American Association for Cancer Research

Table 2.

Plasma concentrations and mean differences [mean (SE)] of plasma IGF-I by diet feeding order

Analyte	Period	Diet Feeding Order						P for interaction*
Analyte	Period			Diet	Control → Experimental (n = 19)	Diet	Experimental → Control (n = 23)	P for interaction*
IGF-I (ng/mL)	1	Control	214.9 (14.5)	Experimental	211.3 (8.5)^†
		2	Experimental	215.9 (14.6)	Control	193.6 (7.3)^‡
			Difference^§	1.05 (20.1)	Difference§	18.1 (5.2)
			P	0.89	P	0.0005	0.07

Analyte	Period	Diet Feeding Order						P for interaction*
Analyte	Period			Diet	Control → Experimental (n = 19)	Diet	Experimental → Control (n = 23)	P for interaction*
IGF-I (ng/mL)	1	Control	214.9 (14.5)	Experimental	211.3 (8.5)^†
		2	Experimental	215.9 (14.6)	Control	193.6 (7.3)^‡
			Difference^§	1.05 (20.1)	Difference§	18.1 (5.2)
			P	0.89	P	0.0005	0.07

Interaction between diet and diet feeding order.

Period 1, mean (SE) difference between experimental and control for IGF-I = −3.63 (15.8); Wilcoxon rank sum P = 0.89.

Period 2, mean (SE) difference between experimental and control for IGF-I = 22.5 (14.9); Wilcoxon rank sum P = 0.29.

Difference between experimental and control calculated using generalized estimating equations.