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Table 3 Patient characteristics at diagnosis according to pathological complete response

From: Mammographic density is a potential predictive marker of pathological response after neoadjuvant chemotherapy in breast cancer

  pCRaNon-pCR
Number of patients 57245
Agemedian (IQR)55 (44–65)53 (44–62)
BMImedian (IQR)25 (22–28)25 (23–28)
Number of pregnancies04 (7.0)34 (13.9)
19 (15.8)37 (15.1)
216 (28.1)85 (34.7)
3+28 (49.1)87 (35.5)
missing 2 (0.8)
Age at first birthmedian (IQR)29 (23–33)28 (25–33)
Age at menarchemedian (IQR)13 (12–13)13 (12–14)
Menopausal statuspostmenopausal35 (61.4)131 (53.5)
premenopausal22 (38.6)114 (46.5)
Smokingcurrent11 (19.3)41 (16.7)
former9 (15.8)21 (8.6)
never32 (56.1)164 (66.9)
missing5 (8.8)19 (7.8)
Hormone replacement therapycurrent4 (7.0)5 (2.0)
former10 (17.5)27 (11.0)
never43 (75.4)209 (85.3)
missing 4 (1.6)
Oral contraceptivescurrent4 (7.0)32 (13.1)
former15 (26.3)65 (26.5)
never22 (38.6)103 (42.0)
missing16 (28.1)45 (18.4)
  1. apathological complete response