Statistical analysis plan Analysis of data will be performed using Statistical Package for Scientific Studies 17 for Windows. Description of qualitative variables will be in the form of numbers (No.) and percent (%). Description of quantitative variables will be in the form of mean, standard deviation (SD). Questionnaire results will be compared against different baseline characteristics of the studied group. According to the type and distribution of data, suitable tests for inferential statistics will be used. Significance of the results will be presented in the form of P-value.