Table 2.

Correlates of obtaining adequate ductal lavage cell count (n = 171)

PredictorInadequate sample (n = 101)Adequate sample (n = 70)P
Menopausal status, n (%)
    Premenopausal49 (52.7)44 (47.3)0.064
    Postmenopausal52 (66.7)26 (33.3)
BRCA1/2 mutation status, n (%)
    Noncarrier (2 untested excluded)10 (43.5)13 (56.5)0.048 among all 3 categories
    Carrier BRCA150 (55.6)40 (44.4)0.11 carriers vs noncarriers
    Carrier BRCA240 (71.4)16 (28.6)0.080 between BRCA1/2
Parity, n (%)
    Nulliparous48 (68.6)22 (31.4)0.041
    Parous (≥1 births)53 (52.5)48 (47.5)
Breast-feeding, n (%)
    Never breast-fed59 (70.2)25 (29.8)0.005
    Ever breast-fed42 (48.3)45 (51.7)
NAF obtained, n (%)
    No83 (65.9)43 (34.1)0.004
    Yes18 (40.0)27 (60.0)
Prior breast cancer, n (%)
    No85 (56.7)65 (43.3)0.10
    Yes16 (76.2)5 (23.8)
Prior ovarian surgery, n (%)
    Never or unilateral oophorectomy57 (55.3)46 (44.7)0.27
    Bilateral oophorectomy44 (64.7)24 (35.3)
Prior breast surgery, n (%)
    None82 (56.2)64 (43.8)0.079
    Mastectomy or lumpectomy19 (76.0)6 (24.0)
Prior chemotherapy, n (%)
    No88 (57.1)66 (42.9)0.19
    Yes13 (76.5)4 (23.5)
Prior radiation, n (%)
    No90 (57.3)67 (42.7)0.16
    Yes11 (78.6)3 (21.4)
Current MHT use, n (%)
    No87 (56.9)66 (43.1)0.13
    Yes14 (77.8)4 (22.2)
Current OCP use, n (%)
    No88 (59.9)59 (40.1)0.66
    Yes13 (54.2)11 (45.8)
Current SERM use, n (%)
    No89 (56.3)69 (43.7)0.016
    Yes12 (92.3)1 (7.7)
Age (y), mean40.639.70.39
Body mass index (kg/m2), mean26.126.60.88