|
Qualitative and quantitative analysis |
|||
| Parameter |
Qualitative |
Quantitative |
|
|
|
|||
| 105 cfu/ml |
106 cfu/ml |
||
|
|
|||
| Sensitivity |
81% |
65% |
26% |
| Specificity |
23% |
48% |
78% |
| Positive predictive value |
18% |
21% |
20% |
| Negative predictive value |
86% |
87% |
83% |
| Likelihood ratio of positive test |
1.05 |
1.25 |
1.18 |
| Likelihood ratio of negative test |
0.83 |
0.73 |
0.95 |
|
cfu, colony-forming units. | |||
Camargo et al. Critical Care 2004 8:R422 doi:10.1186/cc2965 |
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