use "D:\S2_Dataset.DTA.dta"
graph box Followup_CD4CountAdult if CD4_date_gp <96, over(CD4_date_gp) ytitle(CD4 Count) title(Median CD4 Count by Follow up Time)
tabulate Age FollowupCD4, chi2 row
tabulate Gender FollowupCD4, chi2 row
tabulate Stage FollowupCD4, chi2 row
tabulate CD4 FollowupCD4, chi2 row