Case Control Study
Copyright ©The Author(s) 2020.
World J Clin Cases. Jun 6, 2020; 8(11): 2150-2161
Published online Jun 6, 2020. doi: 10.12998/wjcc.v8.i11.2150
Table 5 Relationship between age groups and bone mineral density in patients with chronic pain
Age group (yr)nNormal BMD (%)Reduced BMD (%)Osteoporosis (%)c2P value
< 453227 (49.09)4 (5.41)1 (1.82)
45-648624 (43.63)43 (58.11)19 (34.55)58.9330.000
≥ 65664 (7.27)27 (36.49)35 (63.64)
Total18455 (100)74 (100)55 (100)