Table 2.

Parameter Estimates for Random-Effects Models on Outcomes

Variable	β (SE)
Variable	CY-BOCS	CGI-Severity	CY-BOCS Compulsions	CY-BOCS Obsessions	CDRS	MASC	COIS-P
Fixed effects
Intercept	23.83 (0.93)^a	3.50 (0.13)^a	12.59 (0.49)^a	11.88 (0.51)^a	44.29 (1.69)^a	40.97 (3.64)^a	16.15 (1.61)^a
Time	−2.03 (0.23)^a	−0.23 (0.03)^a	−1.08 (0.13)^a	−1.00 (0.13)^a	−1.15 (0.36)^b	−1.63 (0.56)^b	−1.43 (0.24)^a
Site	−1.80 (1.31)	−0.14 (0.19)	−1.08 (0.69)	−1.37 (0.71)	3.72 (2.47)	−2.88 (5.13)	−2.54 (2.28)
Group	1.32 (1.31)	0.25 (0.19)	0.59 (0.69)	0.27 (0.72)	−2.09 (2.39)	7.27 (5.12)	−2.02 (2.27)
Group × site	0.13 (1.86)	−0.04 (0.27)	0.03 (0.97)	0.55 (1.00)	5.34 (3.59)	1.13 (7.33)	6.97 (3.24)^c
Site × time	0.29 (0.33)	−0.01 (0.04)	0.15 (0.17)	0.20 (0.18)	−0.33 (0.53)	0.35 (0.80)	0.56 (0.34)
Group × time	−0.28 (0.33)	−0.05 (0.04)	−0.14 (0.18)	−0.14 (0.18)	1.02 (0.50)^c	0.23 (0.80)	0.21 (0.34)
Group × site × time	0.19 (0.47)	0.03 (0.06)	0.15 (0.24)	0.03 (0.26)	0.13 (0.78)	−0.35 (1.15)	−0.65 (0.49)
Random effects
Residual	10.70 (0.74)^a	0.25 (0.02)^a	3.49 (0.25)^a	3.69 (0.26)^a	45.38 (5.95)^a	54.89 (7.28)^a	21.42 (2.77)^a
Intercept	25.16 (3.68)^a	0.50 (0.08)^a	6.18 (0.98)^a	6.62 (1.04)^a	67.27 (13.78)^a	416.77 (55.91)^a	74.65 (11.40)^a
Slope	1.23 (0.24)^b	0.02 (0.00)^a	0.29 (0.07)^a	0.33 (0.07)^a	0.81 (0.75)	6.24 (1.47)^a	0.27 (0.33)
Correlation	−0.25 (0.11)^a	−0.09 (0.13)	−0.21 (0.12)	−0.23 (0.12)	−0.16 (0.27)	−0.41 (0.10)^a	−0.11 (0.27)

Abbreviations: CDRS, Children’s Depression Rating Scale; CGI-Severity, Clinical Global Impressions-Severity; COIS-P, Children’s Obsessive-Compulsive Impact Scale-Parent Version; CY-BOCS, Children’s Yale-Brown Obsessive Compulsive Scale; MASC, Multi dimensional Anxiety Scale for Children.

P <.001.

P < .01.

P < .05.