Table 5.
Risk factors associated to Legionella isolation in multivariate logistic regression analysis
| Risk factors | Parameters | OR | 95% CI | p-value |
|---|---|---|---|---|
|
Water temperature°C |
≥20°C - ≤45°C |
11.96 |
1.28 - 111.48 |
0.0293 |
| |
<20°C or > 45°C |
|||
|
Residual free chlorine concentration mg/L |
< 0.5 |
12.97 |
1.37 - 123.17 |
0.0256 |
| |
≥ 0.5 |
|||
|
Potability of water according to regulation |
Not potable water |
3.57 |
0.77 - 16.65 |
0.1052 |
| |
Potable water |
|||
|
No continuous vs. continuous hyperchlorination |
No continuous hyperchlorination |
10.30 |
1.06 - 100.05 |
0.0444 |
| Continuous hyperchlorination |