Table 1.
Comparison of general data [n (%)] (mean ± SD)
| Classification | Observation group (n=142) | Control group (n=121) | t/χ2 | P |
|---|---|---|---|---|
| Age (years) | 47.23±4.45 | 47.53±4.42 | 0.546 | 0.585 |
| BMI (kg/m2) | 22.37±2.64 | 22.68±2.54 | 0.335 | 0.965 |
| Marital status | 0.151 | 0.697 | ||
| Married | 75 (52.82) | 61 (50.41) | ||
| Unmarried, divorced and widowed | 67 (47.18) | 60 (49.59) | ||
| Nationality | 0.139 | 0.708 | ||
| Han nationality | 73 (51.41) | 65 (53.72) | ||
| Minority nationalities | 69 (48.59) | 56 (46.28) | ||
| Employment status | 0.338 | 0.561 | ||
| Employed | 56 (39.44) | 52 (42.98) | ||
| Laid-off or unemployed | 86 (60.56) | 69 (57.02) | ||
| Smoking history | 0.405 | 0.524 | ||
| Yes | 59 (41.55) | 55 (45.45) | ||
| No | 83 (58.45) | 66 (54.55) | ||
| History of drinking | 0.507 | 0.476 | ||
| Yes | 63 (44.37) | 59 (48.76) | ||
| No | 79 (55.63) | 62 (51.24) | ||
| History of breast disease | 0.581 | 0.445 | ||
| Yes | 91 (64.08) | 72 (59.50) | ||
| No | 51 (35.92) | 49 (40.50) | ||
| Surgery type | 0.102 | 0.905 | ||
| Modified radical mastectomy | 55 (38.73) | 49 (40.50) | ||
| Breast-conserving surgery | 45 (31.69) | 38 (31.40) | ||
| Prosthesis implantation following mastectomy | 42 (29.58) | 34 (28.10) | ||
| Tumor staging | 0.846 | 0.655 | ||
| I | 58 (56.86) | 46 (53.49) | ||
| II | 29 (28.43) | 23 (26.74) | ||
| III | 15 (14.71) | 17 (19.77) | ||
| Cancer type | 0.315 | 0.574 | ||
| Ductal carcinoma | 73 (51.41) | 58 (47.93) | ||
| Lobular carcinoma | 69 (48.59) | 63 (52.07) | ||
| Cancer site | 0.594 | 0.440 | ||
| Left | 83 (58.45) | 65 (53.72) | ||
| Right | 59 (41.55) | 56 (46.28) |