1039 Development of a tree-based graded response model R package to test for differential item functioning in patient-reported outcome measures Olayinka Arimoro 1 , Matthew James 1 , Maria Santana 1 , Lisa Lix 2 , Tolulope Sajobi 1 1 University of Calgary, Calgary, Alberta, Canada, 2 University of Manitoba, Winnipeg, Manitoba, Canada Journal of Patient-Reported Outcomes 2026 , 10(Suppl 1) :1039 Aims Tree-based item response theory (IRT) models are a class of novel methods for testing differential item functioning (DIF) in patient-reported outcome measures (PROMs)
In cigarette smoke (CS)-exposed 16HBE cells, vitamin D exhibited anti-inflammatory effects, but not in primary hBECs [15]
Rico S, North A, Lin JS, NM, Corash L
Your PlexusDx provider will guide the transition timing to avoid gaps in appetite control and to prevent unwanted metabolic rebound during the switch