Defining the Study Cohort: Inclusion and Exclusion Criteria

2020 ◽  
pp. 47-58
Author(s):  
Emily Z. Keung ◽  
Lisa M. McElroy ◽  
Daniela P. Ladner ◽  
Elizabeth G. Grubbs
Keyword(s):  
Study Cohort ◽  
Exclusion Criteria

Defining the Study Cohort: Inclusion and Exclusion Criteria

2013 ◽  
pp. 131-139 ◽  
Author(s):  
Lisa M. McElroy ◽  
Daniela P. Ladner
Keyword(s):  
Study Cohort ◽  
Exclusion Criteria

Impact of broadening clinical trial eligibility criteria for advanced non-small cell lung cancer patients: Real-world analysis.

2019 ◽  
Vol 37 (18_suppl) ◽  
pp. LBA108-LBA108 ◽  
Author(s):  
R. Donald Harvey ◽  
Wendy S. Rubinstein ◽  
Gwynn Ison ◽  
Sean Khozin ◽  
Li Chen ◽  
...  
Keyword(s):  
Brain Metastases ◽  
Stage Iv ◽  
Disease Diagnosis ◽  
Trial Participation ◽  
Study Cohort ◽  
Exclusion Criteria ◽  
Eligibility Criteria ◽  
Lung Cancer Patients ◽  
Expanded Criteria ◽  
Never Smokers

LBA108 Background: Restrictive trial eligibility criteria limit data generalizability and patient opportunity to participate. We compared numbers and characteristics of patients (pts) eligible using traditional vs expanded criteria recommended by ASCO and Friends of Cancer Research. Methods: A retrospective, observational analysis used deidentified EHR data from ASCO’s CancerLinQ database. Study cohort included adult aNSCLC pts with ≥2 visits and ≥1 dose of systemic treatment post-advanced-disease diagnosis from 2011-2018. Recorded creatinine clearance (CrCl) or Cockcroft-Gault variables were required. Pts were grouped by traditional criteria (no brain metastases, no other malignancies and CrCl >60 mL/min) and expanded criteria (brain metastases and other malignancies allowed and CrCl >30 mL/min). Results: 10,500 pts were identified (Table). Median age 67.6 years [IQR 60.3-74.4]. 56% were male, and 65% white. 60% were Stage IV, 80% former or current smokers. 5005 (47.7%) pts were excluded by traditional exclusion criteria, while only 154 (1.5%) pts were excluded by expanded criteria. Expanded criteria patients were older (67.5 v 66.1, p<0.001); and more likely to be female (44% v 40%), Stage IV (60% v 55%), have non-squamous histology (47% v 45%), and never smokers (16% v 13%). Additional analysis is needed to differentiate treated/stable vs. active brain metastases. Conclusions: Use of the ASCO-Friends expanded criteria would enable nearly twice as many aNSCLC pts to be considered for trial participation (4,851 patients, 46.2%). Narrower criteria should only be used based on compelling scientific rationale for exclusion. [Table: see text]

scholarly journals Treatment of Meatal Strictures by Dorsal Inlay Oral Mucosa Graft Urethroplasty: A Single-Center Experience

2021 ◽  
Vol 10 (19) ◽  
pp. 4312
Author(s):  
Michel Wirtz ◽  
Wietse Claeys ◽  
Philippe Francois ◽  
Marjan Waterloos ◽  
Mieke Waterschoot ◽  
...  
Keyword(s):  
Oral Mucosa ◽  
Study Cohort ◽  
Exclusion Criteria ◽  
Free Survival ◽  
Entire Cohort ◽  
Single Center Experience ◽  
Buccal Mucosal Graft ◽  
Stricture Recurrence ◽  
Oral Mucosa Graft

Background: To report on the use of oral mucosa graft urethroplasty for meatal strictures using the dorsal inlay technique. Methods: Patients who underwent a single-stage dorsal inlay oral mucosal graft urethroplasty between January 2000 and May 2021 were included in this study. A follow-up of a minimum of 12 months was necessary for inclusion. Exclusion criteria were stricture extension into the penile urethra, concomitant stricture at another location, flap urethroplasty for a meatal stricture, dorsal inlay urethroplasty with another type of graft, ventral onlay graft urethroplasty or staged urethroplasty. Recurrence was defined by the inability to pass a 14F metal sound through the reconstructed meatus irrespective of patients’ complaints. Results: Our study cohort included 40 patients. Buccal mucosal graft (BMG) urethroplasty was used in 25 patients and 15 patients were treated with the aid of lingual mucosal graft (LMG). The median follow-up was 85 (IQR: 69–110) months. Seven (17.5%) patients suffered a stricture recurrence of which four (10%) needed re-intervention. The median 5-y recurrent free survival (RFS) for the entire cohort was 85 (±6)%. The median 5-y RFS was 96 (±4)% versus 65 (±13)% for respectively BMG and LMG (p = 0.03). Post-operative complications were identified in 11 (27.5%) patients with only one (2.5%) patient who had a grade 3a complication. Conclusions: Dorsal inlay oral mucosa graft urethroplasty is a safe and feasible technique for selected patients with meatal stenosis.

The Effect of Screw Design on Union Rates in Scaphoid Nonunions

Hand Surgery ◽  
2015 ◽  
Vol 20 (02) ◽  
pp. 273-279 ◽  
Author(s):  
Jiwei Wu ◽  
Shian Chao Tay ◽  
Alexander Y. Shin
Keyword(s):  
Screw Fixation ◽  
Study Cohort ◽  
Union Rate ◽  
Exclusion Criteria ◽  
Herbert Screw ◽  
Screw Design ◽  
Comparison And Analysis

Background: The purpose of this study is to compare the outcome of the conical fully threaded headless screw to that of a smooth shaft headless screw in a series of scaphoid nonunions requiring screw fixation to determine if screw design had an influence on union rates. Methods: We retrospectively reviewed 104 cases of surgically treated scaphoid nonunions. After eliminating cases with our exclusion criteria, the study cohort had 40 cases for analysis. A comparison and analysis of union rates was undertaken between the fully threaded Acutrak 2 mini screw and the smooth shaft Herbert screw. Results: Overall union rate for screw fixation was 88%. The fully threaded conical screw fixation had a significantly lower union rate of 50% compared to 97% for the smooth shaft screws. Conclusions: Our data revealed that the fully threaded conical screws were associated with significantly lower union rate compared to the smooth shaft Herbert type screws.

Collecting occupational data for a national stroke study cohort: Methodology of the NIOSH-regards study

2013 ◽  
Author(s):  
Leslie A. MacDonald ◽  
Lea Vonne Pulley ◽  
Misty J. Hein ◽  
Kaori Fujishiro ◽  
Virginia J. Howard
Keyword(s):  
Study Cohort ◽  
Stroke Study ◽  
Regards Study

Stents for the Treatment of Aortic Aneurysms

1999 ◽  
Vol 82 (S 01) ◽  
pp. 171-175 ◽  
Author(s):  
D. Ebert ◽  
M. Langer ◽  
P. Uhrmeister
Keyword(s):  
Endovascular Treatment ◽  
Endovascular Repair ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Imaging Modalities ◽  
Exclusion Criteria ◽  
Multicenter Studies ◽  
Abdominal Aortic ◽  
First Results

SummaryThe endovascular treatment of abdominal aortic aneurysms has generated a great deal of interest since the early 1990s, and many different devices are currently available. The procedure of endovascular repair has been evaluated in many institutions and the different devices are compared. The first results were encouraging, but complications like endoleak, dislocation or thrombosis of the graft occurred. By the available devices the stent application is only promising, if the known exclusion criteria are strictly respected. Therefore a careful preinterventional assessment of the patient by different imaging modalities is necessary. As the available results up to now are preliminary and the durability of the devices has to be controlled, multicenter studies are required to improve the devices and observe their long- term success in the exclusion of abdominal aortic aneurysms.

Diagnostic Value of a Carpal Tunnel Corticosteroid Injection in Patients with Negative Electrodiagnostic Studies

2020 ◽  
Author(s):  
Brian M. Katt ◽  
Casey Imbergamo ◽  
Fortunato Padua ◽  
Joseph Leider ◽  
Daniel Fletcher ◽  
...  
Keyword(s):  
Carpal Tunnel ◽  
Corticosteroid Injection ◽  
Carpal Tunnel Release ◽  
False Negative ◽  
False Negative Rate ◽  
Signs And Symptoms ◽  
Diagnostic Value ◽  
Symptom Improvement ◽  
Study Cohort ◽  
Chi Square Analysis

Abstract Introduction There is a known false negative rate when using electrodiagnostic studies (EDS) to diagnose carpal tunnel syndrome (CTS). This can pose a management dilemma for patients with signs and symptoms that correlate with CTS but normal EDS. While corticosteroid injection into the carpal tunnel has been used in this setting for diagnostic purposes, there is little data in the literature supporting this practice. The purpose of this study is to evaluate the prognostic value of a carpal tunnel corticosteroid injection in patients with a normal electrodiagnostic study but exhibiting signs and symptoms suggestive of carpal tunnel, who proceed with a carpal tunnel release. Materials and Methods The group included 34 patients presenting to an academic orthopedic practice over the years 2010 to 2019 who had negative EDS, a carpal tunnel corticosteroid injection, and a carpal tunnel release. One patient (2.9%), where the response to the corticosteroid injection was not documented, was excluded from the study, yielding a study cohort of 33 patients. Three patients had bilateral disease, yielding 36 hands for evaluation. Statistical analysis was performed using Chi-square analysis for nonparametric data. Results Thirty-two hands (88.9%) demonstrated complete or partial relief of neuropathic symptoms after the corticosteroid injection, while four (11.1%) did not experience any improvement. Thirty-one hands (86.1%) had symptom improvement following surgery, compared with five (13.9%) which did not. Of the 32 hands that demonstrated relief following the injection, 29 hands (90.6%) improved after surgery. Of the four hands that did not demonstrate relief after the injection, two (50%) improved after surgery. This difference was statistically significant (p = 0.03). Conclusion Patients diagnosed with a high index of suspicion for CTS do well with operative intervention despite a normal electrodiagnostic test if they have had a positive response to a preoperative injection. The injection can provide reassurance to both the patient and surgeon before proceeding to surgery. Although patients with a normal electrodiagnostic test and no response to cortisone can still do well with surgical intervention, the surgeon should carefully review both the history and physical examination as surgical success may decrease when both diagnostic tests are negative. Performing a corticosteroid injection is an additional diagnostic tool to consider in the management of patients with CTS and normal electrodiagnostic testing.

Outcome of Patch Test on Crack Sole among Bangladeshi Population

2020 ◽  
Vol 7 (2) ◽  
pp. 64-67
Author(s):  
Abu Sayeed Mohammad ◽  
Shahadat Hossain ◽  
Zulfiqur Hossain Khan
Keyword(s):  
Patch Test ◽  
Clinical History ◽  
Significant Morbidity ◽  
Exclusion Criteria ◽  
Study Population ◽  
Bangladeshi Population ◽  
One Year ◽  
Medical University ◽  
Age Range ◽  
Test Result

Background: Crack sole may produce significant morbidity among the physical labourer. Objective: The purpose of this study was to find out the patch test result in crack sole which was due to allergic contactants. Methodology: This test was conducted in the Department at Dermatology and Venereology of Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh from July 2001 to June 2002 for a period of one year. Patients with crack sole were selected as study population. All patients were asked about the details clinical history. Patch test was done by individually prepared alminium Finn Chamber mounted on scanpore tape. Result: A total number of 15 patients were recruited for this study after fulfilling the inclusion and exclusion criteria. The age range was 8 years to 70 years. Among 15 patients 3 patients were patch test positive remaining 12 patients were patch test negative. Two patient were female and one was male. Conclusion: In conclusion patch test is positive among the crack sole patients. Journal of Current and Advance Medical Research 2020;7(2): 64-67

563-P: Differentially Expressed Plasma miRNAs Are Closely Associated with the Presence of Microvascular Complications in Type 2 Diabetes: The 1000 Qatar-Omics Study Cohort

Diabetes ◽  
2020 ◽  
Vol 69 (Supplement 1) ◽  
pp. 563-P
Author(s):  
AMMIRA S. AKIL ◽  
SUJITHA SUBASH PADMAJEYA ◽  
LAILA A. JERMAN ◽  
ALYA AL-KURBI ◽  
AMAL M. HUSSEIN ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Microvascular Complications ◽  
Differentially Expressed ◽  
Study Cohort ◽  
Plasma Mirnas

Indian Dermoscopic Study of One Thirty Eight Cases of Alopecia Areata

2018 ◽  
Vol 3 (02) ◽  
Author(s):  
Rahul Kumar Sharma, Divya Sharma, Rajendra Kumar Sharma
Keyword(s):  
Alopecia Areata ◽  
Smart Phone ◽  
Cotton Wool ◽  
Exclusion Criteria ◽  
Dermatology Clinic ◽  
Exclamation Mark ◽  
Single Feature ◽  
Males And Females ◽  
Vellus Hairs ◽  
Difficult Cases

Alopecia areata (AA) is a type of non-scarring alopecia first described by Cornelius Celsus, characterized by hair loss without any clinical inflammatory signs and affecting both males and females equally. The activity of AA is by the presence of black dots, broken hair, and tapering, furthermore black dots and yellow dots are equated to severity of AA. Aim - To study dermoscopic features of untreated cases of alopecia areata. Study subjects-All the patients who attended the dermatology clinic from March 2015 to March 2017 with the clinical diagnosis of alopecia areata and who fulfilled the inclusion and exclusion criteria. Study period - Two year (from March 2015 to March 2017). Methodology - All the patients who attended the dermatology clinic from March 2015 to March 2017 with the diagnosis of alopecia areata and who fulfilled the inclusion and exclusion criteria were recruited for the study. Trichoscopy was performed with DL4 dermatoscope. The images were further magnified with smart phone. Results - We got various dermoscopic signs in different combinations in our study. Yellow dots were seen in 10 cases, White dots in cotton wool pattern were seen in 3 cases, Black dots were seen in 25 cases, Dermoscopic coudability sign was demonstrated in 38 cases, Pigtail hairs were present in 2 cases, five cases showed short vellus hairs, Short broken hairs were found in 18 cases, Exclamation mark hairs were very common and were detected in 131 patients out of 138. Discussion - Single feature is not leading to the diagnosis so we should use combination of features which will help in difficult cases like AA incognito. Dermatoscope is an indispensible valuable tool in trichology practice which helps in prognosticating and making early diagnosis of AA. It also helps to differentiate it from trichotillomania and other causes of alopecia. In our study the incidence of AA was almost similar in both sexes. Our study revealed that exclamation mark hair is very common and sensitive dermoscopic marker of AA.

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