The association between abdominal obesity and femoral neck bone mineral density in older adults

Table 3 Association between waist circumference (cm) and femoral neck bone mineral density (mg/cm²) among older adults, stratified by body mass index

	Model 1 (ß, 95% CI)	Model 2 (ß, 95% CI)	Model 3 (ß, 95% CI)	Model 4 (ß, 95% CI)
Men
BMI (< 25 kg/m²) (n = 762)	2.0 (0.8, 3.2)***	3.1 (1.9, 4.2)***	−1.5 (−3.2, 0.2)	−1.6 (−3.4, 0.1)
BMI (25–29.9 kg/m²) (n = 1,277)	−1.3 (−2.4, −0.2)*	−0.0 (−1.2, 1.1)	−2.2 (−3.5, −0.9)**	−2.0 (−3.4, −0.7)**
BMI (≥ 30 kg/m²) (n = 932)	0.7 (−0.2, 1.7)	0.9 (−0.1, 1.8)	−2.5 (−4.1, −0.9)**	−1.7 (−3.3, −0.0)*
Women
BMI (< 25 kg/m²) (n = 788)	2.4 (1.5, 3.4)***	2.4 (1.5, 3.3)***	0.6 (−0.7, 1.8)	0.7 (−0.6, 2.0)
BMI (25–29.9 kg/m²) (n = 1,012)	0.4 (−0.6, 1.5)	0.7 (−0.3, 1.7)	0.1 (−1.1, 1.2)	0.4 (−0.8, 1.5)
BMI (≥ 30 kg/m²) (n = 1,030)	−0.1 (−0.9, 0.7)	−0.4 (−1.2, 0.4)	−2.4 (−3.6, −1.3)***	−2.1 (−3.2, −0.9)***

Model 1: no covariates were adjusted
Model 2: age and race were adjusted
Model 3: model 2 plus body mass index were adjusted
Model 4: model 3 plus education level, income-poverty ratio, moderate recreational activities, alcohol use, smoking cigarettes, blood urea nitrogen, total protein, serum uric acid, serum glucose, serum phosphorus, serum calcium, and serum 25(OH)D were adjusted
BMI, body mass index
*P < 0.05, **P < 0.01, ***P < 0.001

ISSN: 1749-799X