|
Positivity rates and patient characteristics by test ordered.* |
||||
| Positivity |
Fraction of positives which also had INR>1.3 |
Median Age |
% Female |
|
|
|
||||
| Protein S Functional |
17.7% |
21.2% |
46 |
65.7% |
| Protein S Total Ag |
4.8% |
40.5% |
47 |
63.0% |
| Protein S Free Ag |
18.5% |
25.0% |
39 |
67.4% |
| Protein C Functional |
13.7% |
53.8% |
46 |
65.4% |
| Protein C Total Ag |
12.9% |
33.3% |
47 |
62.9% |
| Antithrombin Functional |
7.5% |
N/A |
46 |
65.8% |
| Antithrombin Antigen |
14.3% |
N/A |
46 |
65.3% |
| APC resistance |
17.7% |
N/A |
46 |
65.7% |
| V Leiden mutation |
12.3% |
N/A |
47 |
64.1% |
| Prothrombin G20210A mutation |
4.9% |
N/A |
46 |
64.1% |
|
*Positivity for V Leiden and prothrombin mutations includes both heterozygotes and homozygotes; for the remaining assays it includes all results falling below the lower limit of the reported reference interval. | ||||
Jackson et al. BMC Clinical Pathology 2008 8:3 doi:10.1186/1472-6890-8-3 |
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