Table 1 Characteristic of breast cancer patients and health control individuals
From: The association of CASC16 variants with breast Cancer risk in a northwest Chinese female population
Variables | Cases (n = 681) | Controls (n = 680) | p |
|---|---|---|---|
Age, years (mean ± SD)a | 50.58 ± 9.84 | 50.63 ± 9.71 | 0.930 |
> 50 | 345 (51%) | 344 (51%) | |
≤ 50 | 336 (49%) | 336 (49%) | |
Tumor position | |||
Left | 274 (40%) | ||
Right | 288 (42%) | ||
Missing | 119 (18%) | ||
LN metastasis | |||
Node-positive | 323 (47%) | ||
Node-negative | 331 (49%) | ||
Missing | 27 (4%) | ||
Clinical stage | |||
III/IV | 150 (22%) | ||
I/II | 321 (47%) | ||
Missing | 210 (31%) | ||
Tumor size | |||
> 2 cm | 409 (60%) | ||
≤ 2 cm | 139 (20%) | ||
Missing | 133 (20%) | ||
PR | |||
Positive | 414 (61%) | ||
Negative | 257 (38%) | ||
Missing | 10 (1%) | ||
ER | |||
Positive | 462 (68%) | ||
Negative | 198 (29%) | ||
Missing | 21 (3%) | ||
C-erb | |||
Positive | 405 (59%) | ||
Negative | 114 (17%) | ||
Missing | 162 (24%) | ||
Menopausal status | |||
Yes | 321 (47%) | ||
No | 247 (36%) | ||
Missing | 113 (17%) | ||
Procreative times | |||
1 | 227 (33%) | ||
> 1 | 260 (38%) | ||
Missing | 194 (29%) | ||
Age of menarche (years) | |||
≤ 14 | 340 (50%) | ||
> 14 | 233 (34%) | ||
Missing | 108 (16%) | ||
BMI, kg/m2 (mean ± SD)a | |||
≤ 24 | 333 (49%) | 240 (35%) | 0.274 |
> 24 | 168 (25%) | 114 (17%) | 0.321 |
Missing | 180 (26%) | 326 (48%) | |