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).