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Catastrophizing, state anxiety, anger, and depressive symptoms do not correlate with disability when variations of trait anxiety are taken into account. a study of chronic low back pain patients treated in Spanish pain units [NCT00360802].
Moix J, Kovacs FM, Martín A, Plana MN, Royuela A; Spanish Back Pain Research Network. Moix J, et al. Pain Med. 2011 Jul;12(7):1008-17. doi: 10.1111/j.1526-4637.2011.01155.x. Epub 2011 Jun 13. Pain Med. 2011. PMID: 21668743