. Author manuscript; available in PMC: 2013 Mar 21.

Published in final edited form as: J Appl Gerontol. 2011 Jun 6;32(1):51–75. doi: 10.1177/0733464811409034

Table 5.

Best additive predictive model for number of chronic conditions

Predictive factors	F-statistic (ndf, ddf)	p-value	Proportion of explained variability
Age group	31.27 (2, 347)	<0.0001	85.11%
Education level	1.64 (3, 347)	0.18	85.11%
Tobacco usage	2.41 (2, 347)	0.09	4.42% (after controlling for demographics)
Alcohol usage	1.23 (2, 347)	0.29	4.42% (after controlling for demographics)
Clubs	3.61 (3, 347)	0.0135	10.47% (after controlling for demographics and tobacco and alcohol usage)
Hours	2.73 (4, 347)	0.029

R²=0.35, MSE = 1.223, F(16, 347) = 11.72, p < 0.0001