|
Ultrasound features
|
Malignant (n = 14)
|
Benign (n = 58)
|
Statistical significance
|
|---|
|
N (%)
|
N (%)
|
p value*
|
Odds ratio (95% CI)
|
Phi coefficiency #
|
|---|
|
Echopattern
|
|
Hypoechoic
|
10 (71.4)
|
9 (15.5)
|
< 0.001
|
13.61 (3.49–53.03)
|
0.502
|
|
Not hypoechoic
|
4 (28.6)
|
49 (84.5)
| | | |
|
Shape
|
|
Taller than wide
|
9 (64.3)
|
19 (32.8)
|
0.037
|
3.695 (1.09–12.55)
|
0.256
|
|
Wider than tall
|
5 (35.7)
|
39 (67.2)
| | | |
|
Consistency
|
|
Solid
|
12 (85.7)
|
47 (81.0)
|
1.0
|
1.4 (0.27–7.2)
|
.048
|
|
Partially solid
|
2 (14.3)
|
11 (19.0)
| | | |
|
Halo
|
|
Halo Absent
|
12 (85.7)
|
11 (19.0)
|
< 0.001
|
25.64 (5.0–131.44)
|
0.567
|
|
Halo Present
|
2 (14.3)
|
47 (81.0)
| | | |
|
Outline
|
|
Irregular
|
8 (57.1)
|
8 (13.8)
|
0.002
|
8.333 (2.28–30.43)
|
.413
|
|
Regular
|
6 (42.9)
|
50 (86.2)
| | | |
|
Calcification
|
|
Micro-calcification
|
11 (78.6)
|
2 (3.4)
|
< 0.001
|
102.67 (15.32–688.1)
|
0.773
|
|
No mico-calcification
|
3 (21.4)
|
56 (96.6)
| | | |
|
Vascularity
|
|
Internal vascularity &/internal and peripheral
|
12 (85.7)
|
6 (10.3)
|
< 0.001
|
52.0 (9.32–290.11)
|
0.689
|
|
No vascularity and/peripheral vascularity
|
2 (14.3)
|
52 (89.7)
| | | |
- *Fisher exact test was used as some expected cell values were less than 5
- CI, Confidence interval
- Significant p value if < 0.05 level
- # To detect effect size of the difference
- Weak (0.2)–Moderate (0.4)–Strong (0.6)–Very strong (0.8)–Perfect (1.0)
