Table 2 Number of cfu/mL retrieved from fittings no. 1-8
Weeks | no. 1 | no. 2 | no. 3 | no. 4 | no. 5 | no. 6 | no. 7 | no. 8 |
|---|---|---|---|---|---|---|---|---|
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
1 | 0 | - | 0 | 0 | 0 | 0 | 0 | - |
2 | > 1,000 | - | 0 | 2 | 67 | 15 | 0 | - |
3 | > 1,000 | - | 0 | 0 | 0 | 0 | 124 | - |
4 | > 1,000 | > 1,000 | 0 | 0 | 0 | 0 | 0 | 0 |
5 | > 1,000 | - | 150 | >1,000 | 46 | 0 | 100 | - |
6 | > 1,000 | - | 62 | 400 | 123 | 14 | 300 | - |
7 | > 1,000 | - | 1 | 1 | 10 | 1 | 10 | - |
8 | > 1,000 | > 1,000 | 162 | 200 | 152 | 22 | 500 | - |
9 | > 1,000 | - | 69 | 226 | 30 | 0 | 167 | 4 |
10 | > 1,000 | - | 4 | 17 | 1 | 1 | 170 | 0 |
11 | > 1,000 | - | 317 | 67 | 147 | 6 | 286 | 5 |
12 | > 1,000 | > 1,000 | 17 | 21 | 14 | 0 | 252 | 0 |
13 | > 1,000 | - | 89 | 139 | 30 | 0 | 192 | 1 |
14 | > 1,000 | - | 87 | 46 | 402 | 1 | 90 | 0 |
15 | > 1,000 | - | 95 | 15 | 10 | 16 | 226 | 0 |
16 | > 1,000 | > 1,000 | 20 | 1 | 1 | 1 | 55 | 1 |
17 | > 1,000 | - | 200 | 259 | 321 | 11 | 500 | 3 |
18 | > 1,000 | - | 180 | 117 | 237 | 26 | 118 | 2 |
19 | > 1,000 | - | 290 | 109 | 150 | 40 | 250 | 0 |
20 | > 1,000 | - | 17 | 0 | 0 | 0 | 0 | - |
Geometric mean | - | - | 17.8 | 15.4 | 14.2 | 2.2 | 39.7 | 1.0 |
Scatter factor | - | - | 11.9 | 14.6 | 12.2 | 5.4 | 14.0 | 2.4 |