Supplemental Digital Content
TABLE 2. Panel A and B of this table compare the analysis of coagulation screens in term (A) and preterm (B) infants, which were obtained prior to catheter placement at defined time periods. The data (mean and 2 standard deviations) are presented along with the normal values. The reference data were obtained at various specific time points: ^ d1 # d5, ° d30, * d90 (Andrew et al.); ^ d1, # d3, * 1 month-1year (Monagle et al. using the Stago methodology). Note: values from Andrew et al. validated for 30-36 weeks of gestational age. Abbreviations: d, day; aPTT, activated partial thromboplastin time; AT-III, anti-thrombin III.;
n.a., not applicable.
A.
Coagulation Parameter
Age
d 1-2^ d 3-5# d 6-30° d 31-180*
aPTT (s) Cases
51.9 (30.8–72.9) 41.6 (27.2–56.0) 35.3 (31.7–38.8) -
considered to be abnormal:
n=2 (out of 3)
considered to be abnormal:
n=1 (out of 2)
considered to be abnormal:
n=0 (out of 2) -
Controls
46.1 (29.2–62.9) - - 38.7 (31.3–46.0)
considered to be abnormal:
n=3 (out of 6) - - considered to be abnormal:
n=1 (out of 4)
Andrew et al. 42.9 (31.3–54.5) 42.6 (25.4–59.8) 40.4 (25.6–55.2) 37.1 (24.1–50.1)
Monagle et al. 38.7 (34.3–44.8) 36.3 (29.5–42.2) - 39.3 (35.1–46.3)
Fibrinogen (g/l) Cases
2.23 (1.56–2.89) 2.44 (0.12–4.76) 1.72 (1.32–2.12) -
considered to be abnormal:
n=2 (out of 3)
considered to be abnormal:
n=1 (out of 2)
considered to be abnormal:
n=1 (out of 2) -
Controls
1.78 (0.88–2.67) - - 3.43 (2.37–4.49)
considered to be abnormal:
n=5 (out of 6) - - considered to be abnormal:
n=1 (out of 4)
Andrew et al. 2.83 (1.67–3.99) 3.12 (1.62–4.62) 2.70 (1.62–3.78) 2.43 (1.07–3.79)
Monagle et al. 2.80 (1.92–3.74) 3.30 (2.83–4.01) - 2.42 (0.82–3.83)
AT-III (%) Cases
61 (44–78) 37 (29–44) 53 (41–54) -
considered to be abnormal:
n=1 (out of 3)
considered to be abnormal:
n=2 (out of 2)
considered to be abnormal:
n=2 (out of 2) -
Controls
51 (15–86) - - 58 (42–74)
considered to be abnormal:
n=4 (out of 6) - - considered to be abnormal:
n=4 (out of 4)
Andrew et al. 63 (39–87) 67 (41–93) 78 (48–108) 97 (73–121)
Monagle et al. 76 (58–90) 74 (60–89) - 109 (72–134)
B.
Coagulation Parameter
Age
d 1-2 d 3-5# d 6-30° d 31-180*
aPTT (s) Cases
74.3 (13.2–135.5) 40.2 (n.a.) 44.9 (24.8–65.0) 39.4 (33.1–45.6)
considered to be abnormal:
n=2 (out of 5)
considered to be abnormal:
n=0 (out of 1)
considered to be abnormal:
n=0 (out of 2)
considered to be abnormal:
n=0 (out of 3) Controls
72.1 (0–155.3) 49.0 (22.7–75.3) 36.7 (n.a.) -
considered to be abnormal:
n=3 (out of 14)
considered to be abnormal:
n=0 (out of 2)
considered to be abnormal:
n=0 (out of 1)
-
Andrew et al. 53.6 (27.5–79.4) 50.5 (26.9–74.1) 44.7 (26.9–62.5) 39.5 (28.3–50.7)
Fibrinogen (g/l) Cases
1.54 (1.09–1.98) 2.49 (n.a.) 2.27 (1.37–3.16) 4.79 (4.54–5.04)
considered to be abnormal:
n=2 (out of 4)
considered to be abnormal:
n=0 (out of 1)
considered to be abnormal:
n=0 (out of 2)
considered to be abnormal:
n=2 (out of 2) Controls
1.93 (0–4.44) 1.62 (0–3.58) 2.71 (n.a.) -
considered to be abnormal:
n=8 (out of 14)
considered to be abnormal:
n=1 (out of 2)
considered to be abnormal:
n=0 (out of 1)
-
Andrew et al. 2.43 (1.50–3.73) 2.8 (1.60–4.18) 2.54 (1.50–4.14) 2.46 (1.50–3.52)
AT-III (%) Cases
31 (0–66) 54 (n.a.) 47 (8–85) 56 (11–102)
considered to be abnormal:
n=1 (out of 5)
considered to be abnormal:
n=0 (out of 1)
considered to be abnormal:
n=1 (out of 2)
considered to be abnormal:
n=1 (out of 3) Controls
28 (10–47) 39 (0–84) 24 (n.a.) -
considered to be abnormal:
n=1 (out of 14)
considered to be abnormal:
n=0 (out of 2)
considered to be abnormal:
n=1 (out of 1)
-
Andrew et al. 38 (14–62) 56 (30–82) 59 (37–81) 83 (45–121)