Table 3. Associations Between TBS and LS-VBMD: Adjusted for BMI, Trunk Fat Mass, or Trunk Lean Mass and Stratified by TBS Category.

	TBS category (n= 3479)
	Degraded (TBS=0.74–1.20) (n=807)	Partially degraded (TBS=1.21–1.34) (n =1747)	Normal (TBS= 1.35–1.63) (n = 925)
Model 1
TBS	0.29 (0.20–0.37)	0.47 (0.36–0.58)	0.73 (0.56–0.90)
BMI	0.34 (0.28–0.40)	0.36 (0.32–0.41)	0.29 (0.21–0.36)
Model 2
TBS	0.19 (0.11–0.28)	0.39 (0.27–0.51)	0.72 (0.55–0.89)
Trunk fat mass	0.16 (0.10–0.22)	0.20 (0.15–0.25)	0.18 (0.10–0.26)
Model 3
TBS	0.16 (0.08–0.24)	0.31 (0.19–0.42)	0.67 (0.50–0.85)
Trunk lean mass	0.22 (0.17–0.28)	0.16 (0.11–0.20)	0.05 (–0.02 to 0.12)

Values are regression coefficients (95% confidence interval). The measure of association was the standardized magnitude of effect; ie, beta coefficient from regression models using standardized variables for independent and dependent variables. All regression models were adjusted for age and clinical site. TBS= trabecular bone score; LS-VBMD=lumbar spine (trabecular) volumetric BMD.