Table 3.

Intercept and Slope of Each Class

Classes	Intercept	P	Slope	P
Class 1 (health low-level group)	2.417	<0.001	−0.075	<0.001
Class 2 (health risk group)	1.872	<0.001	−0.135	<0.001
Class 3 (good health group)	1.175	<0.001	−0.077	<0.001