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Table 2 Patient Demographics

From: Predicting severity of acute appendicitis with machine learning methods: a simple and promising approach for clinicians

N : 1132

Mean (± SE), Median(IQR)

Non-Perforated

(N: 990)

Perforated

(N: 142)

p

Age (Median)

35(27–48)

47(37–64)

< 0.001

Gender (%)

   

Male

Female

755 (76%)

235 (24%)

87 (61%)

55 (39%)

< 0.001

WBC (G/L)(Median)

13.4(10.8–16.4)

14.1 (11.2–17.4)

0.243

Neutrophil (G/l) (Median)

10.3 (7.9–13.1)

11.5(8.3–14.6)

0.037

Lymphocyte(G/l)(Median)

1.8(1.3–2.5)

1.5(0.9–2.1)

0.002

NLR (Median)

5.5(3.5–8.9)

7.4(4.6–13.6)

< 0.001

Platelet(µl)(Median)

247 (208–285)

269(200–307)

0.982

Total Bilirubin(Median) (mg/dL)

0.73(0.5–1.3)

1(0.6–1.5)

< 0.001

CRP (mg/L)(Median)

13.8(4.2–42.4)

130.3(40.7-204.6)

< 0.001

AppD (mm)(Median)

10(8.5–12)

12(10–15)

< 0.001

PALC

   

Presence

Absence

216 (22%)

774 (78%)

102 (72%)

40 (28%)

< 0.001

  1. SD: Standard Error, IQR: InterQuartile Range, WBC: White Blood Cell, NLR: Neutrophil/Lymphocyte Ratio CRP: C-Reactive Protein, AppD: Appendix Diameter, PALC: Peri-Appendicular Liquid Collection (Significant Values are shown in bold.)