Qin S, Nelson L, Williams N, Williams V, Bender R, McLeod L. Comparison of anchor-based methods for estimating thresholds of meaningful within-patient change using simulated PROMIS PF 20a data under various joint distribution characteristic conditions. Qual Life Res. 2023 May;32(5):1277-93. doi: 10.1007/s11136-022-03285-x
Lansdall CJ, McDougall F, Butler LM, Delmar P, Pross N, Qin S, McLeod L, Zhou X, Kerchner GA, Doody RS. Establishing clinically meaningful change on outcome assessments frequently used in trials of mild cognitive impairment due to Alzheimer's disease. J Prev Alzheimers Dis. 2023;10(1):9-18. doi: 10.14283/jpad.2022.102
Stander S, Zeidler C, Pereira M, Szepietowski JC, McLeod L, Qin S, Williams N, Sciascia T, Augustin M. Worst itch numerical rating scale for Prurigo Nodularis: a psychometric evaluation. J Eur Acad Dermatol Venereol. 2022 Apr;36(4):573-81. doi: 10.1111/jdv.17870
Qin S, McLeod L, Ma J, Cai J. Initial psychometric evaluation of the eczema symptom and impact diary in patients with moderate to severe atopic dermatitis from a phase 2 trial. Poster presented at the 2022 American Academy of Dermatology (AAD) Annual Meeting; March 25, 2022. Boston, MA.
Qin S, Nelson L, McLeod L, Ma J, López Sánchez B, Gamil M, Stevens M, Jane Scott J. Psychometric evaluation of the pediatric RSV severity and outcomes rating system version 7 (PRESORSv7.1, observer-reported and PRESORSv7 clinician- reported forms) scores in young children hospitalized with respiratory syncytial virus infection. Presented at the 2021 Virtual Visual ISOQOL 28th Annual Conference; October 12, 2021. [abstract] Qual Life Res. 2021; 30(Suppl 1):S16-7. doi: https://doi.org/10.1007/s11136-021-02976-1
Fastenau J, Rozjabek H, Qin S, McLeod L, Nelson L, Ma J, Harris N. Psychometric evaluation of the DAILY EATS questionnaire in individuals living with obesity. J Patient Rep Outcomes. 2020 Nov 23;4(1):99. doi: 10.1186/s41687-020-00259-w
Lansdall CJ, Butler LM, Kerchner G, McDougall F, Delmar P, Pross N, Qin S, McLeod L, Baudler M, Fontoura P, Doody R. Anchor- and distribution-based methods to establish clinically meaningful score changes on the Clinical Dementia Rating Scale – Sum of Boxes in patients with prodromal Alzheimer's Disease. Presented at the 12th Clinical Trials in Alzheimer’s Disease (CTAD) Meeting; December 6, 2019.
Qin S, Nelson L, McLeod L, Eremenco S, Coons SJ. Assessing test-retest reliability of patient-reported outcome measures using intraclass correlation coefficients: recommendations for selecting and documenting the analytical formula. Qual Life Res. 2019 Apr;28(4):1029-33. doi: 10.1007/s11136-018-2076-0
Qin S, Coles T, Nelson L, McLeod L, Williams V, Williams N, Reaney M. CDFs and PDFs: comparing visual methods supporting responder thresholds in clinical trials. Poster presented at the 2018 ISPOR 23rd Annual International Meeting; May 21, 2018. Baltimore, MD. [abstract] Value Health. 2018 May; 21(Suppl):S53. doi: 10.1016/j.jval.2018.04.442
Qin S, Coles T, Nelson L, Williams V, Williams N, McLeod L. What impacts the stability of anchor-based responder definitions? Presented at the ISOQOL 24th Annual Conference; October 19, 2017. Philadelphia, PA.
McLeod L, Sikirica MV, Qin S, Joshi AV, Sweeney CT, Blum SI. Psychometric evaluation of the nausea and vomiting questionnaire in patients with type 2 diabetes mellitus receiving a glucagon-like peptide-1 receptor agonist. Poster presented at the 2017 ISPOR 22nd Annual International Meeting; May 23, 2017. Boston, MA. [abstract] Value Health. 2017 May; 20(5):A175.