Calculations were performed using the SAS software package (SAS™ Version 9.1., SAS Institute Inc., Cary, USA).
Statistical path analysis was performed using the sas procedure proc tcalis (SAS Institute, Inc., Cary, North Carolina).
The statistical analyses were done using the SAS-Enterprise and SAS-JMP software.
The statistical analyses were performed using the SAS-program (SAS Inst. Inc., Cary, NC).
Data was analysed using the SAS-8.2 statistical software package (SAS Institute, Inc., Cary, NC, USA).
Data were handled and analyzed using the SAS-program (ver. 9.2, SAS Inst. Inc., Cary, NC, USA).
For conversion, we used the SAS code "Sf6d_sf36v1_UK_mod.sas", obtained from the University of Sheffield [ 14].
All parametric analyses were undertaken using the general linear model procedure within the SAS software package (SAS-Institute-Inc. 2008).
Significant effects of stress on gene expression were detected using the general linear models procedure using PC-SAS (Version 9.1).
Repeated measures analysis of variance of results was carried out using the General Linear Model Procedure (SAS/STAT version 6.12, SAS Institute, Cary, NC) to analyse differences in fecal SCFA with diet and time as variables in the model.
The categorical assessment of CSAD and ASAD was conducted using the SCI-SAS [ 17].
