Skip to main content
. Author manuscript; available in PMC: 2020 Sep 25.
Published in final edited form as: Dev Neurosci. 2019 Sep 25;41(3-4):177–192. doi: 10.1159/000502276

Table 2.

Reference values for Plasma Biomarkers in Children (n = 28) with Traumatic Brain Injury

Angiopoietin (AP-2)
AP-2 median(minimum-maximum) pg/ml
Overall Overall Mild Moderate Severe
n = 28 n = 28 n = 14 n = 3 n = 11
AP-2 2610.695(1282.355,10392.66) 2409.44(1282.355,4555.11) 2563.66(1488.87,4565.39) 2998.84(1892.22,10392.66)
Age groups
0–4 years n=6 3157.425(2137.015,4654.32) 3065.42(2379.65,3751.19) 3564.525(2563.66,4565.39) 3395.6675(2137.015,4654.32)
5–9 years n=6 1966.21(1488.87,2998.84) 2420.55(1990.59,2850.51) 1488.87(na) 1941.83(1892.22,2998.84)
10–14 years n=8 1958.18(1282.355,2657.73) 1674.505(1282.355,2439.23) 0 2456.13(2254.53,2657.73)
15–18 years n=8 4137.63(2899.59,10392.66) 4137.63(2899.59,4555.11) 0 5656.055(3382.03,10392.66)
Sex (male)
Female n=10 2103.372(1478.58,3382.03) 1990.59(1478.58,2439.23) 2563.66(na) 2195.773(1941.83,3382.03)
Male n=18 3286.425(1282.355,10392.66) 2899.59(1282.355,4555.11) 3027.13(1488.87,4565.39) 3574.01(1892.22,10392.66)
Abnormalities on CT head
Subdural hematoma (SDH)
n =14
Isolated n = 2
Mixed n = 12
2501.445(2439.23,2563.66)
3300.85(1478.58,10392.66)
2439.23(na)
3300.85(1478.58,4555.11)
2563.66(na)
0
0
4937.557(,10392.66)
Epidural hematoma (EDH)
n = 8
Isolated n = 1
Mixed n = 7
3574.01(na)
2137.015(1502.38,4565.39)
0
2030.16(1502.38,4421.58)
0
4565.39(na)
3574.01(na)
2397.372(2137.015,2657.73)
Subarachnoid hemorrhage
(SAH) n = 12
Isolated n = 0
Mixed n = 12
0
3190.435(1502.38,10392.66)
0
3352.095(1502.38,4555.11)
0
0
0
3190.435(2137.015,10392.66)
Intraparenchymal
hemorrhage (IPH) n = 4
Isolated n =1
Mixed n = 3
1282.355(na)
4421.58(2998.84,4555.11)
1282.355(na)
4488.345(4421.58,4555.11)
0
0
0
2998.84(na)
Cerebral edema
n = 4
Isolated n = 0
Mixed n = 4
0
3140.81(1892.22,10392.66)
0
2899.59(na)
0
0
0
3382.03(1892.22,10392.66)
Cerebral herniation
n = 1
Isolated n = 0
Mixed n = 1
0
1892.22(na)
0
0
0
0
0
1892.22(na)
Diffuse axonal injury
n =1
isolated n=1
Mixed n = 0
2254.53(na)
0
0
0
0
0
2254.53(na)
0
Skull fracture
n = 15
Isolated n = 0
Mixed n=15
0
2137.015(1478.58,10392.66)
0
2069.73(1478.58,4421.58)
0
3027.13(1488.87,4565.39)
0
2567.9275(1941.83,10392.66)
Subgaleal hematoma
n = 13
Isolated n = 0
Mixed n=13
0
2850.51(1478.58,10392.66)
0
2224.69(1478.58,2899.59)
0
4565.39(na)
0
4018.175(1941.83,10392.66)
Pneumocephalus
n = 7
Isolated n = 0
Mixed n=7
0
2069.73(1478.58,10392.66)
0
1846.63(1478.58,2069.73)
0
3027.13(1488.87,4565.39)
0
6695.75(2998.84,10392.66)
Intraventricular hemorrhage
(IVH) n = 1
Isolated n = 0
Mixed n=1
0
7738.1(na)
0
0
0
0
0
7738.1(na)
Endothelin-1(ET-1)
Endohelin-1 median(minimum-maximum) pg/ml
Overall Overall Mild Moderate Severe
n = 28 n = 28 n = 14 n = 3 n = 11
ET-1 92.9675(25.86,502.5) 91.945(31.3115,502.5) 87.72(49.34,105.68) 94.565(25.86,126.23)
Age groups
0–4 years n=6 101.265(49.34,261.12) 157.0125(52.905,261.12) 77.51(49.34,105.68) 101.265(97.81,104.72)
5–9 years n=6 100.3275(87.72,502.5) 304.295(106.09,502.5) 87.72(na) 94.565(91.37,126.23)
10–14 years n=8 97.075(31.3115,176.35) 73.58(31.3115,176.35) 0 103.52(98.37,108.67)
15–18 years n=8 70.905(25.86,132.55) 85.175(68.08,132.55) 0 63.895(25.86,73.73)
Sex (male)
Female n=10 96.795(41.745,502.5) 95.78(41.745,502.5) 49.34(na) 98.09(60.64,126.23)
Male n=18 89.74(25.86,261.12) 88.11(31.3115,261.12) 96.7(87.72,105.68) 91.37(25.86,108.67)
Abnormalities on CT head
SDH
n =14
Isolated n = 2
Mixed n = 12
72.56(49.34,95.78)
90.025(51.38,261.12)
95.78(na)
94.165(51.38,261.12)
49.34(na)
0
0
85.77(67.15,126.23)
EDH
n = 8
Isolated n = 1
Mixed n = 7
25.86(na)
105.68(41.745,502.5)
0
91.965(41.745,502.5)
0
105.68(na)
25.86(na)
103.24(97.81,108.67)
SAH
n = 12
Isolated n = 0
Mixed n = 12
0
94.59(51.38,132.55)
0
94.165(51.38,132.55)
0
0
0
94.59(60.64,108.67)
IPH
n = 4
Isolated n =1
Mixed n = 3
31.3115(na)
91.37(82.24,132.55)
31.3115(na)
107.395(82.24,132.55)
0
0
0
91.37(na)
Cerebral edema
n = 4
Isolated n = 0
Mixed n = 4
0
80.92(60.64,94.565)
0
88.11(na)
0
0
0
73.73(60.64,94.565)
Cerebral herniation
n = 1
Isolated n = 0
Mixed n = 1
0
94.565(na)
0
0
0
0
0
94.565(na)
Diffuse axonal injury
n =1
isolated n=1
Mixed n = 0
98.37(na)
0
0
0
0
0
98.37(na)
0
Skull fracture
n = 15
Isolated n = 0
Mixed n=15
0
97.81(41.745,502.5)
0
106.09(41.745,502.5)
0
96.7(87.72,105.68)
0
94.59(73.73,126.23)
Subgaleal hematoma
n = 13
Isolated n = 0
Mixed n=13
0
97.81(41.745,261.12)
0
97.1(41.745,261.12)
0
105.68(na)
0
85.77(60.64,126.23)
Pneumocephalus
n = 7
Isolated n = 0
Mixed n=7
0
91.37(41.745,176.35)
0
122.63(41.745,176.35)
0
96.7(87.72,105.68)
0
82.55(73.73,91.37)
IVH
n = 1
Isolated n = 0
Mixed n=1
0
67.15(na)
0
0
0
0
0
67.15(na)
Endocan (EC-2)
EC-2 median(minimum-maximum) pg/ml
Overall Overall Mild Moderate Severe
n = 28 n = 28 n = 14 n = 3 n = 11
EC-2 2032.755(511.07,5625.625) 2072.01(511.07,2573.95) 1500.41(1024.84,2125.91) 2011.74(528.79,5625.625)
Age groups
0–4 years n=6 1136.685(511.07,2200.9) 1355.985(511.07,2200.9) 1575.375(1024.84,2125.91) 1136.685(1032.58,1240.79)
5–9 years n=6 1172.355(528.79,2490.365) 1172.355(976.28,1368.43) 1500.41(na) 919.06(528.79,2490.365)
10–14 years n=8 1998.91(978.53,2573.95) 2019.925(978.53,2573.95) 0 1664.295(1316.85,2011.74)
15–18 years n=8 2389.375(2090.25,5625.625) 2175.815(2090.25,2305.86) 0 2891.0825(2472.89,5625.625)
Sex (male)
Female n=10 1852.568(978.53,2490.365) 1719.055(978.53,2278.45) 2125.91(na) 1894.87(1032.58,2490.365)
Male n=18 2072.01(511.07,5625.625) 2095.89(511.07,2573.95) 1262.625(1024.84,1500.41) 2011.74(528.79,5625.625)
Abnormalities on CT head
SDH
n =14
Isolated n = 2
Mixed n = 12
2055.995(1986.08,2125.91)
2148.395(511.07,3272.335)
1986.08(na)
2093.07(511.07,2278.45)
2125.91(na)
0
0
2500.0975(1032.58,3272.335)
EDH
n = 8
Isolated n = 1
Mixed n = 7
5625.625(na)
1719.055(1024.84,2278.45)
0
1987.3975(1368.43,2278.45)
0
1024.84(na)
5625.625(na)
1522.16(1032.58,2011.74)
SAH
n = 12
Isolated n = 0
Mixed n = 12
0
2072.01(528.79,3272.335)
0
2093.07(976.28,2278.45)
0
0
0
1626.265(528.79,3272.335)
IPH
n = 4
Isolated n =1
Mixed n = 3
2573.95(na)
2095.89(528.79,2255.74)
2573.95(na)
2175.815(2095.89,2255.74)
0
0
0
528.79(na)
Cerebral edema
n = 4
Isolated n = 0
Mixed n = 4
0
2389.375(919.06,3272.335)
0
2305.86(na)
0
0
0
2472.89(919.06,3272.335)
Cerebral herniation
n = 1
Isolated n = 0
Mixed n = 1
0
919.06(na)
0
0
0
0
0
919.06(na)
Diffuse axonal injury
n =1
isolated n=1
Mixed n = 0
1316.85(na)
0
0
0
0
0
1316.85(na)
0
Skull fracture
n = 15
Isolated n = 0
Mixed n=15
0
1719.055(528.79,3272.335)
0
2053.77(976.28,2278.45)
0
1262.625(1024.84,1500.41)
0
1761.4725(528.79,3272.335)
Subgaleal hematoma
n = 13
Isolated n = 0
Mixed n=13
0
1719.055(511.07,3272.335)
0
1348.7925(511.07,2305.86)
0
1024.84(na)
0
2481.6275(1032.58,3272.335)
Pneumocephalus
n = 7
Isolated n = 0
Mixed n=7
0
1500.41(528.79,3272.335)
0
1719.055(978.53,2053.77)
0
1262.625(1024.84,1500.41)
0
1900.5625(528.79,3272.335)
IVH
n = 1
Isolated n = 0
Mixed n=1
0
2509.83(na)
0
0
0
0
0
2509.83(na)
Interleukin-6 (IL-6)
IL-6 median(minimum-maximum) pg/ml
Overall Overall Mild Moderate Severe
n = 28 n = 28 n = 14 n = 3 n = 11
IL-6 23.3675(6.26,180.54) 23.825(6.26,92.12) 19.42(10.96,22.02) 32.1(11.32,180.54)
Age groups
0–4 years n=6 31.07(10.96,95.17) 65.0275(37.935,92.12) 15.19(10.96,19.42) 59.6875(24.205,95.17)
5–9 years n=6 20.6275(15.68,32.1) 20.84(19.15,22.53) 22.02(na) 19.235(15.68,32.1)
10–14 years n=8 13.895(6.26,37.645) 10.32(6.26,31.47) 0 29.1775(20.71,37.645)
15–18 years n=8 36.395(11.32,180.54) 28.105(25.12,43.84) 0 85.81(11.32,180.54)
Sex (male)
Female n=10 19.1925(6.26,97.09) 11.71(6.26,31.47) 10.96(na) 57.94(19.235,97.09)
Male n=18 26.19(7.65,180.54) 27.26(7.65,92.12) 20.72(19.42,22.02) 32.1(11.32,180.54)
Abnormalities on CT head
SDH
n =14
Isolated n = 2
Mixed n = 12
9.945(8.93,10.96)
30.21(11.32,95.17)
8.93(na)
30.21(11.71,92.12)
10.96(na)
0
0
46.88(11.32,95.17)
EDH
n = 8
Isolated n = 1
Mixed n = 7
180.54(na)
19.42(6.26,95.17)
0
15.43(6.26,25.12)
0
19.42(na)
180.54(na)
66.408(37.645,95.17)
SAH
n = 12
Isolated n = 0
Mixed n = 12
0
27.035(11.71,97.09)
0
23.825(11.71,43.84)
0
0
0
56.09(15.68,97.09)
IPH
n = 4
Isolated n =1
Mixed n = 3
7.65(na)
25.12(15.68,43.84)
7.65(na)
34.48(25.12,43.84)
0
0
0
15.68(na)
Cerebral edema
n = 4
Isolated n = 0
Mixed n = 4
0
53.315(27.26,97.09)
0
27.26(na)
0
0
0
74.53(32.1,97.09)
Cerebral herniation
n = 1
Isolated n = 0
Mixed n = 1
0
32.1 (na)
0
0
0
0
0
32.1 (na)
Diffuse axonal injury
n =1
isolated n=1
Mixed n = 0
20.71(na)
0
0
0
0
0
20.71(na)
0
Skull fracture
n = 15
Isolated n = 0
Mixed n=15
0
22.02(6.26,95.17)
0
22.53(6.26,37.935)
0
20.72(19.42,22.02)
0
46.8825(15.68,95.17)
Subgaleal hematoma
n = 13
Isolated n = 0
Mixed n=13
0
24.205(6.26,97.09)
0
24.895(6.26,92.12)
0
19.42(na)
0
49.3675(11.32,97.09)
Pneumocephalus
n = 7
Isolated n = 0
Mixed n=7
0
19.42(6.26,74.53)
0
16.08(6.26,31.47)
0
20.72(19.42,22.02)
0
45.105(15.68,74.53)
IVH
n = 1
Isolated n = 0
Mixed n=1
0
11.32(na)
0
0
0
0
0
11.32(na)

Median (minimum – maximum) level calculated for each biomarker

Median (minimum – maximum) level calculated separately for isolated or mixed lesion on CT (na) indicates only one case included in analysis