2.6. Data analysis
Descriptive analysis was conducted where frequency and percentages were used to present the categorical data. Chi-square test and fisher exact test were be used to investigate the differences of categorical variables between intervention and control group at baseline.The Generalized Estimating Equation (GEE) model using the Statistical Program for the Social Sciences (SPSS) version 27.0 was used for comparing the differences in knowledge and skills between the intervention and control groups across the time points, adjusted with covariates. Variable with p <0.05 was considered statistically significant. Intention-to-treat (ITT) was used in the analysis to deal with the missing data. The last Observation Carried Forward (LOCF) method was used to impute the missing data (