Association between BMI and osteoporotic fractures at different sites in Chinese women: a case-control retrospective study in Changsha

Table 1 Comparison of variables of clinical fractures according to fracture sites

Variable	Case(TOTAL)	Control	Case(VF)	Control	Case(FF)	Control	Case(OF)	Control
n (%)	3098(100)	3098(100)	2296(74.1)	2296(74.1)	374(12.1)	374(12.1)	428(13.8)	428(13.8)
Age(years)	67.0±8.71	67.0±8.72	67.0±8.40	67.0±8.40	70.2±9.32	70.2±9.32	64.0±8.78	64.0±8.78
AM(years)	48.3±3.70^a	49.1±3.78	48.3±3.55^b	49.1±3.78	48.6±3.65^b	49.2±3.71	48.2±4.42^b	49.0±3.84
YSM(years)	19.0±8.78^b	18.4±8.96	19.0±8.50^a	18.3±8.71	21.8±9.32	21.4±9.87	16.4±9.04	16.2±8.72
Height(cm)	150.9±6.39^a	152.2± 5.21	150.2±6.27^a	152.2±5.21	152.0±6.71	151.7±5.37	153.4±5.98^b	153.4±5.05
Weight(kg)	51.9±8.53^a	55.2±8.78	51.3±8.61^a	55.3±8.82	52.2±7.84^a	54.8±8.99	55.0±7.96	54.9±8.32
BMI(kg/m²)	22.8±3.28^a	23.8±3.43	22.7±3.37^a	23.8±3.44	22.6±3.07^a	23.8±3.59	23.3±2.96	23.6±3.24
PA-BMD(g/cm²)	0.632±0.114^a	0.754±0.139	0.613±0.108^a	0.762±0.134	0.661±0.115^a	0.753±0.143	0.706±0.111	0.715±0.152
FN-BMD(g/cm²)	0.514± 0.095^a	0.618± 0.112	0.509±0.094^a	0.614±0.109	0.495±0.091^a	0.600±0.112	0.559±0.094^a	0.659±0.122
Hip-BMD(g/cm²)	0.593± 0.116^a	0.695±0.129	0.587±0.115^a	0.691±0.126	0.572±0.108^a	0.671±0.132	0.646±0.113^a	0.735±0.132

Data are means ± standard deviations (SDs)
VF vertebral fracture, FF femoral neck fracture, OF other types fractures AM, age at menopause, YSM years since menopause, BMI body mass index PA posteroanterior spine BMD bone mineral density; FN femoral neck, Hip total hip
^ap < 0.001 compared with controls
^bp = 0.048–0.005 compared with controls

ISSN: 1471-2474