. The effect size was 5.24. Conclusion: The result of the study showed that SDF was effective in arresting caries in children without any harm and there was statistically significant difference in the use of 38% SDF in arresting caries in children.

scholarly journals A Survey to Evaluate the Awareness of Various Treatment Modalities to Replace Missing Teeth among Patients Visiting Kasturba Hospital, Manipal: A Prosthodontic Perspective

2015 ◽  
Vol 6 (4) ◽  
pp. 217-221
Author(s):  
SV Siva Teja ◽  
Vishnu Ravi Kumar ◽  
Vinu Thomas George
Keyword(s):  
Treatment Option ◽  
Treatment Options ◽  
Indian Society ◽  
Treatment Modalities ◽  
Missing Teeth ◽  
Chi Square ◽  
Significance Level ◽  
Outreach Programs ◽  
Chi Square Test ◽  
Version 2.0

ABSTRACT Background The disabilities associated with oral health; like missing teeth, are many. The management of these disabilities is of utmost importance to any dental practitioner. Materials and methods This study was conducted at the outpatient department (OPD) of Manipal College of Dental Sciences, Manipal, located in Udupi district of South-West Karnataka, with a population of 11.7 lakh of whom 305 patients (146 females and 159 males) took part in the study to assess their awareness to various treatment options available to replace missing teeth. The subjects filled out a close-ended questionnaire of 11 questions; clinical examination of the oral cavity then followed. They all had at least 1 missing tooth (3rd molars excluded). The data were analyzed using SPSS Version 2.0, with a Chi-square test significance level of p < 0.05. Results Of the 305 patients who participated, 69.2% of males and females wanted to get their teeth replaced. The remaining 15.2% males and 12.6% females who did not want to get their teeth replaced stated that the lack of time prevented them from doing so. A total of 5% of females and a 1.4% of males said that previous traumatic dental experience prevented them from getting treatment. Majority of both men and women were aware of the removable partial prosthesis as a treatment option (71.9% males and 74.9% females). A small portion of the study group, 21.9% males and 25.2% of females were aware of dental implants. The most preferred treatment option, chosen by 53.5% females and 49.3% males was the fixed partial prosthesis (tooth supported). These findings indicate that 56% of women were more inclined to avail treatment for missing teeth, and only 44% of men felt the need to avail treatment. A total of 76.7% males and 76.1% females felt that their masticatory functions were affected. Conclusion The findings indicate that awareness regarding implants is lacking, and that motivation brought about by outreach programs has not yet reached most sections of the Indian society. How to cite this article Teja SVS, Kumar VR, George VT. A Survey to Evaluate the Awareness of Various Treatment Modalities to Replace Missing Teeth among Patients Visiting Kasturba Hospital, Manipal: A Prosthodontic Perspective. World J Dent 2015;6(4):217-221.

Differences in clinical characteristics and treatment in hepatocellular carcinoma between Asians and non-Asians.

2014 ◽  
Vol 32 (3_suppl) ◽  
pp. 289-289
Author(s):  
Kit Man Wong ◽  
Jonghun John Lee ◽  
Amy Wong ◽  
Geoffrey Liu ◽  
Morris Sherman ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Health Care ◽  
Liver Transplant ◽  
Meld Score ◽  
Public Health Care ◽  
Treatment Modalities ◽  
Chi Square ◽  
Curative Intent ◽  
Chi Square Test ◽  
Multifocal Disease

289 Background: Studies have demonstrated clinical differences in hepatocellular carcinoma (HCC) between Asians (AS) and non-Asians (NAS). In the US, AS are less likely to undergo liver transplant compared to Caucasians. Despite the large immigrant population in Canada, there has been no prior comparison of HCC in AS and NAS in the context of the Canadian universal health care system. We retrospectively evaluated the ethnic differences in HCC at the largest cancer centre in Canada. Methods: We analyzed 268 patients who enrolled in a Genetic Epidemiology Study of HCC (April 2010 to February 2013), where patients were asked to complete a questionnaire and give a blood sample at their first visit. Relevant clinical data were extracted and analyzed by descriptive statistics, t-test or Chi-square test. Results: The study population had a mean age of 61 years and 83% males. There were 45% AS, 49% Caucasians, and 6% other ethnicities. Etiologies of HCC included: Hepatitis B (HBV) 34%, Hepatitis C (HCV) 32%, non-alcoholic steatohepatitis 15%, alcohol 18%. Compared to NAS, HCC patients of Asian ancestry had significantly higher rates of HBV (60% vs. 12%, p<0.001). At diagnosis, 83% of patients were Child-Pugh A (mean MELD score 9.2). Ethnicity had no impact on Child-Pugh class, multifocal disease or macrovascular invasion. However, MELD scores were lower in AS (p=0.02). Overall, 71% of cases were initially treated with curative intent. Patients underwent various treatment modalities: liver transplant 13%, resection 31%, radiofrequency ablation 39%, transarterial chemoembolization (TACE) 21%, radiation 17%, systemic therapy 27%. AS had higher resection rates (41% vs. 22%, p<0.001), while no differences were observed for other treatments. Duration of response was 11.7 months for TACE (AS 14.2, NAS 10.5), 7.5 months for sorafenib (AS 6.8, NAS 8.1). Rate of intolerance to sorafenib was 24% (AS 27%, NAS 22%, p=0.63). This analysis was limited by inherent bias in the selection of study patients. Conclusions: AS with HCC tend to have HBV and lower MELD scores, and to undergo resection in a public health care setting with no differences in the uptake of other therapies. An analysis of survival based on ethnicity will be reported.

Sign in / Sign up

Export Citation Format

Share Document