2.3 Statistical analysis
Descriptive statistics are performed in the form of mean and standard
deviations for continuous variables and frequency and percentages for
categorical variables. Chi-square tests are performed to see the
association between RML vs Non-RML group and other independent
categorical variables whereas, student t-tests (unpaired) are performed
to see significant mean differences between RML vs Non-RML group with
continuous variables. Levene’s Test for Equality of Variances has been
taken into consideration for p-value. Correlation is performed between
Creatine kinase 2 and creatinine µmol/liter. P-value 0.05 (two-tailed)
is considered for statistically significant level18.
SPSS 22.0 statistical software is used for the analysis. Clinical and
laboratory data were entered into a database (Microsoft Excel 97,
Redmond, WA, USA) and statistical analyses were performed (SPSS Inc.,
Version 16. Chicago IL, USA).