| Value | Category | Cases | |
|---|---|---|---|
| 0 | Absent | 16 |
26.7%
|
| 1 | Slight and infrequently present | 3 |
5%
|
| 2 | Mild in amplitude and persistent; or moderate in amplitude, but only intermittently present | 11 |
18.3%
|
| 3 | Moderate in amplitude and present most of the time | 19 |
31.7%
|
| 4 | Marked in amplitude and present most of the time | 6 |
10%
|
| 8 | Untestable | 5 |
8.3%
|