| Value | Category | Cases | |
|---|---|---|---|
| 1 | Low risk: E. coli < 1 cfu/100 mL | 894 |
19.8%
|
| 2 | Moderate risk: E. coli 1-10 cfu/100 mL | 943 |
20.8%
|
| 3 | High risk: E. coli 11-100 cfu/100 mL | 1101 |
24.3%
|
| 4 | Very high risk: E. coli >100 cfu/100 mL | 1588 |
35.1%
|
| Sysmiss | 162 |