Spss statistics for windows version 14

The database containing patient information was entered in Microsoft Excel (Microsoft Corporation, Redmond, WA, USA) and was subsequently exported to the SPSS Statistics for Windows, version 14.0 (SPSS Inc., Chicago, IL, USA). The data were separated by category, according to the clinical classification of the patients. These data distributed according to proportions was compared using the chi-squared test (Fisher or Yates, depending on the need). Since the present study involves unequal variables, the Tamhane T2 test was performed to compare the mean of the multiple groups. P-values < 0.05 were considered significant.

The results from the present study were statistically analyzed using one-way analysis of variance, with Bonferroni posttest correction used for multigroup comparisons. A p value of <0.05 was considered significant. The results are presented as means ± standard deviations (S.D.) and were analyzed using SPSS Statistics for Windows, version 14.0 (SPSS Inc., Chicago, IL, USA).

Experimental data are presented as means ± standard deviations. Statistical analyses were performed using a one-way analysis of variance with the Tukey post-test. A p-value of 0.05 was considered significant. All statistical operations were performed using SPSS Statistics for Windows, version 14.0 (SPSS, Inc., Chicago, IL, USA).