provide a script regarding the results:2 2 factorial design and randomized trial with two restricted diets 3.2.1. IBSD symptom severity scale The results of IBSDSSS were consistent for both IntentionToTreat and PerProtocol analysis. IBSDSSS reduction was significant among groups (p < .001), with the exception of the IgG res diet and CSF + IgG res diet (4.0 0.6 vs. 4.3 0.5, p = .882). IBSDSSS decreased significantly for each group from baseline to the end of the study (p < .001), with mean levels similar to the control group (5.3 0.1 vs. 5.2 0.2). The degree of improvement was control < CSF res diet < IgG res diet < CSF + IgG res diet. TIgG titer grade TIgG titer grade results were consistent for both IntentionToTreat and PerProtocol analysis. At the end of the study, TIgG titer grade significantly decreased from baseline (p < .05) for each group with the exception of the control group. The TIgG titer grade for each of the other three groups (after intervention) was significantly lower than the control group (p < .001). However, there was no significant difference among the three restricted diet groups. Interaction effect of the CSF