Table 1 Clinicopathological characteristics of the study sample.

From: Development of a nomogram for predicting malignancy in BI-RADS 4 breast lesions using contrast-enhanced ultrasound and shear wave elastography parameters

Variables

Benign (n = 76)

Malignant (n = 35)

Statistic

p

Age

45.03 y ± 10.24

52.51 y ± 13.10

− 2.987

0.004*

BI-RADS

  

Fisher

< 0.001*

 4A

70 (92.1%)

17 (48.6%)

  

 4B

5 (6.6%)

6 (17.1%)

  

 4C

1 (1.3%)

12 (34.2%)

  

SWE_Mean (kPa)

20.40 (14.32, 30.95)

43.80 (18.95, 102.20)

− 4.008

< 0.001*

SWE_Min (kPa)

13.35 (7.15, 25.97)

42.10 (14.25, 56.80)

− 4.313

< 0.001*

SWE_Max (kPa)

30.50 (17.30, 44.62)

63.10 (33.00, 120.00)

− 4.332

< 0.001*

EM ratio

3.10 (2.12, 4.62)

4.40 (2.65, 5.76)

− 1.962

0.050

AT

0.20 (0.20, 0.21)

0.20 (0.10, 0.21)

0.492

0.623

TTP

21.55 (14.24, 30.41)

24.74 (16.32, 31.83)

− 0.968

0.333

PI

15.07 (9.70, 20.06)

22.55 (15.91, 28.27)

− 3.710

< 0.001*

AS

0.54 (0.36, 0.75)

0.59 (0.39, 0.82)

− 1.060

0.289

AUC

1194.65 (699.84, 1553.12)

1967.52 (1080.00, 2487.57)

− 3.666

< 0.001*

BI

13.84 (11.03, 16.88)

13.81 (11.63, 17.38)

− 0.438

0.661

DT/2

71.27 (58.93, 88.81)

73.69 (58.58, 91.11)

− 0.276

0.782

DS

0.12 (0.07, 0.17)

0.13 (0.07, 0.19)

− 0.821

0.412

  1. The normally distributed continuous variables were expressed as the mean ± standard deviation, non-normally distributed variables were described as median (interquartile range), and categorical data were presented as counts (%). *P < 0.05.
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