| |
Number ill
|
%
|
AOR2(95% CI)
|
AOR-trend3(95% CI)
|
|---|
|
F+ Coliphage Spot Assay
1
|
|
Non-swimmer
|
87
|
4.90
|
ref
| |
|
0.1, 0.7
|
39
|
6.74
|
1.52(0.98-2.36)
| |
|
0.7, 24
|
64
|
8.47
|
1.699(1.12-2.57)
|
1.15(0.69-1.92)
|
|
F+ RNA Coliphage CLAT Assay
|
|
Non-swimmer
|
87
|
4.90
|
ref
| |
|
Absent4
|
39
|
6.69
|
1.18(0.74-1.88)
| |
|
Present4
|
64
|
8.51
|
1.8(1.22-2.66)
|
1.55(0.9-2.66)
|
|
F+ DNA Coliphage CLAT Assay
|
|
Non-swimmer
|
87
|
4.90
|
ref
| |
|
Absent4
|
23
|
6.05
|
1.11(0.64-1.93)
| |
|
Present4
|
80
|
8.38
|
1.69(1.16-2.47)
|
1.61(0.86-3)
|
- 1: Daily Geometric Mean, Plaque forming units per 100 ml estimated by Most Probable Number (MPN) Method
- 2: Adjusted Odds Ratio comparing exposed swimmers to non-swimming reference group
- 3: Adjusted Odds Ratio for a 1-log increase in coliphage on a continuous scale among swimmers
- 4: Swimmers exposed on days when coliphage absent or present by the CLAT assay
