REFERENCES
1. Sherching B, Kaswoski W, Marek T. Relationship between risk factors and musculoskeletal disorders in the nursing profession: a systematic review. Occup Ergon 2004;4:241-79.
2. Corona G, Amedei F, Miselli F, Padalino MP, Tibaldi S, Franco G. Association between relational and organizational factors and occurrence of musculoskeletal disease in health personnel. G Ital Med Lav Ergon 2005;27:208-12. (in Italian)
3. Violante FS, Fiori M, Fiorentini C, Risi A, Garagnani G, Bonfiglioli R, Mattioli S. Associations of psychological and individual factors with three different categories of back disorders among nursing staff. J Occup Health 2004;46:100-8.
4. Davis KG, Heaney CA. The relationship between psychosocial work characteristics and low back pain: underlying methodological issues. Clin Biomech (Bristol, Avon) 2000;15:389-406.
5. van Vuuren B, Zinzen E, van Heerden HJ, Becker PJ, Meeusen R. Work and family support systems and the prevalence of lower back problems in a South African steel industry. J Occup Rehabil 2007;17:409-21.
7. Benzon HT, Raja SN, Molby RE, Liu SS, Fishman SM. Essentials of pain medicine and regional anaesthesia. 2nd ed. Philadelphia: Elsevier; 2005. pp. 5-12.
8. Ballantyne J, Fishman SM, Abdi S. The Massachusetts general hospital handbook of pain management. 2nd ed. Philadelphia: Lippincott Williams and Wilkins; 2002. pp. 58-61.
9. Gridley L, van den Dolder PA. The percentage improvement in pain scale as a measure of physiotherapy treatment effects. Aust J Physiother 2001;47:133-8.
10. Hadjistavropoulos T, Herr K, Turk DC, Fine PG, Dworkin RH, Helme R, Jackson K, Parmelee PA, Rudy TE, Lynn Beattie B, Chibnall JT, Craig KD, Ferrell B, Ferrell B, Fillingim RB, Gagliese L, Gallagher R, Gibson SJ, Harrison EL, Katz B, Keefe FJ, Lieber SJ, Lussier D, Schmader KE, Tait RC, Weiner DK, Williams J. An interdisciplinary expert consensus statement on assessment of pain in older persons. Clin J Pain 2007;23:1-43.
11. Jelsma JM. The validity of the Shona version of the EQ-5D, of life measure. S Afr J Physiother 2002;58:8-12.
12. Olaogun MOB, Adedoyin RA, Anitaloba RO. Reliability and concurrent validity of the visual analogue scale and modified verbal rating scale of pain assessment in adult patients with knee osteoarthritis in Nigeria. S Afr J Physiother 2003;59:12-5.
13. Moffet J, Mclean S. The role of physiotherapy in the management of non-specific back pain and neck pain. Rheumatology (Oxford) 2006;45:371-8.
14. Wong DL, Baker CM. Pain in children: comparison of assessment scales. Pediatr Nurs 1988;14:9-17.
15. Kim EJ, Buschman MT. Reliability and validity of the faces pain scale with older adults. Int J Nurs Stud 2006;43:447-56.
16. Cote C, Lerman J, Todres ID. A practice of anesthesia for infants and children. 4th ed. Philadelphia: Elsevier; 2009. pp. 940-65.
17. Araoye MO. "Sample size determination," in research methodology with statistics for health and social sciences. Nathadex: Ilorin, Nigeria; 2004. pp. 115-22.
18. Iyaoromi OO, Madaki AJ, Dankyau M. Relationship between low back pain and work-place functioning of nurses at a tertiary hospital in North Central Nigeria. Internet J Healthc Administr 2016;11:1-7.
19. Sikiru L, Shmaila H. Prevalence and risk factors for LBP among nurses in Africa: Nigeria and Ethiopian specialized hospital survey study. East Afr J Public Health 2009;6:22-5.
20. Lønnberg F, Pedersen PA, Siersma V. Early predictors of the long-term outcome of low back pain--results of a 22-year prospective cohort study. Fam Pract 2010;27:609-14.
21. Dankyau M, Shu'aibu JA, Oyebanji AE, Mamven O, Chima GA. Family functioning of staff of an urban hospital in Nigeria. Internet J Fam Pract 2016;14:1-6.
22. Baur H, Grebner S, Blasimann A, Hirschmüller A, Kubosch EJ, Elfering A. Work-family conflict and neck and back pain in surgical nurses. Int J Occup Saf Ergon 2016;22:1-23.
