Table 2.

Results of sub-analyses

	Outcome	Trial, n	RD, n	Control, n	Mean Difference [95% CI]	Heterogeneity (%)	Test for the overall effect (P value)
Excluding patients with type 2 diabetes	BMI (kg/m2)	2	140	80	−0.38 [−0.60, −0.15]	92	0.001
	BW (kg)	2	140	80	−0.97 [−1.61,-0.33]	41	0.003
Including subjects with a BMI > 25	BMI (kg/m2)	1	30	25	−0.50 [−2.93,1.93]	N. A.	0.69
	BW (kg)	1	30	25	−1.50 [−5.95, 2.95]	N. A.	0.51
Excluding the RCT with the largest sample size (Li 2010)	BMI (kg/m2)	2	110	45	−0.30 [−0.33, −0.27]	0	<0.001
	BW (kg)	2	110	45	−0.80 [−0.92, −0.68]	0	<0.001
Sensitivity analysis using the fixed-effect model	BMI (kg/m2)	3	170	105	−0.31 [−0.33, −0.28]	78	<0.001
	BW (kg)	3	170	105	−0.81 [−0.93, −0.69]	0	<0.001

RD resistant dextrin, RCT randomized controlled trial, BMI body mass index, BW body weight, N. A. not applicable