Case Control Study
Copyright ©The Author(s) 2017.
World J Orthop. Dec 18, 2017; 8(12): 895-901
Published online Dec 18, 2017. doi: 10.5312/wjo.v8.i12.895
Table 1 Study patient demographics
NEMWWESO
Female61.60%61.10%60.60%61.40%
Male38.40%38.90%39.40%38.60%
Age (yr)9%9%9%12%
≤ 649%9%9%12%
65-6923%24%26%24%
70-7422%22%23%22%
75-7921%21%20%20%
80-8416%15%14%14%
≥ 8510%9%9%8%