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Table 3 A comparison of laboratory testing results between two time points (initial diagnosis and perioperative testing) within each group

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

Parameters

DG

Within DG

PG

Within PG

Initial

Perioperative

Cases with paired data available

Statistic

P value

Initial

Perioperative

Cases with paired data available

Statistic

P value

Hb (g/L)

126.13 ± 14.34

122.97 ± 14.71

124

t = 5.400

< 0.001

121.47 ± 17.51

114.70 ± 15.78

147

t = 6.352

< 0.001

WBC (10^9/L)

6.12 ± 1.84

5.98 ± 1.75

124

t = 1.463

0.146

6.45 ± 2.10

6.34 ± 2.00

147

t = 0.639

0.524

NEUT (%)

63.10 ± 9.36

64.23 ± 9.31

124

t = −1.789

0.076

66.94 ± 9.27

62.30 ± 9.37

146

t = 4.705

0.028

Plt (10^9/L)

252.23 ± 83.36

254.86 ± 85.68

124

t = −0.751

0.454

253.24 ± 87.03

243.80 ± 83.14

147

t = 1.764

< 0.001

ALB (g/L)

38.82 ± 4.09

38.17 ± 4.05

121

t = 2.435

0.016

37.43 ± 4.99

40.70 ± 5.22

147

t = −5.914

0.100

ALT (U/L)

200.21 ± 151.89

165.80 ± 140.32

122

t = 4.517

< 0.001

166.09 ± 152.17

78.52 ± 59.40

147

t = 7.656

< 0.001

AST (U/L)

133.94 ± 99.47

115.38 ± 93.63

122

t = 2.887

0.005

131.58 ± 122.80

54.60 ± 43.18

146

t = 7.882

0.001

TB (μmol/L)

140.99 ± 83.27

158.12 ± 95.11

122

t = −4.572

< 0.001

227.38 ± 126.49

83.03 ± 57.59

147

t = 14.399

< 0.001

DB (μmol/L)

116.11 ± 70.21

133.40 ± 79.21

121

t = −5.402

< 0.001

186.06 ± 103.03

71.49 ± 49.17

147

t = 13.904

< 0.001

GGT (U/L)

798.17 ± 602.69

739.93 ± 593.06

119

t = 3.228

0.002

586.88 ± 436.73

228.60 ± 181.69

145

t = 11.031

< 0.001

ALP (U/L)

434.24 ± 268.60

423.75 ± 262.36

122

t = 1.031

0.305

465.28 ± 363.83

230.40 ± 158.91

145

t = 9.484

< 0.001

Na (mmol/L)

139.83 ± 3.01

139.74 ± 3.16

119

t = 0.460

0.646

138.87 ± 3.16

139.78 ± 2.96

146

t = −3.279

< 0.001

PT (s)

11.35 ± 1.42

11.20 ± 1.22

117

t = 0.843

0.401

11.59 ± 1.51

11.65 ± 1.08

146

t = −0.402

0.682

  1. Hb hemoglobin, WBC white blood cell, NEUT neutrophils, Plt platelet, ALB albumin, ALT alanine transminase-glutamic pyruvic transaminase, AST aspartate transminase-glutamic oxalo-acetic transaminase, TB total bilirubin, DB direct bilirubin, GGT γ-glutamyltransferase, ALP alkaline phosphatase, Na natrium, PT prothrombin time