Table 2.

The association between lumbar BMD and Sarcopenia

	Model1 [OR (95% CI)]	Model2 [OR (95% CI)]	Model3 [OR (95% CI)]
Lumbar BMD	0.02(0.01,0.03)	0.06(0.03,0.11)	0.07(0.02,0.19)
Lumbar BMD (continuous)
Q1	Reference	Reference	Reference
Q2	0.58(0.47,0.71)	0.67(0.55,0.83)	0.79(0.57,1.09)
Q3	0.35(0.28,0.44)	0.47(0.37,0.59)	0.39(0.26,0.59)
Q4	0.24(0.19,0.31)	0.36(0.28,0.48)	0.42(0.28,0.64)
P for trend	< 0.0001	< 0.0001	< 0.0001
Stratified by gender
Male	0.04(0.02,0.08)	0.09(0.04,0.21)	0.14(0.03,0.53)
Female	0.01(0.00,0.02)	0.04(0.01,0.10)	0.04(0.01,0.21)
Stratified by BMI
< 25	0.01(0.00,0.05)	0.03(0.00,0.29)	0.31(0.01,8.07)
25–29.9	0.01(0.00,0.02)	0.02(0.01,0.08)	0.01(0.00,0.07)
≥ 30	0.03(0.02,0.07)	0.09(0.04,0.20)	0.11(0.03,0.40)
Stratified by age
< 30	0.01(0.00,0.03)	0.01(0.00,0.08)	0.02(0.00,0.52)
30–40	0.01(0.00,0.05)	0.02(0.01,0.12)	0.01(0.00,0.16)
40–50	0.01(0.00,0.05)	0.03(0.01,0.12)	0.03(0.00,0.26)
≥ 50	0.01(0.04,0.24)	0.20(0.08,0.50)	0.21(0.05,0.98)

Model 1: no covariates were adjusted

Model 2: age, sex, and race were adjusted

Model 3: age, sex, race, education level, marital status, smoking status, alcohol status, diabetes status, hypertension status, creatinine, serum uric acid, glycohemoglobin, fasting glucose, HDL-C, total cholesterol, triglycerides, LDL-C, PIR, and albumin were adjusted. 95% CI, 95% confidence interval; OR, odds ratio; Q, quartile; BMI, body mass index

In the subgroup analysis stratified by gender, BMI, and race, the model is not adjusted for sex, BMI, and race, respectively