*2.5. Statistical Analysis*

Continuous variables were summarized by means and standard deviations or medians and inter-quartile ranges (25th–75th percentile) as appropriate. Continuous variables were checked visually for any departure from normality using histograms and quantile-quantile plots (Q–Q plots). All continuous data were reasonably normally distributed and therefore no transformations were applied. Categorical variables from the KAP questionnaire were reported as the percentage of responses per category. The Student's *t*-test was used to compare the mean di fference in sodium and potassium excretion in urine against the recommended dietary allowance. Measures of association for categorical variables were evaluated using a chi-square or Fisher's exact test as appropriate. All analyses were conducted using the Statistical Package for the Social Sciences (SPSS) version 21. All statistical significance was determined at 5%.
