Table 2 Moderating effects of randomised group and eating behaviour traits on percent weight change at end of intervention.

Exposure	N sample [N studies]	Intervention effect on percentage weight change		Interaction of categorised EBTs and randomised group on percentage weight change		Interaction of continuous EBTs and randomised group on percentage weight change
Exposure	N sample [N studies]	MD (95% CI)^a	Tau²	MD (95% CI)^{b, c}	Tau²	MD (95% CI)^b	Tau²
Emotional eating	1893 [13]					0.007 (−0.02, 0.04)	0.00
Low	809	−0.605 (−1.72, 0.53)	0.05	0.309 (−1.38, 2.06)	0.00
Medium	565	−1.694 (−2.92, −0.65)	1.08	ref
High	519	0.055 (−0.86, 1.48)	1.84	1.191 (−0.38, 3.21)	1.30
External eating	1309 [9]					0.041 (−0.004, 0.09)	0.00
Low	578	−1.271 (−2.81, 0.26)	0.00	−0.418 (−2.71, 1.79)	1.42
Medium	379	−0.899 (−2.72, 0.69)	1.88	ref
High	352	1.213 (−0.4, 3.05)	1.21	1.577 (−0.91, 4.2)	0.00
Internal disinhibition	1152 [7]					0.008 (−0.04, 0.06)	0.00
Low	413	−0.777 (−2.56, 1.13)	0.72	0.648 (−2.07, 3.21)	1.94
Medium	397	−1.459 (−3.09, 0.41)	4.42	ref
High	342	0.506 (−1.23, 2.46)	3.10	1.802 (−1.04, 4.46)	1.31
Restraint	1786 [13]					−0.008 (−0.04, 0.03)	0.00
Low	745	−0.891 (−1.9, 0.12)	0.00	0.456 (−1.11, 2.03)	0.00
Medium	472	−1.398 (−2.68, −0.11)	0.00	ref
High	569	−0.932 (−1.81, 0.23)	0.92	0.373 (−1.27, 2.02)	0.00
Uncontrolled eating	1328 [8]					0.004 (−0.03, 0.04)	0.00
Low	522	−1.423 (−2.63, −0.22)	0.00	−0.587 (−2.36, 1.19)	0.00
Medium	386	−0.55 (−1.94, 0.84)	0.00	ref
High	420	−1.538 (−2.57, 0.06)	1.85	−0.405 (−2.24, 1.49)	0.32

Rank deficient coefficients were removed from the model by the lmer function (e.g. if one study only included females and no males).
MD mean difference, CI confidence interval.
^aIntervention effects (ACT vs. control) in strata of low, medium, and high levels of EBTs on percentage weight change were estimated while stratifying all other parameters by trial.
^bInteractions between randomised group (ACT vs. control) and EBTs on percentage weight change were estimated while stratifying all other parameters by trial.
^cReference group was medium levels of each EBT, respectively.

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