Spss statistical package version 12

In this non-inferiority study, we postulated that serum PAB levels in the egg white protein group would be non-inferior to the casein protein group by a presumptive non-inferior margin of 5 mg%. We calculated that 17 patients per additive protein group would provide a minimum power of 80 % to determine the non-inferior margin of a 5 mg% using a one-sided α of 0.05. Continuous data were expressed as mean and standard error of the mean (SEM). Categorical data were expressed as number and percentage. An independent t test was used to compare continuous demographic variables for each treatment group. Fisher’s exact test was used to compare category demographic variables for each treatment group. Repeated-measures ANOVA was used to determine the group effects displayed by the serum PAB and CRP levels. A post hoc analysis of the linear regression model was performed to determine the changes in PAB reflective of adequate caloric and protein support or changes in inflammatory responses. The results were considered statistically significant when the p value was less than 0.05. Statistical analysis was computed by SPSS® statistical package version 12.

All quantitative data are presented as the mean ± standard deviation (SD) of at least three independent experiments. A two-group comparison was conducted using the two-sided, two-sample Student’s t-test. Simultaneous comparison of more than two groups was conducted using a one-way analysis of variance (ANOVA) followed by Tukey’s post hoc tests. The SPSS statistical package version 12 (SPSS Inc., Chicago, IL) was used for all statistical analyses. Statistically significant differences were considered when P-values were less than 0.05.