All samples n = 271 | Lower group (APTT < Anti-Xa activity) n = 44 | Concordant group (APTT = Anti-Xa activity) n = 121 | Upper group (APTT > Anti-Xa activity) n = 106 | P value | |
---|---|---|---|---|---|
Heparin dosage (units/h) | 600 (400–800) | 800 (600–1000)b | 624 (500–800)b | 438 (400–600)a,c | < 0.001 |
White blood cell counts, 103/mm3 | 10.4 (7.85–13.5) | 10.0 (7.6–12.6)b | 10.1 (7.7–13.2) | 11.2 (8.2–14.5)c | 0.331 |
Hemoglobin, g/dL | 9.7 (8.9–11.3) | 10.4 (9.3–12.5) | 9.7 (8.6–11.6) | 9.5 (8.8–10.3) | 0.007 |
Platelet counts, 103/mm3 | 149 (75–250) | 210 (108–273)b | 179 (102–308)b | 79 (50–188)a,c | < 0.001 |
BUN, mg/dL | 35 (25–49) | 29 (20–42) | 32 (25–50) | 38 (27–51) | 0.620 |
Creatinine, mg/dL | 1.11 (0.73–2.19) | 0.96 (0.67–1.57) | 1.145 (0.73–2.41) | 1.19 (0.75–2.19) | 0.276 |
PT-INR | 1.14 (1.08–1.26) | 1.14 (1.08–1.27) | 1.11 (1.05–1.21)b | 1.19 (1.11–1.36)a | < 0.001 |
APTT, s | 45.1 (37.5–58.8) | 50.7 (38.1–60.3)a,b | 37.8 (33.8–45.1)b,c | 52.3 (45.1–71.0)a,c | < 0.001 |
Antithrombin, % | 73 (63–88) | 88 (75–96)b | 76.5 (69–92)b | 68 (54–76)a,c | < 0.001 |
Fibrinogen, mg/dL | 419 (304–537) | 439 (404–524)b | 475 (385–579)b | 347 (250–427)a,c | < 0.001 |
FDP, μg/mL | 12.65 (7.4–27.7) | 12.0 (8.2–19.6) | 14.3 (6.2–34.4) | 11.8 (7.9–21.5) | 0.835 |
d-dimer, μg/mL | 7.19 (3.9–15.035) | 6.49 (3.55–10.25) | 8.08 (3.96–19.52) | 7.11 (3.94–12.92) | 0.547 |
Coagulation factor activity, % | |||||
Factor II | 82 (67–95) | 95 (84–105)a,b | 88 (76–97)b | 65 (51–78)a,c | < 0.001 |
Factor V | 96 (75–121) | 102 (91–130)b | 105 (91–133)b | 78 (60–100)a,c | < 0.001 |
Factor VII | 69 (50–89) | 72 (57–90)b | 77 (61–95)b | 57 (41–84)a,c | < 0.001 |
Factor VIII | 144 (107–186) | 178 (131–201)b | 158 (123–201)b | 126 (93–165)a,c | < 0.001 |
Factor VIII activity > 200%, n (%) | 106 (39%) | 16 (37%) | 32 (26%) | 58 (21%) | < 0.001 |
Factor IX | 97 (76–112) | 104 (94–116)b | 108 (94–124)# | 75 (58–96)a,c | < 0.001 |
Factor X | 75 (62–88) | 77 (68–90)# | 80 (72–95)# | 66 (55–77)a,c | < 0.001 |
Factor XI | 72 (55–88) | 86 (79–106)# | 79 (67–96) | 53 (40–64)a,c | < 0.001 |
Factor XII | 40 (29–56) | 52 (32–64)# | 50 (35–65)# | 32 (23–41)a,c | < 0.001 |
Anti-Xa activity (IU/mL) | 0.23 (0.12–0.41) | 0.63 (0.47–0.73)a,b | 0.23 (0.11–0.34)c | 0.18 (0.11–0.28)c | < 0.001 |