Table 4.

Hamilton Depression Ordinal Scores Proportional and Non-Proportional Odds 2-level Multilevel Models Parameter Estimates (standard errors)

parameter	Proportional Odds	Non-Proportional Odds
		1 vs 2,3	1,2 vs 3
threshold γ1	−7.269** (1.157)	−8.360 ** (1.520)
threshold γ 2	−2.431** (0.723)		−2.423 ** (0.769)
Week β1	−1.375** (0.304)	−1.965 ** (0.480)	−1.218 ** (0.302)
DMI2 β 2	−1.706* (0.670)	−1.607 (0.898)	−1.958 ** (0.744)
Intercept variance ${\sigma }_{{\upsilon }_0}^2$	8.348 (4.593)	10.853 (5.781)
Week variance ${\sigma }_{{\upsilon }_1}^2$	1.186 (0.780)	0.979 (0.732)
Intercept, Week covariance συ01	−0.581 (1.205)	−1.212 (1.494)
−2 log L	377.52	374.34

^**p < 0. 01

^*p < 0.05