Table 4.

Multiple linear regression results for alveolar volume (VA) (5 s breath-hold)

N = 118	Unstandardized coefficients		Standardized coefficients		95% Confidence interval for beta		Collinearity statistics
	Beta	SE	Beta	t-statistic	Lower bound	Upper bound	Tolerance	VIF
Constant	− 6.16	1.41		− 4.36*	− 9.0	− 3.4
Height (cm)	0.065	0.01	0.52	7.59*	0.05	0.08	0.55	1.83
Sex (0 = females; 1 = males)	0.835	0.17	0.34	5.02*	0.5	1.2	0.56	1.79
Race (0 = black; 1 = white	0.64	0.13	0.26	5.08*	0.39	0.90	0.96	1.04

	Sum of squares	Df	Mean square	F	Sig.
ANOVA results
Regression	129	4	43	95	0.000
Residual	52	113	0.454		0.000
Total	181	117

^*t-statistic was statistically significant (p < 0.01); SE = standard error; Durbin–Watson Statistic = 2.38; Overall R² = 0.71; Standard error of the estimate (SEE) = 0.67 L. Height, Sex, and Race accounted for approximately 60%, 6%, and 5% of the total variance in the model. ANOVA results were rounded to the nearest whole number except for Residual Mean Square error, which was rounded to two decimal places