Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Comparison of mucosal effects (grade of mucosal injury) at the time of removal and 18 h after the removal of button battery with and without application of acetic acid
| Group C (Without acetic acid) | Grade of mucosal injury | Fisher's exact test | |||
|---|---|---|---|---|---|
| I | II | III | IV | ||
| At the time of removal | 2 | 5 | 3 | 0 | p-value 0.026 |
| 18 h after removal | 2 | 0 | 8 | 0 | |
| Group D (With acetic acid) | Grade of mucosal injury | Fisher's exact test | |||
|---|---|---|---|---|---|
| I | II | III | IV | ||
| At the time of removal | 4 | 4 | 2 | 0 | p-value 1.00 |
| 18 h after removal | 4 | 4 | 2 | 0 | |
