Frequency of abnormal results across groups
| . | No. (%) . | ||
|---|---|---|---|
| PVI . | AIS . | Control . | |
| PT | 1 (2) | 4 (5) | 1 (1) |
| INR | 0 | 1 (1) | 0 |
| PTT | 4 (8) | 6 (8) | 3 (4) |
| Fibrinogen | 0 | 1 (1) | 0 |
| Antithrombin | 0 | 1 (1) | 1 (1) |
| Protein C | 5 (10) | 7 (9) | 10 (14) |
| Protein S | 9 (18) | 9 (12) | 10 (14) |
| Protein S free | 9 (17) | 12 (16) | 18 (24) |
| Factor VIII | 4 (8) | 4 (6) | 5 (7) |
| Factor IX | 0 | 0 | 0 |
| Factor XI | 3 (6) | 8 (11) | 12 (16) |
| Lp(a) | 0 | 0 | 0 |
| Anticardiolipin antibody* | 5 (10) | 7 (10) | 2 (3) |
| Lupus inhibitor | 0 | 0 | 1 (1) |
| . | No. (%) . | ||
|---|---|---|---|
| PVI . | AIS . | Control . | |
| PT | 1 (2) | 4 (5) | 1 (1) |
| INR | 0 | 1 (1) | 0 |
| PTT | 4 (8) | 6 (8) | 3 (4) |
| Fibrinogen | 0 | 1 (1) | 0 |
| Antithrombin | 0 | 1 (1) | 1 (1) |
| Protein C | 5 (10) | 7 (9) | 10 (14) |
| Protein S | 9 (18) | 9 (12) | 10 (14) |
| Protein S free | 9 (17) | 12 (16) | 18 (24) |
| Factor VIII | 4 (8) | 4 (6) | 5 (7) |
| Factor IX | 0 | 0 | 0 |
| Factor XI | 3 (6) | 8 (11) | 12 (16) |
| Lp(a) | 0 | 0 | 0 |
| Anticardiolipin antibody* | 5 (10) | 7 (10) | 2 (3) |
| Lupus inhibitor | 0 | 0 | 1 (1) |
Using the established normative values and direction of abnormality favoring thrombophilia, the proportion of participants with abnormal results are shown. No differences were observed between groups, including individual analysis of NAIS and APPIS populations.
INR, international normalized ratio; PT prothrombin time; PTT partial thromboplastin time.
Anticardiolipin results shown are from the original test and were normal on repeat testing in 86%.