Table 1.
Results of the association analysis of demographic characteristics between breast cancer cases and healthy group
| Characteristics | Cases | Controls | P value |
|---|---|---|---|
| n (%) | n (%) | ||
| Age (Y) | |||
| ≤40 | 74 (25.8) | 138 (44.4) | |
| >40 | 213 (74.2) | 173 (55.6) | <0.001 |
| Mean | 47.80 ± 10.90 | 44.15 ± 12.07 | <0.001 |
| Menopausal status | |||
| Peri and premenopausal | 86 (45.3) | 217 (78.9) | |
| Postmenopausal | 104 (54.7) | 58 (21.1) | <0.001 |
| Body mass index (kg/m2) | |||
| <25 | 80 (31.2) | 154 (51.2) | |
| ≥25 | 176 (68.8) | 147 (48.8) | <0.001 |
| Mean | 27.59 ± 5.06 | 25.20 ± 4.12 | <0.001 |
| Abortion | |||
| Yes | 172 (67.5) | 151 (65.1) | |
| No | 83 (32.5) | 81 (34.9) | 0.63 |
| History of lactation | |||
| Yes | 246 (91.4) | 223 (97.4) | |
| No | 23 (8.6) | 6 (2.6) | <0.01 |
| Family history of cancer | |||
| Yes | 172 (60.8) | 229 (73.9) | |
| No | 111 (39.2) | 81 (26.1) | <0.001 |
| History of other cancer | |||
| Yes | 20 (7.2) | 3 (1.0) | |
| No | 259 (92.8) | 301 (99.0) | <0.001 |
Data are presented as mean ± SD or n (%).