Table 1.
Demographic and clinical characteristics of breast cancer patients
| Variable | Number of cases (N = 1,431) |
|---|---|
| Age at diagnosis (years) | |
| <50 |
780 |
| 50 to 69 |
572 |
| ≥70 |
79 |
| Neoadjuvant chemotherapy received | |
| No |
1,075 |
| Yes |
356 |
| Comorbidities | |
| None |
1,024 |
| One or more |
407 |
| Menopausal status | |
| Premenopause |
703 |
| Menopause |
728 |
| Residential status | |
| Rural |
453 |
| Urban |
978 |
| Smoking | |
| Previous or current |
13 |
| Never or no report |
1,418 |
| Reasons for visit | |
| Self-examination |
1,404 |
| Physical examination |
27 |
| Tumor size | |
| ≤2 |
1,088 |
| >2 |
214 |
| Lymph node metastasis | |
| Negative |
823 |
| Positive |
606 |
| Distant metastasis | |
| Negative |
1,421 |
| Positive |
10 |
| Tumor stage | |
| I |
178 |
| II |
927 |
| III |
198 |
| IV |
10 |
| Hormone receptor status |
|
| ER- and PR- |
203 |
| ER + and/or PR+ |
648 |
| Histological type |
|
| IDC |
1,164 |
| ILC |
49 |
| Others |
218 |
| Procedure |
|
| Radical mastectomy |
503 |
| Modified radical mastectomy |
828 |
| Breast/nipple conserving surgery |
55 |
| NOS |
45 |
| Treatment |
|
| Surgery |
1,431 |
| Radiotherapy |
11 |
| Endocrinotherapy |
264 |
| Chemotherapy |
936 |
| NOS | 496 |
ER, estrogen receptor; PR, progestogen receptor; IDC, invasive ductal carcinoma; ILC, invasive lobular carcinoma; NOS, not otherwise specified.