Table 3.

Patient characteristics and fluid-yielding duct status

Patient characteristicsAny fluid-yielding duct (n = 29)All non–fluid-yielding ducts (n = 31)Two-sided P value*
Median age (years)42401.0
BRCA mutation20 (70%)25 (80.7%)0.38
Prior breast cancer4 (13.8%)10 (32.3%)0.129
Prior ovarian cancer1 (3.5%)5 (16.1%)0.196
Prior breast or ovarian cancer5 (17.2%)15 (48.4%)0.014
Prior chemotherapy5 (17.2%)14 (45.2%)0.027
Prior breast radiation3 (10.3%)6 (19.4%)0.47
Prior or current selective estrogen response modulator use3 (10.3%)7 (22.6%)0.30
Prior or current oral contraceptive pill use25 (86.2%)25 (80.7%)0.73
Prior or current hormone replacement therapy use7 (24.1%)8 (25.8%)1.0
Parous21 (72.4%)22 (71%)1.0
Breastfed15 (51.7%)19 (61.3%)0.60
Premenopausal16 (55.2%)15 (48.4%)0.62
Bilateral salpingo-oophorectomy before ductal lavage13 (44.8%)16 (51.6%)0.62
Prior breast biopsy15 (51.7%)17 (54.8%)1.0
  • * Two-sided P values from Fisher's exact test for categorical variables and Mann-Whitney U test for continuous variables.