Table 1. Estimated Regression Parameters from the Trajectory Modeling in the Montreal Diabetes Health and Well Being Study, 2008-2011.

	Intercept (SE)	Linear term (SE)	Quadratic term (SE)	Cubic term (SE)
Group 1 Persistently poor SRH	25.01 (1.15)	-2.65 (0.64)	-	-
Group 2 progressively increased SRH	27.54 (1.35)	64.56 (5.48)	-35.75 (4.83)	6.18 (1.06)
Group 3 progressively decreased SRH	82.18 (1.54)	-74.07 (7.65)	28.49 (7.12)	-3.75 (1.59)
Group 4 persistently good SRH	83.32 (0.42)	-0.94 (0.23)	-	-