Table 4

Linear regression results predicting weight-for-age and height-for-age Z scores by post-dose lactulose and rhamnose concentrations and their interaction

Outcome variable	Predictor	Coefficient (95% CI)	p Value	R²
Weight-for-age Z score (N=104)	Intercept	−0.5007 (−0.9248 to 0.01766)	0.003	13%
	Post lactulose	−0.0041 (−0.0063 to −0.002)	<0.001
	Post rhamnose	−0.0007 (−0.0033 to 0.0017)	0.536
	Lactulose-rhamnose interaction	0.000007 (0.00000 to 0.00001)	0.013
Height-for-age Z score (N=104)	Intercept	−1.13512 (−1.5629 to −0.7075)	<0.001	10%
	Post lactulose	−0.0046 (−0.0074 to −0.0018)	0.0018
	Post rhamnose	−0.0008 (−0.0041 to 0.0025)	0.630
	Lactulose-rhamnose interaction	0.000007 (−0.00000 to 0.00002)	0.098