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Table 2
The multivariate linear regression models for predicting cardiorespiratory fitness (VO2max) in men and women
	Reference category	Men			Women
		N = 222; R² = 0.453			N = 181; R² = 0.404
Variable		Regression coefficient β	Standard error	P^a	Regression coefficient β	Standard error	P^a
Constant		84.10	5.08	<0.001	80.41	5.97	<0.001
BMI	1 kg/m² increment	0.09	0.28	0.742	−0.94	0.28	0.001
WC	1 cm increment	−0.36	0.11	0.001	−0.13	0.12	0.29
Age	1 year increment	−0.30	0.05	<0.001	−0.19	0.07	0.006
Smoking	not smoking	1.23	1.19	0.301	0.09	1.50	0.952
Hours of training per week	1 hour/week increment	−2.18	0.91	0.017	−2.10	0.56	<0.001
Weekly caloric expenditure for physical activity	1 kcal/week increment	0.008	0.002	<0.001	0.011	0.002	<0.001

Abbreviations: BMI = Body Mass Index, WC = waist circumference.

p values are for association of the variables with VO₂max.

R²- a measure of goodness-of-fit in linear regression.

The statistical analysis performed: multivariate linear regression models for predicting VO₂max in men and women.

Dagan et al. Nutrition Journal 2013 12:12 doi:10.1186/1475-2891-12-12

Table 2