Table 2.

Selected tumor characteristics of 1,087a patients stratified by ER status in relation to daily coffee consumption (cups/day)

AllLow (0–1)Moderate (2–4)High (5+)
(n = 1,087)(n = 202)(n = 665)(n = 220)Ptrendb
ER+ tumors (n = 956)
 Invasive tumor size (pT)
  1704 (73.6%)124 (67.0%)436 (74.4%)144 (77.8%)0.009
  2236 (24.7%)54 (29.2%)143 (24.4%)39 (21.1%)
  314 (1.5%)7 (3.8%)5 (0.8%)2 (1.1%)
  42 (0.2%)02 (0.3%)0
 Ki67
  Negative/low (≤20%)292 (68.7%)62 (67.4%)171 (68.1%)59 (72.0%)0.527
  High (>20%)133 (31.3%)30 (32.6%)80 (31.9%)23 (28.0%)
  Missing (n)53193335103
ER tumors (n = 131)
 Invasive tumor size (pT)
  179 (60.3%)10 (58.8%)47 (59.5%)22 (62.9%)0.512
  250 (38.2%)6 (35.3%)31 (39.2%)13 (37.1%)
  32 (1.5%)1 (5.9%)1 (1.3%)0
  40000
 Ki67
  Negative/low (≤20%)8 (15.7%)1 (12.5%)2 (7.1%)5 (33.3%)0.092
  High (>20%)43 (84.3%)7 (87.5%)26 (92.9%)10 (66.7%)
  Missing (n)8095120
  • aInformation on ER status was missing for 3 patients.

  • bThe linear-by-linear association test.