| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. cPW treatment | 1844 |
37.2%
|
| 2 | 2. cPW control | 1811 |
36.5%
|
| 3 | 3. ePW treatment | 713 |
14.4%
|
| 4 | 4. ePW control | 587 |
11.8%
|