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Table 1 Comparison of preoperative clinical characteristics and preoperative laboratory data between two groups

From: Application of machine learning model to predict lacunar cerebral infarction in elderly patients with femoral neck fracture before surgery

Variables

Non-LCI (61)

LCI(100)

P value

Age (years)

81(72-85)

84(78-88)

0.009

BMI

21.48(19.78-24.16)

22.15(20.72-23.88)

0.273

Gender

  

0.974

 Female, n(%)

16(26.2)

26(26.0)

 

 Male, n(%)

45(73.8)

74(74.0)

 

Injury mechanism

  

0.555

 Traffic accident injuries, n(%)

6(9.8)

6(6.0)

 

 Fall injury, n(%)

55(90.2)

94(94.0)

 

Types of admission

  

0.216

 Outpatient, n(%)

39(63.9)

54(54.0)

 

 Emergency, n(%)

22(36.1)

46(46.0)

 

 Current drinking, n(%)

2(3.3)

12(12.0)

0.057

 Current smoking, n(%)

2(3.3)

6(6.0)

0.691

Injured limb

  

0.120

 Left, n(%)

40(65.6)

52(53.1)

 

 Right, n(%)

21(34.4)

46(46.9)

 

Coronary heart disease, n(%)

8(13.1)

16(16.0)

0.618

Hypertension, n(%)

28(45.9)

62(62.0)

0.046

Diabetes, n(%)

16(26.2)

18(18.0)

0.215

Pulmonary nodule, n(%)

20(32.8)

40(40.0)

0.358

Fatty liver, n(%)

18(29.5)

24(24.0)

0.440

Kidney stone, n(%)

4(6.6)

16(16.0)

0.078

Gallbladder stone, n(%)

10(16.4)

18(18.0)

0.794

Pneumonia, n(%)

24(39.3)

52(52.0)

0.119

Thrombus of lower limb, n(%)

8(13.1)

14(14.0)

0.874

Barthel index

55(45-60)

40(35-50)

< 0.001

VTE

  

0.035

 Low-risk, n(%)

2(3.3)

0(0)

 

 Medium risk, n(%)

0(0)

14(14.0)

 

 High risk, n(%)

59(96.7)

86(86.0)

 

Education level

  

0.499

 Illiteracy, n(%)

41(67.2)

62(62.0)

 

 Primary, n(%)

14(23.0)

26(26.0)

 

 Junior middle, n(%)

4(6.6)

8(8.0)

 

 High school or above, n(%)

2(3.3)

4(4.0)

 

Prealbumin (mg/L)

205(181-272)

164(134-206)

< 0.001

Total protein (g/L)

68.6(65.0-71.8)

64.8(59.8-68.5)

< 0.001

Albumin (g/L)

39.11 ± 3.34

37.54 ± 4.19

0.014

Globulin (g/L)

28.7(25.1-32.5)

26.5(23.9-28.9)

0.002

A/G

1.33(1.22-1.61)

1.39(1.28-1.53)

0.361

AST (U/L)

24(19-26)

24(18-29)

0.324

ALT (U/L)

17(13-21)

17(11-22)

0.792

ASL/ALT

1.35 ± 0.40

1.44 ± 0.44

0.207

ALP (U/L)

82(63-101)

80(69-88)

0.520

GGT (U/L)

27(18-45)

29(13-37)

0.692

Total bilirubin (umol/L)

16.3(11.7-25.0)

16.0(10.8-21.1)

0.599

Direct Bilirubin (umol/L)

5.0(3.2-6.6)

4.8(3.1-6.5)

0.903

Indirect Bilirubin (umol/L)

12.7(7.4-16.2)

12.0(7.4-14.1)

0.297

FBG (mmol/L)

6.78(5.62-7.90)

6.45(5.61-7.34)

0.217

BUN (mmol/L)

7.2(5.7-8.9)

6.7(5.3-9.3)

0.505

Scr (umol/L)

62.9(48.3-77.7)

64.9(56.6-83.0)

0.078

BUN/Scr

0.11(0.09-0.14)

0.10(0.08-0.12)

0.008

Cystatin-C (mg/L)

1.25(1.09-1.38)

1.26(1.06-1.44)

0.616

CPK (U/L)

124(85-221)

138(90-220)

0.845

Homocysteine (umol/L)

14.2(9.1-15.7)

15.4(10.2-16.5)

0.174

LDH (U/L)

251(225-291)

247(221-265)

0.041

Cholinesterase (U/L)

7592(6946-9107)

7592(5953-7642)

0.042

Blood uric acid (umol/L)

329(304-376)

321(254-402)

0.541

Serum sodium (mmol/L)

138.2(136.6-139.9)

139.3(137.8-141.4)

0.004

Serum kalium (mmol/L)

3.87 ± 0.40

3.81 ± 0.46

0.387

Serum calcium (mmol/L)

2.20(2.14-2.27)

2.16(2.08-2.23)

0.068

Serum chlorine (mmol/L)

103.04 ± 3.05

104.49 ± 3.20

0.005

WBC (10^9/L)

9.16 ± 2.95

8.16 ± 2.64

0.028

Neutrophils (10^9/L)

7.46 ± 2.67

6.59 ± 2.57

0.042

Lymphocyte (10^9/L)

1.13(0.77-1.45)

0.97(0.67-1.41)

0.126

Monocyte (10^9/L)

0.41(0.34-0.49)

0.44(0.31-0.55)

0.284

Eosinophilic granulocyte (10^9/L)

0.07(0.02-0.15)

0.07(0.04-0.14)

0.907

Basophilic granulocyte (10^9/L)

0.010(0-0.013)

0.010(0-0.016)

0.952

RBC (10^12/L)

4.10(3.81-4.36)

3.96(3.53-4.33)

0.226

Hemoglobin (g/L)

126(116-132)

123(103-131)

0.328

Hematocrit

0.37(0.35-0.39)

0.37(0.35-0.39)

0.357

MCV (fl)

91.0(88.7-94.4)

91.4(89.3-94.1)

0.589

MCH (pg)

30.5(29.7-32.0)

30.9(29.7-32.1)

0.590

MCHC (g/L)

335.25 ± 9.03

335.90 ± 11.87

0.712

Platelet count (10^9/L)

196.21 ± 53.83

197.38 ± 57.06

0.898

Plateletcrit

0.18(0.16-0.23)

0.19(0.16-0.22)

0.564

PDW, n(%)

15.9(12.5-16.4)

15.8(13.1-16.2)

0.686

MPV (fl)

9.9(9.1-10.7)

9.8(9.3-10.5)

0.874

PT (seconds)

13.8(12.9-14.8)

13.5(13.1-14.1)

0.020

INR

1.12(0.98-1.18)

1.06(1.01-1.12)

0.056

APTT (seconds)

39.5(33.8-46.4)

39.4(35.8-42.6)

0.910

TT (seconds)

16.0(15.3-16.7)

15.5(14.7-16.7)

0.017

Fibrinogen (g/L)

3.79(3.24-4.18)

4.66(3.73-5.69)

< 0.001

D-Dimer (ug/ml)

6.99(2.61-13.61)

3.57(2.31-6.89)

0.001

  1. Abbreviations: BMI Body mass index, VTE Venous thrombus embolism, WBC White blood cell, RBC Red blood cell, MPV Mean platelet volume, AST Aspartate aminotransferase, ALT Alanine aminotransferase, A/G Albumin/globulin, CPK Creatine phosphate kinase, BUN Blood urea nitrogen, Scr Serum creatinine, MCHC Mean corpusular hemoglobin concerntration, ALP Alkaline phosphatase, GGT Gamma-glutamyltransferase, FBG Fasting blood glucose, LDH Lactate dehydrogenase, MCV Mean corpuscular volume, PDW Platelet distribution width, MCH Mean corpuscular hemoglobin, PT Prothrombin time, INR International normalized ratio, APTT Activated partial thromboplastin time, TT Thrombin time