TABLE 1.

Hierarchical Regression Results for Percentage Early Weight Change Predicting Post-FBT Reductions in BMI z Score

Variables	B	SE B	β	R2	ΔR2
Session 4 percentage weight change
Step 1: child demographics				.20	.20b
Child gender	.01	.01	.04
Child race/ethnicity	−.01	.01	−.05
Child baseline age	−.01	.01	−.18a
Child baseline BMI z score	−.14	.02	−.44b
Step 2: Early weight change				.33	.13b
Session 4 weight change	1.90	.36	.36b
Session 6 percentage weight change
Step 1: child demographics				.20	.20b
Child gender	.01	.01	.07
Child race/ethnicity	−.01	.01	−.06
Child baseline age	−.01	.01	−.20a
Child baseline BMI z score	−.14	.02	−.46b
Step 2: early weight change				.42	.22b
Session 6 weight change	2.15	.29	.48b
Session 8 percentage weight change
Step 1: child demographics				.20	.20b
Child gender	.02	.01	.07
Child race/ethnicity	−.01	.01	−.04
Child baseline age	−.01	.00	−.20a
Child baseline BMI z score	−.13	.02	−.44b
Step 2: early weight change				.52	.32b
Session 8 weight change	2.02	.21	.57b

^aP < .01.

^bP < .001.