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Statistical analysis

Q-M Wu, Y-N Guo, Y-Q Xu
OBJECTIVE: This aim of this study is to investigate the diagnostic performance of endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) in pancreatic lesions. PATIENTS AND METHODS: Patients with pancreatic lesions after CT (or MRI) and EUS-FNA examination were retrospectively enrolled. Cytopathological diagnosis of pancreas tissue were obtained by surgery or EUS-FNA. Clinical follow-up results were used as golden standard for diagnosis of pancreatic lesions...
March 2018: European Review for Medical and Pharmacological Sciences
Ana Laura Flores-García, Carmen Alicia Sánchez-Ramírez, Óscar Alberto Newton-Sánchez, Fabián Rojas-Larios
INTRODUCTION: Patients on dialysis have important changes in body composition. OBJECTIVES: To determine the correlation between skinfold thickness (SKF) and bioimpedance analysis (BIA) for estimating fat mass (FM) and lean body mass (LBM) in patients undergoing hemodialysis (HD) and peritoneal dialysis (PD). METHODS: Cross-sectional study. We included 50 patients under dialysis treatment. To measure SKF, we used the Lange® skinfold caliper (Beta Technology, California, USA) and we carried out the impedance analysis with the Bodystat Quadscan 4000® (Quadscan, Isle of Man, UK)...
January 10, 2018: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
Caroline Pinho R Andrade, Mileda L T Portugal, Ellén De Sousa Paz, Paula A Freitas, Ana Filomena C S Daltro, Kaluce G S Almondes, Carla Soraya C Maia, Ariclecio Cunha de Oliveira
OBJECTIVE: The aim of this study was to analyze the influence of liver transplantation in food intake and nutritional status of severe cirrhotic patients. METHODS: The sample consisted of 23 patients who underwent liver transplantation. Three 24-hour dietary recall were applied and anthropometric measurements were collected before and three months after transplantation. The consumption of macronutrients and fat soluble vitamins were also evaluated. The anthropometric data evaluated were body mass index, abdominal circumference, percentage of adequacy of arm circumference, triceps skinfold thickness and arm muscle circumference...
January 16, 2018: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
Soundhararajan Gopi, Suvadip Paul, Sayan Ranu, Athi N Naganathan
The inherent conflict between noncovalent interactions and the large conformational entropy of the polypeptide chain forces folding reactions and their mechanisms to deviate significantly from chemical reactions. Accordingly, measures of structure in the transition state ensemble (TSE) are strongly influenced by the underlying distributions of microscopic folding pathways that are challenging to discern experimentally. Here, we present a detailed analysis of 150,000 folding transition paths of five proteins at three different thermodynamic conditions from an experimentally consistent statistical mechanical model...
March 23, 2018: Journal of Physical Chemistry Letters
Rui Zhang, Ling Chen, Ya Deng Cui, Ge Li
In China, migrants with acquired immunodeficiency syndrome (AIDS) have become a serious problem in the field of AIDS prevention. This study aimed to evaluate the efficacy of interventions for human immunodeficiency virus (HIV) infection prevention for migrants in China and to identify factors associated with intervention efficacy. A computerized literature search of the Chinese National Knowledge Infrastructure, Wan Fang, and PubMed databases was conducted to collect related articles published in China. Only self-control intervention studies or studies containing sections regarding self-control interventions wherein the method of intervention was health education were included...
December 2018: SAHARA J: Journal of Social Aspects of HIV/AIDS Research Alliance
Zeyad H Al-Sowygh, Meshari Kh Aldamkh, Abdulelah M Binmahfooz, Khulud Abdulrahman Al-Aali, Zohaib Akram, Osama A Qutub, Fawad Javed, Tariq Abduljabbar
OBJECTIVES: It is hypothesized that levels of matrix metalloproteinase (MMP)-8 and MMP-9 are significantly higher in the peri-implant sulcular fluid (PISF) of waterpipe-smokers (WS) compared with never-smokers with peri-implantitis. The aim of the present convenience sample case-control study was to compare the levels of MMP-8 and MMP-9 in the PISF of WS and never-smokers with peri-implantitis. MATERIAL AND METHODS: Individuals smoking waterpipe (Group 1) and never-smokers (Group 2) were included...
March 22, 2018: Inhalation Toxicology
Yao-Hui Huang, Yao-Yu Lin, Shih-Kai Lee, Ming-Feng Lee, Ching-Lan Esther Lin
BACKGROUND: The ideology of recovery addresses the autonomy of patients with mental illness and their ability to reconstruct a normal life. Empirical knowledge of this process of recovery and related factors remains unclear. PURPOSE: To assess the process of recovery and related factors in patients with mental illness. METHODS: This cross-sectional, correlational study was conducted on a convenience sample in a psychiatric hospital. Two-hundred and fifty patients with mental illness were recruited and were assessed using 3 instruments: Questionnaire about the Process of Recovery (QPR), Perceived Psychiatric Stigma Scale (PPSS), and Personal and Social Performance Scale (PSP)...
April 2018: Hu Li za Zhi the Journal of Nursing
Luís A B Tonaco, Flavia L Gomes, Gustavo Velasquez-Melendez, Miriam T P Lopes, Carlos E Salas
INTRODUCTION: The aim of the study was to investigate the role of the proteolytic fraction from Vasconcellea cundinamarcensis, designated as P1G10, on the healing of chronic foot ulcers in neuropathic patients with diabetes 2. METHODS: Fifty patients were enrolled in a prospective, randomized, double-blind trial, to verify the efficacy and safety of a topical dressing formulated with 0.1% P1G10, intended for wound healing, versus a hydrogel (control) protocol. Upon completion of the intervention, the outcome evaluated the number of patients attaining full epithelization (100%), or at least 80% healing...
March 21, 2018: Advances in Therapy
Ratneev Kaur, Tajinder Kaur, Anupam Kaur
PURPOSE: Polycystic ovary syndrome (PCOS) is a complex multifactorial endocrine disorder affecting approximately 5-10% of women of reproductive age. Affected women have menstrual disturbances due to anovulation, infertility, and hyperandrogenism. Ovarian androgen overproduction is the key physiopathologic feature of PCOS. A number of genes encoding major enzymes of the androgen metabolic pathways, such as HSD17B6, CYP19A1, CYP11A1, CYP17A1, and INSR, have been examined. Very few studies have been done in North India...
March 22, 2018: Journal of Assisted Reproduction and Genetics
G Li, Q Luo, Z Lang, Y Li, A Wang, K Wang, Y Niu
OBJECTIVE: To evaluate the pathological features and define the optimal surgical margins (SM) of nephron-sparing surgery (NSS) for kidney neoplasms 4-7 cm (stage pT1b) on preoperative imaging. MATERIALS AND METHODS: The retrospective study included 748 patients who were diagnosed stage pT1b renal tumors and underwent either radical nephrectomy (RN, n = 475) or NSS (n = 273) from January 2004 to March 2017. The tumor size, pathological subtype, Fuhrman grade, status of peritumoral pseudocapsule (PC) and tumor multifocality were recorded...
March 21, 2018: Clinical & Translational Oncology
Sonam Verma, Alka Srivastava
Environmental pollution is one of the major problems of these days. One of the reasons of environmental pollution is the indiscriminate use of agrochemicals in agriculture. Fungicides are being extensively used in agriculture for enhancing crop yield and growth by controlling fungal growth. Fungicide carbendazim is widely applied to soil and seeds of vegetable/cereal crops in India and is effective against a very broad spectrum of fungi. The present study was designed to monitor the cyto-genotoxic effects of carbendazim directly in treated soils by cytogenetical analysis using Allium cepa root tip bioassay...
March 21, 2018: Environmental Monitoring and Assessment
Azadeh Ahmadi, Zahra Fatemi, Sara Nazari
Using the multivariate statistical methods, this study interprets a set of data containing 23 water quality parameters from 10 quality monitoring stations in Karkheh River located in southwest of Iran over 5 years. According to cluster analysis, the stations are classified into three classes of quality, and the most important factors on the whole set of parameters and each class are determined by the help of factor analysis. The results indicate the effects of natural factors, soil weathering and erosion, urban and human wastewater, agricultural and industrial wastewater on water quality at different levels and any location...
March 22, 2018: Environmental Monitoring and Assessment
Yubo Lang, Fei Guo, Qingshan Niu
StatsX (Statistics for X-STR) v2.0 is developed to facilitate the workflow for analysis of population data on X-chromosomal short tandem repeat (X-STR) marker. The interactive graphical and installable software can estimate allele/haplotype frequencies from female, male, and pooled samples and calculate forensic parameters by importing a single file. In addition, it is able to filter out the invalid raw data and export a series of pre-formatted Arlequin input files that are directly used for testing the significance of the Hardy-Weinberg equilibrium (HWE), linkage disequilibrium (LD), and gender differentiation...
March 21, 2018: International Journal of Legal Medicine
Lei Shen, Jian Liu, Jin-Kang Li, Meng Xu, Lang Yuan, Guo-Qin Zhang, Jian-Yi Wang, Yu-Juan Huang
The purpose of this study was to test the hypothesis that the incidence of crochetage on the R wave in inferior limb leads can be used for the diagnosis of pediatric secundum atrial septal defect (ASD). Two hundred fifty-six children with secundum ASD (case cohort) and 256 age- and gender-matched children without heart disease (control cohort) were included in the study. Statistical analyses were performed to test the relationship between the ASD and the crochetage on the R wave with a single lead and three leads, respectively...
March 22, 2018: Pediatric Cardiology
Ixora Kamisan Atan, Sylvia Lin, Hans Peter Dietz, Peter Herbison, Peter Donald Wilson
INTRODUCTION AND HYPOTHESIS: Levator ani muscle (LAM) and anal sphincter tears are common after vaginal birth and are associated with female pelvic organ prolapse and anal incontinence. The impact of subsequent births on LAM and external anal sphincter (EAS) integrity is less well defined. The objective of this study was to determine the prevalence of LAM and EAS trauma in primiparous (VP1) and multiparous (VP2+) women who had delivered vaginally to assess if there were differences between the two groups...
March 21, 2018: International Urogynecology Journal
Yupeng Liu, Jianguo Wu, Deyong Yu, Ruifang Hao
China's rapid economic growth during the past three decades has resulted in a number of environmental problems, including the deterioration of air quality. It is necessary to better understand how the spatial pattern of air pollutants varies with time scales and what drive these changes. To address these questions, this study focused on one of the most heavily air-polluted areas in North China. We first quantified the spatial pattern of air pollution, and then systematically examined the relationships of air pollution to several socioeconomic and climatic factors using the constraint line method, correlation analysis, and stepwise regression on decadal, annual, and seasonal scales...
March 21, 2018: Environmental Management
Byung-Ho Yoon, Jun-Ku Lee, Dae-Sung Choi, Soo-Hong Han
Background: We determined the prevalence of sarcopenia according to fracture site and evaluated the associated risk factors in female patients with osteoporotic fractures. Methods: A total of 108 patients aged 50 years or older with an osteoporotic fracture (hip, spine, or wrist) were enrolled in this retrospective observational study. A diagnosis of sarcopenia was confirmed using whole-body densitometry for skeletal muscle mass measurement. Logistic regression analysis was used to analyze the risk factors for sarcopenia...
February 2018: Journal of Bone Metabolism
Indranil Saha, Kamirul Islam, Bobby Paul, Tapas Kumar Som
Background: Tobacco kills half of its users, with smoking and smokeless tobacco killing nearly 6 million people worldwide - one death every 6 s in each year. Use of tobacco over time causes a physical and psychological addiction due to the presence of nicotine. To find out the level of nicotine dependence among adult (18 years and above) tobacco users and the factors responsible for it. Materials and Methods: A cross-sectional community-based study was conducted among 128 current tobacco users in an urban slum of Burdwan District, West Bengal, India...
October 2017: Journal of Family Medicine and Primary Care
Doniparthi Venkata Pavan Kumar, Jesinth Mohan, P S Rakesh, Jasmine Prasad, Lenikumar Joseph
Introduction: Neonatal sepsis is a leading cause of neonatal mortality and morbidity in the world. The objective of the current study was to detect the common causative microorganisms of neonatal sepsis and their antimicrobial resistance patterns in a rural secondary hospital in Tamil Nadu, India. Materials and Methods: Neonates (0-28 days) admitted to this newborn care unit from October 2013 to September 2015, with a diagnosis of probable sepsis were studied. All the enrolled babies had blood cultures taken and were followed up till final outcome, which was discharge or death, irrespective of culture result...
October 2017: Journal of Family Medicine and Primary Care
Smit Singla, Emmanuel Gabriel, Raed Alnaji, William Du, Kristopher Attwood, Hector Nava, Steven N Hochwald, Moshim Kukar
Background: The relationship of complete pathologic response (cPR) with the timing of esophagectomy after neoadjuvant chemoradiation (nCRT) is not well defined. We sought to determine if a delay in esophagectomy after nCRT would result in increased likelihood of cPR and improved survival. Methods: This is a retrospective analysis of a prospectively maintained database of all patients treated with nCRT and esophagectomy between 2004 and 2014. Patients were divided into two groups based on timing of esophagectomy (≤50 vs ...
February 2018: Journal of Gastrointestinal Oncology
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