Table 2. Factors associated with thoracic vertebral bone attenuation, multivariable analysis.

	Beta Coefficient (95% confidence interval)	p-Value
Attenuation Area %*	-8.0 (-15.4, -0.9)	0.034
Age per year	-1.3 (-2.1, -0.50)	0.002
Sex (male)	-4.8 (-20.4 10.7)	0.54
Pack Years	-0.15 (-0.56, 0.25)	0.46
Anti-retroviral therapy (yes)	-2.5 (-22.7, 17.7)	0.81
Oral steroids**	13.4 (-15.5, 42.3)	0.36

*Log transformed values used

**Oral steroids = any use in the past 12 months