Association of VO2peak (ml/kg/min) with performance.

	Six-minute walk, meters						400-meter LDCW, minutes
	Model			Slope (ml/kg/min/m)			Model			Slope (ml/kg/min/min)
Subjects	N	R²	RMSE	β	SE	p*	N	R²	RMSE	β	SE	p*
HIV-infected	45	0.25	5.51	0.047^†	0.013	0.9	43	0.27	5.56	-6.35^†	1.64	0.8
Uninfected	37	0.32	4.56	0.048^†	0.012		35	0.23	4.90	-4.87^†	1.54

* difference in slope between models by the F-statistic
^†p-value <0.01 for linear regression β coefficient
RMSE, root mean squared error

Table 3: Association of VO2peak (ml/kg/min) with performance in the six-minute walk and the 400-meter long-distance corridor walk (LDCW) by linear regression in HIVinfected and uninfected men.

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