. Author manuscript; available in PMC: 2010 Jul 1.

Published in final edited form as: Am J Prev Med. 2009 Jul;37(1 Suppl):S97–104. doi: 10.1016/j.amepre.2009.04.011

Table 2.

Estimated model for left ventricular mass on gender and age, Project HeartBeat!, 1991–1995

Parameter	Estimate	SE	p-value
Fixed
Constant	103.0	1.367	0.000
Gender (0, male; 1, female)	−11.26	1.95	0.000
Age (years)	6.706	0.3347	0.000
Age²	0.0784	0.07887	0.320
Gender*age	−2.426	0.474	0.000
Gender*age²	−0.630	0.1119	0.000
Between-subjects variance/covariance
Constant	495.8	31.41	0.000
Age/constant	53.38	5.614	0.000
Age	6.001	1.955	0.002
Within-subjects variance
Error	292.8	6.977	0.000

Note: Continuous predictive variables were centered before modeling.