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Propensity analysis

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https://www.readbyqxmd.com/read/28820845/concomitant-panniculectomy-affects-wound-morbidity-but-not-hernia-recurrence-rates-in-abdominal-wall-reconstruction-a-propensity-score-analysis
#1
Salvatore Giordano, Patrick B Garvey, Donald P Baumann, Jun Liu, Charles E Butler
BACKGROUND: Panniculectomy (PAN) is often performed during abdominal wall reconstruction (AWR) to decrease wound healing complications and hernia recurrence rates. However, studies of AWR with concurrent panniculectomy (AWR+PAN) have reported contradictory results. We hypothesized that patients undergoing AWR+PAN experience more wound healing complications but similar rates of hernia recurrence compared to AWR alone. METHODS: In this retrospective study of 548 consecutive patients, 305 (52...
August 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28820243/interpreting-reverse-transcriptase-termination-and-mutation-events-for-greater-insight-into-the-chemical-probing-of-rna
#2
Alec N Sexton, Peter Y Wang, Michael Rutenberg-Schoenberg, Matthew D Simon
Chemical probing has the power to provide insight into RNA conformation in vivo and in vitro, but interpreting the results depends on methods to detect the chemically modified nucleotides. Traditionally, the presence of modified bases was inferred from their ability to halt reverse transcriptase during primer extension and the locations of termination sites observed by electrophoresis or sequencing. More recently, modification-induced mutations have been used as a readout for chemical probing data. Given the variable propensity for mismatch incorporation and read-through with different reverse transcriptases, we examined how termination and mutation events compare to each other in the same chemical probing experiments...
August 18, 2017: Biochemistry
https://www.readbyqxmd.com/read/28819775/sublobar-resection-versus-lobectomy-in-patients-aged-%C3%A2-35%C3%A2-years-with-stage-ia-non-small-cell-lung-cancer-a-seer-database-analysis
#3
Chang Gu, Rui Wang, Xufeng Pan, Qingyuan Huang, Yangyang Zhang, Jun Yang, Jianxin Shi
PURPOSE: Sublobar resection has been increasingly adopted in elderly patients with stage IA non-small cell lung cancer (NSCLC), but the equivalency of sublobar resection versus lobectomy among young patients with stage IA NSCLC is unknown. METHODS: Using the Surveillance, Epidemiology, and End Results (SEER) registry, we identified patients aged ≤35 years who were diagnosed between 2004 and 2013 with pathological stage IA NSCLC and treated with sublobar resection or lobectomy...
August 17, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28819425/selective-gastric-cancer-patients-with-peritoneal-seeding-benefit-from-gastrectomy-after-palliative-chemotherapy-a-propensity-score-matching-analysis
#4
Shu-Qiang Yuan, Run-Cong Nie, Shi Chen, Xiao-Jiang Chen, Yong-Ming Chen, Li-Pu Xu, Li-Fang Yang, Zhi-Wei Zhou, Jun-Sheng Peng, Ying-Bo Chen
Background: The present study aimed to explore whether gastric cancer patients with peritoneal seeding after receiving palliative chemotherapy could benefit from gastrectomy and to identify patients with peritoneal seeding who should be selected to receive gastrectomy. Methods: A total of 201 gastric cancer patients were diagnosed with peritoneal seeding and received palliative chemotherapy. Propensity score matching (PSM) was performed to balance the selection bias. Results: After PSM, compared with non-gastrectomy group, gastrectomy group had a longer median overall survival (OS) (23...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28817654/investigating-spousal-concordance-of-diabetes-through-statistical-analysis-and-data-mining
#5
Jong-Yi Wang, Chiu-Shong Liu, Chi-Hsuan Lung, Ya-Tun Yang, Ming-Hung Lin
OBJECTIVE: Spousal clustering of diabetes merits attention. Whether old-age vulnerability or a shared family environment determines the concordance of diabetes is also uncertain. This study investigated the spousal concordance of diabetes and compared the risk of diabetes concordance between couples and noncouples by using nationally representative data. METHODS: A total of 22,572 individuals identified from the 2002-2013 National Health Insurance Research Database of Taiwan constituted 5,643 couples and 5,643 noncouples through 1:1 dual propensity score matching (PSM)...
2017: PloS One
https://www.readbyqxmd.com/read/28817374/long-term-survival-outcomes-of-cancer-directed-surgery-for-malignant-pleural-mesothelioma-propensity-score-matching-analysis
#6
David B Nelson, David C Rice, Jiangong Niu, Scott Atay, Ara A Vaporciyan, Mara Antonoff, Wayne L Hofstetter, Garrett L Walsh, Stephen G Swisher, Jack A Roth, Anne Tsao, Daniel Gomez, Sharon H Giordano, Reza Mehran, Boris Sepesi
Purpose Small observational studies have shown a survival advantage to undergoing cancer-directed surgery for malignant pleural mesothelioma (MPM); however, it is unclear if these results are generalizable. Our purpose was to evaluate survival after treatment of MPM with cancer-directed surgery and to explore the effect surgery interaction with chemotherapy or radiation therapy on survival by using the National Cancer Database. Patients and Methods Patients with microscopically proven MPM were identified within the National Cancer Database (2004 to 2014)...
August 17, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28817183/combined-high-intensity-local-treatment-and-systemic-therapy-in-metastatic-head-and-neck-squamous-cell-carcinoma-an-analysis-of-the-national-cancer-data-base
#7
Zachary S Zumsteg, Michael Luu, Emi J Yoshida, Sungjin Kim, Mourad Tighiouart, John M David, Stephen L Shiao, Alain C Mita, Kevin S Scher, Eric J Sherman, Nancy Y Lee, Allen S Ho
BACKGROUND: There is increasing evidence that primary tumor ablation can improve survival for some cancer patients with distant metastases. This may be particularly applicable to head and neck squamous cell carcinoma (HNSCC) because of its tropism for locoregional progression. METHODS: This study included patients with metastatic HNSCC undergoing systemic therapy identified in the National Cancer Data Base. High-intensity local treatment was defined as radiation doses ≥ 60 Gy or oncologic resection of the primary tumor...
August 17, 2017: Cancer
https://www.readbyqxmd.com/read/28816937/effect-of-perioperative-oral-care-on-prevention-of-postoperative-pneumonia-associated-with-esophageal-cancer-surgery-a-multicenter-case-control-study-with-propensity-score-matching-analysis
#8
Sakiko Soutome, Souichi Yanamoto, Madoka Funahara, Takumi Hasegawa, Takahide Komori, Shin-Ichi Yamada, Hiroshi Kurita, Chika Yamauchi, Yasuyuki Shibuya, Yuka Kojima, Hirokazu Nakahara, Takahiko Oho, Masahiro Umeda
The aim of this study was to investigate the effectiveness of oral care in prevention of postoperative pneumonia associated with esophageal cancer surgery.Postoperative pneumonia is a severe adverse event associated with esophageal cancer surgery. It is thought to be caused by aspiration of oropharyngeal fluid containing pathogens. However, the relationship between oral health status and postoperative pneumonia has not been well investigated.This study included 539 patients with esophageal cancer undergoing surgery at 1 of 7 university hospitals...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816714/radiotherapy-as-metastasis-directed-therapy-for-oligometastatic-prostate-cancer
#9
Elise De Bleser, Phuoc T Tran, Piet Ost
PURPOSE OF REVIEW: To summarize the available literature regarding radiotherapy as a metastasis-directed therapy (MDT) in the treatment of oligometastatic prostate cancer (PCa). RECENT FINDINGS: Three different clinical scenarios of oligometastatic PCa exist in which MDT can be applied: de novo oligometastatic PCa, oligorecurrent PCa, and oligoprogressive PCa. A cut off of three to five metastatic lesions is most often used in these settings. Data from retrospective studies, treating over 1000 patients in total, have been reported...
August 14, 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/28816532/comparing-clinical-outcomes-and-costs-for-different-treatment-intensification-approaches-in-patients-with-type-2-diabetes-uncontrolled-on-basal-insulin-adding-glucagon-like-peptide-1-receptor-agonists-vs-adding-rapid-acting-insulin-or-increasing-basal-insulin
#10
Philip Levin, Tao Fan, Xue Song, Damion Nero, Brian Davis, Bong-Chul Chu
Objective-Not all patients with type 2 diabetes achieve the recommended glycated hemoglobin A1c (A1C) levels after adequate titration of basal insulin (BI). Current intensification approaches include addition of rapid-acting insulin (RAI) or a glucagon-like peptide-1 receptor agonist (GLP-1 RA), but it is not clear which strategy results in better long-term outcomes. Methods-This retrospective analysis of health insurance claims data in the US MarketScan database compared glycemic control and healthcare resource utilization and costs 12 months after adding GLP-1 RA to BI vs adding RAI or increasing BI doses...
August 17, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28816139/total-mesorectal-excision-versus-local-excision-after-favorable-response-to-preoperative-chemoradiotherapy-in-early-clinical-t3-rectal-cancer-a-propensity-score-analysis
#11
Young Seob Shin, Chang Sik Yu, Jin-Hong Park, Jin Cheon Kim, Seok-Byung Lim, In Ja Park, Tae Won Kim, Yong Sang Hong, Kyu-Pyo Kim, Sang Min Yoon, Ji Hyeon Joo, Jong Hoon Kim
PURPOSE: To compare oncological outcomes of total mesorectal excision (TME) and local excision (LE) in patients with "early" clinical T3 rectal cancer who received preoperative chemoradiotherapy (PCRT). METHODS AND MATERIALS: "Early" clinical T3 rectal cancer was radiologically defined as tumors with extramural extension of <5 mm without mesorectal fascia involvement and lateral lymph node metastasis. Patients with "early" clinical T3 rectal cancer who received PCRT followed by TME or LE between January 2007 and December 2013 were retrospectively analyzed...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28815727/gender-disparities-among-patients-with-peripheral-arterial-disease-treated-via-endovascular-approach-a-propensity-score-matched-analysis
#12
Rajkumar Doshi, Priyank Shah, Perwaiz Meraj
BACKGROUND: Remarkable improvement in the treatment of Peripheral Arterial Disease (PAD) has led to changes in revascularization strategies from traditional open surgery to less invasive endovascular management. However, few studies are available on gender disparities in patients with PAD treated via an endovascular approach. This study was designed to analyze gender related differences with respect to in-hospital outcomes in PAD patients. METHODS: Our data was obtained from National Inpatient Sample (NIS) 2012 through 2014...
August 16, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28815319/anemia-as-a-risk-factor-for-all-cause-mortality-obscure-synergic-effect-of-chronic-kidney-disease
#13
Yuji Sato, Shouichi Fujimoto, Tsuneo Konta, Kunitoshi Iseki, Toshiki Moriyama, Kunihiro Yamagata, Kazuhiko Tsuruya, Ichiei Narita, Masahide Kondo, Masato Kasahara, Yugo Shibagaki, Koichi Asahi, Tsuyoshi Watanabe
BACKGROUND: Anemia is common in chronic kidney disease (CKD) and may be associated with mortality in CKD patients. However, few studies have examined this relationship in Asian populations. METHODS: A total of 62,931 Japanese people (age 64.0 ± 8.0 years; men 38.5%) were followed up from 2008 to 2012. Participants were divided into six groups in accordance with their estimated glomerular filtration rate (eGFR) (<45, 45-59, ≥60 mL/min/1.73 m(2)) and by hemoglobin levels (13...
August 16, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28814884/outcomes-of-adding-induction-chemotherapy-to-concurrent-chemoradiotherapy-for-stage-t3n0-1-nasopharyngeal-carcinoma-a-propensity-matched-study
#14
Xiao-Wen Lan, Yao Xiao, Xue-Bin Zou, Xiao-Min Zhang, Pu-Yun OuYang, Fang-Yun Xie
OBJECTIVE: Our objective was to examine whether adding induction chemotherapy to concurrent chemoradiotherapy improved survival in stage III nasopharyngeal carcinoma (NPC) patients, especially in low-risk patients at stage T3N0-1. MATERIALS AND METHODS: We retrospectively analyzed 687 patients with stage T3N0-1 NPC treated with intensity-modulated radiation therapy (IMRT) plus concurrent chemotherapy (CC) with or without induction chemotherapy (IC). Propensity score matching (PSM) method was used to select 237 pairs of patients from two cohorts...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28814812/transurethral-resection-of-the-prostate-turp-vs-greenlight-photoselective-vaporization-of-benign-prostatic-hyperplasia-analysis-of-bph6-outcomes-after-1-year-of-follow-up
#15
S Cimino, S Voce, F Palmieri, V Favilla, T Castelli, S Privitera, R Giardina, G Reale, G I Russo, G Morgia
The surgical treatment of benign prostatic obstruction is changing over the time, thanks the increase evidence about the successful role of laser techniques in this surgery. We aimed to compare prostatic GreenLight photovaporization (PVP) to bipolar transurethral resection of the prostate (TURP) with regard to lower urinary tract symptoms (LUTS) improvement through the evaluation of BPH6. We enrolled 220 consecutive subjects affected by LUTS. We performed a propensity score matching using prostate volume, peak flow and International Prostate Symptoms Score (IPSS)...
August 17, 2017: International Journal of Impotence Research
https://www.readbyqxmd.com/read/28814454/air-pollution-as-a-catalyst-for-supporting-tobacco-control-policies-evidence-from-a-nationwide-study-on-chinese-medical-students
#16
Xiaozhao Yousef Yang, Tingzhong Yang, Fanhao Nie
PURPOSE: Few studies have discussed how the increasing ambient air pollution may affect policy-related attitudes. Medical professionals constitute an important interest group who analyse and solve public issues within a medicalised framework. The current study investigates whether ambient air pollution is associated with a greater likelihood of supporting tobacco control measures among medical students. METHODS: We conducted multistage sampling among the medical students from 42 cities in China...
August 16, 2017: Tobacco Control
https://www.readbyqxmd.com/read/28814273/add-on-neurological-benefits-of-antiviral-therapy-in-hcv-patients-with-chronic-kidney-disease-a-nationwide-cohort-study
#17
Ming-Shyan Lin, Tien-Hsing Chen, Wey-Yil Lin, Chi-Hung Liu, Yung-Yu Hsieh, Wen-Nan Chiu, Chih-Hsiang Chang, Mei-Yen Chen, Chang-Min Chung, Yu-Sheng Lin
BACKGROUND: Hepatitis C virus (HCV)-infected patients with chronic kidney disease (CKD) have rarely been studied because they rarely accept interferon-based therapy (IBT) and have been difficult to follow up. We investigated long-term outcomes of IBT on the population. METHODS: This population-based cohort study used the Taiwan National Health Insurance Research Database as its data source. HCV patients diagnosed with CKD between Jan. 1, 2003, and Dec. 31, 2013, were selected...
August 16, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28812435/transcatheter-aortic-valve-implantation-compared-with-surgical-aortic-valve-replacement-in-patients-with-anaemia
#18
Paola D'Errigo, Fausto Biancari, Stefano Rosato, Corrado Tamburino, Marco Ranucci, Gennaro Santoro, Marco Barbanti, Martina Ventura, Danilo Fusco, Fulvia Seccareccia
OBJECTIVES: We compared the outcome of anaemic patients undergoing transcatheter (TAVI) and surgical aortic valve replacement (SAVR) for severe aortic valve stenosis. METHODS: Anaemic patients (haemoglobin <13.0 g/dL in men and <12.0 g/dL in women) undergoing TAVI and SAVR from the OBSERVANT study were the subjects of this analysis. RESULTS: Preoperative anaemia was an independent predictor of 3-year mortality after either TAVI (HR 1...
August 16, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28812160/robotic-versus-open-pancreatoduodenectomy-a-propensity-score-matched-analysis-based-on-factors-predictive-of-postoperative-pancreatic-fistula
#19
Niccolò Napoli, Emanuele F Kauffmann, Francesca Menonna, Francesca Costa, Sara Iacopi, Gabriella Amorese, Serena Giorgi, Angelo Baggiani, Ugo Boggi
BACKGROUND: Improvement in morbidity of pancreatoduodenectomy (PD) largely depends on the reduction in the incidence of clinically relevant (CR) postoperative pancreatic fistula (POPF). METHODS: After internal validation of the clinical risk score (CRS) of POPF, and identification of other predictive factors for POPF, robotic (RPD), and open (OPD) PDs were stratified into risk categories and matched by propensity scores. The primary endpoint of this study was incidence of CR-POPF...
August 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28812069/the-sensitivity-of-folding-free-energy-landscapes-of-trpzips-to-mutations-in-the-hydrophobic-core
#20
Madhulika Gupta, Prabir Khatua, Charusita Chakravarty, Sanjoy Bandyopadhyay
The sensitivity of the stability of folded states and free energy landscapes to the differences in the hydrophobic content of the core residues has been studied for the set of 16-residue trpzips, namely, Trpzip4, Trpzip5 and Trpzip6. The combination of principal component analysis and different secondary structure order metrics as reaction coordinates has been used to characterize and identify all the underlying attractive basins corresponding to the folded and the unfolded states for each trpzip at 300 K. Our results reveal that even a single mutation in the hydrophobic core perturbs the stability of the folded peptide and the conformational preferences for the partially folded and unfolded states significantly, leading to concomitant alterations in the free energy landscape of trpzips...
August 16, 2017: Physical Chemistry Chemical Physics: PCCP
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