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Table 2 Coagulation tests of children who bled vs. children who didn’t

From: Coagulation tests or standardized questionnaire, which is better as a predictor of bleeding? A prospective study among children before tonsillectomy and/or adenoidectomy

 Groupp
Bleeding (N = 18)
N (%)
Non bleeding (N = 125)
N (%)
Abnormal coagulation tests results5 (19.2%)21 (80.8%)0.34
Normal test results13 (11.1%)104 (88.9%) 
 Mean ± SD
[median, range]
Mean ± SD
[median, range]
 
Platelets 109/dl301.06 ± 73.97
[294.5, 196–453]
338.24 ± 86.73
[335.5, 132–764]
0.08
PTT Sec33.68 ± 3.62
[33.9, 26.7–38.7]
332.098 ± 3.782
[32.87, 24.7–46.8]
0.34
aPTT ratio1.19 ± 0.12
[1.20, 0.99–1.39]
1.187 ± 0.13
[1.1728, 0.89–1.68]
0.63
PT Sec11.96 ± 0.96
[12.15, 10.1–13.7]
11.7495 ± 12.0142
[11.60, 9.9–135.32]
0.19
PT (%)96.61 ± 11.20
[93.5, 80–121]
100.945 ± 11.05
[100, 82–130]
0.12
INR1.01 ± 0.07
[1.03, 0.88–1.14]
0.99 ± 0.07
[0.99, 0.84–1.15]
0.20
  1. N number, SD standard deviation, p probability value
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