Sawatzky R: Differential item functioning in the SF-36 physical functioning and mental health sub-scales: A population-based investigation in the Canadian Multicentre Osteoporosis Study

Lix LM, Wu X, Hopman W, Mayo N, Sajobi TT, Liu J, Prior JC, Papaioannou A, Josse RG, Towheed TE, Davison KS, Sawatzky R. Differential item functioning in the SF-36 physical functioning and mental health sub-scales: A population-based investigation in the Canadian Multicentre Osteoporosis Study. PLoS One. 2016 Mar 21; 11(3):e0151519. doi: 10.1371/journal.pone.0151519. eCollection 2016. PMID: 26998611.