Table 4.
Peak heights of CWA-APTT and sTF/FIXa in patients with ITP and patients with other types of thrombocytopenia.
| Age (Years) |
APTT (mm Absorbance) | sTF/FIXa (mm Absorbance) | |||||
|---|---|---|---|---|---|---|---|
| 2nd DP | 1st DP | FF | 2nd DP | 1st DP | FF | ||
| Other(n = 18) | 3.8 (2–4.7) |
679 * (541–821) |
203 ** (177–275) |
214 * (161–259) |
21.4 * (17.7–35.4) |
54.0 *** (40.5–73.7) |
236 ** (165–269) |
| ITP (n = 17) | 3.0 (1.1–4.2) |
1010 * (670–1110) |
337 ** (280–372) |
257 * (239–322) |
37.4 * (29.6–54.6) |
97.3 *** (75.9–121) |
312 ** (281–378) |
Data are expressed as median (25th–75th percentile); CWA, clot waveform analysis; APTT, activated partial thromboplastin time; sTF/FIXa, small amount of tissue factor-induced FIX activation assay; 2nd DP, second derivative peak; 1st DP, first derivative peak; FF, fibrin formation; ITP, idiopathic thrombocytopenic purpura; other, other types thrombocytopenia; *, p < 0.05; **, p < 0.01; ***, p < 0.001 difference between ITP and other types thrombocytopenia.