Table 4.

Univariate linear regression models for activity outcomes.

Predictorsa	Lab-based outcomes		Accelerometer-based outcomes
	Gait speed		Gait speed		Low activity
	Coefficient (95% CI)	P value	Coefficient (95% CI)	P value	Coefficient (95% CI)	P value
HIV status	−0.01 (−0.11 to 0.10)	.91	−0.15 (−0.34 to 0.03)	.10	0.16 (0.02 to 0.29)	.02
Body mass index	−0.32 (−0.63 to −0.02)	.04	−0.44 (−0.98 to 0.097)	.11	−0.06 (−0.50 to 0.38)	.78
Total testosterone	0.06 (−0.05 to 0.18)	.26	0.21 (0.02 to 0.40)	.04	−0.02 (−0.19 to 0.14)	.77
Free testosterone	0.05 (−0.06 to 0.17)	.34	0.21 (0.01 to 0.40)	.04	−0.05 (−0.22 to 0.13)	.60
CD4/CD8 ratio	0.01 (−0.06 to 0.08)	.81	0.09 (−0.03 to 0.20)	.14	−0.10 (−0.18 to −0.02)	.02

^aAll variables were natural log-transformed before analysis.