Table 1 The characteristics of women aged 30–46 years at diagnosis with breast cancer between 2013 and 2018.

From: Ethnicity and the tumour characteristics of invasive breast cancer in over 116,500 women in England

  White Indian Pakistani Black Carribean Black African P-value
  (n = 22,001) (n = 604) (n = 483) (n = 325) (n = 609)  
Patient characteristics
  Mean age at diagnosis (SD) 40.7 (4.3) 40.3 (4.2) 39.9 (4.2) 40.7 (4.3) 39.9 (4.3) <0.001
  Most deprived quintile 15.9 (3 490) 17.3 (104) 48.1 (232) 41.5 (134) 41.1 (248) <0.001
  Comorbidity 14.3 (3 137) 12.3 (74) 19.0 (92) 16.6 (54) 10.5 (64) 0.001
Tumour characteristics
  Stage 3 17.6 (3579) 17.6 (97) 20.4 (89) 23.8 (72) 26.6 (147) <0.001
  Grade 3 47.6 (10,196) 48.9 (288) 60.4 (279) 52.6 (163) 57.4 (334) <0.001
  ER negative 23.0 (3813) 26.8 (109) 25.6 (89) 23.3 (52) 30.1 (122) 0.005
  Her2 positive 21.5 (3767) 20.6 (93) 20.3 (78) 17.5 (44) 22.3 (98) 0.521