This is a tutorial to learn some tools and tricks in analysing follow-up data using two by two contingency tables. This kind of data are typically collected from a cohort study or randomised controlled trials.

I used 2014 Myanmar Census data to describe the distribution of characteristics of over 11 million households in the country. Data were aggreagated using {dplyr} and {gtsummary}. Outputs of {gtsummary} are displayed directly. Output in dataframes are rendered as html widgets using {DT}.