Statistical Analysis
Categorical data are presented as numbers and percentages. The
Shapiro-Wilk test was used to determine whether the distributions of
continuous variables were normal. While normal distributed data are
presented as mean and standard deviation, non-normally distributed data
are given as median and 25th-75thpercentile. Independent T-test was used to compare two independent
normal distributed data, while Mann-Whitney U test was used for
non-normally distributed data. The frequencies of categorical variables
were compared using Pearson Chi-Square, Continuity Correctionor Fisher’s
exact test, when appropriate. The relation of intraoperative and
postoperative findings with CCI was evaluated using Spearmen correlation
analysis. A p value of <0.05 was considered statistically
significant. All data were analyzed using the Statistical Package for
Social Sciences, version 20.0 (SPSS, Chicago, Ill) software program.