Table 2 Characteristics of postmenopausal breast cancer cases according to trajectory group
From: Trajectories of body mass index in adulthood and risk of subtypes of postmenopausal breast cancer
Postmenopausal breast cancer cases | T1 «Normal- stable»a | T2 «Normal-overweight»a | T3 «Normal- obesity»a | T4 «Overweight- obesity»a | T5 «Obesity- decrease»a |
|---|---|---|---|---|---|
(n = 7223) | Mean ± SD or n (%) | Mean ± SD or n (%) | Mean ± SD or n (%) | Mean ± SD or n (%) | Mean ± SD or n (%) |
Cancer characteristics | |||||
Number of cases | 3166 (43.8) | 2987 (41.4) | 885 (12.3) | 145 (2.0) | 40 (0.6) |
Age at diagnosis | 63.0 ± 0.13 | 63.3 ± 0.13 | 63.7 ± 0.23 | 62.2 ± 0.52 | 67.0 ± 1.31 |
ER/PR status | |||||
ER+PR+ | 1805 (57.0) | 1820 (60.9) | 591 (66.8) | 94 (64.8) | 19 (47.5) |
ER−PR− | 376 (11.9) | 327 (11.0) | 91 (10.3) | 16 (11.0) | 4 (10.0) |
ER+PR− | 614 (19.4) | 517 (17.3) | 145 (16.4) | 16 (11.0) | 7 (17.5) |
ER−PR+ | 26 (0.8) | 18 (0.6) | 1 (0.1) | 2 (1.4) | 1 (2.5) |
Missing | 345 (10.9) | 305 (10.2) | 57 (6.4) | 17 (11.7) | 9 (22.5) |
ER/PR/HER2 statusb | |||||
Luminal A-like | 1479 (46.7) | 1496 (50.1) | 481 (54.4) | 78 (53.8) | 15 (37.5) |
Luminal B-like | 634 (20.0) | 557 (18.7) | 167 (18.9) | 21 (14.5) | 8 (20.0) |
HER2+ | 112 (3.5) | 104 (3.5) | 25 (2.8) | 6 (4.1) | 1 (2.5) |
TNBC | 212 (6.7) | 184 (6.2) | 58 (6.6) | 9 (6.2) | 3 (7.5) |
Missing | 729 (23.0) | 646 (21.6) | 154 (17.4) | 31 (21.4) | 13 (32.5) |