Publications
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Displaying 51 through 100 of 147 publications.
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Williams VS, Nelson LM, Fehnel SE, MacDougall J, Carson RT, Tourkodimitris S, Kurtz C, Baird MJ, Johnston JM. Psychometric validation of symptom severity measures in irritable bowel syndrome with constipation. Aliment Pharmacol Ther. 2014 Aug;40(3):298-308. doi: 10.1111/apt.12830
Webb S, Ware JE, Forsythe A, Yang M, Badia X, Nelson LM, Signorovitch JE, McLeod L, Maldonado M, Zgliczylski W, De Block C, Portocarrero-Ortiz L, Gadelha MR. Treatment effectiveness of pasireotide on health-related quality of life in patients with Cushing's disease. Eur J Endocrinol. 2014 Jul;171(1):89-98. doi: 10.1530/EJE-13-1013
Bollu V, Nelson LM, Williams VS, Stensland MD, Stull DE. Symptom response profiles for patients with chronic obstructive pulmonary disease initiating nebulized arformoterol tartrate or placebo. Poster presented at the 2014 ISPOR 19th Annual International Meeting; June 3, 2014.
Lewis S, Price M, Dwyer KA, O'Brien S, Heekin RD, Yates PJ, Beverland D, Mordin M. Development of a scale to assess performance following primary total knee arthroplasty. Value Health. 2014 Apr 21;17(4):350-9. doi: 10.1016/j.jval.2014.01.006
Nelson LM, Forsythe A, McLeod L, Pulgar S, Maldonado M, Coles T, Zhang Y, Webb SM, Badia X. Psychometric evaluation of the Cushing's Quality-of-Life Questionnaire. Patient. 2013 Apr 1;Advance Online.
Forsyth B, Fehnel SE, Danchenko N, Franois C, Brevig T. Assessing impacts of major depressive disorder (MDD) on cognitive function. Value Health. 2012 Nov 1;15(7):A341.
Carson R, Nelson LM, Williams VS, Fehnel SE, Tourkodimitris S, Baird M, et al a. Psychometric evaluation of patient-reported outcome measures for assessing ibs-c symptom severity and change: results from 2 randomized, double-blind, placebo-controlled phase 3 trials of linaclotide. Poster presented at the Annual Scientific Meeting of the American College of Gastroenterology; October 1, 2012.
Carson R, Baird M, Coon C, Fehnel SE, MacDougall J, Nelson LM. Psychometric evaluation of patient-reported outcome measures assessing IBS-C symptom severity and change: results from two randomized, double-blind, placebo-controlled phase 3 trials of linaclotide. Presented at the ISOQOL 19th Annual Conference; October 1, 2012.
Nelson LM, Williams VS, Carson R, Baird M, Coon C, Fehnel SE. Factor analyses of chronic constipation patient-reported outcome measures: results from phase 2b and phase 3 trials of linaclotide. Poster presented at the Annual Scientific Meeting of the American College of Gastroenterology; October 1, 2012. Previously presented at the Joint International Neurogastroenterology and Motility Meeting.
Coon CD, Bokowy KL, Horblyuk R, Zisman RS, McLeod LD, Brown MT. The development and initial assessment of the strategy and leadership systems capability evaluation survey. Health Care Manag (Frederick). 2012 Oct 1;31(4):332-41.
Engelhart L, Nelson L, Lewis S, Mordin M, Demuro-Mercon C, Uddin S, McLeod L, Cole B, Farr J. Knee injury and osteoarthritis outcome score subscales for patients with articular cartilage lesions of the knee. Am J Sports Med. 2012 Oct 1;40(10):2264-72.
Forsyth B, Fehnel SE, Danchenko N, François C, Brevig T. Patient-reported cognitive symptoms and a patient-reported outcome measure of cognitive function in depression. Poster presented at the Annual European College of Neuropsychopharmacology Congress; October 1, 2012.
Baird M, Carson R, Coon CD, Fehnel SE, MacDougall J, Nelson LM, Williams VS. Psychometric validation of patient-reported outcome measures assessing chronic constipation symptom severity: results from phase 2b and phase 3 trials of linaclotide. Poster presented at the ISOQOL 19th Annual Conference; October 2012.
Nelson LM, Williams VSL, Fehnel SE, Tourkodimitris S, Baird MJ, Carson RT, Johnston JM. Psychometric evaluation of patient-reported outcome measures for assessing chronic constipation symptom severity and change: results from phase 2b and phase 3 trials of linaclotide. Presented at the Joint International Neurogastroenterology and Motility Meeting; September 2012. [abstract] Neurogastroenterol Motil. 2012 Sep 6; 24(Suppl. s2):180.
Williams VSL, Nelson LM, Carson RT, Baird MJ, Coon CD, Fehnel SE, Johnston JM. Factor analyses of patient-reported outcome measures in Irritable Bowel Syndrome with Constipation (IBS-C): results from two randomized, double-blind, placebo-controlled phase 3 trials of linaclotide. Presented at the 2012 ACG Annual Meeting and Postgraduate Course; September 1, 2012. Previously presented at the Joint International Neurogastroenterology and Motility Meeting.
Williams VS, Nelson LM, Carson RT, Baird MJ, Coon CD, Fehnel SE. Factor analyses of patient-reported outcome measures in irritable bowel syndrome with constipation (IBS-C): results from two randomized, double-blind, placebo-controlled phase 3 trials of linaclotide. Poster presented at the Joint International Neurogastroenterology and Motility Meeting; September 1, 2012.
Spiegel BMR, Locke G, Kurtz CM, Williams VSL, Nelson LM, Carson RT, Currie MG, Schneier HA, Johnston JM. Clinically meaningful change benchmarks for IBS-C symptoms developed using data from two phase 3 trials of linaclotide. Presented at the Joint International Neurogastroenterology and Motility Meeting; September 2012. Bologna, Italy. [abstract] Neurogastroenterol Motil. 2012 Sep; 24(s2):35.
Nelson LM, Williams VSL, Carson RT, Baird MJ, Fehnel SE, Johnston JM. Factor analyses of patient-reported outcome measures in Irritable Bowel Syndrome with Constipation (IBSC): results from two randomized, double-blind, placebo-controlled phase 3 trials of linaclotide. Poster presented at the Joint International Neurogastroenterology and Motility Meeting; September 2012. Bologna, Italy. [abstract] Neurogastroenterol Motil. 2012 Sep 1; 24(Suppl. 2):106. doi: 10.1111/j.1365-2982.2012.01997.x
Nelson LM, Williams VS, Carson RT, Baird MJ, Coon CD, Fehnel SE. Factor analyses of chronic constipation patient-reported outcome measures: results from phase 2b and phase 3 trials of linaclotide. Presented at the Joint International Neurogastroenterology and Motility Meeting; September 1, 2012.
Badia X, Roset M, Forsythe A, Coles TM, McLeod LD, Nelson LM. Clinical and patient-reported outcomes associated to pasireotide in patients with Cushing's disease. Poster presented at the 15th Annual Congress of the European Neuroendocrine Association; September 2012.
Carson RT, Nelson LM, Williams VSL, Fehnel SE, Tourkodimitris S, Baird MJ, Johnston JM. Psychometric evaluation of patient-reported outcome measures for assessing IBS-C symptom severity and change: results from two randomized, double-blind, placebo-controlled phase 3 trials of linaclotide. Poster presented at the Joint International Neurogastroenterology and Motility Meeting; September 2012. [abstract] Neurogastroenterol Motil. 2012 Sep 1; 24(Suppl. 2):179.
Spiegel BMR, Locke GR, Kurtz C, Williams VS, Nelson LM, Carson RT. Developing benchmarks for clinically meaningful change for ibs-c symptoms using data from two phase 3 trials of linaclotide. Poster presented at the 2012 Digestive Disease Week; May 2012.
Coon CD, Fehnel SE, Davis KH, Runken MC, Beach ME, Cady RK. The development of a survey to measure completeness of response to migraine therapy. Headache. 2012 Apr 1;52(4):550-72.
Arnold LM, Williams DA, Hudson JI, Martin SA, Clauw DJ, Crofford LJ, Wang F, Emir B, Lai C, Zablocki R, Mease PJ. Development of responder definitions for fibromyalgia clinical trials. Arthritis Rheum. 2012 Mar 1;64(3):885-94.
Clark M, Hofmann A, Tabberer M, Martin S. Development and content validity of the COPD device preference questionnaire. Poster presented at the 2011 ISPOR 14th Annual European Congress; November 9, 2011. [abstract] Value Health. 2011 Nov; 14(7):A255.
Williams VS, Nelson LM, Gilligan TM, Fehnel SE, Baird MJ, Carson RT. The relationship between changes in PRO measures of IBS-C symptoms and the IBS-QOL: results from two phase 3 trials of linaclotide. Poster presented at the 18th Annual Conference of the International Society for Quality of Life Research; October 1, 2011.
McLeod LD, Pulgar S, Nelson LM, Maldonado M, Gilligan T, Zhang Y. Psychometric evaluation of the Cushing's quality of life questionnaire (CushingQOL). Poster presented at the 18th Annual Conference of the International Society for Quality of Life Research; October 2011.
McLeod LD, Williams VS, Nelson LM, Coon CD. Psychometrics for the non-psychometrician – part I. Presented at the 18th Annual Conference of the International Society for Quality of Life Research; October 2011.
Nelson LM, Williams VS, Gilligan TN, Fehnel SE, Baird MJ, Carson RT. Examining the relationship between changes in pro measures of chronic constipation symptoms and the pac-qol: results from two phase 3 trials of linaclotide. Poster presented at the 18th Annual Conference of the International Society for Quality of Life Research; October 1, 2011.
Coon CD, Nelson LM, Gilligan T. Advanced psychometric methods for PRO development – factor analysis. Presented at the 18th Annual Conference for the International Society for Quality of Life Research; October 2011.
Coon CD, Nelson LM, McLeod LD, Williams VS. Psychometrics for the non-psychometrician – part II. Presented at the 18th Annual Conference of the International Society for Quality of Life Research; October 2011.
McKenna SP, Meads DM, Doward LC, Twiss J, Pokrzywinski R, Revicki D, Hunter CJ, Glendenning GA. Development and validation of the living with chronic obstructive pulmonary disease questionnaire. Qual Life Res. 2011 Sep 1;20(7):1043-52.
Stull DE, van Hanswijck de Jonge P, Houghton K, Kocun C, Sandor DW. Development of a frequent heartburn index. Qual Life Res. 2011 Sep 1;20(7):1023-34.
Dalal AA, Nelson L, Gilligan TM, McLeod LD, Lewis SE, DeMuro C. Measurement comparability between paper and alternate versions: recommended assessment steps using the lung function questionnaire as an example. Poster presented at the 2011 ISPOR 16th Annual International Meeting; May 25, 2011. [abstract] Value Health. 2011 May; 14(3):A145.
Gilligan TM, Nelson L, Dalal AA, McLeod LD. Visually evaluating the measurement comparability between paper-based and alternate versions of administration of the lung function questionnaire. Poster presented at the 2011 ISPOR 16th Annual International Meeting; May 25, 2011. [abstract] Value Health. 2011 May; 14(3):A153.
Dalal A, DeMuro-Mercon CJ, Lewis SA, Nelson LM, Gilligan T, McLeod LD. Mixed modes of administration of the lung function questionnaire: validation in subjects with smoking history. Poster presented at the International Conference of the American Thoracic Society; May 2011.
Dalal AA, Demuro-Mercon C, Lewis S, Nelson L, Gilligan T, McLeod L. Validation of alternate modes of administration of the lung function questionnaire (LFQ) in subjects with smoking history. Int J Chron Obstruct Pulmon Dis. 2010 Dec 1;5:425-34.
Williams VSL, Carson RT, Nelson LM, MacDougall J, Fehnel SE, Lewis B, Johnston JM. Application of exploratory factor analysis to support the conceptual framework of PRO measures: results from a phase 2 study of irritable bowel syndrome with constipation. Poster presented at the International Society for Quality of Life Research (ISOQOL) 2010 Annual Meeting; November 18, 2010.
Coon CD, Price MA, Nelson LM. Advanced patient-reported outcomes assessment: psychometric methods. Presented at the 2010 ISPOR 13th Annual European Congress; November 2010. Prague, Czech Republic.
Nelson LM, McLeod LD, Mordin MM, Farr J, Cole BJ, Uddin S, Engelhart L. Psychometric evaluation of the Knee Injury and Osteoarthritis Outcome Score (KOOS) subscales for patients with articular cartilage lesions of the knee using pilot study data of the Cartilage Autograft Implantation System (CAIS). Poster presented at the 9th World Congress of the International Cartilage Repair Society; September 2010.
Fehnel SE, Coon CD, Davis KH, Runken MC, Cady RK. Development and Psychometric Evaluation of the Migraine Completeness of Response Survey (CORS). Poster presented at the 52nd Annual Scientific Meeting of the American Headache Society; June 2010. [abstract] Headache. 2010 Aug; 50(s1):S49-50.
Goldberg JF, McLeod LD, Fehnel SE, Williams VSL, Hamm LR, Gilchrist K. Development and psychometric evaluation of the Bipolar Functional Status Questionnaire (BFSQ). Bipolar Disord. 2010 Feb 1;12(1):32-44.
Spiegel B, Camilleri M, Bolus R, Andresen V, Chey WD, Fehnel S, Mangel A, Talley NJ, Whitehead WE. Psychometric evaluation of patient-reported outcomes in irritable bowel syndrome randomized controlled trials: a Rome foundation report. Gastroenterology. 2009 Dec 1;137(6):1944-53.
Mast TC, Zhu XS, Demuro-Mercon C, Cummings HW, Sings HL, Ferris DG. Development and psychometric properties of the HPV Impact Profile (HIP) to assess the psychosocial burden of HPV. Curr Med Res Opin. 2009 Nov 1;25(11):2609-19.
Hill C, McLeod LD. Advanced psychometric methods for PRO development - Item response theory. Presented at the 16th Annual Conference of the International Society for Quality of Life Research; October 2009.
Pattanayak SK, Poulos C, Yang JC, Patil SR, Wendland KJ. Of taps and toilets: quasi-experimental protocol for evaluating community-demand-driven projects. J Water Health. 2009 Sep 1;7(3):434-51.
Cappelleri JC, Bushmakin AG, McDermott AM, Dukes E, Sadosky A, Petrie CD, Martin SA. Measurement properties of the medical outcomes study sleep scale in patients with fibromyalgia. Sleep Med. 2009 Aug;10(7):766-70.
Arbuckle R, Clark M, Harness J, Bonner N, Scott J, Draelos Z, Rizer R, Yeh Y, Copley-Merriman K. Item reduction and psychometric validation of the oily skin self assessment scale (OSSAS) and the oily skin impact scale (OSIS). Value Health. 2009 Jul 1;12(5):828-37.
McLeod LD. Estimating minimally important differences: trying to answer the so what? Presented at the Statistical and Applied Mathematical Sciences Institute: 2009 Summer Program on Psychometrics; July 2009.
Cappelleri JC, Bushmakin AG, McDermott AM, Sadosky AB, Petrie CD, Martin SA. Psychometric properties of a single-item scale to assess sleep-quality among individuals with fibromyalgia. Health Qual Life Outcomes. 2009 Jun;7(54):54.