scholarly journals Survival analysis of 8785 malignant lymphoma cases in the oral and nasal cavities in the USA: a cohort study

BMJ Open ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. e048876
Author(s):  
Feifei Jiang ◽  
Ai-Hui Yan
Keyword(s):  
Survival Analysis ◽  
Survival Rate ◽  
Oral Cavity ◽  
Malignant Lymphoma ◽  
Cox Regression ◽  
Female Gender ◽  
Malignant Lymphomas ◽  
Factors Associated ◽  
Nasal Cavities ◽  
The Usa

ObjectiveTo identify the factors associated with the survival of malignant Hodgkin and non-Hodgkin lymphomas in oral and nasal cavities.Study design. Retrospective cohort survival analysis.MethodsThe Surveillance, Epidemiology and End Results 18 database was used to analyse the factors associated with the 5-year survival rate of malignant lymphomas diagnosed in the oral cavity and pharynx (OCP) and nasal cavity and sinus (NCS) regions from 1988 to 2011 for all patients in the USA. Multivariable Cox regression models were used to calculate the HR of malignant lymphoma death overall and by the site of cancer diagnosis.ResultsAmong the 8785 patients included in the analysis, 4103 (46.7%) were women, 6096 (69.4%) were non-Hispanic (NH) white, 635 (7.2%) were NH black and 1209 (13.8%) were Hispanic patients of all races. We found that a higher 5-year survival rate of malignant lymphoma is associated with: female gender; younger age at diagnosis; NH white race/ethnicity; diagnosis in the oral cavity; receiving surgery/radiation and surgery/radiation, surgery and chemotherapy as the treatment; diagnosis at a localised stage and diagnosis in later calendar years. No association with lymphoma subtype was observed.ConclusionWe have identified several demographics and prognosis factors associated with the 5-year survival rate of malignant lymphomas in the OCP and NCS regions. These findings warrant greater public health attention on the prognosis of malignant lymphomas in the OCP and NCS regions among the most vulnerable populations.

MR-guided laser-induced thermotherapy (LITT) in liver metastases of colorectal cancer: Long-term survival data.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e14131-e14131
Author(s):  
Thomas J. Vogl ◽  
Alena Dommermuth ◽  
Katrin Eichler ◽  
Stephan Zangos
Keyword(s):  
Overall Survival ◽  
Survival Analysis ◽  
Survival Rate ◽  
Lymph Nodes ◽  
Liver Metastases ◽  
Median Survival ◽  
Cox Regression ◽  
Term Survival ◽  
Median Survival Rate

e14131 Background: To evaluate retrospectively long-term survival of 594 patients with colorectal liver metastases treated with MR-guided laser-induced thermotherapy (LITT) depending on different factors. Methods: 594 patients with liver metastases from colorectal carcinoma treated with MR-guided LITT between 01/99 and 12/10 were included. For survival analysis tumor localization, TNM classification, number of metastases, diameter and volume of metastases and necrosis, lobular spread, number of treatment sessions, performance of adjuvant chemotherapy and transarterial chemoembolisation were considered. The Kaplan-Meier method was used to conduct this survival analysis. Results: Log-rank test showed statistically significant differences between survival curves, multivariate Cox-regression-analysis (p<0.05) showed prognostic factors regarding overall survival like number of metastases pre intervention, adjuvant chemotherapy, diameter of metastases, ratio of volumes of necrosis and metastases, and affected lymph nodes. Median overall survival rate at the time of first LITT was 25 months, 1-year survival: 78%, 2-year survival: 50.1%, 3-year survival: 28%; 4-year survival: 16.4%; 5-year survival: 7.8%. Numbers of metastases pre intervention: 1-2 metastases with a median survival rate of 60 months; 3-4 metastases: 45 months; ≥5 metastases: 42 months. Median survival rate for metastases <20mm in diameter 36 months; 20-30mm 27 months, 30-40mm 24 months and >40mm 21 months. Affected lymph nodes: median survival rate for patients with N0-classification 30 months, N1-classification 24 months; N2/N3/N4-classification 22 months. Conclusions: Multivariate Cox regression model provided the minimal number of significant variables with the maximal prognostic value concerning overall survival for MR-guided LITT, i.e., diameter and number of metastases and primary classification of lymph nodes.

Primary Surgery vs Radiotherapy for Early Stage Oral Cavity Cancer

2017 ◽  
Vol 158 (4) ◽  
pp. 649-659 ◽  
Author(s):  
Mark A. Ellis ◽  
Evan M. Graboyes ◽  
Amy E. Wahlquist ◽  
David M. Neskey ◽  
John M. Kaczmar ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Oral Cavity ◽  
Cox Regression ◽  
Early Stage ◽  
Multivariable Analysis ◽  
Cox Regression Analysis ◽  
Factors Associated ◽  
Primary Surgery ◽  
Increased Risk ◽  
Low Volume

Objective The goal of this study is to determine the effect of primary surgery vs radiotherapy (RT) on overall survival (OS) in patients with early stage oral cavity squamous cell carcinoma (OCSCC). In addition, this study attempts to identify factors associated with receiving primary RT. Study Design Retrospective cohort study. Setting National Cancer Database (NCDB, 2004-2013). Subjects and Methods Reviewing the NCDB from 2004 to 2013, patients with early stage I to II OCSCC were identified. Kaplan-Meier estimates of survival, Cox regression analysis, and propensity score matching were used to examine differences in OS between primary surgery and primary RT. Multivariable logistic regression analysis was performed to identify factors associated with primary RT. Results Of the 20,779 patients included in the study, 95.4% (19,823 patients) underwent primary surgery and 4.6% (956 patients) underwent primary RT. After adjusting for covariates, primary RT was associated with an increased risk of mortality (adjusted hazard ratio [aHR], 1.97; 99% confidence interval [CI], 1.74-2.22). On multivariable analysis, factors associated with primary RT included age ≥70 years, black race, Medicaid or Medicare insurance, no insurance, oral cavity subsite other than tongue, clinical stage II disease, low-volume treatment facilities, and earlier treatment year. Conclusion Primary RT for early stage OCSCC is associated with increased mortality. Approximately 5% of patients receive primary RT; however, this percentage is decreasing. Patients at highest risk for receiving primary RT include those who are elderly, black, with public insurance, and treated at low-volume facilities.

scholarly journals Job Search Duration and Business Preparation Duration: An Empirical Study of Micro Data in Indonesia with Cox Regression

2020 ◽  
Vol 16 (1) ◽  
pp. 56-70
Author(s):  
Hendri Cahyo Dwi Safitri ◽  
Bambang Eko Afiatno
Keyword(s):  
Survival Analysis ◽  
Survival Rate ◽  
Marital Status ◽  
Job Search ◽  
Cox Regression ◽  
Job Experience ◽  
Total Unit ◽  
Education Training ◽  
The Difference ◽  
Level Training

Abstract: This study aims to analyze the difference in job search duration and business preparation duration based on education level, training, job experience, marital status, age, and sex. The total unit of analysis used in this study is 51,112 individuals sourced from National Labor Force Survey (Sakernas) conducted in August 2017. This study applies the Survival Analysis with Cox Regression. The survival rate results show that unemployed people who prepare a business will get a job faster than their counterparts who are still looking for a job. Cox regression testing shows that education, training, marital status, and age have significantly affected job search duration in Indonesia. Meanwhile, education, training, and marital status have significantly influenced the period of business preparation in Indonesia.                                      Keywords: unemployment, job search duration, business preparation duration, cox regression, survival analysis Lama Mencari Kerja dan Lama Mempersiapkan Usaha: Studi Empiris Data Mikro di Indonesia Abstrak: Penelitian ini bertujuan untuk menganalisis perbedaan lama mencari kerja dan lama mempersiapkan usaha dilihat dari tingkat pendidikan, pelatihan, pengalaman kerja, status perkawinan, umur, serta jenis kelamin. Total unit analisis yang digunakan sebanyak 51.112 individu yang bersumber dari data Survei Angkatan Kerja Nasional (Sakernas) Agustus 2017. Metode analisis yang digunakan adalah Survival Analysis dengan Cox Regression. Hasil survival rate menunjukkan bahwa pengangguran yang mempersiapkan usaha akan lebih cepat memperoleh pekerjaan dibandingkan dengan pengangguran yang mencari pekerjaan. Pengujian dengan cox regression menunjukkan bahwa pendidikan, pelatihan, status perkawinan, dan umur berpengaruh signifikan terhadap lama mencari pekerjaan di Indonesia. Sedangkan pendidikan, pelatihan, dan status perkawinan berpengaruh signifikan terhadap lama mempersiapkan usaha di Indonesia.                                      Kata kunci: pengangguran, lama mencari kerja, lama mempersiapkan usaha, regresi cox, analisis survival 

scholarly journals Survival after surgery among patients with cholangiocarcinoma in Northeast Thailand according to anatomical and morphological classification

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Chaiwat Tawarungruang ◽  
Narong Khuntikeo ◽  
Nittaya Chamadol ◽  
Vallop Laopaiboon ◽  
Jaruwan Thuanman ◽  
...  
Keyword(s):  
Survival Rate ◽  
Survival Time ◽  
Median Survival ◽  
Median Survival Time ◽  
Cox Regression ◽  
Survival Rates ◽  
Care Program ◽  
Tumor Location ◽  
Northeast Thailand ◽  
Curative Surgery

Abstract Background Cholangiocarcinoma (CCA) has been categorized based on tumor location as intrahepatic (ICCA), perihilar (PCCA) or distal (DCCA), and based on the morphology of the tumor of the bile duct as mass forming (MF), periductal infiltrating (PI) or intraductal (ID). To date, there is limited evidence available regarding the survival of CCA among these different anatomical and morphological classifications. This study aimed to evaluate the survival rate and median survival time after curative surgery among CCA patients according to their anatomical and morphological classifications, and to determine the association between these classifications and survival. Methods This study included CCA patients who underwent curative surgery from the Cholangiocarcinoma Screening and Care Program (CASCAP), Northeast Thailand. The anatomical and morphological classifications were based on pathological findings after surgery. Survival rates of CCA and median survival time since the date of CCA surgery and 95% confidence intervals (CI) were calculated. Multiple cox regression was performed to evaluate factors associated with survival which were quantified by hazard ratios (HR) and their 95% CIs. Results Of the 746 CCA patients, 514 had died at the completion of the study which constituted 15,643.6 person-months of data recordings. The incidence rate was 3.3 per 100 patients per month (95% CI: 3.0–3.6), with median survival time of 17.8 months (95% CI: 15.4–20.2), and 5-year survival rate of 24.6% (95% CI: 20.7–28.6). The longest median survival time was 21.8 months (95% CI: 16.3–27.3) while the highest 5-year survival rate of 34.8% (95% CI: 23.8–46.0) occurred in the DCCA group. A combination of anatomical and morphological classifications, PCCA+ID, was associated with the longest median survival time of 40.5 months (95% CI: 17.9–63.0) and the highest 5-year survival rate of 42.6% (95% CI: 25.4–58.9). The ICCA+MF combination was associated with survival (adjusted HR: 1.45; 95% CI: 1.01–2.09; P = 0.013) compared to ICCA+ID patients. Conclusions Among patients receiving surgical treatment, those with PCCA+ID had the highest 5-year survival rate, which was higher than in groups classified by only anatomical characteristics. Additionally, the patients with ICCA+MF tended to have unfavorable surgical outcomes. Showed the highest survival association. Therefore, further investigations into CCA imaging should focus on patients with a combination of anatomical and morphological classifications.

scholarly journals Mechanical circulatory support for refractory out-of-hospital cardiac arrest: a Danish nationwide multicenter study

Critical Care ◽  
2021 ◽  
Vol 25 (1) ◽  
Author(s):  
Sivagowry Rasalingam Mørk ◽  
Carsten Stengaard ◽  
Louise Linde ◽  
Jacob Eifer Møller ◽  
Lisette Okkels Jensen ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Cardiac Arrest ◽  
Survival Rate ◽  
Neurological Outcome ◽  
Mechanical Circulatory Support ◽  
Circulatory Support ◽  
Good Neurological Outcome ◽  
Factors Associated ◽  
National Consensus ◽  
Hospital Cardiac Arrest

Abstract Background Mechanical circulatory support (MCS) with either extracorporeal membrane oxygenation or Impella has shown potential as a salvage therapy for patients with refractory out-of-hospital cardiac arrest (OHCA). The objective of this study was to describe the gradual implementation, survival and adherence to the national consensus with respect to use of MCS for OHCA in Denmark, and to identify factors associated with outcome. Methods This retrospective, observational cohort study included patients receiving MCS for OHCA at all tertiary cardiac arrest centers (n = 4) in Denmark between July 2011 and December 2020. Logistic regression and Kaplan–Meier survival analysis were used to determine association with outcome. Outcome was presented as survival to hospital discharge with good neurological outcome, 30-day survival and predictors of 30-day mortality. Results A total of 259 patients were included in the study. Thirty-day survival was 26%. Sixty-five (25%) survived to hospital discharge and a good neurological outcome (Glasgow–Pittsburgh Cerebral Performance Categories 1–2) was observed in 94% of these patients. Strict adherence to the national consensus showed a 30-day survival rate of 30% compared with 22% in patients violating one or more criteria. Adding criteria to the national consensus such as signs of life during cardiopulmonary resuscitation (CPR), pre-hospital low-flow < 100 min, pH > 6.8 and lactate < 15 mmol/L increased the survival rate to 48%, but would exclude 58% of the survivors from the current cohort. Logistic regression identified asystole (RR 1.36, 95% CI 1.18–1.57), pulseless electrical activity (RR 1.20, 95% CI 1.03–1.41), initial pH < 6.8 (RR 1.28, 95% CI 1.12–1.46) and lactate levels > 15 mmol/L (RR 1.16, 95% CI 1.16–1.53) as factors associated with increased risk of 30-day mortality. Patients presenting signs of life during CPR had reduced risk of 30-day mortality (RR 0.63, 95% CI 0.52–0.76). Conclusions A high survival rate with a good neurological outcome was observed in this Danish population of patients treated with MCS for OHCA. Stringent patient selection for MCS may produce higher survival rates but potentially withholds life-saving treatment in a significant proportion of survivors.

scholarly journals High Expression of KLF10 Is Associated with Favorable Survival in Patients with Oral Squamous Cell Carcinoma

Medicina ◽  
2020 ◽  
Vol 57 (1) ◽  
pp. 17
Author(s):  
Chung-Min Yeh ◽  
Yi-Ju Lee ◽  
Po-Yun Ko ◽  
Yueh-Min Lin ◽  
Wen-Wei Sung
Keyword(s):  
Survival Rate ◽  
Oral Cancer ◽  
Cancer Patients ◽  
Protective Factor ◽  
Female Gender ◽  
Vital Role ◽  
Cancer Stage ◽  
Independent Prognostic Marker ◽  
Oral Cancer Patients ◽  
The Impact

Background and objectives: Krüppel-like transcription factor 10 (KLF10) plays a vital role in regulating cell proliferation, including the anti-proliferative process, activation of apoptosis, and differentiation control. KLF10 may also act as a protective factor against oral cancer. We studied the impact of KLF10 expression on the clinical outcomes of oral cancer patients to identify its role as a prognostic factor in oral cancer. Materials and Methods: KLF10 immunoreactivity was analyzed by immunohistochemical (IHC) stain analysis in 286 cancer specimens from primary oral cancer patients. The prognostic value of KLF10 on overall survival was determined by Kaplan–Meier analysis and the Cox proportional hazard model. Results: High KLF10 expression was significantly associated with male gender and betel quid chewing. The 5-year survival rate was greater for patients with high KLF10 expression than for those with low KLF10 expression (62.5% vs. 51.3%, respectively; p = 0.005), and multivariate analyses showed that high KLF10 expression was the only independent factor correlated with greater overall patient survival. The significant correlation between high KLF10 expression and a higher 5-year survival rate was observed in certain subgroups of clinical parameters, including female gender, non-smokers, cancer stage T1, and cancer stage N0. Conclusions: KLF10 expression, detected by IHC staining, could be an independent prognostic marker for oral cancer patients.

scholarly journals Testing the proportional hazards assumption in cox regression and dealing with possible non-proportionality in total joint arthroplasty research: methodological perspectives and review

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Ilari Kuitunen ◽  
Ville T. Ponkilainen ◽  
Mikko M. Uimonen ◽  
Antti Eskelinen ◽  
Aleksi Reito
Keyword(s):  
Survival Analysis ◽  
Regression Model ◽  
Total Joint Arthroplasty ◽  
Full Text ◽  
Proportional Hazards ◽  
Cox Regression ◽  
Joint Arthroplasty ◽  
Central Research ◽  
Cox Regression Model ◽  
Pubmed Database

Abstract Background Survival analysis and effect of covariates on survival time is a central research interest. Cox proportional hazards regression remains as a gold standard in the survival analysis. The Cox model relies on the assumption of proportional hazards (PH) across different covariates. PH assumptions should be assessed and handled if violated. Our aim was to investigate the reporting of the Cox regression model details and testing of the PH assumption in survival analysis in total joint arthroplasty (TJA) studies. Methods We conducted a review in the PubMed database on 28th August 2019. A total of 1154 studies were identified. The abstracts of these studies were screened for words “cox and “hazard*” and if either was found the abstract was read. The abstract had to fulfill the following criteria to be included in the full-text phase: topic was knee or hip TJA surgery; survival analysis was used, and hazard ratio reported. If all the presented criteria were met, the full-text version of the article was then read. The full-text was included if Cox method was used to analyze TJA survival. After accessing the full-texts 318 articles were included in final analysis. Results The PH assumption was mentioned in 114 of the included studies (36%). KM analysis was used in 281 (88%) studies and the KM curves were presented graphically in 243 of these (87%). In 110 (45%) studies, the KM survival curves crossed in at least one of the presented figures. The most common way to test the PH assumption was to inspect the log-minus-log plots (n = 59). The time-axis division method was the most used corrected model (n = 30) in cox analysis. Of the 318 included studies only 63 (20%) met the following criteria: PH assumption mentioned, PH assumption tested, testing method of the PH assumption named, the result of the testing mentioned, and the Cox regression model corrected, if required. Conclusions Reporting and testing of the PH assumption and dealing with non-proportionality in hip and knee TJA studies was limited. More awareness and education regarding the assumptions behind the used statistical models among researchers, reviewers and editors are needed to improve the quality of TJA research. This could be achieved by better collaboration with methodologists and statisticians and introducing more specific reporting guidelines for TJA studies. Neglecting obvious non-proportionality undermines the overall research efforts since causes of non-proportionality, such as possible underlying pathomechanisms, are not considered and discussed.

scholarly journals Impella CP Implantation during Cardiopulmonary Resuscitation for Cardiac Arrest: A Multicenter Experience

2021 ◽  
Vol 10 (2) ◽  
pp. 339
Author(s):  
Vassili Panagides ◽  
Henrik Vase ◽  
Sachin P. Shah ◽  
Mir B. Basir ◽  
Julien Mancini ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Survival Rate ◽  
Cardiopulmonary Resuscitation ◽  
Univariate Analysis ◽  
Cerebral Performance Category ◽  
Neurological Impairment ◽  
Left Ventricular ◽  
Circulatory Support ◽  
Factors Associated ◽  
Analysis Survival

Background: Impella CP is a left ventricular pump which may serve as a circulatory support during cardiopulmonary resuscitation (CPR) for cardiac arrest (CA). Nevertheless, the survival rate and factors associated with survival in patients undergoing Impella insertion during CPR for CA are unknown. Methods: We performed a retrospective multicenter international registry of patients undergoing Impella insertion during on-going CPR for in- or out-of-hospital CA. We recorded immediate and 30-day survival with and without neurologic impairment using the cerebral performance category score and evaluated the factors associated with survival. Results: Thirty-five patients had an Impella CP implanted during CPR for CA. Refractory ventricular arrhythmias were the most frequent initial rhythm (65.7%). In total, 65.7% of patients immediately survived. At 30 days, 45.7% of patients were still alive. The 30-day survival rate without neurological impairment was 37.1%. In univariate analysis, survival was associated with both an age < 75 years and a time from arrest to CPR ≤ 5 min (p = 0.035 and p = 0.008, respectively). Conclusions: In our multicenter registry, Impella CP insertion during ongoing CPR for CA was associated with a 37.1% rate of 30-day survival without neurological impairment. The factors associated with survival were a young age and a time from arrest to CPR ≤ 5 min.

Survival Analysis of Geriatric Patients with Low Digestive Hemorrhage Attending an Emergency Department

Gerontology ◽  
2021 ◽  
pp. 1-6
Author(s):  
Ana Fernandez-Suárez ◽  
Oriol Yuguero Torres
Keyword(s):  
Emergency Department ◽  
Survival Analysis ◽  
Retrospective Study ◽  
Survival Rate ◽  
Life Expectancy ◽  
Antiplatelet Therapy ◽  
Geriatric Patients ◽  
Digestive Hemorrhage ◽  
Kaplan Meier ◽  
Number Of Individuals

<b><i>Background:</i></b> The increase in life expectancy and low mortality have doubled the number of individuals older than 65 in the last 30 years. <b><i>Methods:</i></b> We conducted a retrospective study of 101 patients older than 80 years of age treated by low digestive hemorrhage (LDH) in an emergency department during 2018. Sociodemographic variables were evaluated, as well as comorbidity and survival at 18 months. Survival was assessed by a Kaplan-Meier test. <b><i>Results:</i></b> 52.5% of the subjects were women. The average comorbidity of the sample was 1.97. The survival rate per year was 60%. The finding on colonoscopy shows no association with mortality. However, those patients on anticoagulant/antiplatelet therapy have a higher survival rate. <b><i>Conclusion:</i></b> Survival per year is high, so urgent colonoscopy for an LDH should be performed after evaluating the patient’s stability and functional status in a scheduled and outpatient manner.

scholarly journals FRI0248 PROGNOSTIC FACTORS FOR STEROID-FREE REMISSION IN PATIENTS WITH IDIOPATHIC INFLAMMATORY MYOPATHIES: IMPORTANCE OF ANTHROPOMETRIC MEASUREMENTS

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 708.1-708
Author(s):  
J. S. Lee ◽  
S. H. Nam ◽  
S. J. Choi ◽  
W. J. Seo ◽  
S. Hong ◽  
...  
Keyword(s):  
Prognostic Factors ◽  
Cox Regression ◽  
Idiopathic Inflammatory Myopathies ◽  
Inflammatory Myopathies ◽  
Immunosuppressant Therapy ◽  
Muscle Enzymes ◽  
Cox Regression Analysis ◽  
Factors Associated ◽  
Early Use

Background:Several studies have been conducted on factors associated with mortality in idiopathic inflammatory myopathies (IIM), but few studies have assessed prognostic factors for steroid-free remission in IIM.Objectives:We investigated the various clinical factors, including body measurements, that affect IIM treatment outcomes.Methods:Patients who were newly diagnosed with IIM between 2000 and 2018 were included. Steroid-free remission was defined as at least three months of normalisation of muscle enzymes and no detectable clinical disease activity. The factors associated with steroid-free remission were evaluated by a Cox regression analysis.Results:Of the 106 IIM patients, 35 displayed steroid-free remission during follow-up periods. In the multivariable Cox regression analyses, immunosuppressants’ early use within one month after diagnosis [hazard ratio (HR) 6.21, 95% confidence interval (CI) 2.61–14.74, p < 0.001] and sex-specific height quartiles (second and third quartiles versus first quartile, HR 3.65, 95% CI 1.40–9.51, p = 0.008 and HR 2.88, 95% CI 1.13–7.32, p = 0.027, respectively) were positively associated with steroid-free remission. Polymyositis versus dermatomyositis (HR 0.21, 95% CI 0.09–0.53, p = 0.001), presence of dysphagia (HR 0.15, CI 0.05–0.50, p = 0.002) and highest versus lowest quartile of waist circumference (WC) (HR 0.24, 95% CI 0.07–0.85, p = 0.027) were negatively associated with steroid-free remission.Conclusion:The early initiation of immunosuppressant therapy, type of myositis and presence of dysphagia are strong predictors of steroid-free remission in IIM; moreover, height and WC measurements at baseline may provide additional important prognostic value.Disclosure of Interests:None declared

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