Table 1 Clinical characteristics of ductal lesions
From: The diagnostic value of contrast-enhanced ultrasonography in breast ductal abnormalities
Characteristics | All patients | Benign, n (%) (n = 44) | Malignant, n (%) (n = 38) | χ 2/t | P |
|---|---|---|---|---|---|
Age(y) | 48.7 ± 9.5 | 46.0 ± 7.8 | 51.9 ± 10.4 | -2.944 | 0.004* |
Symptoms | |||||
 Pain/discomfort and palpable | 36 | 11 | 25 | 0.033 | 0.535 |
 Nipple discharge | 28 | 23 | 5 |  |  |
 None | 18 | 10 | 8 |  |  |