Table 3 -. Content validity index to patients’ question comprehension - total and per question data.
| CVI* | n | % | 95%CI | |
|---|---|---|---|---|
| Inferior (%) | Superior (%) | |||
| Q1 | 82 | 100.0 | - | - |
| Q2 | 81 | 98.8 | 94.4 | 99.9 |
| Q3 | 72 | 87.8 | 79.4 | 93.6 |
| Q4 | 82 | 100.0 | - | - |
| Q5 | 82 | 100.0 | - | - |
| Q6 | 82 | 100.0 | - | - |
| Q7 | 71 | 86.6 | 78.0 | 92.7 |
| Q8 | 81 | 98.8 | 94.4 | 99.9 |
| IVC† | 633 | 96.5 | 95.3 | 97.8 |
*Content validity index per question; † Global content validity index. CVI: Content validity index; n: number of patients; 95%CI: 95% confidence interval; Q1-Q8: question 1 to question 8, respectively.