1. Greenspan JD, Craft RM, LeResche L, et al. Studying sex and gender differences in pain and analgesia: a consensus report. Pain 2007 132 Suppl 1:S26–45.
3. Neziri AY, Scaramozzino P, Andersen OK, Dickenson AH, Arendt-Nielsen L, Curatolo M. Reference values of mechanical and thermal pain tests in a pain-free population. Eur J Pain 2011 15:376–83.
4. Watanabe K, Matsumoto M, Ikegami T, et al. Reduced postoperative wound pain after lumbar spinous process-splitting laminectomy for lumbar canal stenosis: a randomized controlled study. J Neurosurg Spine 2011 14:51–8.
6. Fillingim RB, Doleys DM, Edwards RR, Lowery D. Clinical characteristics of chronic back pain as a function of gender and oral opioid use. Spine (Phila Pa 1976) 2003 28:143–50.
7. Andersson HI, Ejlertsson G, Leden I, Rosenberg C. Chronic pain in a geographically defined general population: studies of differences in age, gender, social class, and pain localization. Clin J Pain 1993 9:174–82.
8. Padua L, Padua R, Mastantuoni G, Pitta L, Caliandro P, Aulisa L. Health-related quality of life after surgical treatment for lumbar stenosis. Spine (Phila Pa 1976) 2004 29:1670–4.
9. Ishimoto Y, Yoshimura N, Muraki S, et al. Prevalence of symptomatic lumbar spinal stenosis and its association with physical performance in a populationbased cohort in Japan: the Wakayama Spine Study. Osteoarthritis Cartilage 2012 20:1103–8.
10. Lurie JD, Birkmeyer NJ, Weinstein JN. Rates of advanced spinal imaging and spine surgery. Spine (Phila Pa 1976) 2003 28:616–20.
11. Leinonen V, Maatta S, Taimela S, et al. Paraspinal muscle denervation, paradoxically good lumbar endurance, and an abnormal flexion-extension cycle in lumbar spinal stenosis. Spine (Phila Pa 1976) 2003 28:324–31.
12. Zanoli G, Romanini E, Padua R, Traina GC, Massari L. EBM in musculoskeletal diseases: where are we? Acta Orthop Scand Suppl 2002 73:4–7.
13. Stucki G, Daltroy L, Liang MH, Lipson SJ, Fossel AH, Katz JN. Measurement properties of a self-administered outcome measure in lumbar spinal stenosis. Spine (Phila Pa 1976) 1996 21:796–803.
14. Chiba K, Toyama Y, Matsumoto M, Maruiwa H, Watanabe M, Nishizawa T. Intraspinal cyst communicating with the intervertebral disc in the lumbar spine: discal cyst. Spine (Phila Pa 1976) 2001 26:2112–8.
15. Fukui M, Chiba K, Kawakami M, et al. JOA Back Pain Evaluation Questionnaire (JOABPEQ)/JOA Cervical Myelopathy Evaluation Questionnaire (JOACMEQ): the report on the development of revised versions. April 16, 2007. The Subcommittee of the Clinical Outcome Committee of the Japanese Orthopaedic Association on Low Back Pain and Cervical Myelopathy Evaluation. J Orthop Sci 2009 14:348–65.
16. Roland M, Morris R. A study of the natural history of low-back pain: part II: development of guidelines for trials of treatment in primary care. Spine (Phila Pa 1976) 1983 8:145–50.
17. Turner-Bowker DM, Bayliss MS, Ware JE Jr, Kosinski M. Usefulness of the SF-8 Health Survey for comparing the impact of migraine and other conditions. Qual Life Res 2003 12:1003–12.
19. Kroner-Herwig B, Gassmann J, Tromsdorf M, Zahrend E. The effects of sex and gender role on responses to pressure pain. Psychosoc Med 2012 9:Doc01.
20. Racine M, Tousignant-Laflamme Y, Kloda LA, Dion D, Dupuis G, Choiniere M. A systematic literature review of 10 years of research on sex/gender and experimental pain perception: part 1: are there really differences between women and men? Pain 2012 153:602–18.
21. Racine M, Tousignant-Laflamme Y, Kloda LA, Dion D, Dupuis G, Choiniere M. A systematic literature review of 10 years of research on sex/gender and pain perception: part 2: do biopsychosocial factors alter pain sensitivity differently in women and men? Pain 2012 153:619–35.
22. Unruh AM. Gender variations in clinical pain experience. Pain 1996 65:123–67.
26. Katz JN, Wright EA, Guadagnoli E, Liang MH, Karlson EW, Cleary PD. Differences between men and women undergoing major orthopedic surgery for degenerative arthritis. Arthritis Rheum 1994 37:687–94.
27. Kim HJ, Suh BG, Lee DB, et al. Gender difference of symptom severity in lumbar spinal stenosis: role of pain sensitivity. Pain Physician 2013 16:E715–23.
28. Trivedi MH. The link between depression and physical symptoms. Prim Care Companion J Clin Psychiatry 2004 6(Suppl 1): 12–6.
31. Marcic M, Mihalj M, Ivica N, Pintaric I, Titlic M. How severe is depression in low back pain patients? Acta Clin Croat 2014 53:267–71.