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Table 4 A comparison of laboratory testing results at two time points (initial diagnosis and perioperative testing) between the two groups

From: The impact of preoperative biliary drainage on postoperative outcomes in patients with malignant obstructive jaundice: a retrospective analysis of 290 consecutive cases at a single medical center

Characteristics DG PG Initial data compared between groups Perioperative data compared between groups
Initial Perioperative Initial Perioperative Statistic P value Statistic P value
Hb (g/L) 125.85 ± 14.41 123.11 ± 14.74 121.17 ± 17.58 115.35 ± 15.93 t = 2.441 0.015 t = 4.193 < 0.001
WBC (109/L) 6.11 ± 1.82 6.00 ± 1.76 6.55 ± 2.26 6.37 ± 2.04 t = −1.754 0.081 t = −1.670 0.096
NEUT (%) 63.15 ± 9.44 64.16 ± 9.31 67.11 ± 9.40 61.9 ± 9.51 t = −3.504 0.001 t = 1.972 0.050
Plt (109/L) 250.5 ± 82.90 255.24 ± 85.44 255.6 ± 88.94 248.31 ± 84.76 t = −0.494 0.662 t = 0.679 0.498
ALB (g/L) 38.57 ± 4.16 38.21 ± 4.06 37.42 ± 4.96 40.75 ± 5.23 t = 2.085 0.038 t = −4.552 < 0.001
ALT (U/L) 198.78 ± 153.36 165.80 ± 140.32 166.10 ± 150.58 79.19 ± 62.58 t = 1.799 0.073 t = 6.340 < 0.001
AST (U/L) 134.50 ± 99.18 115.38 ± 93.63 131.63 ± 121.91 55.24 ± 44.08 t = 0.140 0.889 t = 6.530 < 0.001
TB (μmol/L) 140.84 ± 82.94 158.12 ± 95.11 225.1 ± 126.27 81.76 ± 56.74 t = −6.695 <0.001 t = 7.837 < 0.001
DB (μmol/L) 115.70 ± 69.55 132.52 ± 79.48 184.20 ± 102.96 70.36 ± 48.47 t = −6.601 <0.001 t = 7.598 < 0.001
GGT (U/L) 812.81 ± 627.21 736.18 ± 592.00 582.53 ± 434.59 224.00 ± 178.62 t = 3.501 0.001 t = 9.160 < 0.001
ALP (U/L) 430.06 ± 265.00 423.75 ± 262.36 465.36 ± 362.82 230.09 ± 157.57 t = −0.936 0.350 t = 7.195 < 0.001
Na (mmol/L) 139.74 ± 3.03 139.75 ± 3.15 138.88 ± 3.18 139.87 ± 2.96 t = 2.303 0.022 t = −0.327 0.728
PT (s) 11.53 ± 2.12 11.16 ± 1.21 11.569 ± 1.50 11.69 ± 1.09 t = −0.171 0.864 t = −3.824 < 0.001