Table 4.

Multiple regression analyses for the curve parameters describing the relationship between HR and $\dot{\text{V}}$O₂, HR = a + b·$\dot{\text{V}}$O₂.

	Bivariate		Multivariate
	B	p	B	Adjusted B	95% CI	p
Curve Parameter a
Case/Control	4.23	0.051	4.87	0.19	0.37, 9.37	0.034
Sex	3.72	0.087	1.68	0.07	−3.18, 6.53	0.495
FEV1	−2.08	0.027	1.48	0.13	−4.01, 6.98	0.597
Height	−0.18	0.005	−0.35	−0.45	−0.78, 0.06	0.113
Body mass	−0.09	0.027	0.03	0.04	−0.21, 0.28	0.803
Cohort	4.17	0.049	−1.82	−0.07	−11.41, 7.76	0.708
Curve Parameter b
Case/Control	−10.5	0.013	−6.24	−0.12	−10.01, −2.47	0.001
Sex	18.2	0.000	6.88	0.14	2.81, 10.94	0.001
FEV1	−19.7	0.000	−0.12	−0.01	−4.73, 4.49	0.959
Height	−1.4	0.000	−0.42	−0.28	−0.79, −0.06	0.024
Body mass	−1.2	0.000	−0.38	−0.28	−0.59, −0.18	0.000
Cohort	43.0	0.000	17.23	0.34	9.2, 25.3	0.000

FEV₁ forced expired volume in 1 s, HR heart rate, $\dot{\text{V}}$O₂ oxygen uptake.