Chapter 6: Single group studies using STATA

Figure 6.1 Output for calculating a prevalence and 95% confidence interval

Figure 6.1 Code

Code for figure 6.1

use "C:\Projects\Books\Presenting\data\stataData\chlamydia.dta", clear
ci chlamydia, binomial

Figure 6.2 Calculating sensitivity and specificity

Figure 6.2 Code

Code for figure 6.2

Click here to show code as text

use "C:\Projects\Books\Presenting\data\stataData\screening.dta", clear
tabulate mdi2 parca
cii 16 13 // calculate confidence intervals (immediate) for binomial data
cii 48 39